##gff-version 3 P18251 UniProtKB Signal peptide 1 21 . . . . P18251 UniProtKB Chain 22 286 . . . ID=PRO_0000016996;Note=Beta-lactamase Ohio-1 P18251 UniProtKB Active site 66 66 . . . Note=Acyl-ester intermediate;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU10101 P18251 UniProtKB Active site 164 164 . . . Note=Proton acceptor;Ontology_term=ECO:0000250;evidence=ECO:0000250 P18251 UniProtKB Binding site 230 232 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 P18251 UniProtKB Disulfide bond 73 119 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250