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tyrosine kinase


Definition: an enzyme that phosphorylates tyrosyl residues on certain proteins; many are products of viral oncogenes; a number of receptors (receptors for epidermal growth factor, insulin, etc.) have this enzymatic activity; a misnomer, in that the physiologic substrate is not tyrosine but tyrosyl residues in a protein.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.