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protein
active in regulating the cell cycle, typically synthesized and degraded
during the cell cycle to regulate the activity of a cyclin-dependent
kinase. Cyclin B is the large protein subunit of mitosis promoting
factor (MPF); cyclin B is synthesized and degraded during the cell
cycle to regulate MPF activity. Cyclin B plus cyclin dependent kinase
1 (cdk1, aka cdc2, aka p34 kinase) together form an active MPF protein.
There are many other cyclins that regulate the cell cycle. |
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