KRP (biochemistry)

KRP stands for kinesin related proteins. bimC is a subfamily of KRPs and its function is to separate the duplicated centrosomes during mitosis.

## Role in mitotic repair

Kinesin-13 MCAK (Mitotic Centromere-Associated Kinesin) is a KRP that is involved in resolving errors during mitosis involving kinetochore-microtubules. This process is associated with Aurora B Protein Kinase. When Aurora B's function is disrupted, MCAK ability to locate centromeres, which play a critical role in separation of chromosomes during mitosis, was suppressed.[1] There are other environments in which MCAK's function is impaired, absent impact on its associated kinase. For example, alpha-tubulin detyrosination has been demonstrated to impact MCAK's mitotic repair capabilities, suggesting a potential cause of chromosomal instability. [2]

## References

1. ↑ "Aurora B regulates MCAK at the mitotic centromere". Developmental Cell 6 (2): 253–68. February 2004. doi:10.1016/s1534-5807(04)00025-5. PMID 14960279.
2. ↑ "α-Tubulin detyrosination impairs mitotic error correction by suppressing MCAK centromeric activity". The Journal of Cell Biology 219 (4). April 2020. doi:10.1083/jcb.201910064. PMID 32328631.

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