A novel blaCTX-M-14 gene-harboring complex class 1 integron with an In4-like backbone structure from a clinical isolate of Escherichia coli

Abstract

Escherichia coli BDE0502 contained 3 β-lactamase genes including bla DHA-1, bla SHV-12, and bla CTX-M-14. The bla CTX-M-14 gene was found on a complex class 1 integron with an In4-like backbone structure. The bla CTX-M-14 gene was proceeded by a partial copy of IS Ecp1 in addition to the complete copy of IS CR1 element.