Inosine monophosphate synthase

Bifunctional purine biosynthesis protein PURH is a is_associated_with::protein that in humans is encoded by the ATIC is_associated_with::gene.

ATIC encodes an enzyme which generates is_associated_with::inosine monophosphate from is_associated_with::aminoimidazole carboxamide ribonucleotide.

It has two functions:


 * - 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase
 * - IMP cyclohydrolase