##gff-version 3 B6ER81 UniProtKB Chain 1 236 . . . ID=PRO_1000186169;Note=Purine nucleoside phosphorylase DeoD-type B6ER81 UniProtKB Active site 205 205 . . . Note=Proton donor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01627 B6ER81 UniProtKB Binding site 5 5 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 B6ER81 UniProtKB Binding site 21 21 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 B6ER81 UniProtKB Binding site 25 25 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 B6ER81 UniProtKB Binding site 44 44 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 B6ER81 UniProtKB Binding site 88 91 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 B6ER81 UniProtKB Binding site 180 182 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 B6ER81 UniProtKB Binding site 204 205 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 B6ER81 UniProtKB Site 218 218 . . . Note=Important for catalytic activity;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01627