Epigenetic control of virulence gene expression in Pseudomonas aeruginosa by a LysR-type transcription regulator.

Abstract:

:Phenotypic variation within an isogenic bacterial population is thought to ensure the survival of a subset of cells in adverse conditions. The opportunistic pathogen Pseudomonas aeruginosa variably expresses several phenotypes, including antibiotic resistance, biofilm formation, and the production of CupA fimbriae. Here we describe a previously unidentified bistable switch in P. aeruginosa. This switch controls the expression of a diverse set of genes, including aprA, which encodes the secreted virulence factor alkaline protease. We present evidence that bistable expression of PA2432, herein named bexR (bistable expression regulator), which encodes a LysR-type transcription regulator, controls this switch. In particular, using DNA microarrays, quantitative RT-PCR analysis, chromatin immunoprecipitation, and reporter gene fusions, we identify genes directly under the control of BexR and show that these genes are bistably expressed. Furthermore, we show that bexR is itself bistably expressed and positively autoregulated. Finally, using single-cell analyses of a GFP reporter fusion, we present evidence that positive autoregulation of bexR is necessary for bistable expression of the BexR regulon. Our findings suggest that a positive feedback loop involving a LysR-type transcription regulator serves as the basis for an epigenetic switch that controls virulence gene expression in P. aeruginosa.

journal_name

PLoS Genet

journal_title

PLoS genetics

authors

Turner KH,Vallet-Gely I,Dove SL

doi

10.1371/journal.pgen.1000779

subject

Has Abstract

pub_date

2009-12-01 00:00:00

pages

e1000779

issue

12

eissn

1553-7390

issn

1553-7404

journal_volume

5

pub_type

杂志文章
  • Insights into the genetic epidemiology of Crohn's and rare diseases in the Ashkenazi Jewish population.

    abstract::As part of a broader collaborative network of exome sequencing studies, we developed a jointly called data set of 5,685 Ashkenazi Jewish exomes. We make publicly available a resource of site and allele frequencies, which should serve as a reference for medical genetics in the Ashkenazim (hosted in part at https://ibd....

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1007329

    authors: Rivas MA,Avila BE,Koskela J,Huang H,Stevens C,Pirinen M,Haritunians T,Neale BM,Kurki M,Ganna A,Graham D,Glaser B,Peter I,Atzmon G,Barzilai N,Levine AP,Schiff E,Pontikos N,Weisburd B,Lek M,Karczewski KJ,Bloom J,

    更新日期:2018-05-24 00:00:00

  • The abnormal phenotypes of cartilage and bone in calcium-sensing receptor deficient mice are dependent on the actions of calcium, phosphorus, and PTH.

    abstract::Patients with neonatal severe hyperparathyroidism (NSHPT) are homozygous for the calcium-sensing receptor (CaR) mutation and have very high circulating PTH, abundant parathyroid hyperplasia, and severe life-threatening hypercalcemia. Mice with homozygous deletion of CaR mimic the syndrome of NSHPT. To determine effect...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1002294

    authors: Liu J,Lv F,Sun W,Tao C,Ding G,Karaplis A,Brown E,Goltzman D,Miao D

    更新日期:2011-09-01 00:00:00

  • Correction: Gene Expansion Shapes Genome Architecture in the Human Pathogen Lichtheimia corymbifera: An Evolutionary Genomics Analysis in the Ancient Terrestrial Mucorales (Mucoromycotina).

    abstract::[This corrects the article DOI: 10.1371/journal.pgen.1004496.]. ...

    journal_title:PLoS genetics

    pub_type: 已发布勘误

    doi:10.1371/journal.pgen.1006491

    authors: Schwartze VU,Winter S,Shelest E,Marcet-Houben M,Horn F,Wehner S,Linde J,Valiante V,Sammeth M,Riege K,Nowrousian M,Kaerger K,Jacobsen ID,Marz M,Brakhage AA,Gabaldón T,Böcker S,Voigt K

    更新日期:2016-12-05 00:00:00

  • Yeast genetic analysis reveals the involvement of chromatin reassembly factors in repressing HIV-1 basal transcription.

