ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • Signal Transduction  (90)
  • Crystallography, X-Ray
  • Rats
  • American Association for the Advancement of Science (AAAS)  (164)
  • American Meteorological Society
  • PANGAEA
  • 2005-2009
  • 2000-2004  (164)
  • 1995-1999
  • 2003  (164)
Sammlung
Verlag/Herausgeber
  • American Association for the Advancement of Science (AAAS)  (164)
  • American Meteorological Society
  • PANGAEA
Erscheinungszeitraum
  • 2005-2009
  • 2000-2004  (164)
  • 1995-1999
Jahr
  • 1
    Publikationsdatum: 2003-05-10
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brivanlou, Ali H -- Gage, Fred H -- Jaenisch, Rudolf -- Jessell, Thomas -- Melton, Douglas -- Rossant, Janet -- New York, N.Y. -- Science. 2003 May 9;300(5621):913-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rockefeller University, New York, NY 10021, USA. brvnlou@rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12738841" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biological Specimen Banks ; Cell Culture Techniques/methods ; Cell Differentiation ; Cell Division ; *Cell Line ; Culture Media ; Culture Media, Conditioned ; Databases, Factual ; *Embryo Research ; Embryo, Mammalian/*cytology ; Humans ; Quality Control ; Registries ; Research/standards ; Signal Transduction ; Stem Cell Transplantation ; *Stem Cells/cytology/physiology ; Transfection
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Publikationsdatum: 2003-07-12
    Beschreibung: Direct interaction between platelet receptor glycoprotein Ibalpha (GpIbalpha) and thrombin is required for platelet aggregation and activation at sites of vascular injury. Abnormal GpIbalpha-thrombin binding is associated with many pathological conditions,including occlusive arterial thrombosis and bleeding disorders. The crystal structure of the GpIbalpha-thrombin complex at 2.6 angstrom resolution reveals simultaneous interactions of GpIbalpha with exosite I of one thrombin molecule,and with exosite II of a second thrombin molecule. In the crystal lattice,the periodic arrangement of GpIbalpha-thrombin complexes mirrors a scaffold that could serve as a driving force for tight platelet adhesion. The details of these interactions reconcile GpIbalpha-thrombin binding modes that are presently controversial,highlighting two distinct interfaces that are potential targets for development of novel antithrombotic drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dumas, John J -- Kumar, Ravindra -- Seehra, Jasbir -- Somers, William S -- Mosyak, Lidia -- New York, N.Y. -- Science. 2003 Jul 11;301(5630):222-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemical and Screening Sciences, Wyeth, 200 Cambridge Park Drive, Cambridge, MA 02140, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12855811" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Binding Sites ; Blood Platelets/chemistry/physiology ; Crystallization ; Crystallography, X-Ray ; Humans ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Models, Molecular ; Platelet Adhesiveness ; *Platelet Aggregation ; Platelet Glycoprotein GPIb-IX Complex/*chemistry/*metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Thrombin/*chemistry/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-02-04
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Calladine, C R -- Pratap, V -- Chandran, V -- Mizuguchi, K -- Luisi, B F -- New York, N.Y. -- Science. 2003 Jan 31;299(5607):661-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12561825" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Crystallography, X-Ray ; Escherichia coli Proteins/*chemistry ; Glycine/chemistry ; Ion Channels/*chemistry ; *Models, Molecular ; Protein Conformation ; Protein Structure, Secondary
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 4
    Publikationsdatum: 2003-05-06
    Beschreibung: We have used adenosine diphosphate analogs containing electron paramagnetic resonance (EPR) spin moieties and EPR spectroscopy to show that the nucleotide-binding site of kinesin-family motors closes when the motor.diphosphate complex binds to microtubules. Structural analyses demonstrate that a domain movement in the switch 1 region at the nucleotide site, homologous to domain movements in the switch 1 region in the G proteins [heterotrimeric guanine nucleotide-binding proteins], explains the EPR data. The switch movement primes the motor both for the free energy-yielding nucleotide hydrolysis reaction and for subsequent conformational changes that are crucial for the generation of force and directed motion along the microtubule.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Naber, Nariman -- Minehardt, Todd J -- Rice, Sarah -- Chen, Xiaoru -- Grammer, Jean -- Matuska, Marija -- Vale, Ronald D -- Kollman, Peter A -- Car, Roberto -- Yount, Ralph G -- Cooke, Roger -- Pate, Edward -- AR39643/AR/NIAMS NIH HHS/ -- AR42895/AR/NIAMS NIH HHS/ -- DK05915/DK/NIDDK NIH HHS/ -- GM29072/GM/NIGMS NIH HHS/ -- RR1081/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2003 May 2;300(5620):798-801.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of California, San Francisco, CA 94143, USA. naber@itsa.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12730601" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenine Nucleotides/*metabolism ; Adenosine Diphosphate/analogs & derivatives/metabolism ; Adenosine Triphosphate/analogs & derivatives/metabolism ; Animals ; Binding Sites ; Computer Simulation ; Crystallography, X-Ray ; *Drosophila Proteins ; Drosophila melanogaster ; Electron Spin Resonance Spectroscopy ; Humans ; Hydrogen Bonding ; Hydrolysis ; Kinesin/*chemistry/*metabolism ; Microtubules/*metabolism ; Models, Molecular ; Molecular Motor Proteins/*chemistry/*metabolism ; Molecular Probes/metabolism ; Protein Conformation ; Spin Labels
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 5
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-02-01
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hederstedt, Lars -- New York, N.Y. -- Science. 2003 Jan 31;299(5607):671-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Organism Biology, Lund University, SE-22362 Lund, Sweden. lars.hederstedt@cob.lu.se〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12560540" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aerobiosis ; Anaerobiosis ; Binding Sites ; Crystallography, X-Ray ; Electron Transport ; Electron Transport Complex II ; Escherichia coli/*enzymology ; Flavin-Adenine Dinucleotide/metabolism ; Heme/chemistry/metabolism ; Models, Molecular ; Multienzyme Complexes/antagonists & inhibitors/*chemistry/*metabolism ; Oxidation-Reduction ; Oxidoreductases/antagonists & inhibitors/*chemistry/*metabolism ; Protein Conformation ; Protein Structure, Tertiary ; Protein Subunits/chemistry ; Reactive Oxygen Species/metabolism ; Succinate Dehydrogenase/antagonists & inhibitors/*chemistry/*metabolism ; Succinic Acid/metabolism ; Ubiquinone/chemistry/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 6
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-07-05
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heintz, Nathaniel -- New York, N.Y. -- Science. 2003 Jul 4;301(5629):59-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Rockefeller University, New York, NY 10021, USA. heintz@rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12843383" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 14-3-3 Proteins ; Amino Acid Substitution ; Animals ; Ataxin-1 ; Ataxins ; Cell Nucleus/metabolism ; Disease Progression ; Mice ; Mice, Transgenic ; Mutation ; Nerve Tissue Proteins/*chemistry/genetics/*metabolism ; Nuclear Proteins/*chemistry/genetics/*metabolism ; Peptides ; Phosphorylation ; *Protein-Serine-Threonine Kinases ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-akt ; Purkinje Cells/metabolism/ultrastructure ; Signal Transduction ; Spinocerebellar Ataxias/etiology/genetics/pathology/*physiopathology ; *Trinucleotide Repeat Expansion ; Tyrosine 3-Monooxygenase/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 7
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-06-14
    Beschreibung: In eukaryotes, the combinatorial association of sequence-specific DNA binding proteins is essential for transcription. We have used protein arrays to test 492 pairings of a nearly complete set of coiled-coil strands from human basic-region leucine zipper (bZIP) transcription factors. We find considerable partnering selectivity despite the bZIPs' homologous sequences. The interaction data are of high quality, as assessed by their reproducibility, reciprocity, and agreement with previous observations. Biophysical studies in solution support the relative binding strengths observed with the arrays. New associations provide insights into the circadian clock and the unfolded protein response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Newman, John R S -- Keating, Amy E -- New York, N.Y. -- Science. 2003 Jun 27;300(5628):2097-101. Epub 2003 Jun 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12805554" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Basic-Leucine Zipper Transcription Factors ; Chromatography, High Pressure Liquid ; Circadian Rhythm ; Circular Dichroism ; Cyclic AMP Response Element-Binding Protein/chemistry/metabolism ; DNA-Binding Proteins/chemistry/isolation & purification/*metabolism ; Dimerization ; G-Box Binding Factors ; Humans ; *Leucine Zippers ; Peptides/chemistry/isolation & purification/metabolism ; *Protein Array Analysis ; Protein Binding ; Protein Folding ; Protein Structure, Tertiary ; Signal Transduction ; Temperature ; Thermodynamics ; Transcription Factors/*chemistry/isolation & purification/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 8
    Publikationsdatum: 2003-08-16
    Beschreibung: Plants attacked by pathogens rapidly deposit callose, a beta-1,3-glucan, at wound sites. Traditionally, this deposition is thought to reinforce the cell wall and is regarded as a defense response. Surprisingly, here we found that powdery mildew resistant 4 (pmr4), a mutant lacking pathogen-induced callose, became resistant to pathogens, rather than more susceptible. This resistance was due to mutation of a callose synthase, resulting in a loss of the induced callose response. Double-mutant analysis indicated that blocking the salicylic acid (SA) defense signaling pathway was sufficient to restore susceptibility to pmr4 mutants. Thus, callose or callose synthase negatively regulates the SA pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nishimura, Marc T -- Stein, Monica -- Hou, Bi-Huei -- Vogel, John P -- Edwards, Herb -- Somerville, Shauna C -- New York, N.Y. -- Science. 2003 Aug 15;301(5635):969-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Biology, Carnegie Institution, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12920300" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alleles ; Arabidopsis/cytology/genetics/*metabolism/*microbiology ; Ascomycota/*physiology ; Cell Death ; Gene Expression Profiling ; Gene Expression Regulation, Plant ; Genes, Plant ; Glucans/metabolism ; Glucosyltransferases/*genetics/metabolism ; *Membrane Proteins ; Mutation ; Oligonucleotide Array Sequence Analysis ; Phenotype ; *Plant Diseases ; Plant Leaves/metabolism ; Salicylic Acid/*metabolism ; *Schizosaccharomyces pombe Proteins ; Signal Transduction
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 9
    Publikationsdatum: 2003-07-05
