##gff-version 3 Q0TUR6 UniProtKB Chain 1 689 . . . ID=PRO_0000407688;Note=Beta-galactosidase Pbg Q0TUR6 UniProtKB Active site 157 157 . . . Note=Proton donor;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O69315 Q0TUR6 UniProtKB Active site 318 318 . . . Note=Nucleophile;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O69315 Q0TUR6 UniProtKB Binding site 118 118 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O69315 Q0TUR6 UniProtKB Binding site 122 122 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O69315 Q0TUR6 UniProtKB Binding site 156 156 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O69315 Q0TUR6 UniProtKB Binding site 162 162 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O69315 Q0TUR6 UniProtKB Binding site 164 164 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O69315 Q0TUR6 UniProtKB Binding site 167 167 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O69315 Q0TUR6 UniProtKB Binding site 326 326 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O69315 Q0TUR6 UniProtKB Binding site 366 369 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:O69315