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  • Recombinant Fusion Proteins/metabolism  (7)
  • American Association for the Advancement of Science (AAAS)  (7)
  • American Physical Society (APS)
  • Public Library of Science
  • 2000-2004  (7)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (7)
  • American Physical Society (APS)
  • Public Library of Science
Years
Year
  • 1
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    Two-amino acid molecular switch in an epithelial morphogen that regulates binding to two distinct receptors (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-10-20
    Description: Ectodysplasin, a member of the tumor necrosis factor family, is encoded by the anhidrotic ectodermal dysplasia (EDA) gene. Mutations in EDA give rise to a clinical syndrome characterized by loss of hair, sweat glands, and teeth. EDA-A1 and EDA-A2 are two isoforms of ectodysplasin that differ only by an insertion of two amino acids. This insertion functions to determine receptor binding specificity, such that EDA-A1 binds only the receptor EDAR, whereas EDA-A2 binds only the related, but distinct, X-linked ectodysplasin-A2 receptor (XEDAR). In situ binding and organ culture studies indicate that EDA-A1 and EDA-A2 are differentially expressed and play a role in epidermal morphogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yan, M -- Wang, L C -- Hymowitz, S G -- Schilbach, S -- Lee, J -- Goddard, A -- de Vos, A M -- Gao, W Q -- Dixit, V M -- New York, N.Y. -- Science. 2000 Oct 20;290(5491):523-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Oncology, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11039935" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Binding Sites ; Cell Line ; DNA-Binding Proteins/metabolism ; Ectodermal Dysplasia/genetics ; Ectodysplasins ; Epidermis/embryology/*metabolism ; Humans ; *I-kappa B Proteins ; In Situ Hybridization ; Ligands ; Membrane Proteins/*chemistry/*metabolism ; Mice ; Models, Molecular ; Molecular Sequence Data ; Morphogenesis ; NF-kappa B/metabolism ; Phosphorylation ; Point Mutation ; Protein Conformation ; Proteins/metabolism ; Receptors, Cell Surface/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; TNF Receptor-Associated Factor 6 ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Dynamic disruptions in nuclear envelope architecture and integrity induced by HIV-1 Vpr (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-11-03
    Description: Human immunodeficiency virus-1 (HIV-1) Vpr expression halts the proliferation of human cells at or near the G2 cell-cycle checkpoint. The transition from G2 to mitosis is normally controlled by changes in the state of phosphorylation and subcellular compartmentalization of key cell-cycle regulatory proteins. In studies of the intracellular trafficking of these regulators, we unexpectedly found that wild-type Vpr, but not Vpr mutants impaired for G2 arrest, induced transient, localized herniations in the nuclear envelope (NE). These herniations were associated with defects in the nuclear lamina. Intermittently, these herniations ruptured, resulting in the mixing of nuclear and cytoplasmic components. These Vpr-induced NE changes probably contribute to the observed cell-cycle arrest.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Noronha, C M -- Sherman, M P -- Lin, H W -- Cavrois, M V -- Moir, R D -- Goldman, R D -- Greene, W C -- KO8 AI01866/AI/NIAID NIH HHS/ -- P30 MH59037/MH/NIMH NIH HHS/ -- R01 AI145234/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2001 Nov 2;294(5544):1105-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Gladstone Institute of Virology and Immunology, Department of Medicine, University of California, San Francisco, CA 94103, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11691994" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Cell Cycle Proteins/metabolism ; Cell Nucleus/*metabolism/virology ; Cyclin B/metabolism ; Cyclin B1 ; Cytoplasm/metabolism ; *G2 Phase ; Gene Products, vpr/genetics/*physiology ; HIV-1/*physiology ; HeLa Cells ; Humans ; *Lamin Type B ; Lamins ; Macrophages/virology ; Microscopy, Fluorescence ; Microscopy, Video ; Mitosis ; Mutation ; Nuclear Envelope/*metabolism/ultrastructure ; Nuclear Pore Complex Proteins/metabolism ; Nuclear Proteins/metabolism ; Protein-Tyrosine Kinases/metabolism ; Recombinant Fusion Proteins/metabolism ; Transfection ; Virus Integration ; cdc25 Phosphatases/metabolism ; vpr Gene Products, Human Immunodeficiency Virus
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    VirB/D4-dependent protein translocation from Agrobacterium into plant cells (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-11-04
