試題詳解

16. One-carbon transfer reaction is important in the metabolism of nitrogen-containing biomolecules. Which of the following reactions provides the major source of the required one-carbon groups?
(A) serine → 5,10-methylene-THF
(B) histidine → 5-formimino-THF
(C) formate → 10-formyl-THF
(D) glycine → 10-methyl-THF