##gff-version 3 Q64687 UniProtKB Chain 1 355 . . . ID=PRO_0000149283;Note=Alpha-N-acetylneuraminide alpha-2%2C8-sialyltransferase Q64687 UniProtKB Topological domain 1 28 . . . Note=Cytoplasmic;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q64687 UniProtKB Transmembrane 29 47 . . . Note=Helical%3B Signal-anchor for type II membrane protein;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q64687 UniProtKB Topological domain 48 355 . . . Note=Lumenal;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q64687 UniProtKB Active site 321 321 . . . Note=Proton donor/acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O43173 Q64687 UniProtKB Binding site 142 142 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O43173 Q64687 UniProtKB Binding site 165 165 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O43173 Q64687 UniProtKB Binding site 273 273 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O43173 Q64687 UniProtKB Binding site 274 274 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O43173 Q64687 UniProtKB Binding site 275 275 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O43173 Q64687 UniProtKB Binding site 295 295 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O43173 Q64687 UniProtKB Binding site 309 309 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O43173 Q64687 UniProtKB Glycosylation 70 70 . . . Note=N-linked (GlcNAc...) asparagine;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q64687 UniProtKB Glycosylation 118 118 . . . Note=N-linked (GlcNAc...) asparagine;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q64687 UniProtKB Glycosylation 213 213 . . . Note=N-linked (GlcNAc...) asparagine;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q64687 UniProtKB Glycosylation 244 244 . . . Note=N-linked (GlcNAc...) asparagine;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q64687 UniProtKB Disulfide bond 137 286 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O43173 Q64687 UniProtKB Disulfide bond 151 346 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O43173 Q64687 UniProtKB Sequence conflict 50 50 . . . Note=L->P;Ontology_term=ECO:0000305;evidence=ECO:0000305 Q64687 UniProtKB Sequence conflict 64 64 . . . Note=R->S;Ontology_term=ECO:0000305;evidence=ECO:0000305 Q64687 UniProtKB Sequence conflict 294 294 . . . Note=F->S;Ontology_term=ECO:0000305;evidence=ECO:0000305 Q64687 UniProtKB Sequence conflict 318 318 . . . Note=S->T;Ontology_term=ECO:0000305;evidence=ECO:0000305