##gff-version 3 A2BIU4 UniProtKB Chain 1 274 . . . ID=PRO_0000415104;Note=S-methyl-5'-thioadenosine phosphorylase A2BIU4 UniProtKB Binding site 20 20 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 A2BIU4 UniProtKB Binding site 62 63 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 A2BIU4 UniProtKB Binding site 95 96 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 A2BIU4 UniProtKB Binding site 194 194 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 A2BIU4 UniProtKB Binding site 195 195 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 A2BIU4 UniProtKB Binding site 218 220 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 A2BIU4 UniProtKB Site 175 175 . . . Note=Important for substrate specificity;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963 A2BIU4 UniProtKB Site 229 229 . . . Note=Important for substrate specificity;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01963