Directed expression of the HIV-1 accessory protein Vpu in Drosophila fat-body cells inhibits Toll-dependent immune responses.

Abstract:

:Human immunodeficiency virus 1 (HIV-1) expresses several accessory proteins that manipulate various host-cell processes to achieve optimum replicative efficiency. One of them, viral protein U (Vpu), has been shown to interfere with the cellular degradation machinery through interaction with SCF(beta-TrCP) complexes. To learn more about Vpu function in vivo, we used the genetically tractable fruit fly, Drosophila melanogaster. Our results show that the directed expression of Vpu, but not the non-phosphorylated form, Vpu2/6, in fat-body cells affects Drosophila antimicrobial responses. In flies, the Toll and Imd pathways regulate antimicrobial-peptide gene expression. We show that Vpu specifically affects Toll pathway activation by inhibiting Cactus degradation. Given the conservation of the Toll/nuclear factor-kappa B (NF-kappa B) signalling pathways between flies and mammals, our results suggest a function for Vpu in the inhibition of host NF-kappa B-mediated innate immune defences and provide a powerful genetic approach for studying Vpu inhibition of NF-kappa B signalling in vivo.

journal_name

EMBO Rep

journal_title

EMBO reports

authors

Leulier F,Marchal C,Miletich I,Limbourg-Bouchon B,Benarous R,Lemaitre B

doi

10.1038/sj.embor.embor936

keywords:

subject

Has Abstract

pub_date

2003-10-01 00:00:00

pages

976-81

issue

10

eissn

1469-221X

issn

1469-3178

pii

embor936

journal_volume

4

pub_type

杂志文章
  • The intramembrane protease SPPL2c promotes male germ cell development by cleaving phospholamban.

    abstract::Signal peptide peptidase (SPP) and the four homologous SPP-like (SPPL) proteases constitute a family of intramembrane aspartyl proteases with selectivity for type II-oriented transmembrane segments. Here, we analyse the physiological function of the orphan protease SPPL2c, previously considered to represent a non-expr...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.201846449

    authors: Niemeyer J,Mentrup T,Heidasch R,Müller SA,Biswas U,Meyer R,Papadopoulou AA,Dederer V,Haug-Kröper M,Adamski V,Lüllmann-Rauch R,Bergmann M,Mayerhofer A,Saftig P,Wennemuth G,Jessberger R,Fluhrer R,Lichtenthaler SF,Lember

    更新日期:2019-03-01 00:00:00

  • Parkin binds the Rpn10 subunit of 26S proteasomes through its ubiquitin-like domain.

    abstract::Parkin, a product of the causative gene of autosomal-recessive juvenile parkinsonism (AR-JP), is a RING-type E3 ubiquitin ligase and has an amino-terminal ubiquitin-like (Ubl) domain. Although a single mutation that causes an Arg to Pro substitution at position 42 of the Ubl domain (the Arg 42 mutation) has been ident...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/sj.embor.embor764

    authors: Sakata E,Yamaguchi Y,Kurimoto E,Kikuchi J,Yokoyama S,Yamada S,Kawahara H,Yokosawa H,Hattori N,Mizuno Y,Tanaka K,Kato K

    更新日期:2003-03-01 00:00:00

  • Lipoic acid and autophagy: new insights into stem cell aging.

    abstract::The gastrointestinal tract undergoes homeostatic self-renewal to replace aged and damaged epithelial cells. This process, sustained by intestinal stem cells (ISCs), can operate accurately for many years but gradually declines with age. Although stem cell aging has been intensively explored, the mechanisms remain poorl...

    journal_title:EMBO reports

    pub_type: 评论,新闻

    doi:10.15252/embr.202051175

    authors: Zhang P,Edgar BA

    更新日期:2020-08-05 00:00:00

  • The Gam protein of bacteriophage Mu is an orthologue of eukaryotic Ku.

