Immunoglobulin receptor superfamily genes

Associate Editor(s)-in-Chief:  Henry A. Hoff

The immunoglobulin receptor superfamily of genes is in the immunoglobulin supergene family.

## Contents

* 1 Human genes
* 1.1 B lymphocyte genes
* 1.2 Netrin genes
* 1.3 Immunoglobulin E genes
* 1.4 Immunoglobulin G genes
* 1.5 Killer cell genes
* 1.6 Leukocyte genes
* 1.7 Polymeric molecule genes
* 1.8 Hepatitis A virus cell genes
* 1.9 Fc genes
* 1.10 Osteoclast genes
* 1.11 Immunoglobulin like domain genes
* 2 Acknowledgements
* 3 See also
* 4 References
* 5 External links

## Human genes

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### B lymphocyte genes

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Gene ID: 973 is CD79A CD79a molecule on 19q13.2: "The B lymphocyte antigen receptor is a multimeric complex that includes the antigen-specific component, surface immunoglobulin (Ig). Surface Ig non-covalently associates with two other proteins, Ig-alpha and Ig-beta, which are necessary for expression and function of the B-cell antigen receptor. This gene encodes the Ig-alpha protein of the B-cell antigen component. Alternatively spliced transcript variants encoding different isoforms have been described."[1]

1. NP_001774.1 B-cell antigen receptor complex-associated protein alpha chain isoform 1 precursor: "Transcript Variant: This variant (1) represents the longer transcript and encodes the longer isoform (1)."[1] smart00410 Location: 39 → 125 IG_like; Immunoglobulin like.[1]
2. NP_067612.1 B-cell antigen receptor complex-associated protein alpha chain isoform 2 precursor: "Transcript Variant: This variant (2) uses an alternate in-frame splice site compared to variant 1. The resulting isoform (2) has the same N- and C-termini but is shorter compared to isoform 1."[1] smart00410 Location: 39 → 68 IG_like; Immunoglobulin like.[1]

Gene ID: 974 is CD79B CD79b molecule on 17q23.3: "The B lymphocyte antigen receptor is a multimeric complex that includes the antigen-specific component, surface immunoglobulin (Ig). Surface Ig non-covalently associates with two other proteins, Ig-alpha and Ig-beta, which are necessary for expression and function of the B-cell antigen receptor. This gene encodes the Ig-beta protein of the B-cell antigen component. Alternatively spliced transcript variants encoding different isoforms have been described."[2]

1. NP_000617.1 B-cell antigen receptor complex-associated protein beta chain isoform 1 precursor: "Transcript Variant: This variant (1) uses an alternate in-frame splice site in the 5' coding region, compared to variant 3. The encoded isoform (1) is shorter compared to isoform 3, but has identical N- and C- termini."[2] cd16096 Location: 51 → 142 IgV_CD79b_beta; Immunoglobulin variable domain (IgV).[2]
2. NP_001035022.1 B-cell antigen receptor complex-associated protein beta chain isoform 3 precursor: "Transcript Variant: This variant (3) represents the longest transcript and encodes the longest isoform (3)."[2] smart00410 Location: 51 → 143 IG_like; Immunoglobulin like and pfam07686 Location: 49 → 143 V-set; Immunoglobulin V-set domain.[2]
3. NP_001315979.1 B-cell antigen receptor complex-associated protein beta chain isoform 4 precursor: "Transcript Variant: This variant (4) lacks an alternate in-frame exon in its 5' coding region compared to variant 3. The encoded isoform (4) is shorter than isoform 3."[2]
4. NP_067613.1 B-cell antigen receptor complex-associated protein beta chain isoform 2 precursor: "Transcript Variant: This variant (2) uses an alternate in-frame splice site and also lacks an exon in the coding region, compared to variant 3. The encoded isoform (2) is shorter compared to isoform 3, but has identical N- and C- termini."[2]

### Netrin genes

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Gene ID: 1630 is DCC DCC netrin 1 receptor on 18q21.2: "This gene encodes a netrin 1 receptor. The transmembrane protein is a member of the immunoglobulin superfamily of cell adhesion molecules, and mediates axon guidance of neuronal growth cones towards sources of netrin 1 ligand. The cytoplasmic tail interacts with the tyrosine kinases Src and focal adhesion kinase (FAK, also known as PTK2) to mediate axon attraction. The protein partially localizes to lipid rafts, and induces apoptosis in the absence of ligand. The protein functions as a tumor suppressor, and is frequently mutated or downregulated in colorectal cancer and esophageal carcinoma."[3] cd05722 Location: 41 → 136 Ig1_Neogenin; First immunoglobulin (Ig)-like domain in neogenin and similar proteins, smart00408 Location: 153 → 219 IGc2; Immunoglobulin C-2 Type, smart00410 Location: 147 → 224 IG_like; Immunoglobulin like, pfam07679 Location: 331 → 417 I-set; Immunoglobulin I-set domain and cl11960 Location: 347 → 417 Ig; Immunoglobulin domain.[3]

### Immunoglobulin E genes

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Gene ID: 2208 is FCER2 Fc fragment of IgE receptor II on 19p13.2: "The protein encoded by this gene is a B-cell specific antigen, and a low-affinity receptor for IgE. It has essential roles in B cell growth and differentiation, and the regulation of IgE production. This protein also exists as a soluble secreted form, then functioning as a potent mitogenic growth factor. Alternatively spliced transcript variants encoding different isoforms have been described for this gene."[4]

1. NP_001193948.2 low affinity immunoglobulin epsilon Fc receptor isoform b: "Transcript Variant: This variant (2) contains an alternate 5' terminal exon and it thus differs in the 5' UTR and 5' coding region, compared to variant 1. The encoded isoform (b, also known as CD23b) is shorter and has a distinct N-terminus, compared to isoform a. This variant is supported by data in PubMed IDs 12379312 and 15843555."[4]
2. NP_001207429.1 low affinity immunoglobulin epsilon Fc receptor isoform a: "Transcript Variant: This variant (3) uses an alternate donor splice site in the 5' UTR, compared to variant 1. Both variants 1 and 3 encode the same isoform (a, also known as CD23a)."[4]
3. NP_001993.2 low affinity immunoglobulin epsilon Fc receptor isoform a: "Transcript Variant: This variant (1) encodes the longer isoform (a, also known as CD23a). Both variants 1 and 3 encode the same isoform."[4]

### Immunoglobulin G genes

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Gene ID: 2209 is FCGR1A Fc fragment of IgG receptor Ia on 1q21.2: "This gene encodes a protein that plays an important role in the immune response. This protein is a high-affinity Fc-gamma receptor. The gene is one of three related gene family members located on chromosome 1."[5]

1. NP_000557.1 high affinity immunoglobulin gamma Fc receptor I isoform 2 precursor [variant 2].[5] cd05752 Location: 22 → 100 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, pfam00047 Location: 196 → 274 Ig; Immunoglobulin domain, and cd05753 Location: 104 → 185 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins.[5]
2. NP_001365733.1 high affinity immunoglobulin gamma Fc receptor I isoform 1 precursor [variant 1].[5]
3. NP_001365734.1 high affinity immunoglobulin gamma Fc receptor I isoform 3 precursor [variant 3].[5]
4. NP_001365735.1 high affinity immunoglobulin gamma Fc receptor I isoform 4 precursor [variant 4].[5]
5. NP_001365736.1 high affinity immunoglobulin gamma Fc receptor I isoform 5 [variant 5].[5]
6. NP_001365737.1 high affinity immunoglobulin gamma Fc receptor I isoform 6 precursor [variant 6].[5]
7. NP_001365738.1 high affinity immunoglobulin gamma Fc receptor I isoform 7 precursor [variant 7].[5]
8. NP_001365739.1 high affinity immunoglobulin gamma Fc receptor I isoform 8 precursor [variant 8].[5]
9. NP_001365740.1 high affinity immunoglobulin gamma Fc receptor I isoform 9 precursor [variant 9].[5]

Gene ID: 2212 is FCGR2A Fc fragment of IgG receptor IIa on 1q23.3: "This gene encodes one member of a family of immunoglobulin Fc receptor genes found on the surface of many immune response cells. The protein encoded by this gene is a cell surface receptor found on phagocytic cells such as macrophages and neutrophils, and is involved in the process of phagocytosis and clearing of immune complexes. Alternative splicing results in multiple transcript variants."[6]

1. NP_001129691.1 low affinity immunoglobulin gamma Fc region receptor II-a isoform 1 precursor: "Transcript Variant: This variant (1) represents the longer transcript and encodes the longer isoform (1)."[6] cd05752 Location: 41 → 119 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, cd05753 Location: 123 → 205 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, smart00410 Location: 129 → 205 IG_like; Immunoglobulin like.[6]
2. NP_001362225.1 low affinity immunoglobulin gamma Fc region receptor II-a isoform 3 precursor [variant 3].[6]
3. NP_001362226.1 low affinity immunoglobulin gamma Fc region receptor II-a isoform 4 precursor [variant 4].[6]
4. NP_067674.2 low affinity immunoglobulin gamma Fc region receptor II-a isoform 2 precursor: "Transcript Variant: This variant (2) uses an alternate in-frame splice site in the 5' coding region, compared to variant 1, resulting in a shorter protein (isoform 2), compared to isoform 1."[6] cd05752 Location: 40 → 118 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, cd05753 Location: 122 → 204 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins and smart00410 Location: 128 → 204 IG_like; Immunoglobulin like.[6]

