Reaction catalyzed by phosphoribosylglycinamide formyltransferase 1 (2.1.2.2)

		+			=			+
	10-formyl-5,8-dideazafolate	+		carbocyclic beta-glycinamide ribonucleotide	=		5,8-dideazafolate	+		N-formyl carbocyclic beta-glycinamide ribonucleotide