. Explain why addition of a phosphate group to one of these amino acids can have a significant effect on the activity of a protein.
Added by Jeffrey L.
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Step 1: Identify the amino acids that can be phosphorylated, typically serine, threonine, and tyrosine, which have hydroxyl (-OH) groups in their side chains. Show more…
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The addition of a phosphate group to a substrate protein: (select any or all answers that apply) A. will oftentimes affect the activity of that protein. B. is catalyzed by a phosphatase. C. is catalyzed by a ubiquitin ligase. D. can act as a kind of "molecular switch". E. can sometimes serve as a "docking site" recruiting other proteins or molecules to the phosphorylated substrate protein.
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