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ABSTRACT: Background
We studied the beta-lactamases of an E. aerogenes isolate recovered from the blood of a two-year-old patient. The isolate demonstrated a disk-diffusion phenotype typical for an AmpC-ESBL co-producer.Methods
Microbiology studies were performed according to standard protocols. The resistance gene was identified by transconjugation and cloning experiments.Results
By transconjugation only a narrow spectrum beta-lactamase (TEM-1) encoded on a small plasmid was transmitted. The ESBL was cloned and expressed in an E. coli host. Sequence analysis of the recombinant plasmid revealed blaSHV-12 associated to the insertion sequence, IS26.Conclusion
This is the first study demonstrated the occurrence of SHV-12 in Nigeria.
SUBMITTER: Kasap M
PROVIDER: S-EPMC2817643 | biostudies-literature | 2010 Jan
REPOSITORIES: biostudies-literature
Kasap Murat M Fashae Kayode K Torol Sinem S Kolayli Fetiye F Budak Fatma F Vahaboglu Haluk H
Annals of clinical microbiology and antimicrobials 20100112
<h4>Background</h4>We studied the beta-lactamases of an E. aerogenes isolate recovered from the blood of a two-year-old patient. The isolate demonstrated a disk-diffusion phenotype typical for an AmpC-ESBL co-producer.<h4>Methods</h4>Microbiology studies were performed according to standard protocols. The resistance gene was identified by transconjugation and cloning experiments.<h4>Results</h4>By transconjugation only a narrow spectrum beta-lactamase (TEM-1) encoded on a small plasmid was trans ...[more]