Kinase

A kinase is an enzyme that transfers a phosphate group from a molecule like ATP to specific proteins. This process, called phosphorylation, acts as a switch that can activate or deactivate the target proteins, controlling various cell functions like growth, division, and signaling. Kinases are essential for cellular communication and regulation, ensuring that cells respond appropriately to their environment. They are involved in numerous processes and pathways, and their dysfunction can lead to diseases such as cancer. In short, kinases are key regulators that help cells maintain proper function and response.