    abstract::Rebound of HIV viremia after interruption of anti-retroviral therapy is due to the small population of CD4+ T cells that remain latently infected. HIV-1 transcription is the main process controlling post-integration latency. Regulation of HIV-1 transcription takes place at both initiation and elongation levels. Pausin...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1000339

    authors: Vanti M,Gallastegui E,Respaldiza I,Rodríguez-Gil A,Gómez-Herreros F,Jimeno-González S,Jordan A,Chávez S

    更新日期:2009-01-01 00:00:00

  • Cytoneme-mediated signaling essential for tumorigenesis.

    abstract::Communication between neoplastic cells and cells of their microenvironment is critical to cancer progression. To investigate the role of cytoneme-mediated signaling as a mechanism for distributing growth factor signaling proteins between tumor and tumor-associated cells, we analyzed EGFR and RET Drosophila tumor model...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1008415

    authors: Fereres S,Hatori R,Hatori M,Kornberg TB

    更新日期:2019-09-30 00:00:00

  • Unique genetic signatures of local adaptation over space and time for diapause, an ecologically relevant complex trait, in Drosophila melanogaster.

    abstract::Organisms living in seasonally variable environments utilize cues such as light and temperature to induce plastic responses, enabling them to exploit favorable seasons and avoid unfavorable ones. Local adapation can result in variation in seasonal responses, but the genetic basis and evolutionary history of this varia...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1009110

    authors: Erickson PA,Weller CA,Song DY,Bangerter AS,Schmidt P,Bergland AO

    更新日期:2020-11-20 00:00:00

  • Dominant sequences of human major histocompatibility complex conserved extended haplotypes from HLA-DQA2 to DAXX.

    abstract::We resequenced and phased 27 kb of DNA within 580 kb of the MHC class II region in 158 population chromosomes, most of which were conserved extended haplotypes (CEHs) of European descent or contained their centromeric fragments. We determined the single nucleotide polymorphism and deletion-insertion polymorphism allel...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004637

    authors: Larsen CE,Alford DR,Trautwein MR,Jalloh YK,Tarnacki JL,Kunnenkeri SK,Fici DA,Yunis EJ,Awdeh ZL,Alper CA

    更新日期:2014-10-09 00:00:00

  • Genome-wide physical activity interactions in adiposity - A meta-analysis of 200,452 adults.

    abstract::Physical activity (PA) may modify the genetic effects that give rise to increased risk of obesity. To identify adiposity loci whose effects are modified by PA, we performed genome-wide interaction meta-analyses of BMI and BMI-adjusted waist circumference and waist-hip ratio from up to 200,452 adults of European (n = 1...

    journal_title:PLoS genetics

    pub_type: 杂志文章,meta分析

    doi:10.1371/journal.pgen.1006528

    authors: Graff M,Scott RA,Justice AE,Young KL,Feitosa MF,Barata L,Winkler TW,Chu AY,Mahajan A,Hadley D,Xue L,Workalemahu T,Heard-Costa NL,den Hoed M,Ahluwalia TS,Qi Q,Ngwa JS,Renström F,Quaye L,Eicher JD,Hayes JE,Corneli

    更新日期:2017-04-27 00:00:00

  • Comparative analysis of regulatory elements between Escherichia coli and Klebsiella pneumoniae by genome-wide transcription start site profiling.

    abstract::Genome-wide transcription start site (TSS) profiles of the enterobacteria Escherichia coli and Klebsiella pneumoniae were experimentally determined through modified 5' RACE followed by deep sequencing of intact primary mRNA. This identified 3,746 and 3,143 TSSs for E. coli and K. pneumoniae, respectively. Experimental...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1002867

    authors: Kim D,Hong JS,Qiu Y,Nagarajan H,Seo JH,Cho BK,Tsai SF,Palsson BØ

    更新日期:2012-01-01 00:00:00

  • Functional exploration of the IFT-A complex in intraflagellar transport and ciliogenesis.

