The Protein-tyrosine kinases phosphorylate the ______________ residues.(a) adenine(b) cytosine(c) tyrosine(d) chymosinThe question was posed to me in an online interview.Origin of the question is Cell Signaling and Signal Transduction in section Cell Signaling and Signal Transduction of Cell Biology

The Protein-tyrosine kinases phosphorylate the ______________ residues

1.	The Protein-tyrosine kinases phosphorylate the ______________ residues.(a) adenine(b) cytosine(c) tyrosine(d) chymosinThe question was posed to me in an online interview.Origin of the question is Cell Signaling and Signal Transduction in section Cell Signaling and Signal Transduction of Cell Biology
Answer» CORRECT choice is (c) tyrosine To EXPLAIN: The protein-tyrosine kinases are enzymes that add phosphate groups to specific tyrosine residues on the protein substrates. Protein-tyrosine PHOSPHORYLATION is a mechanism of SIGNAL TRANSDUCTION.

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