Definitions for "Cyclin"
Keywords:  kinase, degraded, klin, cdk, protein
Any of several related proteins whose concentrations rise and fall during the course of the eukaryotic cell cycle. Cyclins form complexes with cyclin-dependent kinases, thereby activating and determining the substrate specificity of these enzymes.
Protein that periodically rises and falls in concentration in step with the eucaryotic cell cycle. Cyclins activate crucial protein kinases (called cyclin-dependent protein kinases) and thereby help control progression from one stage of the cell cycle to the next.
A regulatory protein whose abundance varies during the cell cycle and which regulates biochemical events in a cell cycle-specific manner.