The Anti-sigma Factor RsiV Is a Bacterial Receptor for Lysozyme: Co-crystal Structure Determination and Demonstration That Binding of Lysozyme to RsiV Is Required for σV Activation. [PDF]
σ factors provide RNA polymerase with promoter specificity in bacteria. Some σ factors require activation in order to interact with RNA polymerase and transcribe target genes.
Hastie JL +5 more
europepmc +2 more sources
RshA, an anti‐sigma factor that regulates the activity of the mycobacterial stress response sigma factor SigH [PDF]
SummarySigH, an alternative sigma factor of Mycobacterium tuberculosis, is a central regulator of the response to oxidative and heat stress. Exposure to these stresses results in increased expression of sigH itself, and of genes encoding additional regulators and effectors of the bacterial response to these stresses.
T. Song, S. Dove, Kon-Ho Lee, R. Husson
semanticscholar +3 more sources
Background The expression of genes in Corynebacterium glutamicum, a Gram-positive non-pathogenic bacterium used mainly for the industrial production of amino acids, is regulated by seven different sigma factors of RNA polymerase, including the stress ...
Busche Tobias +4 more
doaj +2 more sources
In this study, we characterized 7C, a spontaneous mutant selected from tigecycline-susceptible Mycobacterium abscessus ATCC 19977. Whole-genome sequencing (WGS) was used to identify possible resistance determinants in this mutant.
H. Ng +4 more
semanticscholar +3 more sources
Interactions between a Bacillus subtilis anti-sigma factor (RsbW) and its antagonist (RsbV) [PDF]
The activity of sigma B, a secondary sigma factor of Bacillus subtilis, is primarily controlled by an anti-sigma factor protein (RsbW) that binds to sigma B and blocks its ability to form an RNA polymerase holoenzyme (E-sigma B). Inhibition of sigma B by RsbW is counteracted by RsbV, a protein that is essential for the activation of sigma B-dependent ...
A. Dufour, W. Haldenwang
semanticscholar +3 more sources
The N-Terminal Domain of LIC12756 Is the Key Determinant of This Protein’s Anti-Sigma Activity Toward LIC12757 in Pathogenic Leptospira interrogans [PDF]
Extracytoplasmic function (ECF) σ factors are central regulators of bacterial adaptation to environmental changes. The genome of Leptospira interrogans encodes 11 such factors, including LIC12757. Previous studies have shown that LIC12757 is regulated by
Sabina Kędzierska-Mieszkowska
doaj +2 more sources
Functional Analysis of the Alternative Sigma-28 Factor FliA and Its Anti-Sigma Factor FlgM of the Nonflagellated Legionella Species L. oakridgensis. [PDF]
Tlapák H +5 more
europepmc +2 more sources
A Membrane-Embedded Amino Acid Couples the SpoIIQ Channel Protein to Anti-Sigma Factor Transcriptional Repression during Bacillus subtilis Sporulation. [PDF]
Flanagan KA +5 more
europepmc +2 more sources
Self-cleavage of the Pseudomonas aeruginosa Cell-surface Signaling Anti-sigma Factor FoxR Occurs through an N-O Acyl Rearrangement. [PDF]
Bastiaansen KC +4 more
europepmc +2 more sources
A unique sigma/anti-sigma system in the actinomycete Actinoplanes missouriensis
Bacteria of the genus Actinoplanes form sporangia that contain dormant sporangiospores which, upon contact with water, release motile spores (zoospores) through a process called sporangium dehiscence.
Takeaki Tezuka +3 more
doaj +1 more source

