Methionine amino peptidase will remove the N terminal formyl methionine if the N+1 amino acid is_________(a) Glycine(b) Phenyl alanine(c) Methionine(d) TyrosineThe question was asked in my homework.My doubt is from Ribosome topic in division Gene Expression : Translation of Cytogenetics

Methionine amino peptidase will remove the N terminal formyl methionin

1.	Methionine amino peptidase will remove the N terminal formyl methionine if the N+1 amino acid is_________(a) Glycine(b) Phenyl alanine(c) Methionine(d) TyrosineThe question was asked in my homework.My doubt is from Ribosome topic in division Gene Expression : Translation of Cytogenetics
Answer» The correct answer is (a) Glycine Best explanation: The N terminal amino acid can be REMOVED only if the N+1 amino acid is small, i.e. Gly, ALA, SER, THR, Pro, Val or Cys. Here all other than Glycine are larger amino acid. So, only glycine in the N+1 position will SUFFICE the result.

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