##gff-version 3 Q44407 UniProtKB Chain 1 339 . . . ID=PRO_0000227792;Note=Bifunctional phosphoglucose/phosphomannose isomerase Q44407 UniProtKB Domain 22 164 . . . Note=SIS;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00797 Q44407 UniProtKB Active site 221 221 . . . Note=Proton acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250 Q44407 UniProtKB Active site 237 237 . . . Note=Proton donor;Ontology_term=ECO:0000250;evidence=ECO:0000250 Q44407 UniProtKB Active site 331 331 . . . Note=Proton acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250