A model symbiosis reveals a role for sheathed-flagellum rotation in the release of immunogenic lipopolysaccharide.

Abstract:

:Bacterial flagella mediate host-microbe interactions through tissue tropism during colonization, as well as by activating immune responses. The flagellar shaft of some bacteria, including several human pathogens, is encased in a membranous sheath of unknown function. While it has been hypothesized that the sheath may allow these bacteria to evade host responses to the immunogenic flagellin subunit, this unusual structural feature has remained an enigma. Here we demonstrate that the rotation of the sheathed flagellum in both the mutualist Vibrio fischeri and the pathogen Vibrio cholerae promotes release of a potent bacteria-derived immunogen, lipopolysaccharide, found in the flagellar sheath. We further present a new role for the flagellar sheath in triggering, rather than circumventing, host immune responses in the model squid-vibrio symbiosis. Such an observation not only has implications for the study of bacterial pathogens with sheathed flagella, but also raises important biophysical questions of sheathed-flagellum function. DOI: http://dx.doi.org/10.7554/eLife.01579.001.

journal_name

Elife

journal_title

eLife

authors

Brennan CA,Hunt JR,Kremer N,Krasity BC,Apicella MA,McFall-Ngai MJ,Ruby EG

doi

10.7554/eLife.01579

subject

Has Abstract

pub_date

2014-03-04 00:00:00

pages

e01579

issn

2050-084X

journal_volume

3

pub_type

杂志文章

相关文献

eLife文献大全
  • Polycystin-2 is an essential ion channel subunit in the primary cilium of the renal collecting duct epithelium.

    abstract::Mutations in the polycystin genes, PKD1 or PKD2, results in Autosomal Dominant Polycystic Kidney Disease (ADPKD). Although a genetic basis of ADPKD is established, we lack a clear understanding of polycystin proteins' functions as ion channels. This question remains unsolved largely because polycystins localize to the...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.33183

    authors: Liu X,Vien T,Duan J,Sheu SH,DeCaen PG,Clapham DE

    更新日期:2018-02-14 00:00:00

  • mPFC spindle cycles organize sparse thalamic activation and recently active CA1 cells during non-REM sleep.

    abstract::Sleep oscillations in the neocortex and hippocampus are critical for the integration of new memories into stable generalized representations in neocortex. However, the role of the thalamus in this process is poorly understood. To determine the thalamic contribution to non-REM oscillations (sharp-wave ripples, SWRs; sl...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.48881

    authors: Varela C,Wilson MA

    更新日期:2020-06-11 00:00:00

  • Diffusion-MRI-based regional cortical microstructure at birth for predicting neurodevelopmental outcomes of 2-year-olds.

    abstract::Cerebral cortical architecture at birth encodes regionally differential dendritic arborization and synaptic formation. It underlies behavioral emergence of 2-year-olds. Brain changes in 0-2 years are most dynamic across the lifespan. Effective prediction of future behavior with brain microstructure at birth will revea...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.58116

    authors: Ouyang M,Peng Q,Jeon T,Heyne R,Chalak L,Huang H

    更新日期:2020-12-22 00:00:00

  • Mechanistic signs of double-barreled structure in a fluoride ion channel.

    abstract::The Fluc family of F(-) ion channels protects prokaryotes and lower eukaryotes from the toxicity of environmental F(-). In bacteria, these channels are built as dual-topology dimers whereby the two subunits assemble in antiparallel transmembrane orientation. Recent crystal structures suggested that Fluc channels conta...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.18767

    authors: Last NB,Kolmakova-Partensky L,Shane T,Miller C

    更新日期:2016-07-23 00:00:00

  • A mitochondria-anchored isoform of the actin-nucleating spire protein regulates mitochondrial division.

    abstract::Mitochondrial division, essential for survival in mammals, is enhanced by an inter-organellar process involving ER tubules encircling and constricting mitochondria. The force for constriction is thought to involve actin polymerization by the ER-anchored isoform of the formin protein inverted formin 2 (INF2). Unknown i...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.08828

    authors: Manor U,Bartholomew S,Golani G,Christenson E,Kozlov M,Higgs H,Spudich J,Lippincott-Schwartz J

    更新日期:2015-08-25 00:00:00

  • On the trail of a tropical disease.

    abstract::Learning more about the cells that enable parasitic worms called schistosomes to reproduce inside snails could lead to new treatments that prevent these parasites from being transmitted to humans. ...

