Regulation of virulence by members of the MarR/SlyA family.

Abstract:

:Virulence gene regulators RovA, SlyA and PecS comprise a subset of the MarR/SlyA family of transcriptional regulators, which has been shown to be involved in the regulation of virulence genes. These regulators have all been shown to both positively and negatively regulate the expression of multiple genes, involving several different mechanisms. One of the conserved mechanisms of regulatory control among these proteins appears to be competition for binding sites with other proteins. SlyA negatively regulates its own expression by interfering with the binding of RNA polymerase, whereas RovA appears to interfere with the progression of RNA polymerase from its promoter and to compete for binding with the heat-stable nucleoid-structural protein (H-NS), a global transcriptional silencer. PecS represses transcription by competing for binding with cAMP receptor protein, a global activator. RovA, SlyA and PecS have all been shown to act as derepressors by competing for binding sites with repressors. Recently, RovA also was found to enhance transcription through interaction with RNA polymerase.

journal_name

Curr Opin Microbiol

authors

Ellison DW,Miller VL

doi

10.1016/j.mib.2006.02.003

subject

Has Abstract

pub_date

2006-04-01 00:00:00

pages

153-9

issue

2

eissn

1369-5274

issn

1879-0364

pii

S1369-5274(06)00023-3

journal_volume

9

pub_type

杂志文章,评审
  • Single-cell genomic sequencing using Multiple Displacement Amplification.

    abstract::Single microbial cells can now be sequenced using DNA amplified by the Multiple Displacement Amplification (MDA) reaction. The few femtograms of DNA in a bacterium are amplified into micrograms of high molecular weight DNA suitable for DNA library construction and Sanger sequencing. The MDA-generated DNA also performs...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2007.08.005

    authors: Lasken RS

    更新日期:2007-10-01 00:00:00

  • Immune control of phagosomal bacteria by p47 GTPases.

    abstract::Sequestered from the action of complement, antibody and lytic peptides, phagosomal pathogens pose a unique problem for the innate immune system both in terms of detection and disposal. An immunologically induced 47-kDa (p47) GTPase family recruited to nascent phagosomes (PGs) has provided new insights into how vertebr...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2004.12.012

    authors: MacMicking JD

    更新日期:2005-02-01 00:00:00

  • The ultimate picture-the combination of live cell superresolution microscopy and single molecule tracking yields highest spatio-temporal resolution.

    abstract::We are witnessing a breathtaking development in light (fluorescence) microscopy, where structures can be resolved down to the size of a ribosome within cells. This has already yielded surprising insight into the subcellular structure of cells, including the smallest cells, bacteria. Moreover, it has become possible to...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2017.11.027

    authors: Dersch S,Graumann PL

    更新日期:2018-06-01 00:00:00

  • Epichloë endophytes: fungal symbionts of grasses.

    abstract::Recent developments have increased our understanding of the evolution of mutualistic associations between Epichloë endophytes and their grass hosts. Most of the asexual species appear to be interspecific hybrids. Although endophytes form compatible associations with their natural hosts, transfers to other hosts elicit...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/s1369-5274(00)00224-1

    authors: Scott B

    更新日期:2001-08-01 00:00:00

  • Intestinal barrier dysfunction triggered by invasive bacteria.

    abstract::The ability to control uptake across the mucosa and to protect the gut from harmful substances present in the lumen is defined as intestinal barrier function. Two routes are usually distinguished for transepithelial transport. The paracellular route allows the passage of ions and small molecules and is mainly regulate...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2013.12.003

    authors: Barreau F,Hugot JP

    更新日期:2014-02-01 00:00:00

  • New chemical tools to probe cell wall biosynthesis in bacteria.

    abstract::Some of the most successful drugs in the antibiotic pharmacopeia are those that inhibit bacterial cell wall biosynthesis. However, the worldwide spread of bacterial antibiotic resistance has eroded the clinical efficacy of these drugs and the antibiotic pipeline continues to be lean as drug discovery programs struggle...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2015.07.013

    authors: Gale RT,Brown ED

    更新日期:2015-10-01 00:00:00

  • Extracellular signaling and multicellularity in Bacillus subtilis.

    abstract::Bacillus subtilis regulates its ability to differentiate into distinct, co-existing cell types in response to extracellular signaling molecules produced either by itself, or present in its environment. The production of molecules by B. subtilis cells, as well as their response to these signals, is not uniform across t...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2011.09.016

    authors: Shank EA,Kolter R

    更新日期:2011-12-01 00:00:00

  • Recent advances in systems microbiology.

    abstract::Systems biology is a rapidly expanding field fuelled by the 'omics' era coupled to several new technological advances that have increased the precision of data obtainable, meaning that it is now feasible to obtain quantitative measurements from a single cell. The aim of systems biology is to understand the structure, ...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2009.08.007

    authors: Kay E,Wren BW

    更新日期:2009-10-01 00:00:00

  • Shared epigenetic mechanisms control virulence factors in protozoan parasites.

