Isolation and Characterization of a Clone of the spoVE Locus of Bacillus subtilis

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Abstract
The Bacillus subtilis spoVE locus was isolated from a .lambda. clone bank and a 4.7 kbp EcoRV fragment subcloned into the shuttle vector pHV33. The resulting plasmid complemented chromosomal spoVE mutations. Its structure was stable in recE4 strains, but plasmid and chromosomal rearrangements occurred in rec+ strains. New spoVE mutations were obtained by mutagenesis of the plasmid; all the mutations tested mapped within three adjacent HindIII fragments of total length 1140 bp.