    journal_title:eLife

    pub_type: 评论,杂志文章

    doi:10.7554/eLife.01115

    authors: Sánchez Alvarado A

    更新日期:2013-07-30 00:00:00

  • Structural basis for the activation of PLC-γ isozymes by phosphorylation and cancer-associated mutations.

    abstract::Direct activation of the human phospholipase C-γ isozymes (PLC-γ1, -γ2) by tyrosine phosphorylation is fundamental to the control of diverse biological processes, including chemotaxis, platelet aggregation, and adaptive immunity. In turn, aberrant activation of PLC-γ1 and PLC-γ2 is implicated in inflammation, autoimmu...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.51700

    authors: Hajicek N,Keith NC,Siraliev-Perez E,Temple BR,Huang W,Zhang Q,Harden TK,Sondek J

    更新日期:2019-12-31 00:00:00

  • Augmented reality powers a cognitive assistant for the blind.

    abstract::To restore vision for the blind, several prosthetic approaches have been explored that convey raw images to the brain. So far, these schemes all suffer from a lack of bandwidth. An alternate approach would restore vision at the cognitive level, bypassing the need to convey sensory data. A wearable computer captures vi...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.37841

    authors: Liu Y,Stiles NR,Meister M

    更新日期:2018-11-27 00:00:00

  • Plasticity of both planar cell polarity and cell identity during the development of Drosophila.

    abstract::Drosophila has helped us understand the genetic mechanisms of pattern formation. Particularly useful have been those organs in which different cell identities and polarities are displayed cell by cell in the cuticle and epidermis (Lawrence, 1992; Bejsovec and Wieschaus, 1993; Freeman, 1997). Here we use the pattern of...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.01569

    authors: Saavedra P,Vincent JP,Palacios IM,Lawrence PA,Casal J

    更新日期:2014-02-11 00:00:00

  • Insights into the dynamic control of breathing revealed through cell-type-specific responses to substance P.

    abstract::The rhythm generating network for breathing must continuously adjust to changing metabolic and behavioral demands. Here, we examined network-based mechanisms in the mouse preBötzinger complex using substance P, a potent excitatory modulator of breathing frequency and stability, as a tool to dissect network properties ...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.51350

    authors: Baertsch NA,Ramirez JM

    更新日期:2019-12-05 00:00:00

  • Pattern regulation in a regenerating jellyfish.

    abstract::Jellyfish, with their tetraradial symmetry, offer a novel paradigm for addressing patterning mechanisms during regeneration. Here we show that an interplay between mechanical forces, cell migration and proliferation allows jellyfish fragments to regain shape and functionality rapidly, notably by efficient restoration ...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.54868

    authors: Sinigaglia C,Peron S,Eichelbrenner J,Chevalier S,Steger J,Barreau C,Houliston E,Leclère L

    更新日期:2020-09-07 00:00:00

  • RNA promotes phase separation of glycolysis enzymes into yeast G bodies in hypoxia.

    abstract::In hypoxic stress conditions, glycolysis enzymes assemble into singular cytoplasmic granules called glycolytic (G) bodies. G body formation in yeast correlates with increased glucose consumption and cell survival. However, the physical properties and organizing principles that define G body formation are unclear. We d...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.48480

    authors: Fuller GG,Han T,Freeberg MA,Moresco JJ,Ghanbari Niaki A,Roach NP,Yates JR 3rd,Myong S,Kim JK

    更新日期:2020-04-16 00:00:00

  • Taking aim at Sox18.

    abstract::A small molecule called Sm4 can disrupt interactions involving a transcription factor called Sox18, while having little impact on other members of the SoxF family. ...

    journal_title:eLife

    pub_type: 评论,杂志文章

    doi:10.7554/eLife.24238

    authors: Kim I,Koh GY

    更新日期:2017-01-31 00:00:00

  • Caught in a TrAP.

    abstract::Some DNA viruses overcome plant defenses by producing a suppressor protein that blocks the silencing of viral genes. ...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.11509

    authors: Ré DA,Manavella PA

    更新日期:2015-10-16 00:00:00

  • Glucocorticoid receptor-mediated amygdalar metaplasticity underlies adaptive modulation of fear memory by stress.

