Phosphorylation or dephosphorylation of proteins is a common means of

Question

Quizplus · Accepted Answer

Phosphorylation or dephosphorylation of proteins involves the addition or removal of a phosphate group, which is a covalent modification of the protein. This modification can activate or inactivate kinases or other enzymes, leading to changes in cell signaling pathways. Therefore, the correct choice is D, which reflects both covalent modulation of the proteins and the activation or inactivation of kinases. Allosteric modulation of the proteins is another mechanism that can regulate protein function, but it is not directly related to phosphorylation or dephosphorylation. Hence, choice C is incorrect. Choice E is incorrect because it includes an unnecessary choice.

Phosphorylation or Dephosphorylation of Proteins Is a Common Means of