##gff-version 3 P23660 UniProtKB Chain 1 364 . . . ID=PRO_0000184051;Note=Endoglucanase A P23660 UniProtKB Active site 169 169 . . . Note=Proton donor;Ontology_term=ECO:0000250;evidence=ECO:0000250 P23660 UniProtKB Active site 293 293 . . . Note=Nucleophile;Ontology_term=ECO:0000250;evidence=ECO:0000250