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aurkb-a

Gene
aurkb-a
Protein
Aurora kinase B-A
Organism
Xenopus laevis
Length
361 amino acids
Function
Serine/threonine-protein kinase component of the chromosomal passenger complex (CPC), a complex that acts as a key regulator of mitosis. The CPC complex has essential functions at the centromere in ensuring correct chromosome alignment and segregation and is required for chromatin-induced microtubule stabilization and spindle assembly. Involved in the bipolar attachment of spindle microtubules to kinetochores and is a key regulator for the onset of cytokinesis during mitosis. Required for central/midzone spindle assembly and cleavage furrow formation. Key component of the cytokinesis checkpoint, a process required to delay abscission to prevent both premature resolution of intercellular chromosome bridges and accumulation of DNA damage. Phosphorylates 'Ser-10' of histone H3 during mitosis.
Similarity
Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. Aurora subfamily.
Mass
41.735 kDa
Sequence
MSYKENLNPSSYTSKFTTPSSATAAQRVLRKEPYVSTFTTPSDNLLAQRTQLSRITPSASSSVPGRVAVSTEMPSQNTALAEMPKRKFTIDDFDIGRPLGKGKFGNVYLAREKQNKFIMALKVLFKSQLEKEGVEHQLRREIEIQSHLRHPNILRMYNYFHDRKRIYLMLEFAPRGELYKELQKHGRFDEQRSATFMEELADALHYCHERKVIHRDIKPENLLMGYKGELKIADFGWSVHAPSLRRRTMCGTLDYLPPEMIEGKTHDEKVDLWCAGVLCYEFLVGMPPFDSPSHTETHRRIVNVDLKFPPFLSDGSKDLISKLLRYHPPQRLPLKGVMEHPWVKANSRRVLPPVYQSTQSK