In analyzing the intermediates formed during the conversion of IMP to GMP and AMP, which molecule would one expect to find in the conversion to GMP but NOT in the conversion to AMP? A) xanthosine-5 ^' -monophosphate B) adenylosuccinate C) 5-phosphoriboxylamine D) 5-aminoimidazole ribonucleotide

Question

Quizplus · Accepted Answer

Xanthosine-5'-monophosphate (XMP) is an intermediate in the conversion of IMP to GMP, but not in the conversion to AMP. XMP is further converted to GMP by the addition of a phosphate group, while the conversion to AMP involves the removal of a phosphate group. Therefore, XMP would only be present in the pathway toward GMP.

In Analyzing the Intermediates Formed During the Conversion of IMP