Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
Cyclins are proteins that regulate the progression of the cell cycle by binding to cyclin-dependent kinases (CDKs). They control when certain checkpoints occur during different phases of the cell cycle.
Related terms
CDKs (Cyclin-dependent kinases): These are enzymes that become activated when bound to specific cyclins. Together with cyclins, they regulate key events in the cell cycle.