    Description: The Agrobacterium VirB/D4 transport system mediates the transfer of a nucleoprotein T complex into plant cells, leading to crown gall disease. In addition, several Virulence proteins must somehow be transported to fulfill a function in planta. Here, we used fusions between Cre recombinase and VirE2 or VirF to directly demonstrate protein translocation into plant cells. Transport of the proteins was monitored by a Cre-mediated in planta recombination event resulting in a selectable phenotype and depended on the VirB/D4 transport system but did not require transferred DNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vergunst, A C -- Schrammeijer, B -- den Dulk-Ras, A -- de Vlaam, C M -- Regensburg-Tuink, T J -- Hooykaas, P J -- New York, N.Y. -- Science. 2000 Nov 3;290(5493):979-82.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Plant Sciences, Leiden University, Clusius Laboratory, Wassenaarseweg 64, 2333 AL, Leiden, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11062129" target="_blank"〉PubMed〈/a〉
    Keywords: Agrobacterium tumefaciens/genetics/*metabolism/pathogenicity ; Arabidopsis/genetics/*metabolism/microbiology ; Bacterial Proteins/*metabolism ; DNA, Bacterial/genetics/metabolism ; DNA-Binding Proteins/*metabolism ; Drug Resistance ; Integrases/genetics/*metabolism ; *Ion Channels ; Kanamycin/pharmacology ; Plant Roots/metabolism ; Plants, Genetically Modified ; Plasmids ; Polymerase Chain Reaction ; *Protein Transport ; Recombinant Fusion Proteins/metabolism ; *Viral Proteins ; Virulence ; *Virulence Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Docosahexaenoic acid, a ligand for the retinoid X receptor in mouse brain (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-12-16
    Description: The retinoid X receptor (RXR) is a nuclear receptor that functions as a ligand-activated transcription factor. Little is known about the ligands that activate RXR in vivo. Here, we identified a factor in brain tissue from adult mice that activates RXR in cell-based assays. Purification and analysis of the factor by mass spectrometry revealed that it is docosahexaenoic acid (DHA), a long-chain polyunsaturated fatty acid that is highly enriched in the adult mammalian brain. Previous work has shown that DHA is essential for brain maturation, and deficiency of DHA in both rodents and humans leads to impaired spatial learning and other abnormalities. These data suggest that DHA may influence neural function through activation of an RXR signaling pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Urquiza, A M -- Liu, S -- Sjoberg, M -- Zetterstrom, R H -- Griffiths, W -- Sjovall, J -- Perlmann, T -- New York, N.Y. -- Science. 2000 Dec 15;290(5499):2140-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Institute for Cancer Research, Stockholm Branch, Box 240, S-171 77 Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11118147" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Assay ; Brain/growth & development/metabolism ; *Brain Chemistry ; Cell Line ; Chromatography, High Pressure Liquid ; Culture Media, Conditioned ; Dimerization ; Docosahexaenoic Acids/*isolation & purification/*metabolism/pharmacology ; Fatty Acids, Unsaturated/pharmacology ; Histone Acetyltransferases ; Humans ; Ligands ; Male ; Mice ; Nuclear Receptor Coactivator 1 ; Receptors, Retinoic Acid/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Retinoid X Receptors ; Signal Transduction ; Spectrometry, Mass, Electrospray Ionization ; Transcription Factors/genetics/*metabolism ; Transfection ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Amphiphysin 2 (Bin1) and T-tubule biogenesis in muscle (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-08-17
    Description: In striated muscle, the plasma membrane forms tubular invaginations (transverse tubules or T-tubules) that function in depolarization-contraction coupling. Caveolin-3 and amphiphysin were implicated in their biogenesis. Amphiphysin isoforms have a putative role in membrane deformation at endocytic sites. An isoform of amphiphysin 2 concentrated at T-tubules induced tubular plasma membrane invaginations when expressed in nonmuscle cells. This property required exon 10, a phosphoinositide-binding module. In developing myotubes, amphiphysin 2 and caveolin-3 segregated in tubular and vesicular portions of the T-tubule system, respectively. These findings support a role of the bilayer-deforming properties of amphiphysin at T-tubules and, more generally, a physiological role of amphiphysin in membrane deformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Eunkyung -- Marcucci, Melissa -- Daniell, Laurie -- Pypaert, Marc -- Weisz, Ora A -- Ochoa, Gian-Carlo -- Farsad, Khashayar -- Wenk, Markus R -- De Camilli, Pietro -- CA46128/CA/NCI NIH HHS/ -- NS36251/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2002 Aug 16;297(5584):1193-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology and Howard Hughes Medical Institute, Yale University School of Medicine, 295 Congress