serine/threonine kinase

Serine/threonine kinases are enzymes that help regulate cellular functions by attaching phosphate groups to specific amino acids called serine or threonine residues on proteins. This process, known as phosphorylation, acts like a molecular switch, turning proteins on or off, which controls processes such as cell growth, division, and response to signals. These kinases are vital for maintaining proper cell function and communication, and their activity is tightly controlled to prevent diseases like cancer. In essence, serine/threonine kinases are essential regulators that help cells respond appropriately to their environment.