    abstract::Intraflagellar transport (IFT) particles or trains are composed of IFT-A and IFT-B complexes. To assess the working mechanism of the IFT-A complex in IFT and ciliogenesis, we have analyzed ift43 mutants of Chlamydomnonas in conjunction with mutants of the other IFT-A subunits. An ift43 null mutant or a mutant with a p...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1006627

    authors: Zhu B,Zhu X,Wang L,Liang Y,Feng Q,Pan J

    更新日期:2017-02-16 00:00:00

  • Deep genome-wide measurement of meiotic gene conversion using tetrad analysis in Arabidopsis thaliana.

    abstract::Gene conversion, the non-reciprocal exchange of genetic information, is one of the potential products of meiotic recombination. It can shape genome structure by acting on repetitive DNA elements, influence allele frequencies at the population level, and is known to be implicated in human disease. But gene conversion i...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1002968

    authors: Sun Y,Ambrose JH,Haughey BS,Webster TD,Pierrie SN,Muñoz DF,Wellman EC,Cherian S,Lewis SM,Berchowitz LE,Copenhaver GP

    更新日期:2012-01-01 00:00:00

  • Protein modularity of alternatively spliced exons is associated with tissue-specific regulation of alternative splicing.

    abstract::Recent comparative genomic analysis of alternative splicing has shown that protein modularity is an important criterion for functional alternative splicing events. Exons that are alternatively spliced in multiple organisms are much more likely to be an exact multiple of 3 nt in length, representing a class of "modular...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.0010034

    authors: Xing Y,Lee CJ

    更新日期:2005-09-01 00:00:00

  • Complementary Critical Functions of Zfy1 and Zfy2 in Mouse Spermatogenesis and Reproduction.

    abstract::The mammalian Y chromosome plays a critical role in spermatogenesis. However, the exact functions of each gene in the Y chromosome have not been completely elucidated, partly owing to difficulties in gene targeting analysis of the Y chromosome. Zfy was first proposed to be a sex determination factor, but its function ...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1006578

    authors: Nakasuji T,Ogonuki N,Chiba T,Kato T,Shiozawa K,Yamatoya K,Tanaka H,Kondo T,Miyado K,Miyasaka N,Kubota T,Ogura A,Asahara H

    更新日期:2017-01-23 00:00:00

  • Mammalian neurogenesis requires Treacle-Plk1 for precise control of spindle orientation, mitotic progression, and maintenance of neural progenitor cells.

    abstract::The cerebral cortex is a specialized region of the brain that processes cognitive, motor, somatosensory, auditory, and visual functions. Its characteristic architecture and size is dependent upon the number of neurons generated during embryogenesis and has been postulated to be governed by symmetric versus asymmetric ...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1002566

    authors: Sakai D,Dixon J,Dixon MJ,Trainor PA

    更新日期:2012-01-01 00:00:00

  • Coordinate genomic association of transcription factors controlled by an imported quorum sensing peptide in Cryptococcus neoformans.

    abstract::Qsp1 is a secreted quorum sensing peptide required for virulence of the fungal meningitis pathogen Cryptococcus neoformans. Qsp1 functions to control cell wall integrity in vegetatively growing cells and also functions in mating. Rather than acting on a cell surface receptor, Qsp1 is imported to act intracellularly vi...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1008744

    authors: Summers DK,Perry DS,Rao B,Madhani HD

    更新日期:2020-09-21 00:00:00

  • Validation and genotyping of multiple human polymorphic inversions mediated by inverted repeats reveals a high degree of recurrence.

    abstract::In recent years different types of structural variants (SVs) have been discovered in the human genome and their functional impact has become increasingly clear. Inversions, however, are poorly characterized and more difficult to study, especially those mediated by inverted repeats or segmental duplications. Here, we d...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004208

    authors: Aguado C,Gayà-Vidal M,Villatoro S,Oliva M,Izquierdo D,Giner-Delgado C,Montalvo V,García-González J,Martínez-Fundichely A,Capilla L,Ruiz-Herrera A,Estivill X,Puig M,Cáceres M

    更新日期:2014-03-20 00:00:00

  • Structural features of single-stranded integron cassette attC sites and their role in strand selection.

