SWAP-70 identifies a transitional subset of actin filaments in motile cells.

Abstract:

:Functionally different subsets of actin filament arrays contribute to cellular organization and motility. We report the identification of a novel subset of loose actin filament arrays through regulated association with the widely expressed protein SWAP-70. These loose actin filament arrays were commonly located behind protruding lamellipodia and membrane ruffles. Visualization of these loose actin filament arrays was dependent on lamellipodial protrusion and the binding of the SWAP-70 PH-domain to a 3'-phosphoinositide. SWAP-70 with a functional pleckstrin homology-domain lacking the C-terminal 60 residues was targeted to the area of the loose actin filament arrays, but it did not associate with actin filaments. The C-terminal 60 residues were sufficient for actin filament association, but they provided no specificity for the subset of loose actin filament arrays. These results identify SWAP-70 as a phosphoinositide 3-kinase signaling-dependent marker for a distinct, hitherto unrecognized, array of actin filaments. Overexpression of SWAP-70 altered the actin organization and lamellipodial morphology. These alterations were dependent on a proper subcellular targeting of SWAP-70. We propose that SWAP-70 regulates the actin cytoskeleton as an effector or adaptor protein in response to agonist stimulated phosphatidylinositol (3,4)-bisphosphate production and cell protrusion.

journal_name

Mol Biol Cell

authors

Hilpelä P,Oberbanscheidt P,Hahne P,Hund M,Kalhammer G,Small JV,Bähler M

doi

10.1091/mbc.e03-01-0043

keywords:

subject

Has Abstract

pub_date

2003-08-01 00:00:00

pages

3242-53

issue

8

eissn

1059-1524

issn

1939-4586

pii

E03-01-0043

journal_volume

14

pub_type

杂志文章
  • Association of human DEAD box protein DDX1 with a cleavage stimulation factor involved in 3'-end processing of pre-MRNA.

    abstract::DEAD box proteins are putative RNA helicases that function in all aspects of RNA metabolism, including translation, ribosome biogenesis, and pre-mRNA splicing. Because many processes involving RNA metabolism are spatially organized within the cell, we examined the subcellular distribution of a human DEAD box protein, ...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.12.10.3046

    authors: Bléoo S,Sun X,Hendzel MJ,Rowe JM,Packer M,Godbout R

    更新日期:2001-10-01 00:00:00

  • Mso1p regulates membrane fusion through interactions with the putative N-peptide-binding area in Sec1p domain 1.

    abstract::Sec1p/Munc18 (SM) family proteins regulate SNARE complex function in membrane fusion through their interactions with syntaxins. In addition to syntaxins, only a few SM protein interacting proteins are known and typically, their binding modes with SM proteins are poorly characterized. We previously identified Mso1p as ...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.e09-07-0546

    authors: Weber M,Chernov K,Turakainen H,Wohlfahrt G,Pajunen M,Savilahti H,Jäntti J

    更新日期:2010-04-15 00:00:00

  • Cdc28 tyrosine phosphorylation and the morphogenesis checkpoint in budding yeast.

    abstract::A morphogenesis checkpoint in budding yeast delays nuclear division (and subsequent cell cycle progression) in cells that have failed to make a bud. We show that the ability of this checkpoint to delay nuclear division requires the SWE1 gene, encoding a protein kinase that inhibits the master cell cycle regulatory kin...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.7.11.1657

    authors: Sia RA,Herald HA,Lew DJ

    更新日期:1996-11-01 00:00:00

  • Chironomus tentans-repressor splicing factor represses SR protein function locally on pre-mRNA exons and is displaced at correct splice sites.

    abstract::Chironomus tentans-repressor splicing factor (Ct-RSF) represses the activation of splicing by SR proteins in vitro. Ct-RSF colocalizes with the Ser-Arg-rich (SR) protein hrp45 in interchromatin granule clusters and coimmunoprecipitates with hrp45 in nuclear extracts. Ct-RSF and hrp45 can also interact directly in vitr...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.e05-04-0339

    authors: Björk P,Wetterberg-Strandh I,Baurén G,Wieslander L

    更新日期:2006-01-01 00:00:00

  • Transfection of choanoflagellates illuminates their cell biology and the ancestry of animal septins.

    abstract::As the closest living relatives of animals, choanoflagellates offer unique insights into animal origins and core mechanisms underlying animal cell biology. However, unlike traditional model organisms, such as yeast, flies, and worms, choanoflagellates have been refractory to DNA delivery methods for expressing foreign...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E18-08-0514

    authors: Booth DS,Szmidt-Middleton H,King N

    更新日期:2018-12-01 00:00:00

  • Rab GDI: a solubilizing and recycling factor for rab9 protein.

