48.以Inosine-5'-phosphate(IMP)測5'-Nucleotidase(NTP)之活性時,若搭配Purine-nucleoside phosphorylase及 Xanthine oxidase,則會有下列何種中間產物?
(A)NH3
(B)Phosphate
(C)H2O2
(D)Guanosine
答案:登入後查看
統計: A(358), B(375), C(1322), D(340), E(0) #2040285
統計: A(358), B(375), C(1322), D(340), E(0) #2040285
詳解 (共 2 筆)
#6424647
測量步驟:
1. 5'NP催化:IMP →Inosine+Phosphate
2. PNP催化:Inosine+Phosphate →Hypoxanthine+Ribose-1-phosphate
3. Xanthine oxidase催化:Hypoxanthine →Xanthine →Uric acid+H2O2
其實是H2O2終產物,中間產物應該是inosine跟phosphate才對
3
0