    abstract::Mu bacteriophage inserts its DNA into the genome of host bacteria and is used as a model for DNA transposition events in other systems. The eukaryotic Ku protein has key roles in DNA repair and in certain transposition events. Here we show that the Gam protein of phage Mu is conserved in bacteria, has sequence homolog...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/sj.embor.embor709

    authors: d'Adda di Fagagna F,Weller GR,Doherty AJ,Jackson SP

    更新日期:2003-01-01 00:00:00

  • Selenoprotein T is a novel OST subunit that regulates UPR signaling and hormone secretion.

    abstract::Selenoprotein T (SelT) is a recently characterized thioredoxin-like protein whose expression is very high during development, but is confined to endocrine tissues in adulthood where its function is unknown. We report here that SelT is required for adaptation to the stressful conditions of high hormone level production...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.201643504

    authors: Hamieh A,Cartier D,Abid H,Calas A,Burel C,Bucharles C,Jehan C,Grumolato L,Landry M,Lerouge P,Anouar Y,Lihrmann I

    更新日期:2017-11-01 00:00:00

  • Redox activation of ATM enhances GSNOR translation to sustain mitophagy and tolerance to oxidative stress.

    abstract::The denitrosylase S-nitrosoglutathione reductase (GSNOR) has been suggested to sustain mitochondrial removal by autophagy (mitophagy), functionally linking S-nitrosylation to cell senescence and aging. In this study, we provide evidence that GSNOR is induced at the translational level in response to hydrogen peroxide ...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.202050500

    authors: Cirotti C,Rizza S,Giglio P,Poerio N,Allega MF,Claps G,Pecorari C,Lee JH,Benassi B,Barilà D,Robert C,Stamler JS,Cecconi F,Fraziano M,Paull TT,Filomeni G

    更新日期:2020-11-27 00:00:00

  • ADAR1 promotes robust hypoxia signaling via distinct regulation of multiple HIF-1α-inhibiting factors.

    abstract::Adenosine deaminase acting on RNA (ADAR)-catalyzed adenosine-to-inosine RNA editing is potentially dysregulated in neoplastic progression. However, how this transcriptome recoding process is functionally correlated with tumorigenesis remains largely elusive. Our analyses of RNA editome datasets identify hypoxia-relate...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.201847107

    authors: Ma CP,Liu H,Yi-Feng Chang I,Wang WC,Chen YT,Wu SM,Chen HW,Kuo YP,Shih CT,Li CY,Tan BC

    更新日期:2019-05-01 00:00:00

  • A short synthetic peptide inhibits signal transduction, migration and angiogenesis mediated by Tie2 receptor.

    abstract::Tie2, an endothelial cell-specific receptor kinase, has an important role in tumour angiogenesis. In an attempt to identify peptides that specifically interact with and block the Tie2 pathway, a phage-displayed peptide library was screened on a recombinant Tie2 receptor. One peptide, NLLMAAS, completely abolished the ...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/sj.embor.7400100

    authors: Tournaire R,Simon MP,le Noble F,Eichmann A,England P,Pouysségur J

    更新日期:2004-03-01 00:00:00

  • MITRAC15/COA1 promotes mitochondrial translation in a ND2 ribosome-nascent chain complex.

    abstract::The mitochondrial genome encodes for thirteen core subunits of the oxidative phosphorylation system. These proteins assemble with imported proteins in a modular manner into stoichiometric enzyme complexes. Assembly factors assist in these biogenesis processes by providing co-factors or stabilizing transient assembly s...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.201948833

    authors: Wang C,Richter-Dennerlein R,Pacheu-Grau D,Liu F,Zhu Y,Dennerlein S,Rehling P

    更新日期:2020-01-07 00:00:00

  • Nanoscale spatial induction of ultraviolet photoproducts in cellular DNA by three-photon near-infrared absorption.

    abstract::The high-resolution spatial induction of ultraviolet (UV) photoproducts in mammalian cellular DNA is a goal of many scientists who study UV damage and repair. Here we describe how UV photoproducts can be induced in cellular DNA within nanometre dimensions by near-diffraction-limited 750 nm infrared laser radiation. Th...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/sj.embor.7400028

    authors: Meldrum RA,Botchway SW,Wharton CW,Hirst GJ

    更新日期:2003-12-01 00:00:00

  • Trehalose-6-phosphate signaling regulates thermoresponsive hypocotyl growth in Arabidopsis thaliana.

