##gff-version 3 Q9SQG2 UniProtKB Chain 1 471 . . . ID=PRO_0000419905;Note=Apyrase 1 Q9SQG2 UniProtKB Topological domain 1 21 . . . Note=Cytoplasmic;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q9SQG2 UniProtKB Transmembrane 22 42 . . . Note=Helical%3B Signal-anchor for type II membrane protein;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q9SQG2 UniProtKB Topological domain 43 471 . . . Note=Lumenal;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q9SQG2 UniProtKB Active site 194 194 . . . Note=Proton acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250 Q9SQG2 UniProtKB Binding site 72 82 . . . Ontology_term=ECO:0000305;evidence=ECO:0000305 Q9SQG2 UniProtKB Binding site 218 228 . . . Ontology_term=ECO:0000305;evidence=ECO:0000305 Q9SQG2 UniProtKB Glycosylation 333 333 . . . Note=N-linked (GlcNAc...) asparagine;Ontology_term=ECO:0000255;evidence=ECO:0000255