##gff-version 3 Q54FB7 UniProtKB Chain 1 1358 . . . ID=PRO_0000327650;Note=Xanthine dehydrogenase Q54FB7 UniProtKB Domain 18 107 . . . Note=2Fe-2S ferredoxin-type;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00465 Q54FB7 UniProtKB Domain 253 447 . . . Note=FAD-binding PCMH-type;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00718 Q54FB7 UniProtKB Active site 1302 1302 . . . Note=Proton acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 56 56 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P22985 Q54FB7 UniProtKB Binding site 61 61 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P22985 Q54FB7 UniProtKB Binding site 64 64 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P22985 Q54FB7 UniProtKB Binding site 89 89 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P22985 Q54FB7 UniProtKB Binding site 129 129 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P22985 Q54FB7 UniProtKB Binding site 132 132 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P22985 Q54FB7 UniProtKB Binding site 164 164 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P22985 Q54FB7 UniProtKB Binding site 166 166 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P22985 Q54FB7 UniProtKB Binding site 281 288 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 366 366 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 376 380 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 389 389 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 437 437 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 455 455 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 805 805 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 836 836 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 840 840 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 918 918 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 950 950 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 952 952 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 1048 1048 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q54FB7 UniProtKB Binding site 1117 1117 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250