問題詳情

14. What is the coenzyme responsible for the addition of two single carbon in purine biosynthesis?
(A) biotin.
(B) SAM.
(C)THF.
(D) TPP.
(E) none of the above.

參考答案

答案：C
難度：計算中-1
書單：沒有書單，新增

用户評論

【加油(邀請:154179)】評論

嘌呤(purine):N1: aspartateC2 & C8: formate group (都是一種THF, tetrahydrofolate四氫葉酸)N3 & N9: glutamineC4 & C5 & N7: glycineC6: CO2 嘧啶(pyrimidine):N1、C4、C5、C6: aspartateC2: CO2N3: glutamine