•转录因子(Transcription factor): 能够调控基因转录的蛋白质因子,包括sigma因子在内。 3. Sigma70 Sigma70因子是细菌中最广泛存在的sigma因子之一,被广泛研究。它能结合到核心RNA聚合酶上,与启动子区域结合,并协助RNA聚合酶启动转录过程。Sigma70因子在细菌中调控大部分非特异性转录,是细菌进化过程中的关键调控因子...
Editorial: Role of transcription factors and sigma factors in bacterial stress physiologydoi:10.3389/fmicb.2023.1291172SIGMA factor (Transcription factor)BACTERIAL physiologyPSYCHOLOGICAL stressPerez-Rueda, ErnestoSchellhorn, Herb E.Kumar, SantoshFrontiers in Microbiology...
Sigma factorreduces the affinity of RNA polymerase for nonspecific DNA while increasing specificity for promoters, allowing transcription to initiate at correct sites. WikiMatrix However, Richard Ebright and co-workers, using fluorescence resonance energy transfer, later showed that thesigma factordoes not...
Sigma factor H (σH) controls the transcription of HSPs in order to provide protection to DNA and various enzymes (Spector & Kenyon, 2012). Sigma factor E (σE) is an alternative sigma factor that responds to extracytoplasmic stress. It has been established that ∼50% of the S. ...
Transcription is regulated by proteins called sigma factors. Search The mathematical composition regarding determination of nominal Posted onDecember 20, 2024 Reply Participants were categorized into increasing and reducing WC trajectory teams during the median 5.9-year visibility duration by group-based traj...
Plastid genomes of red algae contain more genes than those of green plant lineages, and it is of special interest that four transcription factors derived ... A Minoda,K Nagasawa,M Hanaoka,... - 《Plant Molecular Biology》 被引量: 70发表: 2005年 The plastid sigma factor SIG1 maintains pho...
Once the sigma factor leaves the core enzyme(核心酶), what happens? ___ _A _ A. Transcription B. egins. C. The core enzyme continues synthesis. D. The core enzyme discontinues synthesis. E. Transcription terminates. F. nd d 相关知识点: 试题来源: 解析 A,E 反馈 收藏 ...
The transcription factor Spo0A of Bacillus subtilis has the unique ability to activate transcription from promoters that require different forms of RNA polymerase holoenzyme. One class of Spo0A-activated promoter, which includes spoIIEp, is recognized by RNA polymerase associated with the primary sig...
Description :Sigma transcription factor controlling the regulation of genes is required for protection againstexternal stresses. Possibly, it affects the expression of katE (catalase HPII), xthA(endonuclease III), the appABC operon, and other genes by modifying the affinity of RNApolymerase for the ...
Dual-Specificity Anti-sigma Factor Reinforces Control of Cell-Type Specific Gene Expression in Bacillus subtilis 2015, PLoS Genetics Genome-Wide Analysis of Cell Type-Specific Gene Transcription during Spore Formation in Clostridium difficile 2013, PLoS Genetics View all citing articles on ScopusRecommende...