Gene ID: 2213 is FCGR2B Fc fragment of IgG receptor IIb on 1q23.3: "The protein encoded by this gene is a low affinity receptor for the Fc region of immunoglobulin gamma complexes. The encoded protein is involved in the phagocytosis of immune complexes and in the regulation of antibody production by B-cells. Variations in this gene may increase susceptibilty to systemic lupus erythematosus (SLE). Several transcript variants encoding different isoforms have been found for this gene."[7]

1. NP_001002273.1 low affinity immunoglobulin gamma Fc region receptor II-b isoform 2 precursor: "Transcript Variant: This variant (2) lacks an alternate in-frame exon and uses an alternate in-frame splice junction at the 5' end of an exon compared to variant 1. The resulting isoform (2) has the same N- and C-termini but is shorter compared to isoform 1."[7] cd05752 Location: 49 → 127 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins and cd05753 Location: 131 → 213 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins.[7]
2. NP_001002274.1 low affinity immunoglobulin gamma Fc region receptor II-b isoform 3 precursor: "Transcript Variant: This variant (3) lacks an alternate in-frame exon compared to variant 1. The resulting isoform (3) has the same N- and C-termini but is shorter compared to isoform 1."[7] cd05752 Location: 50 → 128 Ig1_FcgammaR_like; First immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins and cd05753 Location: 132 → 214 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins.[7]
3. NP_001002275.1 low affinity immunoglobulin gamma Fc region receptor II-b isoform 4 precursor: "Transcript Variant: This variant (4) uses an alternate in-frame splice junction at the 5' end of an exon compared to variant 1. The resulting isoform (4) has the same N- and C-termini but is 1 aa shorter compared to isoform 1."[7] cd05752 Location: 49 → 127 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins and cd05753 Location: 131 → 213 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins.[7]
4. NP_001177757.1 low affinity immunoglobulin gamma Fc region receptor II-b isoform 5: "Transcript Variant: This variant (5) lacks an alternate in-frame exon compared to variant 1. The resulting isoform (5) has the same N- and C-termini but is shorter compared to isoform 1."[7] cd05752 Location: 43 → 121 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, cd05753 Location: 125 → 207 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, and smart00410 Location: 131 → 207 IG_like; Immunoglobulin like.[7]
5. NP_003992.3 low affinity immunoglobulin gamma Fc region receptor II-b isoform 1 precursor: "Transcript Variant: This variant (1) represents the longest transcript and encodes the longest isoform (1)."[7] cd05752 Location: 50 → 128 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins and cd05753 Location: 132 → 214 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins.[7]

Gene ID: 2214 is FCGR3A Fc fragment of IgG receptor IIIa on 1q23.3: "This gene encodes a receptor for the Fc portion of immunoglobulin G, and it is involved in the removal of antigen-antibody complexes from the circulation, as well as other other antibody-dependent responses. This gene (FCGR3A) is highly similar to another nearby gene (FCGR3B) located on chromosome 1. The receptor encoded by this gene is expressed on natural killer (NK) cells as an integral membrane glycoprotein anchored through a transmembrane peptide, whereas FCGR3B is expressed on polymorphonuclear neutrophils (PMN) where the receptor is anchored through a phosphatidylinositol (PI) linkage. Mutations in this gene have been linked to susceptibility to recurrent viral infections, susceptibility to systemic lupus erythematosus, and alloimmune neonatal neutropenia. Alternatively spliced transcript variants encoding different isoforms have been found for this gene."[8]

1. NP_000560.7 low affinity immunoglobulin gamma Fc region receptor III-A isoform a precursor: "Transcript Variant: This variant (1) retains an intron in its 5' UTR and 5' coding region compared to variant 3.Variants 1, 3, 4 and 6 encode the same isoform (c).compared to isoform c."[8]
2. NP_001121064.2 low affinity immunoglobulin gamma Fc region receptor III-A isoform b: "Transcript Variant: This variant (2) retains an intron in its 5' UTR and 5' coding region, and uses an alternate in-frame splice site in its 5' coding region compared to variant 3. The encoded isoform (2) is longer than isoform c. This isoform (b) lacks a predicted signal peptide compared to isoform c."[8]
3. NP_001121065.1 low affinity immunoglobulin gamma Fc region receptor III-A isoform c precursor: "Transcript Variant: This variant (3) encodes isoform c. Variants 3, 4 and 6 encode the same isoform (c)."[8] cd05752 Location: 26 → 104 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, cd05753 Location: 108 → 190 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, and smart00410 Location: 32 → 104 IG_like; Immunoglobulin like.[8]
4. NP_001121067.1 low affinity immunoglobulin gamma Fc region receptor III-A isoform c precursor: "Transcript Variant: This variant (4) differs in the 5' UTR compared to variant 3. Variants 3, 4 and 6 encode the same isoform (c)."[8] cd05752 Location: 26 → 104 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, cd05753 Location: 108 → 190 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, and smart00410 Location: 32 → 104 IG_like; Immunoglobulin like.[8]
5. NP_001121068.1 low affinity immunoglobulin gamma Fc region receptor III-A isoform d precursor: "Transcript Variant: This variant (5) uses an alternate in-frame splice site in the 5' coding region compared to variant 3. The encoded isoform (d) is shorter than isoform c."[8] cd05752 Location: 25 → 103 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins and cd05753 Location: 107 → 189 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins.[8]
6. NP_001316049.1 low affinity immunoglobulin gamma Fc region receptor III-A isoform c precursor: "Transcript Variant: This variant (6) differs in the 5' UTR compared to variant 3. Variants 3, 4 and 6 encode the same isoform (c)."[8] cd05752 Location: 26 → 104 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, cd05753 Location: 108 → 190 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, and smart00410 Location: 32 → 104 IG_like; Immunoglobulin like.[8]
7. NP_001316051.1 low affinity immunoglobulin gamma Fc region receptor III-A isoform e: "Transcript Variant: This variant (7) retains an intron in its 5' UTR and 5' coding region, and lacks an alternate in-frame exon in its 3' coding region compared to variant 3. The encoded isoform is longer than isoform c. This isoform (e) lacks a predicted signal peptide compared to isoform c."[8]

### Killer cell genes

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Gene ID: 3802 is KIR2DL1 killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 1 on 19q13.42: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response."[9]

1. NP_055033.2 killer cell immunoglobulin-like receptor 2DL1 precursor, cl11960 Location: 28 → 122 Ig; Immunoglobulin domain.[9]

Gene ID: 3803 is KIR2DL2 killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 2 on 19q13.4: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response."[10]

1. NP_055034.2 killer cell immunoglobulin-like receptor 2DL2 precursor, cd05711 Location: 28 → 122 Ig_FcalphaRI; Immunoglobulin (IG)-like domain of of FcalphaRI cl11960 Location: 128 → 216 Ig; Immunoglobulin domain.[10]

Gene ID: 3804 is KIR2DL3 killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 3 on 19q13.42: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response."[11]

1. NP_056952.2 killer cell immunoglobulin-like receptor 2DL3 precursor, cd05711 Location: 28 → 122 Ig_FcalphaRI; Immunoglobulin (IG)-like domain of of FcalphaRI cl11960 Location: 128 → 216 Ig; Immunoglobulin domain.[11]

Gene ID: 3805 is KIR2DL4 killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 4 on 19q13.42: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response. This gene is one of the "framework" loci that is present on all haplotypes. Alternate alleles of this gene are represented on multiple alternate reference loci (ALT_REF_LOCs). Alternative splicing results in multiple transcript variants, some of which may not be annotated on the primary reference assembly."[12]

1. NP_001074239.1 killer cell immunoglobulin-like receptor 2DL4 isoform c precursor: "Transcript Variant: This variant (3) lacks an internal exon in the coding region, compared to variant 1. It encodes isoform c, which is shorter than isoform a."[12] cl11960 Location: 30 → 119 Ig; Immunoglobulin domain.[12]
2. NP_001074241.1 killer cell immunoglobulin-like receptor 2DL4 isoform b precursor: "Transcript Variant: This variant (2) is one nt shorter than variant 1. It encodes isoform b, which is shorter and has a distinct C-terminus, compared to isoform a."[12] smart00410 Location: 37 → 98 IG_like; Immunoglobulin like and cl11960 Location: 30 → 119 Ig; Immunoglobulin domain.[12]
3. NP_002246.5 killer cell immunoglobulin-like receptor 2DL4 isoform a precursor: "This variant (1) represents the longest transcript and encodes the longest isoform (1)."[12] smart00410 Location: 37 → 98 IG_like; Immunoglobulin like and cl11960 Location: 30 → 119 Ig; Immunoglobulin domain.[12]

Gene ID: 3806 is KIR2DS1 killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 1 aka MHC class I NK cell receptor Eb6 ActI on 19q13.4: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response."[13]

1. NP_055327.1 killer cell immunoglobulin-like receptor 2DS1 precursor, cl11960 Location: 28 → 122 Ig; Immunoglobulin domain.[13]

Gene ID: 3808 is KIR2DS3 killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 3 on 19q13.4: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response."[14]

1. NP_036445.1 killer cell immunoglobulin-like receptor 2DS3 precursor, cd05711 Location: 28 → 122 Ig_FcalphaRI; Immunoglobulin (IG)-like domain of of FcalphaRI and cl11960 Location: 128 → 216 Ig; Immunoglobulin domain.[14]

Gene ID: 3809 is KIR2DS4 killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 4 on 19q13.42: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response."[15]