    Beschreibung: Raf kinases have been linked to endothelial cell survival. Here, we show that basic fibroblast growth factor (bFGF) and vascular endothelial growth factor (VEGF) differentially activate Raf, resulting in protection from distinct pathways of apoptosis in human endothelial cells and chick embryo vasculature. bFGF activated Raf-1 via p21-activated protein kinase-1 (PAK-1) phosphorylation of serines 338 and 339, resulting in Raf-1 mitochondrial translocation and endothelial cell protection from the intrinsic pathway of apoptosis, independent of the mitogen-activated protein kinase kinase-1 (MEK1). In contrast, VEGF activated Raf-1 via Src kinase, leading to phosphorylation of tyrosines 340 and 341 and MEK1-dependent protection from extrinsic-mediated apoptosis. These findings implicate Raf-1 as a pivotal regulator of endothelial cell survival during angiogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alavi, Alireza -- Hood, John D -- Frausto, Ricardo -- Stupack, Dwayne G -- Cheresh, David A -- CA45726/CA/NCI NIH HHS/ -- CA50286/CA/NCI NIH HHS/ -- CA75924/CA/NCI NIH HHS/ -- P01 CA78045/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2003 Jul 4;301(5629):94-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12843393" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Apoptosis ; Cell Survival ; Cells, Cultured ; Chick Embryo ; Endothelial Growth Factors/pharmacology ; Endothelium, Vascular/*cytology/drug effects ; Enzyme Activation ; Enzyme Inhibitors/pharmacology ; Fibroblast Growth Factor 2/pharmacology ; Flavonoids/pharmacology ; Humans ; Intercellular Signaling Peptides and Proteins/pharmacology ; Lymphokines/pharmacology ; MAP Kinase Kinase 1 ; Mitochondria/metabolism ; Mitogen-Activated Protein Kinase 1/metabolism ; Mitogen-Activated Protein Kinase 3 ; Mitogen-Activated Protein Kinase Kinases/antagonists & inhibitors/metabolism ; Mitogen-Activated Protein Kinases/metabolism ; Neovascularization, Pathologic ; *Neovascularization, Physiologic/drug effects ; Phosphorylation ; Point Mutation ; Protein Transport ; Protein-Serine-Threonine Kinases/antagonists & inhibitors/metabolism ; Proto-Oncogene Proteins B-raf ; Proto-Oncogene Proteins c-raf/chemistry/genetics/*metabolism ; Signal Transduction ; Umbilical Veins ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factors ; p21-Activated Kinases ; src-Family Kinases/antagonists & inhibitors/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 10
    Publikationsdatum: 2003-05-10
    Beschreibung: Multidrug efflux pumps cause serious problems in cancer chemotherapy and treatment of bacterial infections. Yet high-resolution structures of ligand transporter complexes have previously been unavailable. We obtained x-ray crystallographic structures of the trimeric AcrB pump from Escherichia coli with four structurally diverse ligands. The structures show that three molecules of ligands bind simultaneously to the extremely large central cavity of 5000 cubic angstroms, primarily by hydrophobic, aromatic stacking and van der Waals interactions. Each ligand uses a slightly different subset of AcrB residues for binding. The bound ligand molecules often interact with each other, stabilizing the binding.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, Edward W -- McDermott, Gerry -- Zgurskaya, Helen I -- Nikaido, Hiroshi -- Koshland, Daniel E Jr -- AI 09644/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2003 May 9;300(5621):976-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720-3202, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12738864" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Anti-Infective Agents/chemistry/metabolism ; Anti-Infective Agents, Local/chemistry/metabolism ; Binding Sites ; Carrier Proteins/*chemistry/isolation & purification/*metabolism ; Cell Membrane/chemistry ; Chemistry, Physical ; Ciprofloxacin/chemistry/metabolism ; Crystallization ; Crystallography, X-Ray ; Dequalinium/chemistry/metabolism ; Escherichia coli Proteins/*chemistry/isolation & purification/*metabolism ; Ethidium/chemistry/metabolism ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Ligands ; Membrane Proteins/*chemistry/isolation & purification/*metabolism ; Models, Molecular ; Multidrug Resistance-Associated Proteins ; Physicochemical Phenomena ; Protein Binding ; Protein Conformation ; Protein Structure, Quaternary ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Rhodamines/chemistry/metabolism ; Static Electricity
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 11
    Publikationsdatum: 2003-06-28
    Beschreibung: In the mammalian CNS, N-methyl-D-aspartate (NMDA) receptors serve prominent roles in many physiological and pathophysiological processes including pain transmission. For full activation, NMDA receptors require the binding of glycine. It is not known whether the brain uses changes in extracellular glycine to modulate synaptic NMDA responses. Here, we show that synaptically released glycine facilitates NMDA receptor currents in the superficial dorsal horn, an area critically involved in pain processing. During high presynaptic activity, glycine released from inhibitory interneurons escapes the synaptic cleft and reaches nearby NMDA receptors by so-called spillover. In vivo, this process may contribute to the development of inflammatory hyperalgesia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ahmadi, Seifollah -- Muth-Selbach, Uta -- Lauterbach, Andreas -- Lipfert, Peter -- Neuhuber, Winfried L -- Zeilhofer, Hanns Ulrich -- New York, N.Y. -- Science. 2003 Jun 27;300(5628):2094-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Experimentelle und Klinische Pharmakologie und Toxikologie, Universitat Erlangen-Nurnberg, Fahrstrasse 17, D-91054 Erlangen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12829784" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Analgesics/pharmacology ; Animals ; Anterior Horn Cells/drug effects/metabolism ; Diffusion ; Electric Stimulation ; Evoked Potentials/drug effects ; Excitatory Postsynaptic Potentials/drug effects ; Glycine/*metabolism/pharmacology ; In Vitro Techniques ; Interneurons/metabolism ; Neural Inhibition/drug effects ; Opioid Peptides/pharmacology ; Pain Measurement ; Patch-Clamp Techniques ; Posterior Horn Cells/drug effects/*metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/*metabolism ; Serine/pharmacology ; Spinal Cord/drug effects/metabolism ; Synapses/*metabolism ; *Synaptic Transmission/drug effects ; Temperature
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 12
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-03-08
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allen, John F -- New York, N.Y. -- Science. 2003 Mar 7;299(5612):1530-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Biochemistry, Center for Chemistry and Chemical Engineering, Box 124, Lund University, SE-221 00 Lund, Sweden. john.allen@plantbio.lu.se〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12624254" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Algal Proteins/chemistry/genetics/isolation & purification/metabolism ; Animals ; Binding Sites ; Chlamydomonas reinhardtii/*enzymology/genetics/metabolism ; Chlorophyll/metabolism ; Electron Transport ; Fluorescence ; Gene Library ; Light ; Light-Harvesting Protein Complexes ; Models, Biological ; Mutation ; Oxidation-Reduction ; Phosphorylation ; Photosynthesis ; Photosynthetic Reaction Center Complex Proteins/*metabolism ; Plastoquinone/metabolism ; Protein-Serine-Threonine Kinases/chemistry/genetics/*isolation & ; purification/*metabolism ; Signal Transduction ; Thylakoids/*enzymology ; Transcription, Genetic
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 13
    Publikationsdatum: 2003-11-01
    Beschreibung: Mutations in MeCP2, which encodes a protein that has been proposed to function as a global transcriptional repressor, are the cause of Rett syndrome (RT T), an X-linked progressive neurological disorder. Although the selective inactivation of MeCP2 in neurons is sufficient to confer a Rett-like phenotype in mice, the specific functions of MeCP2 in postmitotic neurons are not known. We find that MeCP2 binds selectively to BDNF promoter III and functions to repress expression of the BDNF gene. Membrane depolarization triggers the calcium-dependent phosphorylation and release of MeCP2 from BDNF promoter III, thereby facilitating transcription. These studies indicate that MeCP2 plays a key role in the control of neuronal activity-dependent gene regulation and suggest that the deregulation of this process may underlie the pathology of RT T.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Wen G -- Chang, Qiang -- Lin, Yingxi -- Meissner, Alexander -- West, Anne E -- Griffith, Eric C -- Jaenisch, Rudolf -- Greenberg, Michael E -- HD 18655/HD/NICHD NIH HHS/ -- NS28829/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Oct 31;302(5646):885-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neuroscience, Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593183" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain-Derived Neurotrophic Factor/*genetics ; Calcium/*metabolism ; Cell Membrane/physiology ; Cells, Cultured ; *Chromosomal Proteins, Non-Histone ; Cloning, Molecular ; CpG Islands ; DNA Methylation ; DNA-Binding Proteins/*metabolism ; Electrophoretic Mobility Shift Assay ; *Gene Expression Regulation ; Gene Silencing ; Histones/metabolism ; Methyl-CpG-Binding Protein 2 ; Methylation ; Mice ; Mice, Knockout ; Neurons/metabolism/physiology ; Phosphorylation ; Potassium Chloride/pharmacology ; Precipitin Tests ; Promoter Regions, Genetic ; Rats ; *Repressor Proteins ; Rett Syndrome/genetics ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 14
    Publikationsdatum: 2003-03-08
    Beschreibung: The mechanisms underlying experience-dependent plasticity in the brain may depend on the AMPA subclass of glutamate receptors (AMPA-Rs). We examined the trafficking of AMPA-Rs into synapses in the developing rat barrel cortex. In vivo gene delivery was combined with in vitro recordings to show that experience drives recombinant GluR1, an AMPA-R subunit, into synapses formed between layer 4 and layer 2/3 neurons. Moreover, expression of the GluR1 cytoplasmic tail, a construct that inhibits synaptic delivery of endogenous AMPA-Rs during long-term potentiation, blocked experience-driven synaptic potentiation. In general, synaptic incorporation of AMPA-Rs in vivo conforms to rules identified in vitro and contributes to plasticity driven by natural stimuli in the mammalian brain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takahashi, Takuya -- Svoboda, Karel -- Malinow, Roberto -- NS032827/NS/NINDS NIH HHS/ -- NS038259/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Mar 7;299(5612):1585-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Jones Laboratory, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12624270" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Electrophysiology ; Gene Transfer Techniques ; Long-Term Potentiation ; *Neuronal Plasticity ; Neurons/*metabolism/virology ; Patch-Clamp Techniques ; Rats ; Receptors, AMPA/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Sindbis Virus/genetics ; Somatosensory Cortex/*metabolism/virology ; Synapses/*metabolism ; *Synaptic Transmission ; Touch ; Vibrissae/physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 15