    abstract::Rab proteins are thought to function in the processes by which transport vesicles identify and/or fuse with their respective target membranes. The bulk of these proteins are membrane associated, but a measurable fraction can be found in the cytosol. The cytosolic forms of rab3A, rab11, and Sec4 occur as equimolar comp...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.4.4.425

    authors: Soldati T,Riederer MA,Pfeffer SR

    更新日期:1993-04-01 00:00:00

  • Transforming growth factor beta(1) selectively inhibits the cyclic AMP-dependent proliferation of primary thyroid epithelial cells by preventing the association of cyclin D3-cdk4 with nuclear p27(kip1).

    abstract::Dog thyroid epithelial cells in primary culture constitute a physiologically relevant model of positive control of DNA synthesis initiation and G0-S prereplicative phase progression by cAMP as a second messenger for thyrotropin (thyroid-stimulating hormone [TSH]). As previously shown in this system, the cAMP-dependent...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.11.3.1061

    authors: Depoortere F,Pirson I,Bartek J,Dumont JE,Roger PP

    更新日期:2000-03-01 00:00:00

  • Estrogen regulates histone deacetylases to prevent cardiac hypertrophy.

    abstract::The development and progression of cardiac hypertrophy often leads to heart failure and death, and important modulators of hypertrophy include the histone deacetylase proteins (HDACs). Estrogen inhibits cardiac hypertrophy and progression in animal models and humans. We therefore investigated the influence of 17-β-est...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E13-08-0444

    authors: Pedram A,Razandi M,Narayanan R,Dalton JT,McKinsey TA,Levin ER

    更新日期:2013-12-01 00:00:00

  • GRP78 is a novel receptor initiating a vascular barrier protective response to oxidized phospholipids.

    abstract::Vascular integrity and the maintenance of blood vessel continuity are fundamental features of the circulatory system maintained through endothelial cell-cell junctions. Defects in the endothelial barrier become an initiating factor in several pathologies, including ischemia/reperfusion, tumor angiogenesis, pulmonary e...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E13-12-0743

    authors: Birukova AA,Singleton PA,Gawlak G,Tian X,Mirzapoiazova T,Mambetsariev B,Dubrovskyi O,Oskolkova OV,Bochkov VN,Birukov KG

    更新日期:2014-07-01 00:00:00

  • In vivo dynamics of Rac-membrane interactions.

    abstract::The small GTPase Rac cycles between the membrane and the cytosol as it is activated by nucleotide exchange factors (GEFs) and inactivated by GTPase-activating proteins (GAPs). Solubility in the cytosol is conferred by binding of Rac to guanine-nucleotide dissociation inhibitors (GDIs). To analyze the in vivo dynamics ...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.e06-01-0005

    authors: Moissoglu K,Slepchenko BM,Meller N,Horwitz AF,Schwartz MA

    更新日期:2006-06-01 00:00:00

  • Endoplasmic reticulum and Golgi localization sequences for mammalian target of rapamycin.

    abstract::Mammalian target of rapamycin (mTOR) forms two complexes, mTORC1 and mTORC2, that play central roles in cell growth and functions. Only mTORC1 is directly inhibited by the immunosuppressive drug rapamycin. Despite recent progress in identifying new components and functions of the mTOR pathway, relatively little is kno...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.e06-05-0406

    authors: Liu X,Zheng XF

    更新日期:2007-03-01 00:00:00

  • The SNAP-25 linker as an adaptation toward fast exocytosis.

    abstract::The assembly of four soluble N-ethylmaleimide-sensitive factor attachment protein receptor domains into a complex is essential for membrane fusion. In most cases, the four SNARE-domains are encoded by separate membrane-targeted proteins. However, in the exocytotic pathway, two SNARE-domains are present in one protein,...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.e07-12-1218

    authors: Nagy G,Milosevic I,Mohrmann R,Wiederhold K,Walter AM,Sørensen JB

    更新日期:2008-09-01 00:00:00

  • The Cox3p assembly module of yeast cytochrome oxidase.

    abstract::Yeast cytochrome oxidase (COX) was previously inferred to assemble from three modules, each containing one of the three mitochondrially encoded subunits and a different subset of the eight nuclear gene products that make up this respiratory complex. Pull-down assays of pulse-labeled mitochondria enabled us to characte...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E13-10-0575

    authors: Su CH,McStay GP,Tzagoloff A

    更新日期:2014-04-01 00:00:00

  • Multivalent electrostatic microtubule interactions of synthetic peptides are sufficient to mimic advanced MAP-like behavior.

    abstract::Microtubule-associated proteins (MAPs) are a functionally highly diverse class of proteins that help to adjust the shape and function of the microtubule cytoskeleton in space and time. For this purpose, MAPs structurally support microtubules, modulate their dynamic instability, or regulate the activity of associated m...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E19-05-0247

    authors: Drechsler H,Xu Y,Geyer VF,Zhang Y,Diez S

    更新日期:2019-11-15 00:00:00

  • Rsp5 and Mdm30 reshape the mitochondrial network in response to age-induced vacuole stress.

