| Primary Identifier | IPR042703 | Type | Domain |
| Short Name | PLK3_STKc |
| description | PLK3 (polo-like kinase 3) is a serine/threonine-protein kinase involved in cell cycle regulation, response to stress and Golgi disassembly [, , ]. It regulates angiogenesis and responses to DNA damage []. Activated PLK3 mediates Chk2 phosphorylation by ATM and the resulting checkpoint activation []. PLK3 phosphorylates DNA polymerase delta and may be involved in DNA repair. It also inhibits Cdc25c, thereby regulating the onset of mitosis [, ].STKs (serine/threonine-protein kinases) catalyse the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. PLKs (polo-like kinases) play important roles in cell cycle progression and in DNA damage responses. They regulate mitotic entry, mitotic exit, and cytokinesis. In general PLKs contain an N-terminal catalytic kinase domain and a C-terminal regulatory polo box domain (PBD), which is comprised by two bipartite polo-box motifs (or polo boxes) and is involved in protein interactions. There are five mammalian PLKs (PLK1-5) from distinct genes [, , ]. |
