PMID:3906031
| Citation |
Yousif, SY, Broome-Smith, JK and Spratt, BG (1985) Lysis of Escherichia coli by beta-lactam antibiotics: deletion analysis of the role of penicillin-binding proteins 1A and 1B. J. Gen. Microbiol. 131:2839-45 |
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| Abstract |
Deletions of the ponA and ponB genes of Escherichia coli have been constructed in vitro and recombined into the chromosome to produce strains that completely lack penicillin-binding protein 1A or penicillin-binding protein 1B. In each case a DNA fragment internal to the gene was replaced by a fragment encoding an antibiotic resistance. The ponA and ponB deletions can therefore be readily introduced into other E. coli strains by P1 transduction of the antibiotic resistance. Although the complete absence of penicillin-binding protein 1A or penicillin-binding protein 1B was tolerated, the absence of both of these proteins was shown to result in bacterial lysis. |
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| Keywords |
Acyltransferases/genetics; Anti-Bacterial Agents/pharmacology; Bacterial Proteins; Bacteriolysis/drug effects; Carrier Proteins; Escherichia coli/drug effects; Escherichia coli/genetics; Genes, Bacterial; Hexosyltransferases/genetics; Microbial Sensitivity Tests; Multienzyme Complexes/genetics; Muramoylpentapeptide Carboxypeptidase; Mutation; Penicillin-Binding Proteins; Peptidyl Transferases/genetics; beta-Lactams |
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