##gff-version 3 P23954 UniProtKB Signal peptide 1 27 . . . Ontology_term=ECO:0000269,ECO:0000269;evidence=ECO:0000269|PubMed:1909282,ECO:0000269|PubMed:9462429;Dbxref=PMID:1909282,PMID:9462429 P23954 UniProtKB Chain 28 290 . . . ID=PRO_0000016998;Note=Beta-lactamase OXY-2 P23954 UniProtKB Active site 72 72 . . . Note=Acyl-ester intermediate;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU10101 P23954 UniProtKB Binding site 236 238 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 P23954 UniProtKB Natural variant 15 15 . . . Note=In strain: KH11 and SB23. Missing P23954 UniProtKB Natural variant 199 199 . . . Note=In strain: D488 and HB60. D->N P23954 UniProtKB Natural variant 225 225 . . . Note=In strain: D488. A->V P23954 UniProtKB Natural variant 255 255 . . . Note=In strain: D488. D->N