    abstract::Growth plasticity is a key mechanism by which plants adapt to the ever-changing environmental conditions. Since growth is a high-energy-demanding and irreversible process, it is expected to be regulated by the integration of endogenous energy status as well as environmental conditions. Here, we show that trehalose-6-p...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.201947828

    authors: Hwang G,Kim S,Cho JY,Paik I,Kim JI,Oh E

    更新日期:2019-10-04 00:00:00

  • The role of nuclear pores in gene regulation, development and disease.

    abstract::Nuclear-pore complexes (NPCs) are large protein channels that span the nuclear envelope (NE), which is a double membrane that encloses the nuclear genome of eukaryotes. Each of the typically 2,000-4,000 pores in the NE of vertebrate cells is composed of multiple copies of 30 different proteins known as nucleoporins. T...

    journal_title:EMBO reports

    pub_type: 杂志文章,评审

    doi:10.1038/embor.2009.147

    authors: Capelson M,Hetzer MW

    更新日期:2009-07-01 00:00:00

  • The UBL domain of PLIC-1 regulates aggresome formation.

    abstract::Defects in protein folding and the proteasomal pathway have been linked with many neurodegenerative diseases. PLIC-1 (protein linking IAP to the cytoskeleton) is a ubiquitin-like protein that binds to the ubiquitin-interacting motif (UIM) of the proteasomal subunit S5a. Here, we show that PLIC-1 also binds to the UIM ...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/sj.embor.7400823

    authors: Heir R,Ablasou C,Dumontier E,Elliott M,Fagotto-Kaufmann C,Bedford FK

    更新日期:2006-12-01 00:00:00

  • p53 gain-of-function mutations increase Cdc7-dependent replication initiation.

    abstract::Cancer-associated p53 missense mutants confer gain of function (GOF) and promote tumorigenesis by regulating crucial signaling pathways. However, the role of GOF mutant p53 in regulating DNA replication, a commonly altered pathway in cancer, is less explored. Here, we show that enhanced Cdc7-dependent replication init...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.201643347

    authors: Datta A,Ghatak D,Das S,Banerjee T,Paul A,Butti R,Gorain M,Ghuwalewala S,Roychowdhury A,Alam SK,Das P,Chatterjee R,Dasgupta M,Panda CK,Kundu GC,Roychoudhury S

    更新日期:2017-11-01 00:00:00

  • Potent degradation of neuronal miRNAs induced by highly complementary targets.

    abstract::MicroRNAs (miRNAs) regulate target mRNAs by silencing them. Reciprocally, however, target mRNAs can also modulate miRNA stability. Here, we uncover a remarkable efficacy of target RNA-directed miRNA degradation (TDMD) in rodent primary neurons. Coincident with degradation, and while still bound to Argonaute, targeted ...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.201540078

    authors: de la Mata M,Gaidatzis D,Vitanescu M,Stadler MB,Wentzel C,Scheiffele P,Filipowicz W,Großhans H

    更新日期:2015-04-01 00:00:00

  • Regulation of nucleolar signalling to p53 through NEDDylation of L11.

    abstract::Several studies have shown that ribosomal proteins (RPs) are important mediators of p53 activation in response to nucleolar disruption; however, the pathways that control this signalling function of RPs are currently unknown. We have recently shown that RPs are targets for the ubiquitin-like molecule NEDD8, and that N...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/embor.2009.178

    authors: Sundqvist A,Liu G,Mirsaliotis A,Xirodimas DP

    更新日期:2009-10-01 00:00:00

  • Rational design of RAR-selective ligands revealed by RARbeta crystal stucture.

