Cyclin A

Cyclin A is a protein that plays a critical role in cell division, helping cells replicate accurately. It acts as a molecular switch, turning on other proteins needed for DNA copying and cell division at precise times during the process. By controlling these activities, Cyclin A ensures cells divide properly, maintaining healthy growth. It is especially important during the S phase (when DNA is duplicated) and the later stages of cell division, coordinating the progression through different cell cycle phases. Proper regulation of Cyclin A is essential for normal development and tissue maintenance.