    abstract::Mitochondrial decline is a hallmark of aging, and cells are equipped with many systems to regulate mitochondrial structure and function in response to stress and metabolic alterations. Here, using budding yeast, we identify a proteolytic pathway that contributes to alterations in mitochondrial structure in aged cells ...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E19-02-0094

    authors: Goodrum JM,Lever AR,Coody TK,Gottschling DE,Hughes AL

    更新日期:2019-08-01 00:00:00

  • Cholesterol transport from late endosomes to the Golgi regulates t-SNARE trafficking, assembly, and function.

    abstract::Cholesterol regulates plasma membrane (PM) association and functioning of syntaxin-4 and soluble N-ethylmaleimide-sensitive fusion protein 23 (SNAP23) in the secretory pathway. However, the molecular mechanism and cellular cholesterol pools that determine the localization and assembly of these target membrane SNAP rec...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E11-04-0332

    authors: Reverter M,Rentero C,de Muga SV,Alvarez-Guaita A,Mulay V,Cairns R,Wood P,Monastyrskaya K,Pol A,Tebar F,Blasi J,Grewal T,Enrich C

    更新日期:2011-11-01 00:00:00

  • The LC7 light chains of Chlamydomonas flagellar dyneins interact with components required for both motor assembly and regulation.

    abstract::Members of the LC7/Roadblock family of light chains (LCs) have been found in both cytoplasmic and axonemal dyneins. LC7a was originally identified within Chlamydomonas outer arm dynein and associates with this motor's cargo-binding region. We describe here a novel member of this protein family, termed LC7b that is als...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.e04-06-0461

    authors: DiBella LM,Sakato M,Patel-King RS,Pazour GJ,King SM

    更新日期:2004-10-01 00:00:00

  • Temporary disruption of the plasma membrane is required for c-fos expression in response to mechanical stress.

    abstract::Mechanically stressed cells display increased levels of fos message and protein. Although the intracellular signaling pathways responsible for FOS induction have been extensively characterized, we still do not understand the nature of the primary cell mechanotransduction event responsible for converting an externally ...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.10.4.1247

    authors: Grembowicz KP,Sprague D,McNeil PL

    更新日期:1999-04-01 00:00:00

  • PKC-mediated phosphorylation of nuclear lamins at a single serine residue regulates interphase nuclear size in Xenopus and mammalian cells.

    abstract::How nuclear size is regulated is a fundamental cell-biological question with relevance to cancers, which often exhibit enlarged nuclei. We previously reported that conventional protein kinase C (cPKC) contributes to nuclear size reductions that occur during early Xenopus development. Here we report that PKC-mediated p...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E16-11-0786

    authors: Edens LJ,Dilsaver MR,Levy DL

    更新日期:2017-05-15 00:00:00

  • Vacuole-mediated selective regulation of TORC1-Sch9 signaling following oxidative stress.

    abstract::Target of rapamycin complex 1 (TORC1) is a central cellular signaling coordinator that allows eukaryotic cells to adapt to the environment. In the budding yeast, Saccharomyces cerevisiae, TORC1 senses nitrogen and various stressors and modulates proteosynthesis, nitrogen uptake and metabolism, stress responses, and au...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E17-09-0553

    authors: Takeda E,Jin N,Itakura E,Kira S,Kamada Y,Weisman LS,Noda T,Matsuura A

    更新日期:2018-02-15 00:00:00

  • Physicochemical mechanotransduction alters nuclear shape and mechanics via heterochromatin formation.

    abstract::The nucleus houses, organizes, and protects chromatin to ensure genome integrity and proper gene expression, but how the nucleus adapts mechanically to changes in the extracellular environment is poorly understood. Recent studies have revealed that extracellular physical stresses induce chromatin compaction via mechan...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E19-05-0286-T

    authors: Stephens AD,Liu PZ,Kandula V,Chen H,Almassalha LM,Herman C,Backman V,O'Halloran T,Adam SA,Goldman RD,Banigan EJ,Marko JF

    更新日期:2019-06-19 00:00:00

  • Effects of integrin-mediated cell adhesion on plasma membrane lipid raft components and signaling.

    abstract::Anchorage dependence of cell growth, which is mediated by multiple integrin-regulated signaling pathways, is a key defense against cancer metastasis. Detachment of cells from the extracellular matrix triggers caveolin-1-dependent internalization of lipid raft components, which mediates suppression of Rho GTPases, Erk,...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E11-04-0361

    authors: Norambuena A,Schwartz MA

    更新日期:2011-09-01 00:00:00

  • Nse1-dependent recruitment of Smc5/6 to lesion-containing loci contributes to the repair defects of mutant complexes.

