protein kinase

2 ENTRIES FOUND:

protein kinase

noun

Definition of PROTEIN KINASE

:  any of a class of enzymes that catalyze the transfer of a phosphate group from ATP to one or more amino acids in the side chain of a protein resulting in a conformational change affecting protein function

First Known Use of PROTEIN KINASE

1966

protein kinase

noun    (Medical Dictionary)

Medical Definition of PROTEIN KINASE

: any of a class of allosteric enzymes that possess a catalytic subunit which transfers a phosphate from ATP to one or more amino acid residues (as serine, threonine, or tyrosine) in a protein's side chain resulting in a conformational change affecting protein function, that play a role in regulating intracellular processes, and that include many which are activated by the binding of a second messenger (as cyclic AMP)

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