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Sigma Factor


A sigma factor factor) is a prokaryotic transcription initiation factor that enables specific binding of RNA polymerase to gene promoters. Different sigma factors are activated in response to different environmental conditions. Every molecule of RNA polymerase...
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In the regulation of gene expression in prokaryotes, anti-sigma factors bind to sigma factors and inhibit their transcriptional activity. Anti-sigma factors have been found in Escherichia coli, Salmonella, and T4 bacteriophage. Anti-sigma factors are antagonists to the sigma factors, which regulate numerous cell processes including flagellar production,...
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Sigma factors are classified into two structurally unrelated families, the σ70 ... For each sigma factor, when applicable, examples are drawn from multiple species. ...
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of new sigma factors allows the coordinated activation of discrete sets of genes ... The primary sigma factor from Escherichia coli has a ...
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Information about sigma factor in the free online English ... sigma. sigma baryon. sigma factor. sigmatism. Sigmodon. Sigmodon hispidus. Sigmodont. sigmoid ...
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For each sigma factor, when applicable, examples are drawn from multiple species. ... The text is organized by sigma factor to include the three subfamilies (stress ...
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For each sigma factor, when applicable, examples are drawn from multiple species. ... An Extracytoplasmic Function Sigma Factor Acts as a General Stress Response ...
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The European Bioinformatics Institute ... IPR013324 RNA polymerase sigma factor, regions 3 and 4 ... An exception is the sigma factor WhiG in the genus ...
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The European Bioinformatics Institute ... This sigma factor is induced in stationary phase (in response to the stress of ... polymerase sigma-70 factor 119 ...
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Alternative sigma factors provide a means of regulating gene expression in ... One such class of sigma factors appears to control a variety of functions, ...
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Britannica online encyclopedia article on sigma factor (biochemistry), ...the genetic information has been transcribed. The way in which this selectivity is achieved ...
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We wanted to study the role of the group 2 sigma factors in Synechocystis. ... The role of the housekeeping sigma factor, SigA, remains less well defined. ...
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... Associates' Lean Six Sigma and Design for Lean Six Sigma (DFSS) implementations and statistical ... A rebuttal to "The 'Six Sigma' Factor for Home Depot" ...
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Expression of the secondary sigma factor sigmaX in Streptococcus pyogenes is ... A secondary RNA polymerase sigma factor from Streptococcus pyogenes ...
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... by sigma factors ... regulates the sigma factors? Not transcriptional ... Sigma factors in sporulation. Old gene names New gene names Protein ...
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... suggest that control in vivo is mediated indirectly by altering sigma factor ... activation of alternative sigma factor-dependent transcription by ppGpp ...
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The first description of genes that encode σ70-like sigma factors in multicellular eukaryotes. ... A review of the E. coli stationary phase sigma factor σS. ...
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