    abstract::Of the three structural maintenance of chromosomes (SMC) complexes, Smc5/6 remains the most poorly understood. Genetic studies have shown that Smc5/6 mutants are defective in homologous recombination (HR), and consistent with this, Smc5/6 is enriched at lesions. However, Smc5/6 is essential for viability, but HR is no...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E11-03-0272

    authors: Tapia-Alveal C,O'Connell MJ

    更新日期:2011-12-01 00:00:00

  • In vivo evidence for cooperation of Mia40 and Erv1 in the oxidation of mitochondrial proteins.

    abstract::The intermembrane space of mitochondria accommodates the essential mitochondrial intermembrane space assembly (MIA) machinery that catalyzes oxidative folding of proteins. The disulfide bond formation pathway is based on a relay of reactions involving disulfide transfer from the sulfhydryl oxidase Erv1 to Mia40 and fr...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E12-05-0358

    authors: Böttinger L,Gornicka A,Czerwik T,Bragoszewski P,Loniewska-Lwowska A,Schulze-Specking A,Truscott KN,Guiard B,Milenkovic D,Chacinska A

    更新日期:2012-10-01 00:00:00

  • An aspartyl cathepsin, CTH3, is essential for proprotein processing during secretory granule maturation in Tetrahymena thermophila.

    abstract::In Tetrahymena thermophila, peptides secreted via dense-core granules, called mucocysts, are generated by proprotein processing. We used expression profiling to identify candidate processing enzymes, which localized as cyan fluorescent protein fusions to mucocysts. Of note, the aspartyl cathepsin Cth3p plays a key rol...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E14-03-0833

    authors: Kumar S,Briguglio JS,Turkewitz AP

    更新日期:2014-08-15 00:00:00

  • Alpha5beta1 integrin controls cyclin D1 expression by sustaining mitogen-activated protein kinase activity in growth factor-treated cells.

    abstract::Cyclin D1 expression is jointly regulated by growth factors and cell adhesion to the extracellular matrix in many cell types. Growth factors are thought to regulate cyclin D1 expression because they stimulate sustained extracellular signal-regulated kinase (ERK) activity. However, we show here that growth factors indu...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.10.10.3197

    authors: Roovers K,Davey G,Zhu X,Bottazzi ME,Assoian RK

    更新日期:1999-10-01 00:00:00

  • The RHO1-specific GTPase-activating protein LRG1 regulates polar tip growth in parallel to Ndr kinase signaling in Neurospora.

    abstract::Regulation of Rho GTPase signaling is critical for cell shape determination and polarity. Here, we investigated the role of LRG1, a novel member of the GTPase-activating proteins (GAPs) of Neurospora crassa. LRG1 is essential for apical tip extension and to restrict excessive branch formation in subapical regions of t...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.e07-12-1266

    authors: Vogt N,Seiler S

    更新日期:2008-11-01 00:00:00

  • The HIF target ATG9A is essential for epithelial barrier function and tight junction biogenesis.

    abstract::Intestinal epithelial cells (IECs) exist in a metabolic state of low oxygen tension termed "physiologic hypoxia." An important factor in maintaining intestinal homeostasis is the transcription factor hypoxia-inducible factor (HIF), which is stabilized under hypoxic conditions and mediates IEC homeostatic responses to ...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.E20-05-0291

    authors: Dowdell AS,Cartwright IM,Goldberg MS,Kostelecky R,Ross T,Welch N,Glover LE,Colgan SP

    更新日期:2020-09-15 00:00:00

  • Essential features of the class V myosin from budding yeast for ASH1 mRNA transport.

    abstract::Myo4p, a single-headed and nonprocessive class V myosin in budding yeast, transports >20 different mRNAs asymmetrically to the bud. Here, we determine the features of the Myo4p motor that are necessary for correct localization of ASH1 mRNA to the daughter cell, a process that also requires the adapter protein She3p an...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.e08-08-0801

    authors: Bookwalter CS,Lord M,Trybus KM

    更新日期:2009-07-01 00:00:00

  • Genetic analysis of lysosomal trafficking in Caenorhabditis elegans.

    abstract::The intestinal cells of Caenorhabditis elegans embryos contain prominent, birefringent gut granules that we show are lysosome-related organelles. Gut granules are labeled by lysosomal markers, and their formation is disrupted in embryos depleted of AP-3 subunits, VPS-16, and VPS-41. We define a class of gut granule lo...

    journal_title:Molecular biology of the cell

    pub_type: 杂志文章

    doi:10.1091/mbc.e05-01-0060

    authors: Hermann GJ,Schroeder LK,Hieb CA,Kershner AM,Rabbitts BM,Fonarev P,Grant BD,Priess JR

    更新日期:2005-07-01 00:00:00