N-(5'-phospho-D-1'-ribulosylformimino)-5-amino-1-(5''-phosphoribosyl)-4-imidazolecarboxamide N-(5'phospho-D-1'-ribulosylformimino)-5-amino-1-(5-phosphoribosyl)-4-imidazolecarboxamide PHOSPHORIBULOSYL-FORMIMINO-AICAR-P PRFAR phosphoribulosyl-formimino-5-aminoimidazole-4-carboxamide ribonucleotide phosphate phosphoribulosyl-formimino-5-aminoimidazole-4-carboxamide ribotide phosphate phosphoribulosylformimino-AICAR-P phosphoribulosylformiminoAICAR-phosphate