    abstract::The crystal structure of the ligand-binding domain of RARbeta, a suspect tumour suppressor, reveals important features that distinguish it from the two other RAR isotypes. The most striking difference is an extra cavity allowing RARbeta to bind more bulky agonists. Accordingly, we identified a ligand that shows RARbet...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/sj.embor.7400235

    authors: Germain P,Kammerer S,Pérez E,Peluso-Iltis C,Tortolani D,Zusi FC,Starrett J,Lapointe P,Daris JP,Marinier A,de Lera AR,Rochel N,Gronemeyer H

    更新日期:2004-09-01 00:00:00

  • Progressive dosage compensation during Drosophila embryogenesis is reflected by gene arrangement.

    abstract::In Drosophila melanogaster males, X-chromosome monosomy is compensated by chromosome-wide transcription activation. We found that complete dosage compensation during embryogenesis takes surprisingly long and is incomplete even after 10 h of development. Although the activating dosage compensation complex (DCC) associa...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.201948138

    authors: Prayitno K,Schauer T,Regnard C,Becker PB

    更新日期:2019-08-01 00:00:00

  • A conserved element in Myc that negatively regulates its proapoptotic activity.

    abstract::Myc is an oncoprotein transcription factor that promotes cell proliferation and apoptosis. Analysis of highly conserved elements within vertebrate Myc proteins has been instrumental in defining the functions of the Myc protein. Here, we probe the role of a highly conserved, but little studied, element within the centr...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/sj.embor.7400333

    authors: Herbst A,Hemann MT,Tworkowski KA,Salghetti SE,Lowe SW,Tansey WP

    更新日期:2005-02-01 00:00:00

  • Codon bias confers stability to human mRNAs.

    abstract::Codon bias has been implicated as one of the major factors contributing to mRNA stability in several model organisms. However, the molecular mechanisms of codon bias on mRNA stability remain unclear in humans. Here, we show that human cells possess a mechanism to modulate RNA stability through a unique codon bias. Bio...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.201948220

    authors: Hia F,Yang SF,Shichino Y,Yoshinaga M,Murakawa Y,Vandenbon A,Fukao A,Fujiwara T,Landthaler M,Natsume T,Adachi S,Iwasaki S,Takeuchi O

    更新日期:2019-11-05 00:00:00

  • ATPase-driven oligomerization of RIG-I on RNA allows optimal activation of type-I interferon.

    abstract::The cytosolic pathogen sensor RIG-I is activated by RNAs with exposed 5'-triphosphate (5'-ppp) and terminal double-stranded structures, such as those that are generated during viral infection. RIG-I has been shown to translocate on dsRNA in an ATP-dependent manner. However, the precise role of the ATPase activity in R...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/embor.2013.102

    authors: Patel JR,Jain A,Chou YY,Baum A,Ha T,García-Sastre A

    更新日期:2013-09-01 00:00:00

  • Specific inhibition of gene expression using a stably integrated, inducible small-interfering-RNA vector.

    abstract::We have designed a doxycycline-regulated form of the H1 promoter of RNA polymerase III that allows the inducible knockdown of gene expression by small interfering RNAs (siRNAs). As a proof-of-principle, we have targeted beta-catenin in colorectal cancer (CRC) cells. T-cell factor (TCF) target-gene expression is induce...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/sj.embor.embor865

    authors: van de Wetering M,Oving I,Muncan V,Pon Fong MT,Brantjes H,van Leenen D,Holstege FC,Brummelkamp TR,Agami R,Clevers H

    更新日期:2003-06-01 00:00:00

  • Sex and sugar in yeast: two distinct GPCR systems.

    abstract::Although eukaryotic G-protein coupled receptor (GPCR) systems are well known for their ability to detect and mediate rapid responses to extracellular signals, the full range of stimuli to which they respond may not yet have been identified. Activation of GPCRs by hormones, pheromones, odorants, neurotransmitters, ligh...

    journal_title:EMBO reports

    pub_type: 杂志文章,评审

    doi:10.1093/embo-reports/kve132

    authors: Versele M,Lemaire K,Thevelein JM

    更新日期:2001-07-01 00:00:00

  • The 18S rRNA m6 A methyltransferase METTL5 promotes mouse embryonic stem cell differentiation.

