##gff-version 3 Q57G38 UniProtKB Chain 1 239 . . . ID=PRO_0000063155;Note=Purine nucleoside phosphorylase DeoD-type Q57G38 UniProtKB Active site 205 205 . . . Note=Proton donor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01627 Q57G38 UniProtKB Binding site 5 5 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 Q57G38 UniProtKB Binding site 21 21 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 Q57G38 UniProtKB Binding site 25 25 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 Q57G38 UniProtKB Binding site 44 44 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 Q57G38 UniProtKB Binding site 88 91 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 Q57G38 UniProtKB Binding site 180 182 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 Q57G38 UniProtKB Binding site 204 205 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 Q57G38 UniProtKB Site 218 218 . . . Note=Important for catalytic activity;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01627