##gff-version 3 P77835 UniProtKB Chain 1 234 . . . ID=PRO_0000063120;Note=Purine nucleoside phosphorylase DeoD-type P77835 UniProtKB Active site 203 203 . . . Note=Proton donor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01627 P77835 UniProtKB Binding site 4 4 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 P77835 UniProtKB Binding site 20 20 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 P77835 UniProtKB Binding site 24 24 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 P77835 UniProtKB Binding site 43 43 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 P77835 UniProtKB Binding site 87 90 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 P77835 UniProtKB Binding site 162 162 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 P77835 UniProtKB Binding site 178 180 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 P77835 UniProtKB Binding site 202 203 . . . Note=In other chain;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50389 P77835 UniProtKB Site 216 216 . . . Note=Important for catalytic activity;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01627