BIO NMDCAT BIOLOGICAL MOLECULES
nmdcat.online June 27, 2026

The covalent modification of an enzyme’s activity by the addition of a phosphate group is catalyzed by enzymes known as

A. Phosphatases
B. Kinases
C. Isomerases
D. Hydrolases

📝 Explanation

Kinases are a class of transferase enzymes that catalyze the transfer of a γ-phosphate group from a high-energy donor molecule like ATP to a specific substrate. Protein kinases phosphorylate specific serine, threonine, or tyrosine residues on target enzymes, regulating their activity. Phosphatases reverse this.

📖 Additional Information

  • Phosphatases
  • Kinases
  • Isomerases
  • Hydrolases

Kinases are a class of transferase enzymes that catalyze the transfer of a γ-phosphate group from a high-energy donor molecule like ATP to a specific substrate. Protein kinases phosphorylate specific serine, threonine, or tyrosine residues on target enzymes, regulating their activity. Phosphatases reverse this.

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