1. NP_001268900.1 killer cell immunoglobulin-like receptor 2DS4 isoform 2 precursor: "Transcript Variant: This variant (2) represents the 22nt deletion allele KIR2DS4*003 which results in a frameshift and loss of the C-terminal membrane binding domain. The resulting protein (isoform 2) has a distinct C-teminus and is likely secreted."[15] cd05711 Location: 28 → 122 Ig_FcalphaRI; Immunoglobulin (IG)-like domain of of FcalphaRI and cl11960 Location: 128 → 151 Ig; Immunoglobulin domain.[15]
2. NP_001268901.1 killer cell immunoglobulin-like receptor 2DS4 isoform 3 precursor: "Transcript Variant: This variant (3) represents a 22nt deletion allele which also lacks a coding exon. The resulting protein (isoform 3) is frameshifted and lacks the C-terminal membrane binding domain found in the functional allele (KRI2DS4*001)."[15] cd05711 Location: 28 → 122 Ig_FcalphaRI; Immunoglobulin (IG)-like domain of of FcalphaRI and cl11960 Location: 128 → 151 Ig; Immunoglobulin domain.[15]
3. NP_036446.3 killer cell immunoglobulin-like receptor 2DS4 isoform 1 precursor: "Transcript Variant: This variant (1) represents the functional allele (KIR2DS4*001) and encodes a functional, membrane-bound, activating receptor (isoform 1)."[15] cl11960 Location: 28 → 122 Ig; Immunoglobulin domain.[15]

Gene ID: 3810 is KIR2DS5 killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 5: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response."[16]

1. NP_055328.2 killer cell immunoglobulin-like receptor 2DS5 precursor, cd05711 Location: 28 → 122 Ig2_LILR_KIR_like; Second immunoglobulin (Ig)-like domain found in Leukocyte Ig-like receptors, natural and similar domains and cl11960 Location: 128 → 216 Ig; Immunoglobulin domain.[16]

Gene ID: 3811 is KIR3DL1 killer cell immunoglobulin like receptor, three Ig domains and long cytoplasmic tail 1 on 19q13.42: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response."[17]

1. NP_001309097.1 killer cell immunoglobulin-like receptor 3DL1 precursor: "Transcript Variant: This variant (2) represents an alternate allele of the KIR3DL1 gene, as represented in ALT_REF_LOCI_30."[17] cd05711 Location: 123 → 217 Ig_FcalphaRI; Immunoglobulin (IG)-like domain of of FcalphaRI, smart00410 Location: 35 → 98 IG_like; Immunoglobulin like, and cl11960 Location: 223 → 311 Ig; Immunoglobulin domain.[17]
2. NP_037421.2 killer cell immunoglobulin-like receptor 3DL1 precursor: "Transcript Variant: This variant (1) represents the reference genome allele of the KIR3DL1 gene."[17] cd05711 Location: 123 → 217 Ig2_LILR_KIR_like; Second immunoglobulin (Ig)-like domain found in Leukocyte Ig-like receptors, natural and similar domains and cl11960 Location: 223 → 311 Ig; Immunoglobulin domain.[17]

Gene ID: 3812 is KIR3DL2 killer cell immunoglobulin like receptor, three Ig domains and long cytoplasmic tail 2 on 19q13.42: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response. This gene is one of the "framework" loci that is present on all haplotypes. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene."[18]

1. NP_001229796.1 killer cell immunoglobulin-like receptor 3DL2 isoform 2 precursor: "Transcript Variant: This variant (2) lacks an exon in the coding region but maintains the reading frame, compared to variant 1. The encoded isoform (2) is shorter than isoform 1."[18] cd05711 Location: 28 → 117 Ig_FcalphaRI; Immunoglobulin (IG)-like domain of of FcalphaRI, smart00410 Location: 35 → 98 IG_like; Immunoglobulin like, and cl11960 Location: 223 → 311 Ig; Immunoglobulin domain.[18]
2. NP_006728.2 killer cell immunoglobulin-like receptor 3DL2 isoform 1 precursor: "Transcript Variant: This variant (1) represents the longer transcript and encodes the longer isoform (1)."[18] cd05711 Location: 28 → 117 Ig2_LILR_KIR_like; Second immunoglobulin (Ig)-like domain found in Leukocyte Ig-like receptors, natural and similar domains and cl11960 Location: 223 → 311 Immunoglobulin domain.[18]

Gene ID: 3813 is KIR3DS1 killer cell immunoglobulin like receptor, three Ig domains and short cytoplasmic tail 1 on 19q13.4: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response. Alternatively spliced transcript variants encoding different isoforms have been found for this gene."[19]

1. NP_001077008.1 killer cell immunoglobulin-like receptor 3DS1 isoform 1 precursor: "Transcript Variant: This variant (1) encodes the longest isoform (1)."[19] cl11960 Location: 28 → 117 Ig; Immunoglobulin domain.[19]
2. NP_001269099.1 killer cell immunoglobulin-like receptor 3DS1 isoform 2 precursor: "Transcript Variant: This variant (2) lacks an in-frame exon in the 5' coding region, compared to variant 1. The resulting isoform (2) lacks an internal segment, compared to isoform 1."[19] cd05711 Location: 28 → 122 Ig_FcalphaRI; Immunoglobulin (IG)-like domain of of FcalphaRI and cl11960 Location: 128 → 216 Ig; Immunoglobulin domain.[19]
3. NP_001269100.1 killer cell immunoglobulin-like receptor 3DS1 isoform 3: "Transcript Variant: This variant (3) lacks two consecutive exons in the 5' coding region, compared to variant 1. The resulting isoform (3) lacks an internal segment, compared to isoform 1."[19] cd05711 Location: 16 → 110 Ig_FcalphaRI; Immunoglobulin (IG)-like domain of of FcalphaRI and cl11960 Location: 116 → 204 Ig; Immunoglobulin domain.[19]

Gene ID: 115653 is KIR3DL3 killer cell immunoglobulin like receptor, three Ig domains and long cytoplasmic tail 3 on 19q13.42: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response. This gene is one of the "framework" loci that is present on all haplotypes."[20]

1. NP_703144.3 killer cell immunoglobulin-like receptor 3DL3 precursor, cd05711 Location: 123 → 217 Ig_FcalphaRI; Immunoglobulin (IG)-like domain of of FcalphaRI, smart00410 Location: 35 → 95 IG_like; Immunoglobulin like, and cl11960 Location: 28 → 117 Ig; Immunoglobulin domain.[20]

Gene ID: 57292 is KIR2DL5A killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 5A on 19p13.3: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response."[21]

1. NP_065396.1 killer cell immunoglobulin-like receptor 2DL5A precursor.[21] cl11960 Location: 28 → 117 Ig; Immunoglobulin domain.[21]

Gene ID: 553128 is KIR2DL5B killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 5B on 19p13.3: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response."[22]

1. NP_001018091.1 killer cell immunoglobulin-like receptor 2DL5B precursor.[22] smart00410 Location: 160 → 256 IG_like; Immunoglobulin like and pfam07686 Location: 35 → 142 V-set; Immunoglobulin V-set domain.[22]

Gene ID: 100132285 is KIR2DS2 killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 2 on 19q13.4: "Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response. This gene represents a haplotype-specific family member that encodes a protein with a short cytoplasmic tail. Alternative splicing results in multiple transcript variants."[23]

1. NP_001278624.1 killer cell immunoglobulin-like receptor 2DS2 isoform b precursor: "Transcript Variant: This variant (2) uses an alternate splice site in its 3' terminal exon, and it thus differs in the 3' coding region, compared to variant 1. The encoded isoform (b) has a distinct C-terminus and is longer than isoform a."[23] cd05711 Location: 28 → 122 Ig_FcalphaRI; Immunoglobulin (IG)-like domain of of FcalphaRI and cl11960 Location: 128 → 216 Ig; Immunoglobulin domain.[23]
2. NP_001278625.1 killer cell immunoglobulin-like receptor 2DS2 isoform c precursor: "Transcript Variant: This variant (3) lacks an alternate in-frame exon in the 5' coding region, compared to variant 1, resulting in an isoform (c, also known as nkat5-delta-Ig1) that is shorter than isoform a."[23] cl11960 Location: 28 → 116 Ig; Immunoglobulin domain.[23]
3. NP_001278629.1 killer cell immunoglobulin-like receptor 2DS2 isoform d precursor: "Transcript Variant: This variant (4) lacks two alternate in-frame exons that encompass parts of the 5' and central coding regions, compared to variant 1. The encoded isoform (d) is shorter than isoform a."[23]
4. NP_001278630.1 killer cell immunoglobulin-like receptor 2DS2 isoform e precursor: "Transcript Variant: This variant (5) lacks an alternate in-frame exon in the 3' coding region, compared to variant 1, resulting in an isoform (e) that is shorter than isoform a."[23] cd05711 Location: 28 → 122 Ig2_LILR_KIR_like; Second immunoglobulin (Ig)-like domain found in Leukocyte Ig-like receptors, natural and similar domains and cl11960 Location: 128 → 216 Ig; Immunoglobulin domain.[23]
5. NP_036444.1 killer cell immunoglobulin-like receptor 2DS2 isoform a precursor: "Transcript Variant: This variant (1) represents the longest transcript and encodes isoform a."[23] cd05711 Location: 28 → 122 Ig2_LILR_KIR_like; Second immunoglobulin (Ig)-like domain found in Leukocyte Ig-like receptors, natural and similar domains and cl11960 Location: 128 → 216 Ig; Immunoglobulin domain.[23]

