Coenzyme not required in formation of glutamate-: (A) Thiamine pyrophosphate, (B) Pyridoxial phosphate, (C) Niacin, (D) None of the above
Answer is A. NAD+ is derived from nicotinic acid, a member of the vitamin B complex, used in the synthesis of GABA. During transamination reaction glutamate is formed. Pyridoxal Phosphate acts as a coenzyme. REF: Lippincott book of biochemistry 6th ed.