Which metal acts as a cofactor for Methionyl aminopeptidase?(a) Mg^2+(b) Zn^2+(c) Co^2+(d) Mn^2+The question was asked in an online quiz.I'm obligated to ask this question of Ribosome in section Gene Expression : Translation of Cytogenetics

Which metal acts as a cofactor for Methionyl aminopeptidase?(a) Mg^2+(

1.	Which metal acts as a cofactor for Methionyl aminopeptidase?(a) Mg^2+(b) Zn^2+(c) Co^2+(d) Mn^2+The question was asked in an online quiz.I'm obligated to ask this question of Ribosome in section Gene Expression : Translation of Cytogenetics
Answer» Correct choice is (c) Co^2+ For explanation: The Methionyl aminopeptidase which removes the terminal METHIONINE residue in the peptide chain uses Co^2+ as a cofactor. While on the other hand many polymerase USE Mg^2+and DNA binding DOMAIN uses Zn^2+.

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