Cyclin A
Encyclopedia
Cyclin A is a member of the cyclin
Cyclin
Cyclins are a family of proteins that control the progression of cells through the cell cycle by activating cyclin-dependent kinase enzymes.- Function :...

 family.

Cyclin A binds to S phase Cdk2 and is required for the cell to progress through the S phase
S phase
S-phase is the part of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase. Precise and accurate DNA replication is necessary to prevent genetic abnormalities which often lead to cell death or disease. Due to the importance, the regulatory pathways that govern this...

. Cyclin A/ Cdk2 is inhibited by the complex p21CIP.

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