### Leukocyte genes

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Gene ID: 3903 is LAIR1 leukocyte associated immunoglobulin like receptor 1 on 19q13.42: "The protein encoded by this gene is an inhibitory receptor found on peripheral mononuclear cells, including natural killer cells, T cells, and B cells. Inhibitory receptors regulate the immune response to prevent lysis of cells recognized as self. The gene is a member of both the immunoglobulin superfamily and the leukocyte-associated inhibitory receptor family. The gene maps to a region of 19q13.4 called the leukocyte receptor cluster, which contains at least 29 genes encoding leukocyte-expressed receptors of the immunoglobulin superfamily. The encoded protein has been identified as an anchor for tyrosine phosphatase SHP-1, and may induce cell death in myeloid leukemias. Alternative splicing results in multiple transcript variants."[24]

1. NP_001275952.2 leukocyte-associated immunoglobulin-like receptor 1 isoform c precursor: "Transcript Variant: This variant (c) lacks an in-frame exon and uses an alternate in-frame splice site in the central coding region, compared to variant 1. The encoded isoform (c) is shorter, compared to isoform a."[24] cl11960 Location: 26 → 119 Ig; Immunoglobulin domain.[24]
2. NP_001275954.2 leukocyte-associated immunoglobulin-like receptor 1 isoform e precursor: "Transcript Variant: This variant (e) uses an alternate in-frame splice site in the central coding region. The encoded isoform (e) is shorter, compared to isoform a."[24] cl11960 Location: 26 → 119 Ig; Immunoglobulin domain.[24]
3. NP_001275955.2 leukocyte-associated immunoglobulin-like receptor 1 isoform f: "Transcript Variant: This variant (f) differs in the 5' UTR, lacks part of the 5' coding region, and uses an alternate start codon, compared to variant a. The encoded isoform (f) has a shorter and distinct N-terminus, compared to isoform a."[24] cl11960 Location: 20 → 113 Ig; Immunoglobulin domain.[24]
4. NP_001275956.2 leukocyte-associated immunoglobulin-like receptor 1 isoform g: "Transcript Variant: This variant (g) differs in the 5' UTR, lacks part of the 5' coding region, and uses an alternate start codon, compared to variant a. The encoded isoform (g) has a shorter and distinct N-terminus, compared to isoform a."[24] cl11960 Location: 9 → 102 Ig; Immunoglobulin domain.[24]
5. NP_002278.2 leukocyte-associated immunoglobulin-like receptor 1 isoform a precursor: "Transcript Variant: This variant (a) encodes the longest isoform (a)."[24] cl11960 Location: 27 → 120 Ig; Immunoglobulin domain.[24]
6. NP_068352.2 leukocyte-associated immunoglobulin-like receptor 1 isoform b precursor: "Transcript Variant: This variant (b) lacks an in-frame exon in the central coding region, compared to variant 1. The encoded isoform (b) is shorter, compared to isoform a."[24] cl11960 Location: 27 → 120 Ig; Immunoglobulin domain.[24]

Gene ID: 3904 is LAIR2 leukocyte associated immunoglobulin like receptor 2 on 19q13.42: "The protein encoded by this gene is a member of the immunoglobulin superfamily. It was identified by its similarity to leukocyte-associated immunoglobulin-like receptor 1, a membrane-bound receptor that modulates innate immune response. The protein encoded by this locus is a soluble receptor that may play roles in both inhibition of collagen-induced platelet aggregation and vessel formation during placental implantation. This gene maps to a region of 19q13.4, termed the leukocyte receptor cluster, which contains 29 genes in the immunoglobulin superfamily. Alternatively spliced transcript variants have been described for this gene."[25]

1. NP_002279.2 leukocyte-associated immunoglobulin-like receptor 2 isoform a precursor: "Transcript Variant: This variant (1) represents the longer transcript and encodes the longer isoform (a)."[25] cl11960 Location: 27 → 120 Ig; Immunoglobulin domain.[25]
2. NP_067154.1 leukocyte-associated immunoglobulin-like receptor 2 isoform b precursor: "Transcript Variant: This variant (2) lacks an alternate in-frame exon compared to variant 1, resulting in an isoform (b) which is shorter compared to isoform a."[25] smart00410 Location: 35 → 101 IG_like; Immunoglobulin like and cl11960 Location: 27 → 120 Ig; Immunoglobulin domain.[25]

Gene ID: 10288 is LILRB2 leukocyte immunoglobulin like receptor B2 on 19q13.42: "This gene is a member of the leukocyte immunoglobulin-like receptor (LIR) family, which is found in a gene cluster at chromosomal region 19q13.4. The encoded protein belongs to the subfamily B class of LIR receptors which contain two or four extracellular immunoglobulin domains, a transmembrane domain, and two to four cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs). The receptor is expressed on immune cells where it binds to MHC class I molecules on antigen-presenting cells and transduces a negative signal that inhibits stimulation of an immune response. It is thought to control inflammatory responses and cytotoxicity to help focus the immune response and limit autoreactivity. Multiple transcript variants encoding different isoforms have been found for this gene."[26]

1. NP_001074447.2 leukocyte immunoglobulin-like receptor subfamily B member 2 isoform 2 precursor: "Transcript Variant: This variant (2) uses an alternate in-frame splice site in the central coding region, compared to variant 1. The encoded isoform (2) is shorter, compared to isoform 1. Both variants 2 and 3 encode the same isoform."[26] smart00410 Location: 231 → 296 IG_like; Immunoglobulin like and cl11960 Location: 27 → 118 Ig; Immunoglobulin domain.[26]
2. NP_001265332.2 leukocyte immunoglobulin-like receptor subfamily B member 2 isoform 2 precursor: "Transcript Variant: This variant (3) differs in the 5' UTR and uses an alternate in-frame splice site in the central coding region, compared to variant 1. The encoded isoform (2) is shorter, compared to isoform 1. Both variants 2 and 3 encode the same isoform."[26] smart00410 Location: 231 → 296 IG_like; Immunoglobulin like and cl11960 Location: 27 → 118 Ig; Immunoglobulin domain.[26]
3. NP_001265333.2 leukocyte immunoglobulin-like receptor subfamily B member 2 isoform 3: "Transcript Variant: This variant (4) lacks a portion of the 5' coding region, and uses a downstream in-frame start codon, compared to variant 1. The encoded isoform (3) has a shorter N-terminus, compared to isoform 1."[26] smart00410 Location: 115 → 180 IG_like; Immunoglobulin like and cl11960 Location: 7 → 102 Ig; Immunoglobulin domain.[26]
4. NP_001265334.2 leukocyte immunoglobulin-like receptor subfamily B member 2 isoform 4 precursor: "Transcript Variant: This variant (5) has a shorter 5' UTR, and lacks an internal exon which results in a frameshift and an early stop codon, compared to variant 1. The encoded isoform (4) has a shorter and distinct C-terminus, compared to isoform 1."[26] smart00410 Location: 231 → 296 IG_like; Immunoglobulin like and cl11960 Location: 27 → 118 Ig; Immunoglobulin domain.[26]
5. NP_001265335.2 leukocyte immunoglobulin-like receptor subfamily B member 2 isoform 5 precursor: "Transcript Variant: This variant (6) has a shorter 5' UTR, lacks several exons, and its 3'-terminal exon extends past a splice site that is used in variant 1. The resulting protein (isoform 5) has a shorter and distinct C-terminus, compared to isoform 1. Isoform 5 lacks the transmembrane domain found in isoform 1 and is suspected to be soluble (PMID: 19658091)."[26] smart00410 Location: 231 → 296 IG_like; Immunoglobulin like and cl11960 Location: 27 → 118 Ig; Immunoglobulin domain.[26]
6. NP_005865.3 leukocyte immunoglobulin-like receptor subfamily B member 2 isoform 1 precursor: "Transcript Variant: This variant (1) represents the longest transcript and encodes the longest isoform (1)."[26] smart00410 Location: 231 → 296 IG_like; Immunoglobulin like cl11960 Location: 27 → 118 Ig; Immunoglobulin domain.[26]

Gene ID: 10859 see Immunoglobulin like domain cd05751.

Gene ID: 10990 is LILRB5 leukocyte immunoglobulin like receptor B5 on 19q13.42: "This gene is a member of the leukocyte immunoglobulin-like receptor (LIR) family, which is found in a gene cluster at chromosomal region 19q13.4. The encoded protein belongs to the subfamily B class of LIR receptors which contain two or four extracellular immunoglobulin domains, a transmembrane domain, and two to four cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs). Several other LIR subfamily B receptors are expressed on immune cells where they bind to MHC class I molecules on antigen-presenting cells and inhibit stimulation of an immune response. Multiple transcript variants encoding different isoforms have been found for this gene."[27]

1. NP_001074911.2 leukocyte immunoglobulin-like receptor subfamily B member 5 isoform 1 precursor: "Transcript Variant: This variant (1) encodes isoform 1."[27]
2. NP_001074912.2 leukocyte immunoglobulin-like receptor subfamily B member 5 isoform 3 precursor: "Transcript Variant: This variant (3) lacks an alternate in-frame exon in the 5' coding region compared to variant 1. The encoded isoform (3) is shorter than isoform 1."[27]
3. NP_001291386.2 leukocyte immunoglobulin-like receptor subfamily B member 5 isoform 4 precursor: "Transcript Variant: This variant (4) uses alternate in-frame splice sites in the 5' coding region and in the 3' coding region, compared to variant 1. The encoded isoform (4) is longer than isoform 1."[27]
4. NP_006831.2 leukocyte immunoglobulin-like receptor subfamily B member 5 isoform 2 precursor: "Transcript Variant: This variant (2) uses an alternate in-frame splice site in the 3' coding region compared to variant 1. The encoded isoform (2) is shorter than isoform 1."[27]

Gene ID: 11006 see Immunoglobulin like domain cd05751.

