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

Examples of protein kinase in a Sentence

Recent Examples on the Web

The team at Stamford has previously determined the role of homeodomain-interacting protein kinase 4 (HIPK4) in the later stages of spermatogenesis, and it is thought that a drug targeting this kinase could be used as a contraceptive. Hannah Flynn, Ars Technica, "More than half a century later, where’s the male pill?," 28 Feb. 2018 Hall was honored for his work in discovering how a large family of nutrient-dependent protein kinases, called the TOR proteins, play a central role in controlling the cell growth. Beth Mole, Ars Technica, "Message to GOP? Planned Parenthood, STD vaccine win top medical award," 6 Sep. 2017

First Known Use of protein kinase

1962, in the meaning defined above

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More Definitions for protein kinase

protein kinase

noun

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)