Speedy protein A, Rapid inducer of G2/M progression in oocytes A, RINGO A, hSpy/Ringo A, Speedy-1, Spy1, SPDYA (HGNC:30613)
SPDYA (speedy homolog A (Drosophila)) regulates the G1/S phase transition of the cell cycle by binding and activating CDC2, CDK2 and CDKN1B/KIP1. SPDYA can activate CDK2 without promoting CDK2 phosphorylation. SPDYA mediates cell survival during the DNA damage process through activation of CDK2.