The page provides a comprehensive guide to understanding the molecular mechanisms controlling the cell cycle, focusing on cyclin-dependent kinases (CDKs), cyclins, and their regulation. It explains th...The page provides a comprehensive guide to understanding the molecular mechanisms controlling the cell cycle, focusing on cyclin-dependent kinases (CDKs), cyclins, and their regulation. It explains the roles and mechanisms of these proteins in various cell cycle phases (G1, S, G2, M), highlights the importance of cyclin levels and CDK activity, and discusses the impacts of dysregulated kinase activity on diseases such as cancer.