cdc2 inhibitory kinase, Membrane associated tyrosine and threonine specic cdc2 inhibitory kinase, Membrane-associated tyrosine- and threonine-specic cdc2-inhibitory kinase, MYT1, Myt1 kinase, PKMYT 1, Pkmyt1, PMYT1_HUMAN, Protein kinase membrane associated tyrosine/threonine 1, Protein kinase Myt1, DKFZp547K1610, FLJ20093.
PKMYT1 is a member of the serine/threonine protein kinase family. It preferentially phosphorylates and inactivates cell division cycle 2 protein (cdc2), and thus acts as a negative regulator of entry into mitosis (G2 to M transition). It mediates phosphorylation of cdc2 predominantly on Thr-14 and is also involved in Golgi fragmentation. It may be involved in phosphorylation of cdc2 on Tyr-15 to a lesser degree, however tyrosine kinase activity is unclear and may be indirect. It may be a downstream target of Notch signaling pathway during eye development. PKMYT1 is negatively regulated by hyperphosphorylation during mitosis.
