The Synthesis of 5-Phosphoribosylamine from PRPP Is

question 48

Multiple Choice

The synthesis of 5-phosphoribosylamine from PRPP is
(I) inhibited allosterically by ATP and GTP.
(II) activated by PRPP via feed forward activation.
(III) controlled by cAMP dependent phosphorylation.

• A)I,II,III,
• B)I,II
• C)II,III
• D)II only
• E)III only

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