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. 1977 Dec;132(3):779-83.
doi: 10.1128/jb.132.3.779-783.1977.

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

N Sicard, F Bouvier

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

N Sicard et al. J Bacteriol. 1977 Dec.

Abstract

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.

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