##gff-version 3 P52846 UniProtKB Chain 1 295 . . . ID=PRO_0000085129;Note=Sulfotransferase 1A1 P52846 UniProtKB Active site 108 108 . . . Note=Proton acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250 P52846 UniProtKB Binding site 48 53 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50225 P52846 UniProtKB Binding site 106 108 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50225 P52846 UniProtKB Binding site 130 130 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50225 P52846 UniProtKB Binding site 138 138 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50225 P52846 UniProtKB Binding site 193 193 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50225 P52846 UniProtKB Binding site 227 232 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50225 P52846 UniProtKB Binding site 255 259 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P50225 P52846 UniProtKB Modified residue 138 138 . . . Note=Phosphoserine;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P17988