title: Promoter sequence analysis in Bacillus and Escherichia: construction of strong promoters in E. coli.
abstract: Many derivatives of the nprM promoter of Bacillus stearothermophilus and the strong early promoter, A3, of coliphage T3 were designed and chemically synthesized. These promoters consisted of some or all of the AT box, consensus sequence, tac promoter sequence, spacer, and lac operator. The promoter activities were assessed by their ability to express the cat gene in Escherichia coli. One of the derivatives of the A3 promoter, which contained the lac operator, was much stronger (about 3.5 times) than the tac promoter. The promoter activities in E. coli were considerably modified by the substitutions in the -43 (AT box) and -35 regions.
authors.affiliation: Biotechnology Research Laboratory, TOSOH Corporation, Kanagawa, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Yamada
authors.forename: M
authors.initials: M
authors.lastname: Kubo
authors.forename: T
authors.initials: T
authors.lastname: Miyake
authors.forename: R
authors.initials: R
authors.lastname: Sakaguchi
authors.forename: Y
authors.initials: Y
authors.lastname: Higo
authors.forename: T
authors.initials: T
authors.lastname: Imanaka
mesh_terms: D001483:Base Sequence; D015500:Chloramphenicol O-Acetyltransferase / Q000235:genetics; D003001:Cloning, Molecular / Q000379:methods; D004926:Escherichia coli / Q000235:genetics*; D005798:Genes, Bacterial; D001411:Geobacillus stearothermophilus / Q000235:genetics*; D007763:Lac Operon; D008969:Molecular Sequence Data; D010957:Plasmids; D011401:Promoter Regions, Genetic; D015183:Restriction Mapping
chemical_list: D015500:Chloramphenicol O-Acetyltransferase