Regulates the G1/S phase transition of the cell cycle by binding and activating CDK1 and CDK2 (PubMed:15611625). Contributes to CDK2 activation without promoting CDK2 phosphorylation, by inducing a conformation change of the CDK2 T-loop that obstructs the substrate-binding cleft prior to kinase activation. Interferes with CDKN1B-mediated inhibition of CDK2. Mediates cell survival during the DNA damage process through activation of CDK2 (By similarity).

Belongs to the Speedy/Ringo family.

310 amino acids

MRHNQMYCETPPTVTIHVKSGSNRSHQTRKPISLKRPILKDSWEASENNAQNNKSKRPRGPCLIIQRQEMTAFFKLFDDDLIQDFLWMDCCCKIADKYLLAMTFVYFKRAKFTINEHTRINFFIALYLANTVEEDEEEAKYEIFPWALGKNWRKLFPNFLKLRDQLWDRIDYRAIVSRRCCEEVMAIAPTHYIWQRERSVHHSGAVRNYNRDEVHLPRGPSATPVDCSLCGKKGRYVRLGLSSSSSSSSDTGELMEKDSQELHSAFSVDTAGDPPHTYSQVANDHQSNKENETNFVKKNKSVEWFAESEE

36.1 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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