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Protein kinase ERK is activated by phosphorylation of ____________

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in Biochemistry by (89.1k points)
Protein kinase ERK is activated by phosphorylation of ____________

(a) Only Thr

(b) Only Tyr

(c) Both Thr and Tyr

(d) Only Ser

This question was posed to me in unit test.

This key question is from Receptor Enzymes topic in chapter Biosignalling of Biochemistry

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Best answer
Right choice is (c) Both Thr and Tyr

The best explanation: Both Thr and Tyr are phosphorylated to activate the protein kinase ERK.

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