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Thymineless death in Escherichia coli dnaB mutants and in a dnaB dnaG double mutant.

By N Sicard and F Bouvier


The interference of dnaB mutations of Escherichia coli with thymineless death is described. All the isogenic Thy- dnaB mutants of E. coli we have tested show a remarkable immunity towards cell death induced by thymine deprivation at the nonpermissive temperature. We have also constructed and tested an isogenic double dnaB dnaG mutant. It loses its viability in the absence of thymine at both permissive and nonpermissive temperatures. The role of the dnaB gene product is discussed

Topics: Research Article
Year: 1977
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Provided by: PubMed Central
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