Gene ID: 11024 see Immunoglobulin like domain cd05751.

Gene ID: 11025 see Immunoglobulin like domain cd05751.

Gene ID: 11026 see Immunoglobulin like domain cd05751.

Gene ID: 11027 is LILRA2 leukocyte immunoglobulin like receptor A2 on 19q13.42: "This gene encodes a member of a family of immunoreceptors that are expressed predominantly on monocytes and B cells, and at lower levels on dendritic cells and natural killer cells. The encoded protein is an activating receptor that inhibits dendritic cell differentiation and antigen presentation and suppresses innate immune response. Alternatively spliced transcript variants encoding different isoforms have been found. This gene is located in a cluster of related genes on chromosome 19 and there is a pseudogene for this gene on chromosome 3."[28]

1. NP_001124389.2 leukocyte immunoglobulin-like receptor subfamily A member 2 isoform a precursor: "Transcript Variant: This variant (1) encodes isoform a."[28] smart00410 Location: 35 → 116 IG_like; Immunoglobulin like and cl11960 Location: 27 → 117 Ig; Immunoglobulin domain.[28]
2. NP_001277199.1 leukocyte immunoglobulin-like receptor subfamily A member 2 isoform c precursor: "Transcript Variant: This variant (3) lacks in-frame exons in the 5' and 3' coding regions, compared to variant 1. The encoded isoform (c) is shorter than isoform a."[28] smart00410 Location: 23 → 104 IG_like; Immunoglobulin like and cl11960 Location: 15 → 105 Ig; Immunoglobulin domain.[28]
3. NP_001277200.1 leukocyte immunoglobulin-like receptor subfamily A member 2 isoform d precursor: "Transcript Variant: This variant (4) differs in the 5' UTR, and lacks an exon and contains an alternate exon in the 3' coding region, which results in a frameshift, compared to variant 1. The encoded isoform (d) has a distinct C-terminus and is longer than isoform a."[28] smart00410 Location: 35 → 116 IG_like; Immunoglobulin like and cl11960 Location: 122 → 217 Ig; Immunoglobulin domain.[28]
4. NP_006857.2 leukocyte immunoglobulin-like receptor subfamily A member 2 isoform b precursor: "Transcript Variant: This variant (2) differs in the 5' UTR and lacks an alternate in-frame exon in the 3' coding region, compared to variant 1. The encoded isoform (b) is shorter than isoform a."[28] smart00410 Location: 35 → 116 IG_like; Immunoglobulin like cl11960 Location: 27 → 117 Ig; Immunoglobulin domain.[28]

Gene ID: 23547 is LILRA4 leukocyte immunoglobulin like receptor A4 on 19q13.42: "This gene encodes an immunoglobulin-like cell surface protein that is expressed predominantly on plasmacytoid dendritic cells (PDCs) and modulates the function of these cells in the immune response. Expression of this gene is downregulated by interleukin 3 (IL3). This gene is one of a cluster of highly related genes located at chromosomal region 19q13.4."[29]

1. NP_036408.4 leukocyte immunoglobulin-like receptor subfamily A member 4 precursor, smart00410 Location: 233 → 295 IG_like; Immunoglobulin like and cl11960 Location: 122 → 217 Ig; Immunoglobulin domain.[29]

Gene ID: 353514 see Immunoglobulin like domain cd05751.

### Polymeric molecule genes

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Gene ID: 5284 is PIGR polymeric immunoglobulin receptor on 1q32.1: "This gene is a member of the immunoglobulin superfamily. The encoded poly-Ig receptor binds polymeric immunoglobulin molecules at the basolateral surface of epithelial cells; the complex is then transported across the cell to be secreted at the apical surface. A significant association was found between immunoglobulin A nephropathy and several SNPs in this gene."[30]

1. NP_002635.2 polymeric immunoglobulin receptor precursor, cd05716 Location: 358 → 457 Ig_pIgR_like; Immunoglobulin (Ig)-like domain in the polymeric Ig receptor (pIgR) and similar domains.[30]

### Hepatitis A virus cell genes

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Gene ID: 26762 is HAVCR1 hepatitis A virus cellular receptor 1 on 5q33.3: "The protein encoded by this gene is a membrane receptor for both human hepatitis A virus (HHAV) and TIMD4. The encoded protein may be involved in the moderation of asthma and allergic diseases. The reference genome represents an allele that retains a MTTVP amino acid segment that confers protection against atopy in HHAV seropositive individuals. Alternative splicing of this gene results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 4, 12 and 19."[31]

1. NP_001166864.1 hepatitis A virus cellular receptor 1 isoform a precursor: "Transcript Variant: This variant (3) differs in the 5' UTR compared to variant 1. Both variants 1 and 3 encode isoform a."[31] pfam07686 Location: 21 → 120 V-set; Immunoglobulin V-set domain.[31]
2. NP_001295085.1 hepatitis A virus cellular receptor 1 isoform b precursor: "Transcript Variant: This variant (4) differs in the 5' UTR, and lacks an alternate exon that results in a frameshift in the 3' coding region, compared to variant 1. The encoded isoform (b) has a distinct C-terminus and is longer than isoform a."[31] pfam07686 Location: 21 → 120 V-set; Immunoglobulin V-set domain.[31]
3. NP_036338.2 hepatitis A virus cellular receptor 1 isoform a precursor: "Transcript Variant: This variant (1) encodes the shorter isoform (a). Both variants 1 and 3 encode isoform a."[31] pfam07686 Location: 21 → 120 V-set; Immunoglobulin V-set domain.[31]

Gene ID: 84868 is HAVCR2 hepatitis A virus cellular receptor 2 on 5q33.3: "The protein encoded by this gene belongs to the immunoglobulin superfamily, and TIM family of proteins. CD4-positive T helper lymphocytes can be divided into types 1 (Th1) and 2 (Th2) on the basis of their cytokine secretion patterns. Th1 cells are involved in cell-mediated immunity to intracellular pathogens and delayed-type hypersensitivity reactions, whereas, Th2 cells are involved in the control of extracellular helminthic infections and the promotion of atopic and allergic diseases. This protein is a Th1-specific cell surface protein that regulates macrophage activation, and inhibits Th1-mediated auto- and alloimmune responses, and promotes immunological tolerance."[32]

1. NP_116171.3 hepatitis A virus cellular receptor 2 precursor, smart00410 Location: 26 → 126 IG_like; Immunoglobulin like and pfam07686 Location: 28 → 122 V-set; Immunoglobulin V-set domain.[32]

### Fc genes

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Gene ID: 79368 is FCRL2 Fc receptor like 2 on 1q23.1: "This gene encodes a member of the immunoglobulin receptor superfamily and is one of several Fc receptor-like glycoproteins clustered on the long arm of chromosome 1. The encoded protein has four extracellular C2-type immunoglobulin domains, a transmembrane domain and a cytoplasmic domain that contains one immunoreceptor-tyrosine activation motif and two immunoreceptor-tyrosine inhibitory motifs. This protein may be a prognostic marker for chronic lymphocytic leukemia. Alternatively spliced transcript variants have been described, but their biological validity has not been determined."[33]

1. NP_001152960.1 Fc receptor-like protein 2 isoform 2 precursor: "Transcript Variant: This variant (2) lacks three alternate exons in the 3' coding region, which results in a frameshift, compared to variant 1. The encoded isoform (2) has a distinct C-terminus and is shorter than isoform 1."[33] smart00410 Location: 216 → 288 IG_like; Immunoglobulin like, pfam13895 Location: 23 → 102 Ig_2; Immunoglobulin domain, and pfam13927 Location: 108 → 181 Ig_3; Immunoglobulin domain.[33]
2. NP_110391.2 Fc receptor-like protein 2 isoform 1 precursor: "Transcript Variant: This variant (1) represents the longest transcript and encodes the longer isoform (1)."[33] smart00410 Location: 216 → 288 IG_like; Immunoglobulin like, pfam13895 Location: 23 → 102 Ig_2; Immunoglobulin domain, and pfam13927 Location: 108 → 181 Ig_3; Immunoglobulin domain.[33]

Gene ID: 83416 is FCRL5 Fc receptor like 5 on 1q23.1: "This gene encodes a member of the immunoglobulin receptor superfamily and the Fc-receptor like family. This gene and several other Fc receptor-like gene members are clustered on the long arm of chromosome 1. The encoded protein is a single-pass type I membrane protein and contains 8 immunoglobulin-like C2-type domains. This gene is implicated in B cell development and lymphomagenesis. Alternatively spliced transcript variants encoding different isoforms have been identified."[34]

1. NP_001182317.1 Fc receptor-like protein 5 isoform 2 precursor: "Transcript Variant: This variant (2) has an alternate splice site in the 3' coding region, resulting in frame-shift, as compared to variant 1. The resulting isoform (2) has a different and longer C-terminus, as compared to isoform 1."[34] cd05752 Location: 23 → 100 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, smart00410 Location: 577 → 652 IG_like; Immunoglobulin like, pfam13895 Location: 105 → 185 Ig_2; Immunoglobulin domain, pfam13927 Location: 565 → 638 Ig_3; Immunoglobulin domain.[34]
2. NP_112571.2 Fc receptor-like protein 5 isoform 1 precursor: "Transcript Variant: This variant (1) encodes the dominant isoform (1)."[34] cd05752 Location: 23 → 100 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, smart00410 Location: 577 → 652 IG_like; Immunoglobulin like, pfam13895 Location: 105 → 185 Ig_2; Immunoglobulin domain, pfam13927 Location: 565 → 638 Ig_3; Immunoglobulin domain.[34]

