The construction of single copy promoter-probe vectors for Bacillus subtilis.

Abstract
A series of single copy promoter-probe vectors for Bacillus subtilis was constructed from phage .vphi.105 by introducing a promoterless amylase gene. With these vectors, strong promoters were cloned from Bacillus licheniformis chromosomal DNA. In addition, the transcriptional direction of the kan of pUB110 was determined using the DNA fragments within these phages as promoter-probe cartridges.