##gff-version 3 P48981 UniProtKB Signal peptide 1 23 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255 P48981 UniProtKB Chain 24 731 . . . ID=PRO_0000012197;Note=Beta-galactosidase P48981 UniProtKB Active site 182 182 . . . Note=Proton donor;Ontology_term=ECO:0000255;evidence=ECO:0000255 P48981 UniProtKB Active site 251 251 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255 P48981 UniProtKB Glycosylation 459 459 . . . Note=N-linked (GlcNAc...) asparagine;Ontology_term=ECO:0000255;evidence=ECO:0000255