##gff-version 3 Q3IT10 UniProtKB Chain 1 239 . . . ID=PRO_0000229100;Note=1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase Q3IT10 UniProtKB Active site 12 12 . . . Note=Proton acceptor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01014 Q3IT10 UniProtKB Active site 132 132 . . . Note=Proton donor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01014