Also known as Cep215, CDK5RAP2 is involved in a variety of cellular processes. It serves as a potential regulator of CDK5 activity through its interaction with CDK5R1. It acts as a negative regulator of centriole disengagement, which maintains centriole engagement and cohesion. It is involved in the regulation of mitotic spindle orientation. Additionally, this protein mediates spindle checkpoint activation by serving as a transcriptional regulator of the MAD2 and BUBR1 promoter. In conjuction with MAPRE1, CDK5RAP2 promotes microtubule polymerization, bundle formation, and growth at the plus ends. It also plays a role in DNA damage-induced G2 cell cycle checkpoint. CDK5RAP2 is known to be mutated in primary microcephaly, a neuodevelopmental disorder that is characterized by a decrease in brain size.

Other Homologies: Rat (83% sequence homology) and Mouse (82% sequence homology).

MBP-tagged recombinant protein corresponding to human CDK5RAP2.

Immunocytochemistry Analysis: A representative lot from an independent laboratory detected CDK5RAP2 in RPE1 cells. (Barr, A.R., et al. (2010). J Cell Biol. 189(1):23-39.)

Use Anti-CDK5RAP2 Antibody (rabbit polyclonal antibody) validated in WB, ICC to detect CDK5RAP2 also known as CDK5 regulatory subunit-associated protein 2, CDK5 activator-binding protein C48, Centrosome-associated protein 215.

Evaluated by Western Blot in 10 µg of HeLa cell lysate.

Western Blot Analysis: A 1:2,500 dilution of this antibody dectected CDK5RAP2 in 10µg of HeLa cell lysate.

~220 kDa observed. Uniprot.org states four isoforms produced by alternative splicing, which may be observed at a molecular weight of ~216 kDa, ~211 kDa, ~210 kDa, and ~206 kDa in some cell lysates.