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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Increased expression of biodegradative threonine dehydratase of Escherichia coli by DNA gyrase inhibitors.

The synthesis of inducible biodegradative threonine dehydratase of Escherichia coli increased several-fold in the presence of the DNA gyrase inhibitors, nalidixic acid and coumermycin. Temperature-sensitive gyrB mutants expressed higher levels of dehydratase as compared to an isogenic gyrB+ strain. Immunoblotting experiments showed increased synthesis of the dehydratase protein in the presence of gyrase inhibitors; addition of rifampicin and chloramphenicol to cells actively synthesizing enzyme preventing new enzyme production. Increased expression of dehydratase by gyrase inhibitors was accompanied by relaxation of supercoiled DNA.[1]

References

  1. Increased expression of biodegradative threonine dehydratase of Escherichia coli by DNA gyrase inhibitors. Sumantran, V.N., Tranguch, A.J., Datta, P. FEMS Microbiol. Lett. (1989) [Pubmed]
 
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