Most of the significant changes in activities and functions that accompany passage through a cell cycle checkpoint are regulated by the:

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The significant changes in activities and functions that accompany passage through a cell cycle checkpoint are regulated by the activation of kinase enzymes. Kinases play an essential role in signal transduction pathways that control the progression of the cell cycle. They activate or deactivate specific target proteins by phosphorylating them, leading to changes in protein conformation or activity. Dysfunction of kinases can result in abnormalities in cell division and cancer.

Most of the Significant Changes in Activities and Functions That