##gff-version 3 Q7VWV8 UniProtKB Chain 1 352 . . . ID=PRO_0000210783;Note=Beta-hexosaminidase Q7VWV8 UniProtKB Active site 192 192 . . . Note=Proton donor/acceptor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q7VWV8 UniProtKB Active site 263 263 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q7VWV8 UniProtKB Binding site 74 74 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q7VWV8 UniProtKB Binding site 82 82 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q7VWV8 UniProtKB Binding site 149 149 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q7VWV8 UniProtKB Binding site 179 180 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q7VWV8 UniProtKB Site 190 190 . . . Note=Important for catalytic activity;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364