##gff-version 3 Q5P081 UniProtKB Chain 1 356 . . . ID=PRO_0000234910;Note=Beta-hexosaminidase Q5P081 UniProtKB Active site 193 193 . . . Note=Proton donor/acceptor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q5P081 UniProtKB Active site 264 264 . . . Note=Nucleophile;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q5P081 UniProtKB Binding site 75 75 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q5P081 UniProtKB Binding site 83 83 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q5P081 UniProtKB Binding site 150 150 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q5P081 UniProtKB Binding site 180 181 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364 Q5P081 UniProtKB Site 191 191 . . . Note=Important for catalytic activity;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_00364