Protein kinases are involved in the _______ of other proteins.

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Quizplus · Accepted Answer

Protein kinases are enzymes that transfer a phosphate group from ATP to target proteins, usually on serine, threonine or tyrosine residues. This process is called phosphorylation, and it can lead to a conformational change in the target protein, activate or deactivate an enzymatic reaction or signal other proteins to interact with the modified protein. Phosphorylation is a reversible modification, and it is involved in almost all cellular processes, including cell proliferation, differentiation, metabolism, and signal transduction.

Protein Kinases Are Involved in the _______ of Other Proteins