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-03-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Derse, David -- Heidecker, Gisela -- New York, N.Y. -- Science. 2003 Mar 14;299(5613):1670-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Basic Research Laboratory, National Cancer Institute, Frederick, MD 21702, USA. derse@ncifcrf.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12637723" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cell Adhesion Molecules/metabolism ; Cell Communication ; Cell Polarity ; Dendritic Cells/virology ; Extracellular Space/virology ; Gene Products, env/metabolism ; Gene Products, tax/physiology ; HTLV-I Infections/virology ; Human T-lymphotropic virus 1/genetics/*physiology ; Humans ; Intercellular Junctions/*physiology/ultrastructure/virology ; Microtubule-Organizing Center/*physiology/ultrastructure ; Receptors, Virus/metabolism ; Signal Transduction ; T-Lymphocytes/*ultrastructure/*virology ; Talin/metabolism ; Virion/physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 16
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-03-22
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harberd, Nicholas P -- New York, N.Y. -- Science. 2003 Mar 21;299(5614):1853-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉John Innes Centre, Norwich, Norfolk NR4 7UH, UK. nicholas.harberd@bbsrc.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12649470" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cloning, Molecular ; Genes, Plant ; Gibberellins/*metabolism/pharmacology ; Indoleacetic Acids/metabolism ; Ligases/metabolism ; Models, Biological ; Mutation ; Oryza/genetics/*growth & development/metabolism ; Peptide Hydrolases/metabolism ; Phosphorylation ; Plant Proteins/*genetics/*metabolism ; *Proteasome Endopeptidase Complex ; Signal Transduction ; Ubiquitin/metabolism ; Ubiquitin-Protein Ligases
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 17
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-12-04
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stewart, Murray -- New York, N.Y. -- Science. 2003 Nov 28;302(5650):1513-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MRC Laboratory of Molecular Biology, Cambridge CB2 2QH, UK. ms@mrc-lmb.cam.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14645832" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Active Transport, Cell Nucleus ; Amino Acid Motifs ; Cell Nucleus/metabolism ; Crystallography, X-Ray ; Cytoplasm/metabolism ; DNA-Binding Proteins/*chemistry/*metabolism ; Karyopherins/chemistry/metabolism ; Nuclear Localization Signals ; Nuclear Pore/*metabolism ; Protein Binding ; *Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Sterol Regulatory Element Binding Protein 2 ; Transcription Factors/*chemistry/*metabolism ; beta Karyopherins/*chemistry/*metabolism ; ran GTP-Binding Protein/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 18
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-11-15
    Beschreibung: Cranial radiation therapy causes a progressive decline in cognitive function that is linked to impaired neurogenesis. Chronic inflammation accompanies radiation injury, suggesting that inflammatory processes may contribute to neural stem cell dysfunction. Here, we show that neuroinflammation alone inhibits neurogenesis and that inflammatory blockade with indomethacin, a common nonsteroidal anti-inflammatory drug, restores neurogenesis after endotoxin-induced inflammation and augments neurogenesis after cranial irradiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Monje, Michelle L -- Toda, Hiroki -- Palmer, Theo D -- F30 NS04696701/NS/NINDS NIH HHS/ -- MH20016-05/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2003 Dec 5;302(5651):1760-5. Epub 2003 Nov 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Stanford University, Department of Neurosurgery, MSLS P309, Mail Code 5487, 1201 Welch Road, Stanford, CA 94305-5487, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14615545" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anti-Inflammatory Agents, Non-Steroidal/pharmacology ; Antigens, CD/metabolism ; Apoptosis ; Cell Differentiation ; Cells, Cultured ; Coculture Techniques ; Culture Media, Conditioned ; Cytokine Receptor gp130 ; Cytokines/physiology ; Dentate Gyrus/cytology/drug effects/physiology/radiation effects ; Female ; Gamma Rays ; Hippocampus/cytology/drug effects/*physiology/radiation effects ; In Situ Nick-End Labeling ; Indomethacin/*pharmacology ; Inflammation/drug therapy/*physiopathology ; Interleukin-6/pharmacology/physiology ; Lipopolysaccharides/pharmacology ; Membrane Glycoproteins/metabolism ; Mice ; Microglia/*physiology ; Mitotic Index ; Neurons/drug effects/*physiology/radiation effects ; Rats ; Rats, Inbred F344 ; Receptors, Interleukin-6/metabolism ; Recombinant Proteins/pharmacology ; Signal Transduction ; Stem Cells/physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 19
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-09-13
    Beschreibung: Phototropins are light-activated kinases important for plant responses to blue light. Light initiates signaling in these proteins by generating a covalent protein-flavin mononucleotide (FMN) adduct within sensory Per-ARNT-Sim (PAS) domains. We characterized the light-dependent changes of a phototropin PAS domain by solution nuclear magnetic resonance spectroscopy and found that an alpha helix located outside the canonical domain plays a key role in this activation process. Although this helix associates with the PAS core in the dark, photoinduced changes in the domain structure disrupt this interaction. We propose that this mechanism couples light-dependent bond formation to kinase activation and identifies a signaling pathway conserved among PAS domains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harper, Shannon M -- Neil, Lori C -- Gardner, Kevin H -- CA90601/CA/NCI NIH HHS/ -- GM08297/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Sep 12;301(5639):1541-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Biochemistry and Pharmacology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-9038, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12970567" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Avena/*chemistry ; Cryptochromes ; Darkness ; *Drosophila Proteins ; *Eye Proteins ; Flavoproteins/*chemistry/metabolism ; *Light ; Models, Molecular ; Molecular Sequence Data ; Nuclear Magnetic Resonance, Biomolecular ; *Photoreceptor Cells, Invertebrate ; *Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Receptors, G-Protein-Coupled ; Signal Transduction
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 20
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-05-31
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mourier, Tobias -- Jeffares, Daniel C -- New York, N.Y. -- Science. 2003 May 30;300(5624):1393.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Evolutionary Biology, Zoological Institute, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen O, Denmark. tmourier@zi.ku.dk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12775832" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Angiosperms/genetics ; Animals ; Caenorhabditis elegans/genetics ; DNA, Complementary/genetics ; Eukaryota/genetics ; *Eukaryotic Cells ; Fungi/genetics ; Humans ; Insects/genetics ; Interspersed Repetitive Sequences ; *Introns ; Mice ; Plasmodium/genetics ; RNA-Directed DNA Polymerase/metabolism ; Rats ; *Recombination, Genetic ; Takifugu/genetics ; Templates, Genetic
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 21
    Publikationsdatum: 2003-06-07
    Beschreibung: Insulin resistance is a major hallmark in the development of type II diabetes, which is characterized by the failure of insulin to promote glucose uptake in muscle and to suppress glucose production in liver. The serine-threonine kinase Akt (PKB) is a principal target of insulin signaling that inhibits hepatic glucose output when glucose is available from food. Here we show that TRB3, a mammalian homolog of Drosophila tribbles, functions as a negative modulator of Akt. TRB3 expression is induced in liver under fasting conditions, and TRB3 disrupts insulin signaling by binding directly to Akt and blocking activation of the kinase. Amounts of TRB3 RNA and protein were increased in livers of db/db diabetic mice compared with those in wild-type mice. Hepatic overexpression of TRB3 in amounts comparable to those in db/db mice promoted hyperglycemia and glucose intolerance. Our results suggest that, by interfering with Akt activation, TRB3 contributes to insulin resistance in individuals with susceptibility to type II diabetes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Du, Keyong -- Herzig, Stephan -- Kulkarni, Rohit N -- Montminy, Marc -- New York, N.Y. -- Science. 2003 Jun 6;300(5625):1574-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Peptide Biology Laboratories, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037-1002, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12791994" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenoviridae/genetics/physiology ; Amino Acid Substitution ; Animals ; Blood Glucose/metabolism ; Cell Cycle Proteins/genetics/*metabolism ; Cell Line ; Diabetes Mellitus/genetics/metabolism ; Enzyme Activation ; Fasting ; Genetic Vectors ; Glucose/metabolism ; Glucose Intolerance ; Glycogen Synthase Kinase 3/metabolism ; Humans ; Insulin/blood/*metabolism ; Insulin Resistance ; Insulin-Like Growth Factor I/pharmacology ; Liver/*metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Phosphorylation ; Polymerase Chain Reaction ; Protein-Serine-Threonine Kinases/metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-akt ; RNA Interference ; Rats ; Repressor Proteins ; Signal Transduction ; Transfection ; Transgenes ; Tumor Cells, Cultured ; Two-Hybrid System Techniques
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 22
    Publikationsdatum: 2003-06-28
    Beschreibung: Human antibody 2G12 neutralizes a broad range of human immunodeficiency virus type 1 (HIV-1) isolates by binding an unusually dense cluster of carbohydrate moieties on the "silent" face of the gp120 envelope glycoprotein. Crystal structures of Fab 2G12 and its complexes with the disaccharide Manalpha1-2Man and with the oligosaccharide Man9GlcNAc2 revealed that two Fabs assemble into an interlocked VH domain-swapped dimer. Further biochemical, biophysical, and mutagenesis data strongly support a Fab-dimerized antibody as the prevalent form that recognizes gp120. The extraordinary configuration of this antibody provides an extended surface, with newly described binding sites, for multivalent interaction with a conserved cluster of oligomannose type sugars on the surface of gp120. The unique interdigitation of Fab domains within an antibody uncovers a previously unappreciated mechanism for high-affinity recognition of carbohydrate or other repeating epitopes on cell or microbial surfaces.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Calarese, Daniel A -- Scanlan, Christopher N -- Zwick, Michael B -- Deechongkit, Songpon -- Mimura, Yusuke -- Kunert, Renate -- Zhu, Ping -- Wormald, Mark R -- Stanfield, Robyn L -- Roux, Kenneth H -- Kelly, Jeffery W -- Rudd, Pauline M -- Dwek, Raymond A -- Katinger, Hermann -- Burton, Dennis R -- Wilson, Ian A -- AI33292/AI/NIAID NIH HHS/ -- GM46192/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Jun 27;300(5628):2065-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12829775" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Antibodies, Monoclonal/chemistry/immunology/metabolism ; Antibody Affinity ; Antibody Specificity ; Binding Sites, Antibody ; Cell Adhesion Molecules/metabolism ; Centrifugation, Density Gradient ; Crystallization ; Crystallography, X-Ray ; Dimerization ; Disaccharides/chemistry/metabolism ; Epitopes ; HIV Antibodies/*chemistry/genetics/*immunology/metabolism ; HIV Envelope Protein gp120/*immunology ; HIV-1/*immunology ; Humans ; Hydrogen Bonding ; Immunoglobulin Fab Fragments/*chemistry/genetics/*immunology/metabolism ; Immunoglobulin Heavy Chains/chemistry/immunology ; Immunoglobulin Light Chains/chemistry/immunology ; Immunoglobulin Variable Region/chemistry/immunology ; Lectins/chemistry/immunology/metabolism ; Lectins, C-Type/metabolism ; Ligands ; Mannans/chemistry/metabolism ; Mannosides/chemistry/metabolism ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis ; Oligosaccharides/chemistry/*immunology/metabolism ; Protein Conformation ; Protein Structure, Tertiary ; Receptors, Cell Surface/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 23