    abstract::Protozoan pathogens have evolved countermeasures to avoid immune clearance and prolong the period of infection in their vertebrate hosts. The type and degree of immune escape strategies depends on the in vivo 'lifestyle' the pathogen has adopted. Here we describe how parasites use different strategies to coordinate th...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2007.10.003

    authors: Lopez-Rubio JJ,Riviere L,Scherf A

    更新日期:2007-12-01 00:00:00

  • Regulatory small RNAs from the 3' regions of bacterial mRNAs.

    abstract::Most studies of small regulatory RNAs in bacteria have focussed on conserved transcripts in intergenic regions. However, several recent developments including single-nucleotide resolution transcriptome profiling by RNA-seq and increased knowledge of the cellular targets of the RNA chaperone Hfq suggest that the bacter...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2015.01.013

    authors: Miyakoshi M,Chao Y,Vogel J

    更新日期:2015-04-01 00:00:00

  • Eco-Aging: stem cells and microbes are controlled by aging antagonist FoxO.

    abstract::The review highlights the dual role that the conserved master regulator FoxO has in aging by coordinating both stem cell proliferation and antimicrobial peptides, effector molecules of the innate immune system. As observed in non-senescent Hydra, continuously high activity of the transcription factor FoxO contributes ...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2017.06.009

    authors: Mortzfeld BM,Bosch TC

    更新日期:2017-08-01 00:00:00

  • Group B Streptococcus surface proteins as major determinants for meningeal tropism.

    abstract::Streptococcus agalactiae (group B Streptococcus, GBS), a normal constituent of the intestinal microbiota is the major cause of human neonatal infections and a worldwide spread 'hypervirulent' clone, GBS ST-17, is strongly associated with neonatal meningitis. Adhesion to epithelial and endothelial cells constitutes a k...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2011.12.002

    authors: Tazi A,Bellais S,Tardieux I,Dramsi S,Trieu-Cuot P,Poyart C

    更新日期:2012-02-01 00:00:00

  • Mycobacterium tuberculosis in the post-genomic age.

    abstract::Since the publication of the complete genome sequence of Mycobacterium tuberculosis in 1998, there has been a marked intensification and diversification of activities in the field of tuberculosis research. Among the areas that have advanced spectacularly are comparative genomics, functional genomics-notably the study ...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/s1369-5274(00)00160-0

    authors: Domenech P,Barry CE 3rd,Cole ST

    更新日期:2001-02-01 00:00:00

  • How and why myxobacteria talk to each other.

    abstract::In response to starvation, myxobacteria build multicellular fruiting bodies that contain many thousands of cells and that have particular species-specific shapes. To coordinate fruiting body development, the myxobacterial cells signal to each other. The timing of and cellular responses to these signals help to give fo...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/s1369-5274(98)80112-4

    authors: Kaiser D

    更新日期:1998-12-01 00:00:00

  • The role of 'eat-me' signals and autophagy cargo receptors in innate immunity.

    abstract::Selective autophagy is an important effector mechanism of cell autonomous immunity, in particular against invasive bacterial species. Anti-bacterial autophagy is activated by rupture of bacteria-containing vacuoles and exposure of bacteria to the cytosol. The autophagy cargo receptors p62, NDP52 and Optineurin detect ...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2013.03.010

    authors: Boyle KB,Randow F

    更新日期:2013-06-01 00:00:00

  • Molecular basis of pathogenicity in Blastomyces dermatitidis: the importance of adhesion.

    abstract::An understanding of the molecular bases of pathogenicity in Blastomyces dermatitidis and related systemic dimorphic fungi has been limited until recent years. Yeast cells of B. dermatitidis display an adhesion promoting protein termed WI-1. Recent studies entailing homologous gene targeting and mutation of WI-1 have p...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/s1369-5274(00)00100-4

    authors: Klein BS

    更新日期:2000-08-01 00:00:00

  • HIV-host interactions: vital to the virus and key to its inhibition.

    abstract::Much progress has been made in recent years in the investigation of the interplay between HIV-1 and its host cells. Most of these interactions are complex and have not yet been fully unraveled. Nevertheless, current knowledge on the molecular interactions between HIV and host-cell factors has substantially broadened o...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2004.06.002

    authors: Trkola A

    更新日期:2004-08-01 00:00:00

  • Cell cycle and sporulation in Bacillus subtilis.

    abstract::Recent work on cell division and chromosome orientation and partitioning in Bacillus subtilis has provided insights into cell cycle regulation during growth and development. The cell cycle is an integral part of development and entrance into sporulation is modulated by signals that transmit the status of DNA integrity...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/s1369-5274(98)80107-0

    authors: Levin PA,Grossman AD

    更新日期:1998-12-01 00:00:00

  • The coming of age of niche vaccines? Effect of vaccines on resistance profiles in Streptococcus pneumoniae.

    abstract::Pneumococcal conjugate vaccine is not only effective against invasive and non-invasive disease in all ages but also has a significant impact on antibiotic-resistant infections since a number of resistant serotypes are targeted by the vaccine. Surveillance studies in the post-licensure years have shown an increase in n...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2007.08.008

    authors: McGee L

    更新日期:2007-10-01 00:00:00

  • The role of Dectin-1 in the host defence against fungal infections.