Gene ID: 83417 is FCRL4 Fc receptor like 4 on 1q23.1: "This gene encodes a member of the immunoglobulin receptor superfamily and is one of several Fc receptor-like glycoproteins clustered on the long arm of chromosome 1. The encoded protein has four extracellular C2-type immunoglobulin domains, a transmembrane domain and a cytoplasmic domain that contains three immune-receptor tyrosine-based inhibitory motifs. This protein may play a role in the function of memory B-cells in the epithelia. Aberrations in the chromosomal region encoding this gene are associated with non-Hodgkin lymphoma and multiple myeloma."[35]

1. NP_112572.1 Fc receptor-like protein 4 precursor, cd05752 Location: 23 → 100 Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, smart00410 Location: 295 → 377 IG_like; Immunoglobulin like, pfam13895 Location: 193 → 281 Ig_2; Immunoglobulin domain, and cd05753 Location: 105 → 188mIg2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins.[35]

Gene ID: 115350 is FCRL1 Fc receptor like 1 on 1q23.1: "This gene encodes a member of the immunoglobulin receptor superfamily and is one of several Fc receptor-like glycoproteins clustered on the long arm of chromosome 1. The encoded protein contains three extracellular C2-like immunoglobulin domains, a transmembrane domain and a cytoplasmic domain with two immunoreceptor-tyrosine activation motifs. This protein may play a role in the regulation of cancer cell growth. Alternative splicing results in multiple transcript variants."[36]

1. NP_001152869.1 Fc receptor-like protein 1 isoform 2 precursor: "Transcript Variant: This variant (2) uses an alternate exon in the 3' coding region compared to variant 1, that results in a frameshift. This variant encodes isoform 2, which is shorter and has a distinct C-terminus compared to isoform 1."[36] smart00410 Location: 119 → 201 IG_like; Immunoglobulin like, pfam13895 Location: 115 → 201 Ig_2; Immunoglobulin domain, and pfam13927 Location: 207 → 280 Ig_3; Immunoglobulin domain.[36]
2. NP_001152870.1 Fc receptor-like protein 1 isoform 3 precursor: "Transcript Variant: This variant (3) uses an alternate in-frame splice site in the 3' coding region compared to variant 1. This variant encodes isoform 3, which is shorter than isoform 1."[36] smart00410 Location: 119 → 201 IG_like; Immunoglobulin like, pfam13895 Location: 115 → 201 Ig_2; Immunoglobulin domain, and pfam13927 Location: 207 → 280 Ig_3; Immunoglobulin domain.[36]
3. NP_443170.1 Fc receptor-like protein 1 isoform 1 precursor: "Transcript Variant: This variant (1) represents the longest transcript and encodes the longest isoform (1)."[36] smart00410 Location: 119 → 201 IG_like; Immunoglobulin like, pfam13895 Location: 19 → 90 Ig_2; Immunoglobulin domain, and pfam13927 Location: 207 → 280 Ig_3; Immunoglobulin domain.[36]

Gene ID: 115352 is FCRL3 Fc receptor like 3 aka immunoglobulin superfamily receptor translocation associated protein 3 on 1q23.1: "This gene encodes a member of the immunoglobulin receptor superfamily and is one of several Fc receptor-like glycoproteins clustered on the long arm of chromosome 1. The encoded protein contains immunoreceptor-tyrosine activation motifs and immunoreceptor-tyrosine inhibitory motifs in its cytoplasmic domain and may play a role in regulation of the immune system. Mutations in this gene have been associated with rheumatoid arthritis, autoimmune thyroid disease, and systemic lupus erythematosus. Alternative splicing results in multiple transcript variants."[37]

1. NP_001307262.1 Fc receptor-like protein 3 isoform 3 precursor: "Transcript Variant: This variant (3) encodes the longer isoform (3)."[37] smart00410 Location: 301 → 376 IG_like; Immunoglobulin like, pfam13895 Location: 290 → 376 Ig_2; Immunoglobulin domain, pfam13927 Location: 475 → 548 Ig_3; Immunoglobulin domain, and cl11960 Location: 23 → 97 Ig; Immunoglobulin domain.[37]
2. NP_443171.2 Fc receptor-like protein 3 isoform 1 precursor [variant 1], smart00410 Location: 301 → 376 IG_like; Immunoglobulin like, pfam13895 Location: 290 → 376 Ig_2; Immunoglobulin domain, pfam13927 Location: 475 → 548 Ig_3; Immunoglobulin domain, and cl11960 Location: 23 → 97 Ig; Immunoglobulin domain.[37]

Gene ID: 343413 is FCRL6 Fc receptor like 6 on 1q23.2.[38]

1. NP_001004310.2 Fc receptor-like protein 6 isoform 1 precursor: "Transcript Variant: This variant (1) represents the shorter transcript but encodes the longer protein (isoform 1)."[38] cd05753 Location: 19 → 98 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, smart00410 Location: 123 → 198 IG_like; Immunoglobulin like, pfam13895 Location: 112 → 200 Ig_2; Immunoglobulin domain, and pfam13927 Location: 206 → 280 Ig_3; Immunoglobulin domain.[38]
2. NP_001271146.1 Fc receptor-like protein 6 isoform 2: "Transcript Variant: This variant (2) differs in the 5' UTR and coding region compared to variant 1. The resulting protein (isoform 2) has a shorter N-terminus."[38] cd05753 Location: 26 → 105 Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins, smart00410 Location: 130 → 205 IG_like; Immunoglobulin like, pfam13895 Location: 119 → 207 Ig_2; Immunoglobulin domain and pfam13927 Location: 213 → 287 Ig_3; Immunoglobulin domain.[38]

### Osteoclast genes

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Gene ID: 126014 is OSCAR osteoclast associated Ig-like receptor on 19q13.42: "Osteoclasts are multinucleated cells that resorb bone and are essential for bone homeostasis. This gene encodes an osteoclast-associated receptor (OSCAR), which is a member of the leukocyte receptor complex protein family that plays critical roles in the regulation of both innate and adaptive immune responses. The encoded protein may play a role in oxidative stress-mediated atherogenesis as well as monocyte adhesion. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene."[39]

1. NP_001269278.1 osteoclast-associated immunoglobulin-like receptor isoform 6 precursor: "Transcript Variant: This variant (6) lacks an in-frame exon in the central coding region, compared to variant 1. The encoded isoform (6) is shorter, compared to isoform 1."[39] smart00410 Location: 38 → 100 IG_like; Immunoglobulin like, cl11960 Location :31 → 124 Ig; Immunoglobulin domain.[39]
2. NP_001269279.1 osteoclast-associated immunoglobulin-like receptor isoform 7 precursor: "Transcript Variant: This variant (7) lacks two in-frame exons in the central coding region, compared to variant 1. The encoded isoform (7) is shorter, compared to isoform 1."[39] smart00410 Location: 27 → 89 IG_like; Immunoglobulin like and cl11960 Location: 20 → 113 Ig; Immunoglobulin domain.[39]
3. NP_570127.3 osteoclast-associated immunoglobulin-like receptor isoform 3 precursor: "Transcript Variant: This variant (3) lacks an internal segment in its 3' coding region, compared to variant 1. The encoded isoform (3) has a shorter and distinct C-terminus, compared to isoform 1."[39] smart00410 Location: 42 → 104 IG_like; Immunoglobulin like and cl11960 Location: 35 → 128 Ig; Immunoglobulin domain.[39]
4. NP_573398.2 osteoclast-associated immunoglobulin-like receptor isoform 5 precursor: "Transcript Variant: This variant (5) lacks two in-frame exons in the central coding region and lacks an internal segment in its 3' coding region, compared to variant 1. The encoded isoform (5) is shorter and has a distinct C-terminus, compared to isoform 1."[39] smart00410 Location: 27 → 89 IG_like; Immunoglobulin like and cl11960 Location: 20 → 113 Ig; Immunoglobulin domain.[39]
5. NP_573399.2 osteoclast-associated immunoglobulin-like receptor isoform 4 precursor: "Transcript Variant: This variant (4) lacks an in-frame exon in the central coding region and lacks an internal segment in its 3' coding region, compared to variant 1. The encoded isoform (4) is shorter and has a distinct C-terminus, compared to isoform 1."[39] smart00410 Location: 38 → 100 IG_like; Immunoglobulin like and cl11960 Location: 31 → 124 Ig; Immunoglobulin domain.[39]
6. NP_996554.2 osteoclast-associated immunoglobulin-like receptor isoform 1 precursor: "Transcript Variant: This variant (1) represents the longest transcript and encodes the longest isoform (1)."[39] smart00410 Location: 42 → 104 IG_like; Immunoglobulin like and cl11960 Location: 35 → 128 Ig; Immunoglobulin domain.[39]

### Immunoglobulin like domain genes

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Gene ID: 286676 is ILDR1 immunoglobulin like domain containing receptor 1 on 3q13.33: "This gene encodes a protein that contains an immunoglobulin-like domain. The encoded protein may function as a multimeric receptor at the cell surface. The expression of this gene may be a diagnostic marker for cancer progression. Alternatively spliced transcript variants encoding multiple protein isoforms have been observed for this gene."[40]

1. NP_001186728.1 immunoglobulin-like domain-containing receptor 1 isoform 1 precursor: "Transcript Variant: This variant (1) represents the longest transcript and encodes the longest isoform (1)."[40] cl11960 Location: 39 → 166 Ig; Immunoglobulin domain.[40]
2. NP_001186729.1 immunoglobulin-like domain-containing receptor 1 isoform 3 precursor: "Transcript Variant: This variant (3) lacks multiple exons in the coding region but maintains the reading frame, compared to variant 1. The encoded isoform (3) is shorter than isoform 1."[40]
3. NP_787120.1 immunoglobulin-like domain-containing receptor 1 isoform 2 precursor: "Transcript Variant: This variant (2) lacks an exon in the coding region but maintains the reading frame, compared to variant 1. The encoded isoform (2) is shorter than isoform 1."[40] cl11960 Location: 39 → 166 Ig; Immunoglobulin domain.[40]

## Acknowledgements

[edit | edit source]

The content on this page was first contributed by: Henry A. Hoff.

