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Activation of pro-carboxypeptidase into carboxypeptidase is brought about by:
1) Enterokinase
2) Endopeptidase
3) Exopeptidase
4) Trypsin
The correct answer is Trypsin
The activation of pro-carboxypeptidase into carboxypeptidase is brought about by the enzyme called Trypsin.
Pro-carboxypeptidase is the inactive form of carboxypeptidase that needs to be activated to perform its function. Trypsin is an enzyme that is responsible for the activation of pro-carboxypeptidase into carboxypeptidase. Trypsin cleaves the peptide bond located at the C-terminus of the Arginine or Lysine amino acids in the pro-carboxypeptidase molecule, thus removing the propeptide and activating the enzyme.
Enterokinase, endopeptidase, and exopeptidase are not involved in the activation of pro-carboxypeptidase into carboxypeptidase. Enterokinase is an enzyme that activates trypsinogen into trypsin. Endopeptidase is an enzyme that breaks peptide bonds within the protein molecule, whereas exopeptidase is an enzyme that cleaves peptide bonds from the end of the protein molecule.