Question
Give the structure of a tyrosyl residue of an enzyme modified by a protein kinase.
Step 1
Tyrosine is an amino acid with the chemical formula C9H11NO3. It contains a benzene ring (aromatic ring) with a hydroxyl group (-OH) at the 4th position and an amino group (-NH2) at the alpha carbon. Show more…
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Write a mechanism (in detail) for the phosphorylation of a serine residue by ATP catalyzed by a protein kinase. What groups might you expect to find in the enzyme's active site?
Protein kinases. Write a mechanism (in detail) for phosphorylation of a serine residue by ATP catalyzed by protein kinase. What groups might you expect to find in the enzyme's active site?
ADP released from the active site of the kinase. ATP binds to the active site of the kinase. The Îł-phosphate from ATP is transferred to the hydroxyl group of serine residue within the substrate. The substrate binds to the active site of the kinase. The phosphorylated substrate is released from the active site of the kinase.
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