## See also

[edit | edit source]

* HNF6 gene transcription laboratory

## References

[edit | edit source]

1. ↑ 1.0 1.1 1.2 1.3 1.4 RefSeq (July 2008). "CD79A CD79a molecule [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 14 May 2020.
2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 RefSeq (July 2008). "CD79B CD79b molecule [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 14 May 2020.
3. ↑ 3.0 3.1 RefSeq (October 2009). "DCC DCC netrin 1 receptor [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 23 April 2020.
4. ↑ 4.0 4.1 4.2 4.3 RefSeq (July 2011). "FCER2 Fc fragment of IgE receptor II [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 22 April 2020.
5. ↑ 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 5.10 RefSeq (July 2008). "FCGR1A Fc fragment of IgG receptor Ia [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 22 April 2020.
6. ↑ 6.0 6.1 6.2 6.3 6.4 6.5 6.6 RefSeq (October 2008). "FCGR2A Fc fragment of IgG receptor IIa [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 21 April 2020.
7. ↑ 7.00 7.01 7.02 7.03 7.04 7.05 7.06 7.07 7.08 7.09 7.10 RefSeq (June 2010). "FCGR2B Fc fragment of IgG receptor IIb [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 21 April 2020.
8. ↑ 8.00 8.01 8.02 8.03 8.04 8.05 8.06 8.07 8.08 8.09 8.10 8.11 RefSeq (July 2008). "FCGR3A Fc fragment of IgG receptor IIIa [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 22 April 2020.
9. ↑ 9.0 9.1 RefSeq (July 2008). "KIR2DL1 killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 1 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 23 April 2020.
10. ↑ 10.0 10.1 RefSeq (July 2008). "KIR2DL2 killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 2 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 23 April 2020.
11. ↑ 11.0 11.1 RefSeq (July 2008). "KIR2DL3 killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 3 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 23 April 2020.
12. ↑ 12.0 12.1 12.2 12.3 12.4 12.5 12.6 RefSeq (July 2016). "KIR2DL4 killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 4 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 23 April 2020.
13. ↑ 13.0 13.1 RefSeq (July 2008). "KIR2DS1 killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 1 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 6 April 2020.
14. ↑ 14.0 14.1 RefSeq (July 2008). "KIR2DS3 killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 3 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 24 April 2020.
15. ↑ 15.0 15.1 15.2 15.3 15.4 15.5 15.6 RefSeq (July 2008). "KIR2DS4 killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 4 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 23 April 2020.
16. ↑ 16.0 16.1 RefSeq (July 2008). "KIR2DS5 killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 5 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 28 April 2020.
17. ↑ 17.0 17.1 17.2 17.3 17.4 RefSeq (July 2008). "KIR3DL1 killer cell immunoglobulin like receptor, three Ig domains and long cytoplasmic tail 1 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 22 April 2020.
18. ↑ 18.0 18.1 18.2 18.3 18.4 RefSeq (June 2011). "KIR3DL2 killer cell immunoglobulin like receptor, three Ig domains and long cytoplasmic tail 2 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 27 April 2020.
19. ↑ 19.0 19.1 19.2 19.3 19.4 19.5 19.6 RefSeq (August 2013). "KIR3DS1 killer cell immunoglobulin like receptor, three Ig domains and short cytoplasmic tail 1 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 23 April 2020.
20. ↑ 20.0 20.1 RefSeq (July 2008). "KIR3DL3 killer cell immunoglobulin like receptor, three Ig domains and long cytoplasmic tail 3 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 16 April 2020.
21. ↑ 21.0 21.1 21.2 RefDSeq (July 2008). "IGHV3-30-3 immunoglobulin heavy variable 3-30-3 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 22 May 2020.
22. ↑ 22.0 22.1 22.2 RefSeq (July 2008). "KIR2DL5B killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 5B [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 16 April 2020.
23. ↑ 23.00 23.01 23.02 23.03 23.04 23.05 23.06 23.07 23.08 23.09 RefSeq (April 2014). "KIR2DS2 killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 2 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 16 April 2020.
24. ↑ 24.00 24.01 24.02 24.03 24.04 24.05 24.06 24.07 24.08 24.09 24.10 24.11 24.12 RefSeq (January 2014). "LAIR1 leukocyte associated immunoglobulin like receptor 1 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 16 April 2020.
25. ↑ 25.0 25.1 25.2 25.3 25.4 RefSeq (September 2013). "LAIR2 leukocyte associated immunoglobulin like receptor 2 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 16 April 2020.
26. ↑ 26.00 26.01 26.02 26.03 26.04 26.05 26.06 26.07 26.08 26.09 26.10 26.11 26.12 RefSeq (July 2008). "LILRB2 leukocyte immunoglobulin like receptor B2 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 28 April 2020.
27. ↑ 27.0 27.1 27.2 27.3 27.4 RefSeq (July 2008). "LILRB5 leukocyte immunoglobulin like receptor B5 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 15 May 2020.
28. ↑ 28.0 28.1 28.2 28.3 28.4 28.5 28.6 28.7 28.8 RefSeq (March 2014). "LILRA2 leukocyte immunoglobulin like receptor A2 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 15 May 2020.
29. ↑ 29.0 29.1 RefSeq (January 2015). "LILRA4 leukocyte immunoglobulin like receptor A4 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 16 May 2020.
30. ↑ 30.0 30.1 RefSeq (September 2009). "PIGR polymeric immunoglobulin receptor [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 16 April 2020.
31. ↑ 31.0 31.1 31.2 31.3 31.4 31.5 31.6 RefSeq (April 2015). "HAVCR1 hepatitis A virus cellular receptor 1 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 22 April 2020.
32. ↑ 32.0 32.1 RefSeq (September 2011). "HAVCR2 hepatitis A virus cellular receptor 2 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 22 April 2020.
33. ↑ 33.0 33.1 33.2 33.3 33.4 RefSeq (April 2009). "FCRL2 Fc receptor like 2 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 20 April 2020.
34. ↑ 34.0 34.1 34.2 34.3 34.4 RefSeq (September 2010). "FCRL5 Fc receptor like 5 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 20 April 2020.
35. ↑ 35.0 35.1 RefSeq (April 2009). "FCRL4 Fc receptor like 4 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 20 April 2020.
36. ↑ 36.0 36.1 36.2 36.3 36.4 36.5 36.6 RefSeq (April 2009). "FCRL1 Fc receptor like 1 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 20 April 2020.
37. ↑ 37.0 37.1 37.2 37.3 RefSeq (February 2016). "FCRL3 Fc receptor like 3 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 16 April 2020.
38. ↑ 38.0 38.1 38.2 38.3 38.4 RefSeq (13 March 2020). "FCRL6 Fc receptor like 6 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 21 April 2020.
39. ↑ 39.00 39.01 39.02 39.03 39.04 39.05 39.06 39.07 39.08 39.09 39.10 39.11 39.12 RefSeq (August 2013). "OSCAR osteoclast associated Ig-like receptor [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 16 April 2020.
40. ↑ 40.0 40.1 40.2 40.3 40.4 40.5 RefSeq (December 2010). "ILDR1 immunoglobulin like domain containing receptor 1 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 16 April 2020.

