##gff-version 3 Q9ZHE2 UniProtKB Chain 1 244 . . . ID=PRO_0000141988;Note=1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase Q9ZHE2 UniProtKB Active site 7 7 . . . Note=Proton acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250 Q9ZHE2 UniProtKB Active site 129 129 . . . Note=Proton donor;Ontology_term=ECO:0000250;evidence=ECO:0000250