Baculoviral IAP repeat-containing protein 5 (BIRC5)

Multitasking protein that has dual roles in promoting cell proliferation and preventing apoptosis (PubMed:9859993, PubMed:21364656, PubMed:20627126). Part of a chromosome passing protein complex (CPC) that is essential for chromosome alignment and segregation during mitosis and cytokinesis (PubMed:16322459).

Acts as an important regulator of the localization of this complex; directs CPC movement to different locations from the inner centromere during prometaphase to midbody during cytokinesis and participates in the organization of the center spindle by associating with polymerized microtubules (PubMed:20826784). Involved in the recruitment of CPC to centromeres during early mitosis via association with histone H3 phosphorylated in'Thr-3' (H3pT3) during mitosis (PubMed:20929775).