Cofactor involve in sulphur containing amino acid metabolism is?: (A) Folic acid, (B) Biotin, (C) Vitamin B 1, (D) Vitamin B 12
Answer is D. ANSWER: (D) Vitamin B 12REF: Lehninger Principles of Biochemistry 4tR edition page 674Sulphur conatining amino acids are methionine, cystine and cysteineVitamin B 12 is a co-factor for methionine synthetase; it helps to convert homocysteine to methionine