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* Adenylate–uridylate rich element gene transcriptions
* Adr1p gene transcriptions
* Aft1p gene transcriptions
* AGC box gene transcriptions
* AGCE gene transcriptions
* Alpha-amylase conserved element gene transcriptions
* Amino acid response element gene transcriptions
* AARE-like
* Androgen response element gene transcriptions
* Angiotensinogen core promoter element gene transcriptions
* Antioxidant-electrophile responsive element gene transcriptions
* AP-2 (Roesler) elements
* ATA box gene transcriptions
* Auxin response factor gene transcriptions
* B box gene transcriptions
* Bioinformatics tool gene transcriptions
* Box gene transcriptions
* B recognition element upstream
* Bridge gene transcriptions
* CAAT box gene transcriptions
* CACA elements
* CadC binding domain gene transcriptions
* Calcineurin-responsive transcription factor gene transcriptions
* Calcium-response element gene transcriptions
* cAMP response element gene transcriptions
* C and D boxes gene transcriptions
* Carbohydrate response element gene transcriptions
* Carbon source-responsive element gene transcriptions
* Carcinoembryonic antigen gene family
* CARE gene transcriptions
* CArG box gene transcriptions
* CAT box gene transcriptions
* CAT-box-like elements
* Cat8p gene transcriptions
* Cbf1 regulatory factor gene transcriptions
* C box gene transcriptions
* CCCTC-binding factor gene transcriptions
* C-EBP box gene transcriptions
* Cell-cycle box gene transcriptions
* Cell cycle regulation gene transcriptions
* CENP-B box gene transcriptions
* CGCG box gene transcriptions
* Circadian control element gene transcriptions
* "Class C" (Leal) samplings
* Cold-responsive element gene transcriptions
* Complement copy gene transcriptions
* Complement-inverse copy gene transcriptions
* Consensus sequence gene transcriptions
* Constitutive decay elements
* Copper response element gene transcriptions
* Core promoter gene transcriptions
* Coupling element gene transcriptions
* CRE box gene transcriptions
* Cytokinin response regulator gene transcriptions
* Cytoplasmic polyadenylation element gene transcriptions
* DAF-16-associated element gene transcriptions
* DAF-16 binding element gene transcriptions
* D box gene transcriptions
* Defense and stress-responsive element gene transcriptions
* Degenerate nucleotide gene transcriptions
* Dispersed promoter gene transcriptions
* Distal promoter gene transcriptions
* DNA melting gene transcriptions
* DNA damage response element gene transcriptions
* DNA replication-related element gene transcriptions
* Downstream core element gene transcriptions
* Downstream promoter element gene transcriptions
* Downstream TFIIB recognition element gene transcriptions
* DREB box gene transcriptions
* E2 box gene transcriptions
* EIF4E basal element gene transcriptions
* EIN3 binding site gene transcriptions
* Enhancer activity copy gene transcriptions
* E box gene transcriptions
* Element gene transcriptions
* Endoplasmic reticulum stress response element gene transcriptions
* Endosperm expression gene transcriptions
* Enhancer box gene transcriptions
* Estrogen response element gene transcriptions
* Ethylene responsive element gene transcriptions
* Families of TATA box genes
* F box gene transcriptions
* Focused promoter gene transcriptions
* Forkhead box gene transcriptions
* Fur box gene transcriptions
* GAAC element gene transcriptions
* Gal4p gene transcriptions
* Γ-interferon activated sequence gene transcriptions
* GARE gene transcriptions
* GA responsive complex gene transcriptions
* GATA gene transcriptions
* G box gene transcriptions
* GC box gene transcriptions
* GCC box gene transcriptions
* Gcn4p gene transcriptions
* Gcr1p gene transcriptions
* Gene expressions
* General factor II D gene transcriptions
* General regulatory factors
* General transcription factor II A gene transcriptions
* General transcription factor II B gene transcriptions
* General transcription factor II D gene transcriptions
* General transcription factor II F gene transcriptions
* General transcription factor II H gene transcriptions
* General transcription factor gene transcriptions
* Gene transcriptions
* GGC triplet gene transcriptions
* Gibberellin responsive element gene transcriptions
* GLM box gene transcriptions
* Glucocorticoid response element gene transcriptions
* Grainy head gene transcriptions
* Grainy head transcription factor gene transcriptions
* Growth hormone response element gene transcriptions
* GT boxes
* Hac1p gene transcriptions
* Hair color gene expressions
* H and ACA box gene transcriptions
* H box gene transcriptions
* Heat-responsive element gene transcriptions
* Heat shock elements
* Hex sequence gene transcriptions
* HMG box gene transcriptions
* HNF gene transcriptions
* Homeobox gene transcriptions
* Hsf1p gene transcriptions
* HY box gene transcriptions
* Hybrid C, A boxes
* Hybrid C, G boxes
* Hybrid C, T boxes
* Hypoxia-inducible factor gene transcriptions
* Hypoxia response elements
* I box gene transcriptions
* Immunoglobulin like domain containing family
* Initiator element gene transcriptions
* Initiator-like element gene transcriptions
* Inositol/choline-responsive elements
* Interaction gene transcriptions
* Interferon regulatory factors
* Inverse copy gene transcriptions
* Jasmonic acid-responsive element gene transcriptions
* K-boxes
* Kozak sequence gene transcriptions
* Kruppel-associated box gene transcriptions
* Krüppel-like factor gene transcriptions
* L box gene transcriptions
* Leu3 gene transcriptions
* M35 box gene transcriptions
* MADS box gene transcriptions
* Maf recognition element gene transcriptions
* M box gene transcriptions
* M-CAT boxes
* Mcm1 regulatory factor gene transcriptions
* Met3 gene transcriptions
* Met31p box gene transcriptions
* Metal responsive element gene transcriptions
* Middle sporulation element gene transcriptions
* Mig1p gene transcriptions
* Model samplings
* Motif ten element gene transcriptions
* Msn2,4p gene transcriptions
* Musashi binding element gene transcriptions
* MYB recognition element gene transcriptions
* Myelocytomatosis transcription factor gene transcriptions
* Myocyte enhancer factor gene transcriptions
* N-boxes
* Nanos/Pumilio response element
* Ndt80p gene transcriptions
* Nuclear factor 1
* Nuclear factor 𝜿B
* Nuclear factor gene transcriptions
* Nuclear factor of activated T cell gene transcriptions (NFAT)
* Nuclear factor Y gene transcriptions
* Nutrient-sensing response element gene transcriptions
* Oaf1p gene transcriptions
* ORE1 binding site gene transcriptions
* p53 response element gene transcriptions
* P63 DNA-binding site gene transcriptions
* P box gene transcriptions
* Pdr1,3p gene transcriptions
* Peroxisome proliferator hormone response element gene transcriptions
* Phosphate starvation-response transcription factor gene transcriptions
* Pollen1 element gene transcriptions
* Polycomb response element gene transcriptions
* Preinitiation complex
* Preinitiation complex gene transcriptions
* Pribnow box gene transcriptions
* Prolamin box gene transcriptions
* Promoter gene transcriptions
* Proximal promoter gene transcriptions
* Promoter occurrence gene transcriptions
* Pyrimidine box gene transcriptions
* Q element gene transcriptions
* Rap1 regulatory factor gene transcriptions
* Reb1 general regulatory factor gene transcriptions
* Retinoblastoma control element gene transcriptions
* Retinoic acid response element gene transcriptions
* Rgt1p gene transcriptions
* Rlm1p gene transcriptions
* RNA polymerase II gene transcriptions
* RNA polymerase II holoenzyme complex
* Root specific element gene transcriptions
* ROR-response element gene transcriptions
* Rox1p gene transcriptions
* Rpn4p gene transcriptions
* R response element gene transcriptions
* SARE gene transcriptions
* Seed-specific element gene transcriptions
* Serum response element gene transcriptions
* Servenius sequence gene transcriptions
* Shoot specific element gene transcriptions
* Shue boxes
* Sip4p gene transcriptions
* Smp1p gene transcriptions
* Sp1 (Berberich) elements
* Sp1 gene transcriptions
* Spaceflight gene expressions
* Specificity protein gene transcriptions
* STAT gene transcriptions
* Ste12p gene transcriptions
* Sterol response element gene transcriptions
* Sucrose box gene transcriptions
* Synaptic Activity-Responsive Elements
* TACTAAC box gene transcriptions
* TAGteam gene transcriptions
* Tapetum box gene transcriptions
* TATA binding protein associated factor gene transcriptions
* TATA binding protein gene transcriptions
* TATA box actin/cytoskeleton/contractile family
* TATA box albumin family
* TATA box aldolase family
* TATA box alkaline phosphatase family
* TATA box annexin family
* TATA box cytochrome superfamily
* TATA box gene transcriptions
* TATA box heat shock family
* TATA box histone family
* TATA box human genes
* TATA box keratin family
* TATA box lipase family
* TATA box peptidase family
* TATA box platelet-derived growth factor family
* TATA box selenium-binding family
* TATA box serine protease family
* TATA box serpin superfamily
* TATA box transforming growth factor superfamily
* TATA box trefoil family
* TATA box tumor necrosis factor superfamily
* TATA box zinc metalloenzyme family
* TAT box gene transcriptions
* TATC box gene transcriptions
* Tbf1 regulatory factor gene transcriptions
* T box gene transcriptions
* TCCACCATA element gene transcriptions
* TC element gene transcriptions
* TCT gene transcriptions
* TEA consensus sequence gene transcriptions
* Tec1p gene transcriptions
* Telomeric repeat DNA-binding factor gene transcriptions
* Tetradecanoylphorbol-13-acetate response element gene transcriptions
* TGF-β control elements (TCEs)
* TGF-β inhibitory elements (TIEs)
* Thyroid hormone response element gene transcriptions
* Transcriptional regulation
* Transcription bubble gene transcriptions
* Transcription factor gene transcriptions
* Transcription factor 3 gene transcriptions
* Transcription factory gene transcriptions
* Transcription start site gene transcriptions
* Translational control sequence gene transcriptions
* Tryptophan residue
* U box gene transcriptions
* Unfolded protein response element gene transcriptions
* Upstream repressor site 1
* Upstream response element gene transcriptions
* Upstream stimulatory factor gene transcriptions
* UTR promoter gene transcriptions
* V and P box gene transcriptions
* V box gene transcriptions
* Vhr1p gene transcriptions
* Vitamin D response element gene transcriptions
* W box gene transcriptions
* X box gene transcriptions
* Xbp1p gene transcriptions
* X core promoter element gene transcriptions
* Xenobiotic response element gene transcriptions
* Xenobiotic responsive element gene transcriptions
* Yap1p,2p gene transcriptions
* Y box gene transcriptions
* YY1 gene transcriptions
* Zap1p gene transcriptions
* Z box gene transcriptions
* Zinc responsive element gene transcriptions

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