##gff-version 3 Q9PBC9 UniProtKB Chain 1 265 . . . ID=PRO_0000142078;Note=1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase Q9PBC9 UniProtKB Active site 10 10 . . . Note=Proton acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250 Q9PBC9 UniProtKB Active site 132 132 . . . Note=Proton donor;Ontology_term=ECO:0000250;evidence=ECO:0000250