##gff-version 3 P74841 UniProtKB Signal peptide 1 28 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 P74841 UniProtKB Chain 29 291 . . . ID=PRO_0000016990;Note=Beta-lactamase CTX-M-2 P74841 UniProtKB Active site 73 73 . . . Note=Acyl-ester intermediate;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU10101 P74841 UniProtKB Binding site 237 239 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250