MyBioSource.com's PRC1 Antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: ELISA, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, and Western Blot. The PRC1 Antibody was generated using PRC1 as the antigen and it reacts with Human, Mouse, and Rat.
Description
Function: Key regulator of cytokinesis that cross-links antiparrallel microtubules at an average distance of 35 nM. Essential for controlling the spatiotemporal formation of the midzone and successful cytokinesis. Required for KIF14 localization to the central spindle and midbody. Required to recruit PLK1 to the spindle. Stimulates PLK1 phosphorylation of RACGAP1 to allow recruitment of ECT2 to the central spindle. Acts as an oncogene for promoting bladder cancer cells proliferation, apoptosis inhibition and carcinogenic progression (PubMed:17409436).
Subunit Structure: Homodimer (PubMed:20691902). Interacts with the C-terminal Rho-GAP domain and the basic region of RACGAP1 (PubMed:14744859). The interaction with RACGAP1 inhibits its GAP activity towards CDC42 in vitro, which may be required for maintaining normal spindle morphology (PubMed:14744859). Interacts separately via its N-terminal region with the C-terminus of CENPE, KIF4A and KIF23 during late mitosis (PubMed:15297875, PubMed:16431929). Interacts with KIF14 and KIF20A (PubMed:15625105, PubMed:16431929). Interacts with PLK1 (PubMed:19468300). Interacts with KIF20B (PubMed:17409436).
Post-translational Modifications: Phosphorylation by CDK1 in early mitosis holds PRC1 in an inactive monomeric state, during the metaphase to anaphase transition, PRC1 is dephosphorylated, promoting interaction with KIF4A, which then translocates PRC1 along mitotic spindles to the plus ends of antiparallel interdigitating microtubules. Dephosphorylation also promotes MT-bundling activity by allowing dimerization. Phosphorylation by CDK1 prevents PLK1-binding: upon degradation of CDK1 at anaphase and dephosphorylation, it is then phosphorylated by PLK1, leading to cytokinesis.
Similarity: Microtubule binding occurs via a basic patch in the central spectrin-like domain and requires also the unstructured C-terminal domain. Belongs to the MAP65/ASE1 family