What is the function of a kinase?

The function of a kinase is to add phosphates to other molecules, which can either activate or deactivate their function. This process, known as phosphorylation, is a critical mechanism in cellular signaling pathways. By modifying target proteins through the addition of phosphate groups, kinases play a significant role in regulating various cellular processes, including metabolism, cell division, and response to extracellular signals.

This phosphorylation can lead to conformational changes in the target proteins, altering their activity, interactions, and roles in signaling pathways. The ability of kinases to modify other molecules provides a vital control point in cellular processes and is an essential aspect of cellular regulation and communication.