補充: 5-Methyl-THF (methionine) is the substrate for S-adenosylmethionine (SAM) synthetase.
(tetrahydrobiopterin) BH4是, hydroxylases (加OH相關) cofactor, 跟碳的轉移比較無關
71. Which compound is not one-carbon car..-阿摩線上測驗