    Publikationsdatum: 2003-02-15
    Beschreibung: Following the heme paradigm, it is often proposed that dioxygen activation by nonheme monoiron enzymes involves an iron(IV)=oxo intermediate that is responsible for the substrate oxidation step. Such a transient species has now been obtained from a synthetic complex with a nonheme macrocyclic ligand and characterized spectroscopically. Its high-resolution crystal structure reveals an iron-oxygen bond length of 1.646(3) angstroms, demonstrating that a terminal iron(IV)=oxo unit can exist in a nonporphyrin ligand environment and lending credence to proposed mechanisms of nonheme iron catalysis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rohde, Jan-Uwe -- In, Jun-Hee -- Lim, Mi Hee -- Brennessel, William W -- Bukowski, Michael R -- Stubna, Audria -- Munck, Eckard -- Nam, Wonwoo -- Que, Lawrence Jr -- GM-22701/GM/NIGMS NIH HHS/ -- GM-33162/GM/NIGMS NIH HHS/ -- GM-38767/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Feb 14;299(5609):1037-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, 207 Pleasant Street SE, Minneapolis, MN 55455, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12586936" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Catalysis ; Chemistry, Physical ; Crystallization ; Crystallography, X-Ray ; Iron/*chemistry ; Ligands ; Models, Molecular ; Molecular Structure ; Oxidation-Reduction ; Oxygen/*chemistry ; Physicochemical Phenomena ; Spectrometry, Mass, Electrospray Ionization ; Spectroscopy, Mossbauer
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 24
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-11-25
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Greg -- New York, N.Y. -- Science. 2003 Nov 21;302(5649):1321.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14631016" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Behavior Therapy ; Combined Modality Therapy ; Controlled Clinical Trials as Topic ; Cycloserine/*therapeutic use ; *Fear ; Humans ; Learning ; Phobic Disorders/*therapy ; Rats ; Receptors, N-Methyl-D-Aspartate/agonists/*metabolism ; *User-Computer Interface
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 25
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-04-26
    Beschreibung: Eukaryotic 2-Cys peroxiredoxins (2-Cys Prxs) not only act as antioxidants, but also appear to regulate hydrogen peroxide-mediated signal transduction. We show that bacterial 2-Cys Prxs are much less sensitive to oxidative inactivation than are eukaryotic 2-Cys Prxs. By identifying two sequence motifs unique to the sensitive 2-Cys Prxs and comparing the crystal structure of a bacterial 2-Cys Prx at 2.2 angstrom resolution with other Prx structures, we define the structural origins of sensitivity. We suggest this adaptation allows 2-Cys Prxs to act as floodgates, keeping resting levels of hydrogen peroxide low, while permitting higher levels during signal transduction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wood, Zachary A -- Poole, Leslie B -- Karplus, P Andrew -- ES00210/ES/NIEHS NIH HHS/ -- GM50389/GM/NIGMS NIH HHS/ -- R01 GM050389/GM/NIGMS NIH HHS/ -- R01 GM050389-10/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Apr 25;300(5619):650-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR 97333, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12714747" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Motifs ; Amino Acid Sequence ; Bacteria/enzymology ; Binding Sites ; Catalysis ; Crystallography, X-Ray ; Cysteine/metabolism ; Disulfides/chemistry/metabolism ; Evolution, Molecular ; Humans ; Hydrogen Peroxide/*metabolism ; Models, Chemical ; Models, Molecular ; Molecular Sequence Data ; Oxidation-Reduction ; Peroxidases/*chemistry/*metabolism ; Peroxiredoxins ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Salmonella typhimurium/*enzymology ; Sequence Alignment ; *Signal Transduction ; Sulfenic Acids/metabolism ; Sulfinic Acids/metabolism ; Yeasts/enzymology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 26
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-06-28
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Greg -- New York, N.Y. -- Science. 2003 Jun 27;300(5628):2020-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12829759" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cell Membrane/chemistry ; Crystallization ; Crystallography, X-Ray ; Desulfurococcaceae/chemistry ; Glycosylation ; Hot Temperature ; *Ion Channel Gating ; *Models, Molecular ; Models, Neurological ; Neurons/chemistry/physiology ; Potassium Channels, Voltage-Gated/*chemistry/*physiology ; Protein Conformation ; Protein Structure, Quaternary ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Static Electricity
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 27
    Publikationsdatum: 2003-12-13
    Beschreibung: The crystal structure at 4.8 angstrom resolution of the reaction center-light harvesting 1 (RC-LH1) core complex from Rhodopseudomonas palustris shows the reaction center surrounded by an oval LH1 complex that consists of 15 pairs of transmembrane helical alpha- and beta-apoproteins and their coordinated bacteriochlorophylls. Complete closure of the RC by the LH1 is prevented by a single transmembrane helix, out of register with the array of inner LH1 alpha-apoproteins. This break, located next to the binding site in the reaction center for the secondary electron acceptor ubiquinone (UQB), may provide a portal through which UQB can transfer electrons to cytochrome b/c1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roszak, Aleksander W -- Howard, Tina D -- Southall, June -- Gardiner, Alastair T -- Law, Christopher J -- Isaacs, Neil W -- Cogdell, Richard J -- New York, N.Y. -- Science. 2003 Dec 12;302(5652):1969-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14671305" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Apoproteins/chemistry ; Bacterial Proteins/*chemistry ; Bacteriochlorophyll A/chemistry ; Binding Sites ; Crystallization ; Crystallography, X-Ray ; Light-Harvesting Protein Complexes/*chemistry ; Macromolecular Substances ; Models, Molecular ; Photosynthetic Reaction Center Complex Proteins/*chemistry ; Protein Conformation ; Protein Structure, Secondary ; Rhodopseudomonas/*chemistry ; Ubiquinone/chemistry
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 28
    Publikationsdatum: 2003-08-23
    Beschreibung: In memory consolidation, the memory trace stabilizes and becomes resistant to certain amnesic agents. The textbook account is that for any memorized item, consolidation starts and ends just once. However, evidence has accumulated that upon activation in retrieval, the trace may reconsolidate. Whereas some authors reported transient renewed susceptibility of retrieved memories to consolidation blockers, others could not detect it. Here, we report that in both conditioned taste aversion in the rat and fear conditioning in the medaka fish, the stability of retrieved memory is inversely correlated with the control of behavior by that memory. This result may explain some conflicting findings on reconsolidation of activated memories.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eisenberg, Mark -- Kobilo, Tali -- Berman, Diego E -- Dudai, Yadin -- New York, N.Y. -- Science. 2003 Aug 22;301(5636):1102-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Weizmann Institute of Science, Rehovot 76100, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12934010" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aminobenzoates/pharmacology ; Analysis of Variance ; Animals ; Anisomycin/administration & dosage/pharmacology ; Avoidance Learning ; Cerebral Cortex/drug effects ; Conditioning (Psychology) ; Cues ; Electroshock ; *Extinction, Psychological/drug effects ; Fear ; Male ; *Memory ; *Mental Recall ; Oryzias ; Rats ; Rats, Wistar ; Taste ; meta-Aminobenzoates
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 29
    Publikationsdatum: 2003-10-25
    Beschreibung: Paracaspase (MALT1), a member of an evolutionarily conserved superfamily of caspase-like proteins, has been shown to bind and colocalize with the protein Bcl10 in vitro and, because of this association, has been suggested to be involved in the CARMA1-Bcl10 pathway of antigen-induced nuclear factor kappaB (NF-kappaB) activation. We demonstrate that primary T and B lymphocytes from paracaspase-deficient mice are defective in antigen-receptor-induced NF-kappaB activation, cytokine production, and proliferation. Paracaspase acts downstream of Bcl10 to induce NF-kappaB activation and is required for the normal development of B cells, indicating that paracaspase provides the missing link between Bcl10 and activation of the IkappaB kinase complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ruefli-Brasse, Astrid A -- French, Dorothy M -- Dixit, Vishva M -- New York, N.Y. -- Science. 2003 Nov 28;302(5650):1581-4. Epub 2003 Oct 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Oncology Department, 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/14576442" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Adaptor Proteins, Signal Transducing ; Animals ; Antibody Formation ; Antigens, CD/analysis ; B-Lymphocyte Subsets/immunology/physiology ; B-Lymphocytes/*immunology/metabolism/physiology ; Caspases ; Cell Differentiation ; Cell Division ; Cell Survival ; Cells, Cultured ; Cytokines/metabolism ; Gene Deletion ; Gene Targeting ; Guanylate Kinase ; I-kappa B Kinase ; *Lymphocyte Activation ; Lymphoma, B-Cell, Marginal Zone/chemistry/*metabolism ; Mice ; Mice, Inbred C57BL ; NF-kappa B/*metabolism ; Neoplasm Proteins/chemistry/*metabolism ; Nucleoside-Phosphate Kinase/metabolism ; Phosphorylation ; Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases/metabolism ; Receptors, Antigen, B-Cell/metabolism ; Receptors, Antigen, T-Cell/metabolism ; Signal Transduction ; T-Lymphocyte Subsets/immunology/physiology ; T-Lymphocytes/*immunology/metabolism/physiology ; Transfection
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 30
    Publikationsdatum: 2003-02-22
