The composition of creatine is:: (A) Glycine, arginine, methionine, (B) Glycine and histidine, (C) Glycine, glutamate, aspartate, (D) Histidine and methionine
Answer is A. Ans. (a) Glycine, arginine, methionineRef: Vasudevan Biochemistry, 8th ed. P 269* Creatinine is formed in muscle from creatine phosphate by irreversible, nonenzymatic dehydration and loss of phosphate.* Glycine, arginine, and methionine all participate in creatine biosynthesis.* Synthesis of creatine is completed by methylation of guanidinoacetate by S-adenosylmethionine.