Carboxypeptidases contains*2 points(a) Zn(II) and hydrolysis CO2(b) Zn(II) and hydrolysis peptide bonds(c) Mg(II) and hydrolysis CO2(d) Mg(II) and hydrolysis peptide bonds
Question
Carboxypeptidases contains*2 points(a) Zn(II) and hydrolysis CO2(b) Zn(II) and hydrolysis peptide bonds(c) Mg(II) and hydrolysis CO2(d) Mg(II) and hydrolysis peptide bonds
Solution
The correct answer is (b) Zn(II) and hydrolysis peptide bonds.
Carboxypeptidases are enzymes that catalyze the hydrolysis (the breaking of a bond in a molecule using water) of the peptide bonds that link amino acids together in a protein. They are most effective in removing the C-terminal amino acid from the peptide chain.
These enzymes are metalloproteases, meaning they require a metal ion for their activity. In the case of carboxypeptidases, the required metal ion is Zn(II), or zinc.
Therefore, the statement that carboxypeptidases contain Zn(II) and hydrolyze peptide bonds is correct.
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