Sigma factor
A Clock-Phased Sigma Factor Cascade Is Required for Global Circadian Transcriptional Rhythms in Cyanobacteria
... Given that rpoD2, rpoD6, rpoD5, and sigF2 are part of the RpaA regulon and may direct expression of circadian genes downstream of RpaA, we sought to investigate the timing of their expression both at the mRNA and protein ...
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The Novel Sigma Factor Like Regulator RpoQ Controls Luminescence, Chitinase Activity, and Motility in Vibrio fischeri
... RpoS factor, RpoS-like sigma factors have been identified in several bacteria, such as Vibrio alginolyticus ZJ-51 and 12G01, Vibrio splendidus LGP32, Vibrio ...RpoS-like sigma factors except for RpoX ...
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Regulation of antimycin biosynthesis by the orphan ECF RNA polymerase sigma factor σ (AntA.).
... Antimycins are an extended family of depsipeptides that are made by filamentous actinomycete bacteria and were first isolated more than 60 years ago. Recently, an- timycins have attracted renewed interest because of ...
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Efficient cell-free expression with the endogenous E. Coli RNA polymerase and sigma factor 70
... coli sigma factor 70 pro- moters can pose significant problems of toxicity due to a potential over-expression of the recombinant protein during plasmid ...
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A Tripartite, Hierarchical Sigma Factor Cascade Promotes Hormogonium Development in the Filamentous Cyanobacterium Nostoc punctiforme
... each sigma factor in the hormogonium GRN, immu- noblotting was used to analyze the expression of the hormogonium-specific proteins PilA (major pilin of the T4P) and HmpD (methyl-accepting chemotaxis ...
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Transcriptional Regulation and Mechanism of SigN (ZpdN), a pBS32 Encoded Sigma Factor in Bacillus subtilis
... Here, we show that ZpdN functions as a bona fide sigma factor which directs RNA polymerase to transcribe a large regulon of genes carried on pBS32. Based on our findings, we rename ZpdN SigN and propose a ...
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Genome-scale reconstruction of the sigma factor network in Escherichia coli: topology and functional states
... Expression of genes with σ 38 -regulated genes was re- covered when rpoS was knocked out; however, it is not known which of the other σ-factors is replacing the role of σ 38 . As σ 70 shared the largest portion of ...
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Role of extracytoplasmic function sigma factors in biofilm formation of Porphyromonas gingivalis
... ECF sigma factor, the protein yields in the PGN_0274 mutant are more abundant than those in the wild-type and the other ...ECF sigma mutants compared with the wild-type (see Additional file ...
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Genome sequence of Ostreococcus tauri virus OtV 2 enlightens the role of picoeukaryote niche separation in the ocean
... 2_201) and a putative RNA polymerase sigma factor (OtV-2_202), which are adjacent to one another. Moreover, in this same region of the OtV-2 genome four genes encoding predicted proteins with no known ...
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Assignment of sigma factors of RNA polymerase to promoters in Corynebacterium glutamicum
... stress sigma factor at least weakly contributes to PtrxB1 activity in vivo, the effects of deletions in the genes sigH, sigM and sigE on the PtrxB1 activity during growth were ...
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Environmental adaptability and stress tolerance of Laribacter hongkongensis: a genome-wide analysis
... polymerase sigma-E factor; σ 28 (FliA): RNA polymerase sigma factor for flagellar operon; σ 32 (RpoH): RNA polymerase sigma-32 factor; σ 38 (RpoS): RNA polymerase sigma ...
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Bioinformatic analysis of RpoH sigma factors from the anoxygenic phototrophic Rhodobacter species
... The composition of alanine, leucine, glutamic acid and arginine was the highest while lowest concentrations of histidine, threonine and phenylalanine and tryptophan. Cysteine was not found in any of the Rpo H ...
5
Wollmann, Petra (2008): The Structure of RseB, a Sensor for Periplasmic Stress in Escherichia coli. Dissertation, LMU München: Fakultät für Chemie und Pharmazie
... RseA-PP periplasmic domain of RseA RseB-D1 large domain of RseB RseB-D2 small domain of RseB. σ sigma factor[r] ...
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Significantly improved solvent tolerance of Escherichia coli by global transcription machinery engineering
... as sigma factor in bacteria [16], zinc finger-containing artificial transcription factor [17], Spt15 in yeast [18] were widely used as a potential tool to improve strain tolerance and increase ...
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Oral abstracts
... Competence for genetic transformation in Streptococcus pneumoniae : primary sigma factor mutations enhance transcription of late genes in.. comW mutants[r] ...
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High-Resolution Crystal Structure of RpoS Fragment Including a Partial Region 1.2 and Region 2 from the Intracellular Pathogen Legionella pneumophila
... Abstract: Legionella pneumophila RpoS (LpRpoS) is an alternative sigma factor of RNA polymerase 13.. (RNAP) essential for virulence and stress resistance.[r] ...
10
An application of Six Sigma to reduce waste
... Six Sigma has been considered a powerful business strategy that employs a well- structured continuous improvement methodology to reduce process variability and drive out waste within the business processes using ...
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Sigma-matrix ideals and Sigma-inverting homomorphisms
... The mapping taking each element of R to the corresponding element of Rg [R^^] is clearly a homomorphism X^:R— >R^ [X^^:R— >R^^], which is S-[right] inverting by construction. If f:R— >S is any Z-[right] ...
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Disquisition on Green Impact of Lean Six Sigma: A Review
... Six Sigma is quality enhancement process discovered by Motorola for improvement of various procedures ...Six Sigma has expeditiously procured recognition and acceptance around the world as it focusses on ...
6
Liquefaction Mitigation of Silty Sands with Microbial Induced Calcium Carbonate Precipitation.
... Monotonic tests performed on Ottawa C-109 sand mixed with crushed non-plastic silica fines have been performed using a systematic variation in fines content and the results obtained are presented in Figure 2.11. All ...
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