Expression of pRW83 (penP) and pBR322-encoded β-lactamases in Escherichia coli
✍ Scribed by David B. Davies; Ian Chopra
- Book ID
- 109314053
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 246 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0378-1097
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The structural gene, pen, for the beta-lactamase of B. licheniformis has been cloned into a lambda vector and shown to be expressed at a low rate in E. coli. The cloned pen gene appears to be expressed from a promoter within the fragment of B. licheniformia DNA, since its rate of expression is not a
## Abstract __Objectives__: To determine the prevalence and the diversity of extended‐spectrum β‐lactamases (ESBLs) among __Escherichia coli__ isolates in Zhengzhou, China. __Methods__: Clinical isolates were collected and investigated from the first affiliated hospital of Zhengzhou University and