    abstract::We recently showed that cassette integration and deletion in integron platforms were occurring through unconventional site-specific recombination reactions involving only the bottom strand of attC sites. The lack of sequence conservation among attC sites led us to hypothesize that sequence-independent structural recog...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1000632

    authors: Bouvier M,Ducos-Galand M,Loot C,Bikard D,Mazel D

    更新日期:2009-09-01 00:00:00

  • Correction: Functional male accessory glands and fertility in Drosophila require novel ecdysone receptor.

    abstract::[This corrects the article DOI: 10.1371/journal.pgen.1006788.]. ...

    journal_title:PLoS genetics

    pub_type: 已发布勘误

    doi:10.1371/journal.pgen.1006893

    authors: Sharma V,Pandey AK,Kumar A,Misra S,Gupta HPK,Gupta S,Singh A,Buehner NA,Ravi Ram K

    更新日期:2017-07-12 00:00:00

  • Conditional mouse models support the role of SLC39A14 (ZIP14) in Hyperostosis Cranialis Interna and in bone homeostasis.

    abstract::Hyperostosis Cranialis Interna (HCI) is a rare bone disorder characterized by progressive intracranial bone overgrowth at the skull. Here we identified by whole-exome sequencing a dominant mutation (L441R) in SLC39A14 (ZIP14). We show that L441R ZIP14 is no longer trafficked towards the plasma membrane and excessively...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1007321

    authors: Hendrickx G,Borra VM,Steenackers E,Yorgan TA,Hermans C,Boudin E,Waterval JJ,Jansen IDC,Aydemir TB,Kamerling N,Behets GJ,Plumeyer C,D'Haese PC,Busse B,Everts V,Lammens M,Mortier G,Cousins RJ,Schinke T,Stokroos RJ,M

    更新日期:2018-04-05 00:00:00

  • Identification of 526 conserved metazoan genetic innovations exposes a new role for cofactor E-like in neuronal microtubule homeostasis.

    abstract::The evolution of metazoans from their choanoflagellate-like unicellular ancestor coincided with the acquisition of novel biological functions to support a multicellular lifestyle, and eventually, the unique cellular and physiological demands of differentiated cell types such as those forming the nervous, muscle and im...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1003804

    authors: Frédéric MY,Lundin VF,Whiteside MD,Cueva JG,Tu DK,Kang SY,Singh H,Baillie DL,Hutter H,Goodman MB,Brinkman FS,Leroux MR

    更新日期:2013-01-01 00:00:00

  • Region-specific activation of oskar mRNA translation by inhibition of Bruno-mediated repression.

    abstract::A complex program of translational repression, mRNA localization, and translational activation ensures that Oskar (Osk) protein accumulates only at the posterior pole of the Drosophila oocyte. Inappropriate expression of Osk disrupts embryonic axial patterning, and is lethal. A key factor in translational repression i...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004992

    authors: Kim G,Pai CI,Sato K,Person MD,Nakamura A,Macdonald PM

    更新日期:2015-02-27 00:00:00

  • RNA-processing protein TDP-43 regulates FOXO-dependent protein quality control in stress response.

    abstract::Protein homeostasis is critical for cell survival and functions during stress and is regulated at both RNA and protein levels. However, how the cell integrates RNA-processing programs with post-translational protein quality control systems is unknown. Transactive response DNA-binding protein (TARDBP/TDP-43) is an RNA-...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004693

    authors: Zhang T,Baldie G,Periz G,Wang J

    更新日期:2014-10-16 00:00:00

  • A cautionary note on the use of unsupervised machine learning algorithms to characterise malaria parasite population structure from genetic distance matrices.

    abstract::Genetic surveillance of malaria parasites supports malaria control programmes, treatment guidelines and elimination strategies. Surveillance studies often pose questions about malaria parasite ancestry (e.g. how antimalarial resistance has spread) and employ statistical methods that characterise parasite population st...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1009037

    authors: Watson JA,Taylor AR,Ashley EA,Dondorp A,Buckee CO,White NJ,Holmes CC

    更新日期:2020-10-09 00:00:00

  • Gene Expression Differences in Prostate Cancers between Young and Old Men.