    Beschreibung: We have developed a proteomic approach for identifying phosphopeptide binding domains that modulate kinase-dependent signaling pathways. An immobilized library of partially degenerate phosphopeptides biased toward a particular protein kinase phosphorylation motif is used to isolate phospho-binding domains that bind to proteins phosphorylated by that kinase. Applying this approach to cyclin-dependent kinases (Cdks), we identified the polo-box domain (PBD) of the mitotic kinase polo-like kinase 1 (Plk1) as a specific phosphoserine (pSer) or phosphothreonine (pThr) binding domain and determined its optimal binding motif. This motif is present in known Plk1 substrates such as Cdc25, and an optimal phosphopeptide containing the motif disrupted PBD-substrate binding and localization of the PBD to centrosomes. This finding reveals how Plk1 can localize to specific sites within cells in response to Cdk phosphorylation at those sites and provides a structural mechanism for targeting the Plk1 kinase domain to its substrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elia, Andrew E H -- Cantley, Lewis C -- Yaffe, Michael B -- GM52981/GM/NIGMS NIH HHS/ -- GM56203/GM/NIGMS NIH HHS/ -- R01 GM056203/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Feb 21;299(5610):1228-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Cancer Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12595692" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Motifs ; Binding Sites ; Calorimetry ; Cell Cycle Proteins ; Centrosome/metabolism ; HeLa Cells ; Humans ; Ligands ; Mitosis ; Peptide Library ; Phosphopeptides/chemistry/*metabolism ; Phosphorylation ; Phosphoserine/*metabolism ; Phosphothreonine/*metabolism ; Point Mutation ; Protein Binding ; Protein Kinases/*chemistry/genetics/*metabolism ; *Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases ; Proteomics ; Proto-Oncogene Proteins ; Signal Transduction ; cdc25 Phosphatases/chemistry/genetics/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 31
    Publikationsdatum: 2003-08-02
    Beschreibung: Membrane transport proteins that transduce free energy stored in electrochemical ion gradients into a concentration gradient are a major class of membrane proteins. We report the crystal structure at 3.5 angstroms of the Escherichia coli lactose permease, an intensively studied member of the major facilitator superfamily of transporters. The molecule is composed of N- and C-terminal domains, each with six transmembrane helices, symmetrically positioned within the permease. A large internal hydrophilic cavity open to the cytoplasmic side represents the inward-facing conformation of the transporter. The structure with a bound lactose homolog, beta-D-galactopyranosyl-1-thio-beta-D-galactopyranoside, reveals the sugar-binding site in the cavity, and residues that play major roles in substrate recognition and proton translocation are identified. We propose a possible mechanism for lactose/proton symport (co-transport) consistent with both the structure and a large body of experimental data.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abramson, Jeff -- Smirnova, Irina -- Kasho, Vladimir -- Verner, Gillian -- Kaback, H Ronald -- Iwata, So -- DK51131: 08/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2003 Aug 1;301(5633):610-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Imperial College London, London SW7 2AZ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12893935" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Substitution ; Binding Sites ; Biological Transport ; Cell Membrane/enzymology ; Crystallization ; Crystallography, X-Ray ; Escherichia coli/*chemistry/enzymology ; Escherichia coli Proteins/chemistry/genetics/metabolism ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Ion Transport ; Lactose/*metabolism ; Membrane Transport Proteins/*chemistry/genetics/*metabolism ; Models, Molecular ; *Monosaccharide Transport Proteins ; Mutation ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protons ; Substrate Specificity ; *Symporters ; Thiogalactosides/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 32
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-08-09
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guerrero, Isabel -- Ruiz i Altaba, Ariel -- New York, N.Y. -- Science. 2003 Aug 8;301(5634):774-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centro de Biologia Molecular "Severo Ochoa," CSIC-UAM, Universidad Autonoma de Madrid, Madrid E-28049, Spain. iguerrero@cbm.uam.es〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12907783" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Apoptosis ; Caspase 3 ; Caspases/metabolism ; Central Nervous System/cytology/*embryology ; Chick Embryo ; Drosophila/growth & development/metabolism ; Drosophila Proteins/metabolism ; Hedgehog Proteins ; Humans ; Intracellular Signaling Peptides and Proteins ; Ligands ; Membrane Proteins/chemistry/genetics/*metabolism ; Mice ; Mutation ; Neoplasms/etiology ; Protein Binding ; Protein Structure, Tertiary ; Receptors, Cell Surface ; Signal Transduction ; Trans-Activators/*metabolism ; Wings, Animal/growth & development
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 33
    Publikationsdatum: 2003-08-30
    Beschreibung: The rhizobial infection of legumes has the most stringent demand toward Nod factor structure of all host responses, and therefore a specific Nod factor entry receptor has been proposed. The SYM2 gene identified in certain ecotypes of pea (Pisum sativum) is a good candidate for such an entry receptor. We exploited the close phylogenetic relationship of pea and the model legume Medicago truncatula to identify genes specifically involved in rhizobial infection. The SYM2 orthologous region of M. truncatula contains 15 putative receptor-like genes, of which 7 are LysM domain-containing receptor-like kinases (LYKs). Using reverse genetics in M. truncatula, we show that two LYK genes are specifically involved in infection thread formation. This, as well as the properties of the LysM domains, strongly suggests that they are Nod factor entry receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Limpens, Erik -- Franken, Carolien -- Smit, Patrick -- Willemse, Joost -- Bisseling, Ton -- Geurts, Rene -- New York, N.Y. -- Science. 2003 Oct 24;302(5645):630-3. Epub 2003 Aug 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Biology, Department of Plant Sciences, Wageningen University, Dreijenlaan 3, 6703HA, Wageningen, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12947035" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Base Sequence ; Gene Expression ; *Genes, Plant ; Ligands ; Lipopolysaccharides/*metabolism ; Medicago/genetics/microbiology/*physiology ; Models, Biological ; Molecular Sequence Data ; Mutation ; Nitrogen Fixation ; Peas ; Phenotype ; Plant Roots/*microbiology/physiology ; Protein Kinases/chemistry/*genetics/*metabolism ; Protein Structure, Tertiary ; RNA Interference ; Signal Transduction ; Sinorhizobium meliloti/chemistry/genetics/growth & development/*physiology ; *Symbiosis
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 34
    Publikationsdatum: 2003-02-01
    Beschreibung: The structure of Escherichia coli succinate dehydrogenase (SQR), analogous to the mitochondrial respiratory complex II, has been determined, revealing the electron transport pathway from the electron donor, succinate, to the terminal electron acceptor, ubiquinone. It was found that the SQR redox centers are arranged in a manner that aids the prevention of reactive oxygen species (ROS) formation at the flavin adenine dinucleotide. This is likely to be the main reason SQR is expressed during aerobic respiration rather than the related enzyme fumarate reductase, which produces high levels of ROS. Furthermore, symptoms of genetic disorders associated with mitochondrial SQR mutations may be a result of ROS formation resulting from impaired electron transport in the enzyme.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yankovskaya, Victoria -- Horsefield, Rob -- Tornroth, Susanna -- Luna-Chavez, Cesar -- Miyoshi, Hideto -- Leger, Christophe -- Byrne, Bernadette -- Cecchini, Gary -- Iwata, So -- GM61606/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Jan 31;299(5607):700-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biology Division, VA Medical Center, San Francisco, CA 94121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12560550" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aerobiosis ; Anaerobiosis ; Binding Sites ; Crystallography, X-Ray ; Dinitrophenols/chemistry/pharmacology ; Electron Transport ; Electron Transport Complex II ; Escherichia coli/*enzymology ; Flavin-Adenine Dinucleotide/metabolism ; Heme/chemistry ; Models, Molecular ; Multienzyme Complexes/antagonists & inhibitors/*chemistry/genetics/*metabolism ; Mutation ; Oxidation-Reduction ; Oxidoreductases/antagonists & inhibitors/*chemistry/genetics/*metabolism ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits/chemistry ; Reactive Oxygen Species/*metabolism ; Succinate Dehydrogenase/antagonists & inhibitors/*chemistry/genetics/*metabolism ; Succinic Acid/metabolism ; Superoxides/metabolism ; Ubiquinone/chemistry/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 35
    Publikationsdatum: 2003-09-06
    Beschreibung: The earliest of a series of copper efflux genes in Escherichia coli are controlled by CueR, a member of the MerR family of transcriptional activators. Thermodynamic calibration of CueR reveals a zeptomolar (10(-21) molar) sensitivity to free Cu+, which is far less than one atom per cell. Atomic details of this extraordinary sensitivity and selectivity for +1transition-metal ions are revealed by comparing the crystal structures of CueR and a Zn2+-sensing homolog, ZntR. An unusual buried metal-receptor site in CueR restricts the metal to a linear, two-coordinate geometry and uses helix-dipole and hydrogen-bonding interactions to enhance metal binding. This binding mode is rare among metalloproteins but well suited for an ultrasensitive genetic switch.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Changela, Anita -- Chen, Kui -- Xue, Yi -- Holschen, Jackie -- Outten, Caryn E -- O'Halloran, Thomas V -- Mondragon, Alfonso -- F32 DK61868/DK/NIDDK NIH HHS/ -- GM08382/GM/NIGMS NIH HHS/ -- GM38784/GM/NIGMS NIH HHS/ -- GM51350/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Sep 5;301(5638):1383-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Molecular Biology, and Cell Biology, Northwestern University, 2205Tech Drive, Evanston, IL 60208, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12958362" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Bacterial Proteins/*chemistry/genetics/*metabolism ; Binding Sites ; Copper/*metabolism ; Crystallization ; Crystallography, X-Ray ; DNA-Binding Proteins/*chemistry/genetics/*metabolism ; Dimerization ; Escherichia coli/*chemistry/genetics/metabolism ; Escherichia coli Proteins/*chemistry/genetics/*metabolism ; Helix-Turn-Helix Motifs ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Ligands ; Metals/*metabolism ; Models, Molecular ; Molecular Sequence Data ; Oxidation-Reduction ; Promoter Regions, Genetic ; Protein Conformation ; Protein Structure, Secondary ; Sequence Alignment ; Thermodynamics ; Transcription Factors/chemistry/genetics/metabolism ; Transcriptional Activation ; Zinc/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 36
    Publikationsdatum: 2003-04-26
    Beschreibung: Block copolymer micelles are water-soluble biocompatible nanocontainers with great potential for delivering hydrophobic drugs. An understanding of their cellular distribution is essential to achieving selective delivery of drugs at the subcellular level. Triple-labeling confocal microscopy in live cells revealed the localization of micelles in several cytoplasmic organelles, including mitochondria, but not in the nucleus. Moreover, micelles change the cellular distribution of and increase the amount of the agent delivered to the cells. These micelles may thus be worth exploring for their potential to selectively deliver drugs to specified subcellular targets.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Savic, Radoslav -- Luo, Laibin -- Eisenberg, Adi -- Maysinger, Dusica -- New York, N.Y. -- Science. 2003 Apr 25;300(5619):615-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology and Therapeutics, McGill University, Montreal, QC, H3G 1Y6, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12714738" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Azides/chemistry ; Biocompatible Materials ; Cell Nucleus/metabolism ; Cytoplasm/*metabolism ; Diffusion ; Drug Carriers/chemistry/*metabolism ; Endoplasmic Reticulum/metabolism ; Ethylene Oxide/chemistry/metabolism ; Fluoresceins ; Fluorescence ; Golgi Apparatus/metabolism ; Hydrophobic and Hydrophilic Interactions ; Lactones/chemistry/metabolism ; Lysosomes/metabolism ; *Micelles ; Microscopy, Confocal ; Microscopy, Fluorescence ; Mitochondria/metabolism ; *Nanotechnology ; Organelles/*metabolism ; PC12 Cells ; Polyethylene Glycols/chemistry ; Polymers/chemistry/metabolism ; Rats ; Rhodamines/chemistry ; Solubility ; Spectrometry, Fluorescence
