Reaction catalyzed by phosphoribosylaminoimidazolecarboxamide formyltransferase (2.1.2.3)
+
=
+
N10-formyltetrahydropteroyltriglutamate
+
5'-phosphoribosyl-5-formamino-4-imidazole carboxamide ribonucleotide
=
tetrahydorpteroylglutamate
+
5'-phosphoribosyl-5-formamido-4-imidazole carboxamide ribonucleotide