##gff-version 3 Q7N8D1 UniProtKB Chain 1 258 . . . ID=PRO_0000142032;Note=1-(5-phosphoribosyl)-5-[(5-phosphoribosylamino)methylideneamino] imidazole-4-carboxamide isomerase 2 Q7N8D1 UniProtKB Active site 14 14 . . . Note=Proton acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250 Q7N8D1 UniProtKB Active site 140 140 . . . Note=Proton donor;Ontology_term=ECO:0000250;evidence=ECO:0000250