Anaphase-Promoting Complex Subunit 5 (APC5) Antibody – Rabbit Polyclonal

This gene encodes a tetratricopeptide repeat-containing component of the anaphase promoting complex/cyclosome (APC/C), a large E3 ubiquitin ligase that controls cell cycle progression by targeting a number of cell cycle regulators such as B-type cyclins for 26S proteasome-mediated degradation through ubiquitination. The encoded protein is required for the proper ubiquitination function of APC/C and for the interaction of APC/C with transcription coactivators. It also interacts with polyA binding protein and represses internal ribosome entry site-mediated translation. Multiple transcript variants encoding different isoforms have been found for this gene. These differences cause translation initiation at a downstream AUG and result in a shorter protein (isoform b), compared to isoform a. [provided by RefSeq, Nov 2008]

APC5: Component of the anaphase promoting complex/cyclosome (APC/C), a cell cycle-regulated E3 ubiquitin ligase that controls progression through mitosis and the G1 phase of the cell cycle. The APC/C complex acts by mediating ubiquitination and subsequent degradation of target proteins: it mainly mediates the formation of 'Lys-11'-linked polyubiquitin chains and, to a lower extent, the formation of 'Lys-48'- and 'Lys-63'-linked polyubiquitin chains. Belongs to the APC5 family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Ubiquitin conjugating system; Cell cycle regulation

Chromosomal Location of Human Ortholog: 12q24.31

Cellular Component: anaphase-promoting complex; cytosol; nucleoplasm; nucleus

Molecular Function: protein phosphatase binding

Biological Process: anaphase-promoting complex-dependent proteasomal ubiquitin-dependent protein catabolic process; cell division; mitosis; mitotic cell cycle; mitotic cell cycle spindle assembly checkpoint; negative regulation of ubiquitin-protein ligase activity during mitotic cell cycle; positive regulation of ubiquitin-protein ligase activity during mitotic cell cycle; regulation of ubiquitin-protein ligase activity during mitotic cell cycle