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 37
    Publikationsdatum: 2003-09-06
    Beschreibung: Wnt proteins, regulators of development in many organisms, bind to seven transmembrane-spanning (7TMS) receptors called frizzleds, thereby recruiting the cytoplasmic molecule dishevelled (Dvl) to the plasma membrane.Frizzled-mediated endocytosis of Wg (a Drosophila Wnt protein) and lysosomal degradation may regulate the formation of morphogen gradients. Endocytosis of Frizzled 4 (Fz4) in human embryonic kidney 293 cells was dependent on added Wnt5A protein and was accomplished by the multifunctional adaptor protein beta-arrestin 2 (betaarr2), which was recruited to Fz4 by binding to phosphorylated Dvl2. These findings provide a previously unrecognized mechanism for receptor recruitment of beta-arrestin and demonstrate that Dvl plays an important role in the endocytosis of frizzled, as well as in promoting signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Wei -- ten Berge, Derk -- Brown, Jeff -- Ahn, Seungkirl -- Hu, Liaoyuan A -- Miller, William E -- Caron, Marc G -- Barak, Larry S -- Nusse, Roel -- Lefkowitz, Robert J -- HL 16037/HL/NHLBI NIH HHS/ -- HL 61365/HL/NHLBI NIH HHS/ -- NS 19576/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Sep 5;301(5638):1391-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Departments of Medicine and Biochemistry, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12958364" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adaptor Proteins, Signal Transducing ; Animals ; Arrestins/genetics/*metabolism ; Cell Line ; Cell Membrane/metabolism ; Clathrin/metabolism ; Cytoplasm/metabolism ; *Endocytosis ; Frizzled Receptors ; Humans ; Mice ; Phosphoproteins/metabolism ; Phosphorylation ; Protein Kinase C/antagonists & inhibitors/metabolism ; Proteins/genetics/*metabolism ; Proto-Oncogene Proteins/*metabolism/pharmacology ; RNA, Small Interfering ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Wnt Proteins
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 38
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-08-02
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Locher, Kaspar P -- Bass, Randal B -- Rees, Douglas C -- New York, N.Y. -- Science. 2003 Aug 1;301(5633):603-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Molekularbiologie und Biophysik, Eidgenossische Technische Hochschule Zurich, Zurich CH-8093, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12893929" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Binding Sites ; Biological Transport ; Cell Membrane/enzymology ; Crystallography, X-Ray ; Escherichia coli/chemistry/enzymology ; Escherichia coli Proteins/*chemistry/metabolism ; Glycerophosphates/metabolism ; Lactose/metabolism ; Membrane Transport Proteins/*chemistry/metabolism ; Models, Molecular ; *Monosaccharide Transport Proteins ; Phosphates/metabolism ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; *Symporters
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 39
    Publikationsdatum: 2003-09-23
    Beschreibung: Erythrocytic mechanisms involved in malarial infection are poorly understood. We have found that signaling via the erythrocyte beta2-adrenergic receptor and heterotrimeric guanine nucleotide-binding protein (Galphas) regulated the entry of the human malaria parasite Plasmodium falciparum. Agonists that stimulate cyclic adenosine 3',5'-monophosphate production led to an increase in malarial infection that could be blocked by specific receptor antagonists. Moreover, peptides designed to inhibit Galphas protein function reduced parasitemia in P. falciparum cultures in vitro, and beta-antagonists reduced parasitemia of P. berghei infections in an in vivo mouse model. Thus, signaling via the erythrocyte beta2-adrenergic receptor and Galphas may regulate malarial infection across parasite species.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harrison, Travis -- Samuel, Benjamin U -- Akompong, Thomas -- Hamm, Heidi -- Mohandas, Narla -- Lomasney, Jon W -- Haldar, Kasturi -- AI39071/AI/NIAID NIH HHS/ -- DK32094/DK/NIDDK NIH HHS/ -- EY06062/EY/NEI NIH HHS/ -- EY10291/EY/NEI NIH HHS/ -- HL03961/HL/NHLBI NIH HHS/ -- HL55591/HL/NHLBI NIH HHS/ -- HL69630/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2003 Sep 19;301(5640):1734-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Feinberg School of Medicine, Northwestern University, 303 Chicago Avenue, Chicago, IL 60611, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14500986" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adrenergic beta-2 Receptor Agonists ; Adrenergic beta-2 Receptor Antagonists ; Adrenergic beta-Agonists/pharmacology ; Adrenergic beta-Antagonists/pharmacology ; Alprenolol/pharmacology ; Animals ; Catecholamines/metabolism ; Cyclic AMP/metabolism ; Erythrocyte Membrane/metabolism ; Erythrocytes/metabolism/*parasitology ; GTP-Binding Protein alpha Subunits, Gs/chemistry/*metabolism ; Humans ; Malaria/metabolism/*parasitology ; Membrane Microdomains/metabolism ; Mice ; Parasitemia ; Peptide Fragments/pharmacology ; Plasmodium berghei/*physiology ; Plasmodium falciparum/growth & development/*physiology ; Propranolol/pharmacology ; Purinergic P1 Receptor Agonists ; Purinergic P1 Receptor Antagonists ; Receptors, Adrenergic, beta-2/*metabolism ; Receptors, Purinergic P1/metabolism ; Signal Transduction ; Stereoisomerism ; Vacuoles/parasitology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 40
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-02-08
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davidson, Alan J -- Zon, Leonard I -- New York, N.Y. -- Science. 2003 Feb 7;299(5608):835-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Division of Hematology/Oncology, Children's Hospital, Howard Hughes Medical Institute, Boston, MA 02115, USA. zon@hhmi.tchlab.org〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12574609" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Carbon Tetrachloride/toxicity ; Cell Communication ; Cell Division ; Coculture Techniques ; Drug-Induced Liver Injury ; Endothelial Growth Factors/metabolism/*physiology ; Endothelium, Vascular/*cytology/physiology ; Hepatocyte Growth Factor/physiology/secretion ; Hepatocytes/*physiology ; Interleukin-6/physiology/secretion ; Liver/blood supply/*cytology/pathology/*physiology ; Liver Diseases/metabolism/pathology/prevention & control ; *Liver Regeneration ; Mice ; Necrosis ; Signal Transduction ; Up-Regulation ; Vascular Endothelial Growth Factor A ; Vascular Endothelial Growth Factor Receptor-1/*metabolism ; Vascular Endothelial Growth Factor Receptor-2/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 41
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-12-20
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewcock, Joseph W -- Reed, Randall R -- New York, N.Y. -- Science. 2003 Dec 19;302(5653):2078-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14684811" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Action Potentials ; Alleles ; Animals ; Cell Nucleus/metabolism ; Chromosomes, Artificial, Yeast ; Feedback, Physiological ; *Gene Expression Regulation ; Genes, Reporter ; Mice ; Mice, Transgenic ; Multigene Family ; Odors ; Olfactory Receptor Neurons/*metabolism ; Promoter Regions, Genetic ; Pseudogenes ; Receptors, Odorant/*genetics/*metabolism ; Signal Transduction ; Transgenes
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 42
    Publikationsdatum: 2003-04-12
    Beschreibung: Vascular smooth muscle cell (SMC) proliferation and migration are important events in the development of atherosclerosis. The low-density lipoprotein receptor-related protein (LRP1) mediates suppression of SMC migration induced by platelet-derived growth factor (PDGF). Here we show that LRP1 forms a complex with the PDGF receptor (PDGFR). Inactivation of LRP1 in vascular SMCs of mice causes PDGFR overexpression and abnormal activation of PDGFR signaling, resulting in disruption of the elastic layer, SMC proliferation, aneurysm formation, and marked susceptibility to cholesterol-induced atherosclerosis. The development of these abnormalities was reduced by treatment with Gleevec, an inhibitor of PDGF signaling. Thus, LRP1 has a pivotal role in protecting vascular wall integrity and preventing atherosclerosis by controlling PDGFR activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boucher, Philippe -- Gotthardt, Michael -- Li, Wei-Ping -- Anderson, Richard G W -- Herz, Joachim -- GM 52016/GM/NIGMS NIH HHS/ -- HL20948/HL/NHLBI NIH HHS/ -- HL63762/HL/NHLBI NIH HHS/ -- NS43408/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Apr 11;300(5617):329-32.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-9046, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12690199" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Aorta/cytology/metabolism/*pathology ; Arteriosclerosis/*pathology/physiopathology/*prevention & control ; Benzamides ; Cattle ; Cell Division ; Cell Line ; Cholesterol, Dietary/administration & dosage ; Diet, Atherogenic ; Elastin/analysis ; Enzyme Inhibitors/pharmacology ; Imatinib Mesylate ; Ligands ; Low Density Lipoprotein Receptor-Related ; Protein-1/genetics/metabolism/*physiology ; Mesenteric Arteries/cytology/pathology ; Mice ; Mice, Knockout ; Mice, Transgenic ; Muscle, Smooth, Vascular/cytology/*metabolism/pathology ; Myocytes, Smooth Muscle/*metabolism/physiology ; Phosphorylation ; Piperazines/pharmacology ; Platelet-Derived Growth Factor/metabolism/pharmacology ; Proto-Oncogene Proteins c-sis ; Pyrimidines/pharmacology ; Receptor, Platelet-Derived Growth Factor beta/metabolism ; Signal Transduction
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 43
    Publikationsdatum: 2003-06-28
    Beschreibung: Interleukin-6 (IL-6) is an immunoregulatory cytokine that activates a cell-surface signaling assembly composed of IL-6, the IL-6 alpha-receptor (IL-6Ralpha), and the shared signaling receptor gp130. The 3.65 angstrom-resolution structure of the extracellular signaling complex reveals a hexameric, interlocking assembly mediated by a total of 10 symmetry-related, thermodynamically coupled interfaces. Assembly of the hexameric complex occurs sequentially: IL-6 is first engaged by IL-6Ralpha and then presented to gp130in the proper geometry to facilitate a cooperative transition into the high-affinity, signaling-competent hexamer. The quaternary structures of other IL-6/IL-12 family signaling complexes are likely constructed by means of a similar topological blueprint.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boulanger, Martin J -- Chow, Dar-chone -- Brevnova, Elena E -- Garcia, K Christopher -- AI51321/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2003 Jun 27;300(5628):2101-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology and Department of Structural Biology, Stanford University School of Medicine, Fairchild D319, 299 Campus Drive, Stanford, CA 94305-5124, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12829785" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Antigens, CD/*chemistry/*metabolism ; Binding Sites ; Crystallography, X-Ray ; Cytokine Receptor gp130 ; Humans ; Interleukin-6/*chemistry/*metabolism ; Macromolecular Substances ; Membrane Glycoproteins/*chemistry/*metabolism ; Models, Molecular ; Protein Binding ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Receptors, Interleukin-6/*chemistry/*metabolism ; Signal Transduction ; Thermodynamics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 44
