##gff-version 3 P62356 UniProtKB Chain 1 235 . . . ID=PRO_0000142069;Note=1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase P62356 UniProtKB Active site 8 8 . . . Note=Proton acceptor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01014 P62356 UniProtKB Active site 128 128 . . . Note=Proton donor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01014