    abstract::Glucocorticoid receptor (GR) is crucial for signaling mediated by stress-induced high levels of glucocorticoids. The lateral nucleus of the amygdala (LA) is a key structure underlying auditory-cued fear conditioning. Here, we demonstrate that genetic disruption of GR in the LA (LAGRKO) resulted in an auditory-cued fea...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.34135

    authors: Inoue R,Abdou K,Hayashi-Tanaka A,Muramatsu SI,Mino K,Inokuchi K,Mori H

    更新日期:2018-06-26 00:00:00

  • Distinct responses to reduplicated chromosomes require distinct Mad2 responses.

    abstract::Duplicating chromosomes once each cell cycle produces sister chromatid pairs, which separate accurately at anaphase. In contrast, reduplicating chromosomes without separation frequently produces polytene chromosomes, a barrier to accurate mitosis. Chromosome reduplication occurs in many contexts, including: polytene t...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.15204

    authors: Stormo BM,Fox DT

    更新日期:2016-05-09 00:00:00

  • Support for a clade of Placozoa and Cnidaria in genes with minimal compositional bias.

    abstract::The phylogenetic placement of the morphologically simple placozoans is crucial to understanding the evolution of complex animal traits. Here, we examine the influence of adding new genomes from placozoans to a large dataset designed to study the deepest splits in the animal phylogeny. Using site-heterogeneous substitu...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.36278

    authors: Laumer CE,Gruber-Vodicka H,Hadfield MG,Pearse VB,Riesgo A,Marioni JC,Giribet G

    更新日期:2018-10-30 00:00:00

  • Mapping the function of neuronal ion channels in model and experiment.

    abstract::Ion channel models are the building blocks of computational neuron models. Their biological fidelity is therefore crucial for the interpretation of simulations. However, the number of published models, and the lack of standardization, make the comparison of ion channel models with one another and with experimental dat...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.22152

    authors: Podlaski WF,Seeholzer A,Groschner LN,Miesenböck G,Ranjan R,Vogels TP

    更新日期:2017-03-06 00:00:00

  • Secretagogin expression delineates functionally-specialized populations of striatal parvalbumin-containing interneurons.

    abstract::Corticostriatal afferents can engage parvalbumin-expressing (PV+) interneurons to rapidly curtail the activity of striatal projection neurons (SPNs), thus shaping striatal output. Schemes of basal ganglia circuit dynamics generally consider striatal PV+ interneurons to be homogenous, despite considerable heterogeneity...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.16088

    authors: Garas FN,Shah RS,Kormann E,Doig NM,Vinciati F,Nakamura KC,Dorst MC,Smith Y,Magill PJ,Sharott A

    更新日期:2016-09-26 00:00:00

  • Lipid polarity gradient formed by ω-hydroxy lipids in tear film prevents dry eye disease.

    abstract::Meibum lipids form a lipid layer on the outermost side of the tear film and function to prevent water evaporation and reduce surface tension. (O-Acyl)-ω-hydroxy fatty acids (OAHFAs), a subclass of these lipids, are thought to be involved in connecting the lipid and aqueous layers in tears, although their actual functi...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.53582

    authors: Miyamoto M,Sassa T,Sawai M,Kihara A

    更新日期:2020-04-07 00:00:00

  • The structures of secretory and dimeric immunoglobulin A.

    abstract::Secretory (S) Immunoglobulin (Ig) A is the predominant mucosal antibody, which binds pathogens and commensal microbes. SIgA is a polymeric antibody, typically containing two copies of IgA that assemble with one joining-chain (JC) to form dimeric (d) IgA that is bound by the polymeric Ig-receptor ectodomain, called sec...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.56098

    authors: Kumar Bharathkar S,Parker BW,Malyutin AG,Haloi N,Huey-Tubman KE,Tajkhorshid E,Stadtmueller BM

    更新日期:2020-10-27 00:00:00

  • Presynaptic PTPσ regulates postsynaptic NMDA receptor function through direct adhesion-independent mechanisms.

    abstract::Synaptic adhesion molecules regulate synapse development and function. However, whether and how presynaptic adhesion molecules regulate postsynaptic NMDAR function remains largely unclear. Presynaptic LAR family receptor tyrosine phosphatases (LAR-RPTPs) regulate synapse development through mechanisms that include tra...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.54224

    authors: Kim K,Shin W,Kang M,Lee S,Kim D,Kang R,Jung Y,Cho Y,Yang E,Kim H,Bae YC,Kim E

    更新日期:2020-03-06 00:00:00

  • AR phosphorylation and CHK2 kinase activity regulates IR-stabilized AR-CHK2 interaction and prostate cancer survival.