    abstract::RNA modifications represent a novel layer of regulation of gene expression. Functional experiments revealed that N6 -methyladenosine (m6 A) on messenger RNA (mRNA) plays critical roles in cell fate determination and development. m6 A mark also resides in the decoding center of 18S ribosomal RNA (rRNA); however, the bi...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.201949863

    authors: Xing M,Liu Q,Mao C,Zeng H,Zhang X,Zhao S,Chen L,Liu M,Shen B,Guo X,Ma H,Chen H,Zhang J

    更新日期:2020-10-05 00:00:00

  • Signalling in space and time: systems dynamics of intracellular communication.

    abstract::The second edition of the EMBO Spatial meeting took place in May 2011 in Engelberg, Switzerland. Although the work presented at the meeting covered a challengingly broad range of topics, it accomplished the rare goal of promoting interactions between cell biologists, neuroscientists, systems biologists and mathematici...

    journal_title:EMBO reports

    pub_type:

    doi:10.1038/embor.2011.169

    authors: Tzlil S,Kuruvilla R

    更新日期:2011-09-01 00:00:00

  • Towards a small animal model for hepatitis C.

    abstract::Hepatitis C virus (HCV) causes chronic liver disease and affects an estimated 3% of the world's population. Options for the prevention or therapy of HCV infection are limited; there is no vaccine and the nonspecific, interferon-based treatments now in use are frequently ineffective and have significant side effects. A...

    journal_title:EMBO reports

    pub_type: 杂志文章,评审

    doi:10.1038/embor.2009.223

    authors: Ploss A,Rice CM

    更新日期:2009-11-01 00:00:00

  • Urm1 at the crossroad of modifications. 'Protein Modifications: Beyond the Usual Suspects' Review Series.

    abstract::The ubiquitin-like protein Urm1 can be covalently conjugated to other proteins, such as the yeast thioredoxin peroxidase protein Ahp1p, through a mechanism involving the ubiquitin E1-like enzyme Uba4. Recent findings have revealed a second function of Urm1 as a sulphur carrier in the thiolation of eukaryotic cytoplasm...

    journal_title:EMBO reports

    pub_type: 杂志文章,评审

    doi:10.1038/embor.2008.209

    authors: Pedrioli PG,Leidel S,Hofmann K

    更新日期:2008-12-01 00:00:00

  • Reconsidering the evolution of eukaryotic selenoproteins: a novel nonmammalian family with scattered phylogenetic distribution.

    abstract::While the genome sequence and gene content are available for an increasing number of organisms, eukaryotic selenoproteins remain poorly characterized. The dual role of the UGA codon confounds the identification of novel selenoprotein genes. Here, we describe a comparative genomics approach that relies on the genome-wi...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/sj.embor.7400036

    authors: Castellano S,Novoselov SV,Kryukov GV,Lescure A,Blanco E,Krol A,Gladyshev VN,Guigó R

    更新日期:2004-01-01 00:00:00

  • The dichotomy of yield and draught resistance: Translation challenges from basic research to crop adaptation to climate change.

    abstract::Global climate change and the increasing human population require crop varieties with higher yield and draught resistance. But meeting both goals is not an easy task for breeders and plant science. ...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.15252/embr.202051598

    authors: Moshelion M

    更新日期:2020-11-29 00:00:00

  • MAPL is a new mitochondrial SUMO E3 ligase that regulates mitochondrial fission.

    abstract::The modification of proteins by the small ubiquitin-like modifier (SUMO) is known to regulate an increasing array of cellular processes. SUMOylation of the mitochondrial fission GTPase dynamin-related protein 1 (DRP1) stimulates mitochondrial fission, suggesting that SUMOylation has an important function in mitochondr...

    journal_title:EMBO reports

    pub_type: 杂志文章

    doi:10.1038/embor.2009.86

    authors: Braschi E,Zunino R,McBride HM

    更新日期:2009-07-01 00:00:00