| Name | Speedy protein A |
| Description | Regulates the G1/S phase transition of the cell cycle by binding and activating CDK1, CDK2 and CDKN1B/KIP1. Can activate CDK2 without promoting CDK2 phosphorylation. Mediates cell survival during the DNA damage process through activation of CDK2. |
| UniProt ID | Q5MJ70 |
| Gene | SPDYA |