    Publikationsdatum: 2003-07-19
    Beschreibung: Glucokinase (GK) plays a key role in whole-body glucose homeostasis by catalyzing the phosphorylation of glucose in cells that express this enzyme, such as pancreatic beta cells and hepatocytes. We describe a class of antidiabetic agents that act as nonessential, mixed-type GK activators (GKAs) that increase the glucose affinity and maximum velocity (Vmax) of GK. GKAs augment both hepatic glucose metabolism and glucose-induced insulin secretion from isolated rodent pancreatic islets, consistent with the expression and function of GK in both cell types. In several rodent models of type 2 diabetes mellitus, GKAs lowered blood glucose levels, improved the results of glucose tolerance tests, and increased hepatic glucose uptake. These findings may lead to the development of new drug therapies for diabetes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grimsby, Joseph -- Sarabu, Ramakanth -- Corbett, Wendy L -- Haynes, Nancy-Ellen -- Bizzarro, Fred T -- Coffey, John W -- Guertin, Kevin R -- Hilliard, Darryl W -- Kester, Robert F -- Mahaney, Paige E -- Marcus, Linda -- Qi, Lida -- Spence, Cheryl L -- Tengi, John -- Magnuson, Mark A -- Chu, Chang An -- Dvorozniak, Mark T -- Matschinsky, Franz M -- Grippo, Joseph F -- New York, N.Y. -- Science. 2003 Jul 18;301(5631):370-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Metabolic Diseases, Hoffmann-La Roche Inc., Nutley, NJ 07110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12869762" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adaptor Proteins, Signal Transducing ; Allosteric Regulation ; Animals ; Blood Glucose/metabolism ; *Carrier Proteins ; Diabetes Mellitus, Type 2/*drug therapy/metabolism ; Dose-Response Relationship, Drug ; Drug Evaluation, Preclinical ; Enzyme Activation ; Enzyme Activators/chemistry/pharmacology ; Glucokinase/*metabolism ; Glucose/*metabolism ; Glucose Tolerance Test ; Homeostasis ; Humans ; Hypoglycemic Agents/chemistry/pharmacology ; Insulin/blood/*secretion ; Islets of Langerhans/*drug effects/secretion ; Keto Acids/metabolism ; Liver/*drug effects/metabolism ; Liver Glycogen/biosynthesis ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Obese ; Proteins/metabolism/pharmacology ; Rats ; Rats, Wistar ; Recombinant Proteins/metabolism ; Stereoisomerism ; Thiazoles/chemistry/*pharmacology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 45
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-10-04
    Beschreibung: Cell adhesion by adherens junctions and desmosomes relies on interactions between cadherin molecules. However, the molecular interfaces that define molecular specificity and that mediate adhesion remain controversial. We used electron tomography of plastic sections from neonatal mouse skin to visualize the organization of desmosomes in situ. The resulting three-dimensional maps reveal individual cadherin molecules forming discrete groups and interacting through their tips. Fitting of an x-ray crystal structure for C-cadherin to these maps is consistent with a flexible intermolecular interface mediated by an exchange of amino-terminal tryptophans. This flexibility suggests a novel mechanism for generating both cis and trans interactions and for propagating these adhesive interactions along the junction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉He, Wanzhong -- Cowin, Pamela -- Stokes, David L -- R01 GM47429/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Oct 3;302(5642):109-13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Skirball Institute of Biomolecular Medicine, New York University School of Medicine, 540 First Avenue, New York, NY 10016, USA..〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14526082" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Newborn ; Cadherins/*chemistry/*ultrastructure ; Cell Adhesion ; Crystallography, X-Ray ; Cytoskeletal Proteins/chemistry/ultrastructure ; Desmoplakins ; Desmosomes/*chemistry/*ultrastructure ; Dimerization ; Epidermis/chemistry/ultrastructure ; Freeze Substitution ; Hydrophobic and Hydrophilic Interactions ; *Image Processing, Computer-Assisted ; Mice ; Microscopy, Electron/methods ; Protein Binding ; Protein Conformation ; Protein Structure, Tertiary ; *Tomography ; Tryptophan/chemistry ; Xenopus Proteins
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 46
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-11-01
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ehlers, Michael D -- New York, N.Y. -- Science. 2003 Oct 31;302(5646):800-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Duke University Medical Center, Durham, NC 27710, USA. ehlers@neuro.duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593160" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Awards and Prizes ; Carrier Proteins/metabolism ; Cells, Cultured ; Cyclic AMP Response Element-Binding Protein/metabolism ; Cysteine Endopeptidases/metabolism ; Mitogen-Activated Protein Kinases/metabolism ; Multienzyme Complexes/metabolism ; Nerve Tissue Proteins/*metabolism ; Neurons/metabolism ; Proteasome Endopeptidase Complex ; Receptors, N-Methyl-D-Aspartate/metabolism ; Signal Transduction ; Synapses/*metabolism/ultrastructure ; Synaptic Membranes/*metabolism/ultrastructure ; *Synaptic Transmission ; Ubiquitin/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 47
    Publikationsdatum: 2003-10-25
    Beschreibung: Rab/Ypt guanosine triphosphatases (GTPases) represent a family of key membrane traffic regulators in eukaryotic cells whose function is governed by the guanosine diphosphate (GDP) dissociation inhibitor (RabGDI). Using a combination of chemical synthesis and protein engineering, we generated and crystallized the monoprenylated Ypt1:RabGDI complex. The structure of the complex was solved to 1.5 angstrom resolution and provides a structural basis for the ability of RabGDI to inhibit the release of nucleotide by Rab proteins. Isoprenoid binding requires a conformational change that opens a cavity in the hydrophobic core of its domain II. Analysis of the structure provides a molecular basis for understanding a RabGDI mutant that causes mental retardation in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rak, Alexey -- Pylypenko, Olena -- Durek, Thomas -- Watzke, Anja -- Kushnir, Susanna -- Brunsveld, Lucas -- Waldmann, Herbert -- Goody, Roger S -- Alexandrov, Kirill -- New York, N.Y. -- Science. 2003 Oct 24;302(5645):646-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physical Biochemistry, Max-Planck-Institute for Molecular Physiology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14576435" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Binding Sites ; Crystallization ; Crystallography, X-Ray ; Guanine Nucleotide Dissociation Inhibitors/*chemistry/genetics/metabolism ; Guanosine Diphosphate/chemistry/metabolism ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Lipid Metabolism ; Magnesium/chemistry/metabolism ; Models, Molecular ; Mutation ; Protein Binding ; Protein Conformation ; Protein Prenylation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Recombinant Proteins/chemistry/metabolism ; Saccharomyces cerevisiae Proteins/chemistry/metabolism ; rab GTP-Binding Proteins/*chemistry/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 48
    Publikationsdatum: 2003-09-27
    Beschreibung: Like many bacterial pathogens, Salmonella spp. use a type III secretion system to inject virulence proteins into host cells. The Salmonella invasion protein A (SipA) binds host actin, enhances its polymerization near adherent extracellular bacteria, and contributes to cytoskeletal rearrangements that internalize the pathogen. By combining x-ray crystallography of SipA with electron microscopy and image analysis of SipA-actin filaments, we show that SipA functions as a "molecular staple," in which a globular domain and two nonglobular "arms" mechanically stabilize the filament by tethering actin subunits in opposing strands. Deletion analysis of the tethering arms provides strong support for this model.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lilic, Mirjana -- Galkin, Vitold E -- Orlova, Albina -- VanLoock, Margaret S -- Egelman, Edward H -- Stebbins, C Erec -- New York, N.Y. -- Science. 2003 Sep 26;301(5641):1918-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Structural Microbiology, Rockefeller University, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14512630" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Actin Cytoskeleton/metabolism ; Actins/*metabolism ; Bacterial Proteins/*chemistry/genetics/*metabolism ; Binding Sites ; Crystallography, X-Ray ; Image Processing, Computer-Assisted ; Microfilament Proteins/*chemistry/genetics/*metabolism ; Microscopy, Electron ; Models, Molecular ; Protein Binding ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Recombinant Proteins/chemistry/metabolism ; Salmonella typhimurium/chemistry/*metabolism ; Sequence Deletion ; Subtilisin/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 49
    Publikationsdatum: 2003-10-11
    Beschreibung: The stone-like otoliths from the ears of teleost fishes are involved in balance and hearing and consist of calcium carbonate crystallites embedded in a protein framework. We report that a previously unknown gene, starmaker, is required in zebrafish for otolith morphogenesis. Reduction of starmaker activity by injection of modified antisense oligonucleotides causes a change in the crystal lattice structure and thus a change in otolith morphology. The expression pattern of starmaker, along with the presence of the protein on the growing otolith, suggest that the expression levels of starmaker control the shape of the otoliths.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sollner, Christian -- Burghammer, Manfred -- Busch-Nentwich, Elisabeth -- Berger, Jurgen -- Schwarz, Heinz -- Riekel, Christian -- Nicolson, Teresa -- New York, N.Y. -- Science. 2003 Oct 10;302(5643):282-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institut fur Entwicklungsbiologie, Spemannstrasse 35, 72076 Tubingen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14551434" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; *Calcification, Physiologic ; Calcium Carbonate/chemistry ; Computational Biology ; Crystallization ; Crystallography, X-Ray ; Ear/embryology/physiology ; Gene Expression ; Hearing ; Hydrogen-Ion Concentration ; Microscopy, Electron, Scanning ; Molecular Sequence Data ; Morphogenesis ; Oligonucleotides, Antisense ; Otolithic Membrane/chemistry/growth & development/*physiology/ultrastructure ; Phenotype ; Postural Balance ; X-Ray Diffraction ; Zebrafish/anatomy & histology/genetics/growth & development/*physiology ; Zebrafish Proteins/chemistry/genetics/*physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 50