    abstract::Prostate cancer incidence is increasing in younger men. We investigated whether men diagnosed with Gleason 7 (3+4) T2 prostate cancer at younger ages (≤ 45 years, young cohort) had different mRNA and miRNA expression profiles than men diagnosed at older ages (71-74 years, older cohort). We identified differentially ex...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1006477

    authors: Ding Y,Wu H,Warden C,Steele L,Liu X,Iterson MV,Wu X,Nelson R,Liu Z,Yuan YC,Neuhausen SL

    更新日期:2016-12-27 00:00:00

  • Susceptibility loci associated with specific and shared subtypes of lymphoid malignancies.

    abstract::The genetics of lymphoma susceptibility reflect the marked heterogeneity of diseases that comprise this broad phenotype. However, multiple subtypes of lymphoma are observed in some families, suggesting shared pathways of genetic predisposition to these pathologically distinct entities. Using a two-stage GWAS, we teste...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1003220

    authors: Vijai J,Kirchhoff T,Schrader KA,Brown J,Dutra-Clarke AV,Manschreck C,Hansen N,Rau-Murthy R,Sarrel K,Przybylo J,Shah S,Cheguri S,Stadler Z,Zhang L,Paltiel O,Ben-Yehuda D,Viale A,Portlock C,Straus D,Lipkin SM,Lacher

    更新日期:2013-01-01 00:00:00

  • Identifying signatures of natural selection in Tibetan and Andean populations using dense genome scan data.

    abstract::High-altitude hypoxia (reduced inspired oxygen tension due to decreased barometric pressure) exerts severe physiological stress on the human body. Two high-altitude regions where humans have lived for millennia are the Andean Altiplano and the Tibetan Plateau. Populations living in these regions exhibit unique circula...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1001116

    authors: Bigham A,Bauchet M,Pinto D,Mao X,Akey JM,Mei R,Scherer SW,Julian CG,Wilson MJ,López Herráez D,Brutsaert T,Parra EJ,Moore LG,Shriver MD

    更新日期:2010-09-09 00:00:00

  • Adaptive genome duplication affects patterns of molecular evolution in Saccharomyces cerevisiae.

    abstract::Genome duplications are important evolutionary events that impact the rate and spectrum of beneficial mutations and thus the rate of adaptation. Laboratory evolution experiments initiated with haploid Saccharomyces cerevisiae cultures repeatedly experience whole-genome duplication (WGD). We report recurrent genome dup...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1007396

    authors: Fisher KJ,Buskirk SW,Vignogna RC,Marad DA,Lang GI

    更新日期:2018-05-25 00:00:00

  • Genetic mapping of MAPK-mediated complex traits Across S. cerevisiae.

    abstract::Signaling pathways enable cells to sense and respond to their environment. Many cellular signaling strategies are conserved from fungi to humans, yet their activity and phenotypic consequences can vary extensively among individuals within a species. A systematic assessment of the impact of naturally occurring genetic ...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1004913

    authors: Treusch S,Albert FW,Bloom JS,Kotenko IE,Kruglyak L

    更新日期:2015-01-08 00:00:00

  • CorE from Myxococcus xanthus is a copper-dependent RNA polymerase sigma factor.

    abstract::The dual toxicity/essentiality of copper forces cells to maintain a tightly regulated homeostasis for this metal in all living organisms, from bacteria to humans. Consequently, many genes have previously been reported to participate in copper detoxification in bacteria. Myxococcus xanthus, a prokaryote, encodes many p...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1002106

    authors: Gómez-Santos N,Pérez J,Sánchez-Sutil MC,Moraleda-Muñoz A,Muñoz-Dorado J

    更新日期:2011-06-01 00:00:00

  • Loss of hepatocyte cell division leads to liver inflammation and fibrosis.

    abstract::The liver possesses a remarkable regenerative capacity based partly on the ability of hepatocytes to re-enter the cell cycle and divide to replace damaged cells. This capability is substantially reduced upon chronic damage, but it is not clear if this is a cause or consequence of liver disease. Here, we investigate wh...

    journal_title:PLoS genetics

    pub_type: 杂志文章

    doi:10.1371/journal.pgen.1009084

    authors: Dewhurst MR,Ow JR,Zafer G,van Hul NKM,Wollmann H,Bisteau X,Brough D,Choi H,Kaldis P

    更新日期:2020-11-04 00:00:00