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【多选题】
下列哪一个反应不需要1′-焦磷酸-5′-磷酸核糖(PRPP)()
A.
5′-磷酸1′-氨基核糖的合成
B.
由次黄嘌呤转变为次黄苷酸
C.
嘧啶合成中乳清酸的生成
D.
由腺嘌呤转变为腺苷酸
E.
由鸟嘌呤转变为鸟苷酸
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