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Sigma-G RNA polymerase controls forespore-specific expression of the glucose dehydrogenase operon in Bacillus subtilis. 1989

Y Nakatani, and W L Nicholson, and K D Neitzke, and P Setlow, and E Freese
Laboratory of Molecular Biology, National Institute of Neurological Disorders and Stroke, Bethesda, MD 20892.

The gene encoding glucose dehydrogenase (gdh) is part of an operon whose expression is transcriptionally activated specifically in the developing forespore of Bacillus subtilis at stage III of sporulation. The in vivo startpoint of gdh transcription was determined using primer extension analysis. Deletion mapping and site-specific mutagenesis experiments indicated that the region responsible for regulated expression of gdh in vivo was limited to the "-35" and "-10" regions preceding the transcriptional start site. RNA polymerase containing omega G (E omega G) transcribed gdh in vitro with a start site identical to that found in vivo, and transcription of gdh by E omega G in vitro also did not require any specific sequences upstream from "-35" region. These results suggest that the appearance of E omega G in the forespore at stage III of sporulation is sufficient to cause temporal and compartment-specific expression of the gdh operon.

UI MeSH Term Description Entries
D007763 Lac Operon The genetic unit consisting of three structural genes, an operator and a regulatory gene. The regulatory gene controls the synthesis of the three structural genes: BETA-GALACTOSIDASE and beta-galactoside permease (involved with the metabolism of lactose), and beta-thiogalactoside acetyltransferase. Lac Gene,LacZ Genes,Lactose Operon,Gene, Lac,Gene, LacZ,Genes, Lac,Genes, LacZ,Lac Genes,Lac Operons,LacZ Gene,Lactose Operons,Operon, Lac,Operon, Lactose,Operons, Lac,Operons, Lactose
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D009710 Nucleotide Mapping Two-dimensional separation and analysis of nucleotides. Fingerprints, Nucleotide,Fingerprint, Nucleotide,Mapping, Nucleotide,Mappings, Nucleotide,Nucleotide Fingerprint,Nucleotide Fingerprints,Nucleotide Mappings
D009876 Operon In bacteria, a group of metabolically related genes, with a common promoter, whose transcription into a single polycistronic MESSENGER RNA is under the control of an OPERATOR REGION. Operons
D002237 Carbohydrate Dehydrogenases Reversibly catalyze the oxidation of a hydroxyl group of carbohydrates to form a keto sugar, aldehyde or lactone. Any acceptor except molecular oxygen is permitted. Includes EC 1.1.1.; EC 1.1.2.; and 1.1.99. Carbohydrate Oxidoreductases,Dehydrogenases, Carbohydrate,Oxidoreductases, Carbohydrate
D002872 Chromosome Deletion Actual loss of portion of a chromosome. Monosomy, Partial,Partial Monosomy,Deletion, Chromosome,Deletions, Chromosome,Monosomies, Partial,Partial Monosomies
D003001 Cloning, Molecular The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells. Molecular Cloning
D004252 DNA Mutational Analysis Biochemical identification of mutational changes in a nucleotide sequence. Mutational Analysis, DNA,Analysis, DNA Mutational,Analyses, DNA Mutational,DNA Mutational Analyses,Mutational Analyses, DNA
D004275 DNA, Ribosomal DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA. Ribosomal DNA,rDNA
D005786 Gene Expression Regulation Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation. Gene Action Regulation,Regulation of Gene Expression,Expression Regulation, Gene,Regulation, Gene Action,Regulation, Gene Expression

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