    abstract::Dectin-1 is an innate immune pattern recognition receptor (PRR) that, through its ability to bind β-glucans, is involved in the recognition of several pathogenic fungi. Dectin-1 can stimulate a variety of cellular responses via the Syk/CARD9 signalling pathway, including phagocytosis, cytokine production and the respi...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2011.07.001

    authors: Drummond RA,Brown GD

    更新日期:2011-08-01 00:00:00

  • Collaborative signaling by bacterial chemoreceptors.

    abstract::Motile bacteria seek optimal living habitats by following gradients of attractant and repellent chemicals in their environment. The signaling machinery for these chemotactic behaviors, although assembled from just a few protein components, has extraordinary information-processing capabilities. Escherichia coli, the be...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2005.02.008

    authors: Parkinson JS,Ames P,Studdert CA

    更新日期:2005-04-01 00:00:00

  • Mechanisms controlling glideosome function in apicomplexans.

    abstract::The glideosome is a unique attribute of the Apicomplexa phylum. This myosin-based machine powers parasite motility, migration across biological barriers, host cell invasion and egress from infected cells. The timing, duration and orientation of gliding motility are tightly regulated to assure establishment of infectio...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2009.06.008

    authors: Daher W,Soldati-Favre D

    更新日期:2009-08-01 00:00:00

  • Single-cell reporters for pathogen responses to antimicrobial host attacks.

    abstract::Host-pathogen interactions are often heterogeneous involving individual encounters between host and pathogen cells with diverse molecular mechanisms, response networks, and diverging outcomes. Single-cell reporters can identify the various types of interactions and participating pathogen subsets, help to unravel under...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2020.07.013

    authors: Roche B,Bumann D

    更新日期:2021-02-01 00:00:00

  • Genetic control of asexual sporulation in filamentous fungi.

    abstract::Asexual sporulation (conidiation) in the ascomycetous filamentous fungi involves the formation of conidia, formed on specialized structures called conidiophores. Conidiation in filamentous fungi involves many common themes including spatial and temporal regulation of gene expression, specialized cellular differentiati...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2012.09.006

    authors: Park HS,Yu JH

    更新日期:2012-12-01 00:00:00

  • When protons attack: microbial strategies of acid adaptation.

    abstract::Inducible tolerance to acidic and alkaline environments is recognized as an important survival strategy for many prokaryotic and eukaryotic microorganisms. Recent developments in understanding this phenomenon include the identification of regulatory genes, specific tolerance mechanisms and genes associated with tolera...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/S1369-5274(99)80030-7

    authors: Foster JW

    更新日期:1999-04-01 00:00:00

  • Auxiliary phosphatases in two-component signal transduction.

    abstract::Signal termination in two-component systems occurs by loss of the phosphoryl group from the response regulator protein. This review explores our current understanding of the structures, catalytic mechanisms and means of regulation of the known families of phosphatases that catalyze response regulator dephosphorylation...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2010.01.004

    authors: Silversmith RE

    更新日期:2010-04-01 00:00:00

  • Antibacterials - mechanisms of action.

    abstract::Recent studies on antibacterials have focused on the development of antimycobacterial agents and antibacterial peptides, and on furthering the understanding of agents that have been available for several decades, including imidazoles, beta-lactams and quinolones. New areas of research include antisense oligonucleotide...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/s1369-5274(98)80081-7

    authors: Piddock LJ

    更新日期:1998-10-01 00:00:00

  • Genetic code ambiguity: an unexpected source of proteome innovation and phenotypic diversity.

    abstract::Translation of the genome into the proteome is a highly accurate biological process. However, the molecular mechanisms involved in protein synthesis are not error free and downstream protein quality control systems are needed to counteract the negative effects of translational errors (mistranslation) on proteome and c...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2009.09.004

    authors: Moura GR,Carreto LC,Santos MA

    更新日期:2009-12-01 00:00:00

  • Cell division is dispensable but not irrelevant in Streptomyces.

    abstract::In part, members of the genus Streptomyces have been studied because they produce many important secondary metabolites with antibiotic activity and for the interest in their relatively elaborate life cycle. These sporulating filamentous bacteria are remarkably synchronous for division and genome segregation in special...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2009.10.004

    authors: McCormick JR

    更新日期:2009-12-01 00:00:00

  • Roles of adaptor proteins in regulation of bacterial proteolysis.

    abstract::Elimination of non-functional or unwanted proteins is critical for cell growth and regulation. In bacteria, ATP-dependent proteases target cytoplasmic proteins for degradation, contributing to both protein quality control and regulation of specific proteins, thus playing roles parallel to that of the proteasome in euk...

    journal_title:Current opinion in microbiology

    pub_type: 杂志文章,评审

    doi:10.1016/j.mib.2013.01.002

    authors: Battesti A,Gottesman S

    更新日期:2013-04-01 00:00:00