    abstract::We have previously demonstrated that checkpoint kinase 2 (CHK2) is a critical negative regulator of androgen receptor (AR) transcriptional activity, prostate cancer (PCa) cell growth, and androgen sensitivity. We have now uncovered that the AR directly interacts with CHK2 and ionizing radiation (IR) increases this int...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.51378

    authors: Ta HQ,Dworak N,Ivey ML,Roller DG,Gioeli D

    更新日期:2020-06-24 00:00:00

  • Drosophila macrophages switch to aerobic glycolysis to mount effective antibacterial defense.

    abstract::Macrophage-mediated phagocytosis and cytokine production represent the front lines of resistance to bacterial invaders. A key feature of this pro-inflammatory response in mammals is the complex remodeling of cellular metabolism towards aerobic glycolysis. Although the function of bactericidal macrophages is highly con...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.50414

    authors: Krejčová G,Danielová A,Nedbalová P,Kazek M,Strych L,Chawla G,Tennessen JM,Lieskovská J,Jindra M,Doležal T,Bajgar A

    更新日期:2019-10-14 00:00:00

  • Control of endothelial cell polarity and sprouting angiogenesis by non-centrosomal microtubules.

    abstract::Microtubules control different aspects of cell polarization. In cells with a radial microtubule system, a pivotal role in setting up asymmetry is attributed to the relative positioning of the centrosome and the nucleus. Here, we show that centrosome loss had no effect on the ability of endothelial cells to polarize an...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.33864

    authors: Martin M,Veloso A,Wu J,Katrukha EA,Akhmanova A

    更新日期:2018-03-16 00:00:00

  • Population genomics of intrapatient HIV-1 evolution.

    abstract::Many microbial populations rapidly adapt to changing environments with multiple variants competing for survival. To quantify such complex evolutionary dynamics in vivo, time resolved and genome wide data including rare variants are essential. We performed whole-genome deep sequencing of HIV-1 populations in 9 untreate...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.11282

    authors: Zanini F,Brodin J,Thebo L,Lanz C,Bratt G,Albert J,Neher RA

    更新日期:2015-12-11 00:00:00

  • Phenotype inference in an Escherichia coli strain panel.

    abstract::Understanding how genetic variation contributes to phenotypic differences is a fundamental question in biology. Combining high-throughput gene function assays with mechanistic models of the impact of genetic variants is a promising alternative to genome-wide association studies. Here we have assembled a large panel of...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.31035

    authors: Galardini M,Koumoutsi A,Herrera-Dominguez L,Cordero Varela JA,Telzerow A,Wagih O,Wartel M,Clermont O,Denamur E,Typas A,Beltrao P

    更新日期:2017-12-27 00:00:00

  • Increasing suppression of saccade-related transients along the human visual hierarchy.

    abstract::A key hallmark of visual perceptual awareness is robustness to instabilities arising from unnoticeable eye and eyelid movements. In previous human intracranial (iEEG) work (Golan et al., 2016) we found that excitatory broadband high-frequency activity transients, driven by eye blinks, are suppressed in higher-level bu...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.27819

    authors: Golan T,Davidesco I,Meshulam M,Groppe DM,Mégevand P,Yeagle EM,Goldfinger MS,Harel M,Melloni L,Schroeder CE,Deouell LY,Mehta AD,Malach R

    更新日期:2017-08-29 00:00:00

  • Telomeric double-strand DNA-binding proteins DTN-1 and DTN-2 ensure germline immortality in Caenorhabditis elegans.

    abstract::Telomeres are nucleoprotein complexes at the ends of chromosomes and are indispensable for the protection and lengthening of terminal DNA. Despite the evolutionarily conserved roles of telomeres, the telomeric double-strand DNA (dsDNA)-binding proteins have evolved rapidly. Here, we identified double-strand telomeric ...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.64104

    authors: Yamamoto I,Zhang K,Zhang J,Vorontsov E,Shibuya H

    更新日期:2021-01-21 00:00:00

  • Is it possible to reconstruct an accurate cell lineage using CRISPR recorders?

    abstract::Cell lineages provide the framework for understanding how cell fates are decided during development. Describing cell lineages in most organisms is challenging; even a fruit fly larva has ~50,000 cells and a small mammal has >1 billion cells. Recently, the idea of applying CRISPR to induce mutations during development,...

    journal_title:eLife

    pub_type: 杂志文章

    doi:10.7554/eLife.40292

    authors: Salvador-Martínez I,Grillo M,Averof M,Telford MJ

    更新日期:2019-01-28 00:00:00