Which of these covalently modifies proteins by phosphorylation?
A)enzymes called protein phosphatases
B)other proteins called allosteric proteins
C)any ligand which can bind to specific binding sites
D)enzymes called protein kinases
E)metal ions,such as Fe2+

Question

Quizplus · Accepted Answer

Enzymes called protein kinases covalently modify proteins by phosphorylation by adding phosphate groups to specific amino acid residues on a target protein. This modification can change the conformation, activity, or subcellular localization of the protein.

Which of These Covalently Modifies Proteins by Phosphorylation