Avenue, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12183633" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CHO Cells ; Caveolin 3 ; Caveolins/metabolism ; Cell Differentiation ; Cell Line ; Cell Membrane/metabolism ; Cell Membrane Structures/metabolism/*ultrastructure ; Cricetinae ; Dynamins ; Exons ; GTP Phosphohydrolases/metabolism ; Liposomes/metabolism ; Mice ; Microscopy, Electron ; Morphogenesis ; *Muscle Development ; Muscle, Skeletal/metabolism/*ultrastructure ; Nerve Tissue Proteins/chemistry/genetics/*metabolism ; Phosphatidylinositol 4,5-Diphosphate/metabolism ; Protein Isoforms ; Protein Structure, Tertiary ; RNA, Small Interfering ; RNA, Untranslated/metabolism ; Recombinant Fusion Proteins/metabolism ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Legionella effectors that promote nonlytic release from protozoa (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-02-28
    Description: Legionella pneumophila, the bacterial agent of legionnaires' disease, replicates intracellularly within a specialized vacuole of mammalian and protozoan host cells. Little is known about the specialized vacuole except that the Icm/Dot type IV secretion system is essential for its formation and maintenance. The Legionella genome database contains two open reading frames encoding polypeptides (LepA and LepB) with predicted coiled-coil regions and weak homology to SNAREs; these are delivered to host cells by an Icm/Dot-dependent mechanism. Analysis of mutant strains suggests that the Lep proteins may enable the Legionella to commandeer a protozoan exocytic pathway for dissemination of the pathogen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, John -- de Felipe, Karim Suwwan -- Clarke, Margaret -- Lu, Hao -- Anderson, O Roger -- Segal, Gil -- Shuman, Howard A -- NIH-R01 AI23549/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2004 Feb 27;303(5662):1358-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, College of Physicians and Surgeons, Columbia University, 701 West 168th Street, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14988561" target="_blank"〉PubMed〈/a〉
    Keywords: Acanthamoeba/*microbiology/physiology/ultrastructure ; Animals ; Bacterial Proteins/genetics/metabolism/*physiology ; Cell Line ; Colony Count, Microbial ; Cyclic AMP/metabolism ; Dictyostelium/*microbiology/physiology/ultrastructure ; Exocytosis ; Genome, Bacterial ; Humans ; Legionella pneumophila/*genetics/growth & development/pathogenicity/*physiology ; Lysosomes/physiology ; Macrophages/microbiology/ultrastructure ; Mutation ; Open Reading Frames ; Phagosomes/physiology ; Recombinant Fusion Proteins/metabolism ; Vacuoles/microbiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Activity-dependent internalization of smoothened mediated by beta-arrestin 2 and GRK2 (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-12-25
    Description: Binding of Sonic Hedgehog (Shh) to Patched (Ptc) relieves the latter's tonic inhibition of Smoothened (Smo), a receptor that spans the cell membrane seven times. This initiates signaling which, by unknown mechanisms, regulates vertebrate developmental processes. We find that two molecules interact with mammalian Smo in an activation-dependent manner: G protein-coupled receptor kinase 2 (GRK2) leads to phosphorylation of Smo, and beta-arrestin 2 fused to green fluorescent protein interacts with Smo. These two processes promote endocytosis of Smo in clathrin-coated pits. Ptc inhibits association of beta-arrestin 2 with Smo, and this inhibition is relieved in cells treated with Shh. A Smo agonist stimulated and a Smo antagonist (cyclopamine) inhibited both phosphorylation of Smo by GRK2 and interaction of beta-arrestin 2 with Smo. beta-Arrestin 2 and GRK2 are thus potential mediators of signaling by activated Smo.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Wei -- Ren, Xiu-Rong -- Nelson, Christopher D -- Barak, Larry S -- Chen, James K -- Beachy, Philip A -- de Sauvage, Frederic -- Lefkowitz, Robert J -- New York, N.Y. -- Science. 2004 Dec 24;306(5705):2257-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA. w.chen@duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15618519" target="_blank"〉PubMed〈/a〉
    Keywords: Arrestins/*metabolism ; Cell Line ; Cell Membrane/*metabolism ; Clathrin/metabolism ; Coated Pits, Cell-Membrane/metabolism ; Cyclic AMP-Dependent Protein Kinases/*metabolism ; Cyclohexylamines/pharmacology ; Cytosol/metabolism ; Dynamins/metabolism ; Endocytosis ; Hedgehog Proteins ; Humans ; Membrane Proteins/metabolism ; Phosphorylation ; Receptors, Cell Surface ; Receptors, G-Protein-Coupled/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Thiophenes/pharmacology ; Trans-Activators/metabolism ; Transfection ; Veratrum Alkaloids/pharmacology ; beta-Adrenergic Receptor Kinases
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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