##gff-version 3 Q9KYV7 UniProtKB Chain 1 280 . . . ID=PRO_0000415083;Note=Purine nucleoside phosphorylase Q9KYV7 UniProtKB Binding site 15 15 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 Q9KYV7 UniProtKB Binding site 55 56 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 Q9KYV7 UniProtKB Binding site 194 194 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 Q9KYV7 UniProtKB Binding site 195 195 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 Q9KYV7 UniProtKB Binding site 218 220 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 Q9KYV7 UniProtKB Site 231 231 . . . Note=Important for substrate specificity;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963