    Publikationsdatum: 2003-11-25
    Beschreibung: Individual cellular clocks in the suprachiasmatic nucleus (SCN), the circadian center, are integrated into a stable and robust pacemaker with a period length of about 24 hours. We used real-time analysis of gene expression to show synchronized rhythms of clock gene transcription across hundreds of neurons within the mammalian SCN in organotypic slice culture. Differentially phased neuronal clocks are topographically arranged across the SCN. A protein synthesis inhibitor set all cell clocks to the same initial phase and, after withdrawal, intrinsic interactions among cell clocks reestablished the stable program of gene expression across the assemblage. Na+-dependent action potentials contributed to establishing cellular synchrony and maintaining spontaneous oscillation across the SCN.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamaguchi, Shun -- Isejima, Hiromi -- Matsuo, Takuya -- Okura, Ryusuke -- Yagita, Kazuhiro -- Kobayashi, Masaki -- Okamura, Hitoshi -- New York, N.Y. -- Science. 2003 Nov 21;302(5649):1408-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Brain Science, Department of Brain Sciences, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14631044" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): ARNTL Transcription Factors ; Action Potentials/drug effects ; Animals ; Basic Helix-Loop-Helix Transcription Factors ; Biological Clocks/*physiology ; CLOCK Proteins ; Cell Cycle Proteins ; Circadian Rhythm/*physiology ; Cycloheximide/pharmacology ; Gene Expression ; Glyceraldehyde-3-Phosphate Dehydrogenases/genetics/metabolism ; Luminescence ; Mice ; Mice, Knockout ; Mice, Transgenic ; Neurons/*physiology ; Nuclear Proteins/genetics/metabolism ; Organ Culture Techniques ; Period Circadian Proteins ; Promoter Regions, Genetic ; Protein Synthesis Inhibitors/pharmacology ; Signal Transduction ; Sodium/metabolism ; Suppression, Genetic ; Suprachiasmatic Nucleus/cytology/*physiology ; Tetrodotoxin/pharmacology ; Trans-Activators/metabolism ; Transcription Factors/metabolism ; Transcription, Genetic
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 51
    Publikationsdatum: 2003-10-18
    Beschreibung: The Rho guanosine triphosphatases (GTPases) Rac1 and Rac2 are critical signaling regulators in mammalian cells. The deletion of both Rac1 and Rac2 murine alleles leads to a massive egress of hematopoietic stem/progenitor cells (HSC/Ps) into the blood from the marrow, whereas Rac1-/- but not Rac2-/- HSC/Ps fail to engraft in the bone marrow of irradiated recipient mice. In contrast, Rac2, but not Rac1, regulates superoxide production and directed migration in neutrophils, and in each cell type, the two GTPases play distinct roles in actin organization, cell survival, and proliferation. Thus, Rac1 and Rac2 regulate unique aspects of hematopoietic development and function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gu, Yi -- Filippi, Marie-Dominique -- Cancelas, Jose A -- Siefring, Jamie E -- Williams, Emily P -- Jasti, Aparna C -- Harris, Chad E -- Lee, Andrew W -- Prabhakar, Rethinasamy -- Atkinson, Simon J -- Kwiatkowski, David J -- Williams, David A -- DK62757/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2003 Oct 17;302(5644):445-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Experimental Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14564009" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Actins/metabolism ; Animals ; Apoptosis ; Bone Marrow Transplantation ; Cell Adhesion ; Cell Cycle ; Cell Movement ; Cell Size ; Colony-Forming Units Assay ; Cyclin D1/metabolism ; Fibronectins/metabolism ; Hematopoiesis ; Hematopoietic Stem Cell Mobilization ; Hematopoietic Stem Cell Transplantation ; Hematopoietic Stem Cells/*physiology ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Mitogen-Activated Protein Kinases/metabolism ; Neutrophils/*physiology ; *Protein-Serine-Threonine Kinases ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-akt ; Recombination, Genetic ; Signal Transduction ; Stem Cell Factor/pharmacology ; Superoxides/metabolism ; rac GTP-Binding Proteins/genetics/*metabolism ; rac1 GTP-Binding Protein/genetics/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 52
    Publikationsdatum: 2003-12-13
    Beschreibung: Commissural neurons in the mammalian dorsal spinal cord send axons ventrally toward the floor plate, where they cross the midline and turn anteriorly toward the brain; a gradient of chemoattractant(s) inside the spinal cord controls this turning. In rodents, several Wnt proteins stimulate the extension of commissural axons after midline crossing (postcrossing). We found that Wnt4 messenger RNA is expressed in a decreasing anterior-to-posterior gradient in the floor plate, and that a directed source of Wnt4 protein attracted postcrossing commissural axons. Commissural axons in mice lacking the Wnt receptor Frizzled3 displayed anterior-posterior guidance defects after midline crossing. Thus, Wnt-Frizzled signaling guides commissural axons along the anterior-posterior axis of the spinal cord.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lyuksyutova, Anna I -- Lu, Chin-Chun -- Milanesio, Nancy -- King, Leslie A -- Guo, Nini -- Wang, Yanshu -- Nathans, Jeremy -- Tessier-Lavigne, Marc -- Zou, Yimin -- New York, N.Y. -- Science. 2003 Dec 12;302(5652):1984-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Pharmacology and Physiology, University of Chicago, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14671310" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Axons/*physiology/ultrastructure ; Brain/embryology/metabolism ; COS Cells ; Central Nervous System/cytology/*embryology/metabolism ; Cues ; Culture Techniques ; Diffusion ; Frizzled Receptors ; Gene Expression Profiling ; Growth Cones/physiology/ultrastructure ; In Situ Hybridization ; *Membrane Proteins ; Mice ; Mice, Knockout ; Neurons/*physiology ; Proteins/pharmacology ; Proto-Oncogene Proteins/*metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, G-Protein-Coupled/genetics/*metabolism ; *Signal Transduction ; Spinal Cord/*cytology/embryology/metabolism ; Transfection ; Wnt Proteins ; Wnt4 Protein
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 53
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-05-06
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cassman, Marvin -- New York, N.Y. -- Science. 2003 May 2;300(5620):756-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉California Institute for Quantitative Biomedical Research, University of California, San Francisco, CA 94131, USA. mcassman@research.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12730591" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Aplysia/physiology ; B-Lymphocytes/metabolism ; Calcium/metabolism ; *Cell Physiological Phenomena ; *Computational Biology ; *Computer Simulation ; Electrophysiology ; Gene Expression ; Memory ; *Models, Biological ; *Models, Neurological ; Myocytes, Cardiac/metabolism ; Neurons/*physiology ; Neurons, Afferent/physiology ; Proteins/metabolism ; Signal Transduction
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 54
    Publikationsdatum: 2003-02-08
    Beschreibung: Nitric oxide was found to trigger mitochondrial biogenesis in cells as diverse as brown adipocytes and 3T3-L1, U937, and HeLa cells. This effect of nitric oxide was dependent on guanosine 3',5'-monophosphate (cGMP) and was mediated by the induction of peroxisome proliferator-activated receptor gamma coactivator 1alpha, a master regulator of mitochondrial biogenesis. Moreover, the mitochondrial biogenesis induced by exposure to cold was markedly reduced in brown adipose tissue of endothelial nitric oxide synthase null-mutant (eNOS-/-) mice, which had a reduced metabolic rate and accelerated weight gain as compared to wild-type mice. Thus, a nitric oxide-cGMP-dependent pathway controls mitochondrial biogenesis and body energy balance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nisoli, Enzo -- Clementi, Emilio -- Paolucci, Clara -- Cozzi, Valeria -- Tonello, Cristina -- Sciorati, Clara -- Bracale, Renata -- Valerio, Alessandra -- Francolini, Maura -- Moncada, Salvador -- Carruba, Michele O -- New York, N.Y. -- Science. 2003 Feb 7;299(5608):896-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Preclinical Sciences, Center for Study and Research on Obesity, Luigi Sacco Hospital, University of Milan, Milan 20157, Italy. enzo.nisoli@unimi.it〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12574632" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 3T3 Cells ; 8-Bromo Cyclic Adenosine Monophosphate/pharmacology ; Adipocytes/*metabolism/ultrastructure ; Adipose Tissue, Brown/cytology/metabolism/ultrastructure ; Animals ; Cold Temperature ; Cyclic GMP/metabolism ; DNA, Mitochondrial/metabolism ; DNA-Binding Proteins/metabolism ; Eating ; Energy Metabolism ; Female ; HeLa Cells ; High Mobility Group Proteins ; Humans ; Male ; Mice ; Mice, Knockout ; Mitochondria/*metabolism/ultrastructure ; *Mitochondrial Proteins ; Motor Activity ; NF-E2-Related Factor 1 ; Nitric Oxide/*physiology ; Nitric Oxide Synthase/genetics/*metabolism ; Nitric Oxide Synthase Type II ; Nitric Oxide Synthase Type III ; Nuclear Proteins/metabolism ; Nuclear Respiratory Factors ; Oligonucleotides, Antisense/pharmacology ; Oxadiazoles/pharmacology ; Oxygen Consumption ; Penicillamine/*analogs & derivatives/pharmacology ; Quinoxalines/pharmacology ; RNA, Messenger/genetics/metabolism ; Rats ; Signal Transduction ; Trans-Activators/metabolism ; Transcription Factors/metabolism ; U937 Cells ; Weight Gain
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 55
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-04-19
    Beschreibung: The mammalian auditory cortex normally undergoes rapid and progressive functional maturation. Here we show that rearing infant rat pups in continuous, moderate-level noise delayed the emergence of adultlike topographic representational order and the refinement of response selectivity in the primary auditory cortex (A1) long beyond normal developmental benchmarks. When those noise-reared adult rats were subsequently exposed to a pulsed pure-tone stimulus, A1 rapidly reorganized, demonstrating that exposure-driven plasticity characteristic of the critical period was still ongoing. These results demonstrate that A1 organization is shaped by a young animal's exposure to salient, structured acoustic inputs-and implicate noise as a risk factor for abnormal child development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chang, Edward F -- Merzenich, Michael M -- NS-10414/NS/NINDS NIH HHS/ -- NS-38416/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Apr 18;300(5618):498-502.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉W. M. Keck Center for Integrative Neuroscience, University of California, San Francisco, CA, USA. echang@itsa.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12702879" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acoustic Stimulation ; Animals ; Animals, Newborn ; Auditory Cortex/*growth & development/physiology ; Brain Mapping ; Electrophysiology ; Female ; Neuronal Plasticity ; Neurons/*physiology ; Noise/*adverse effects ; Rats ; Rats, Sprague-Dawley ; Time Factors
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 56
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-09-27
    Beschreibung: This viewpoint comments on recent advances in understanding the design principles of biological networks. It highlights the surprising discovery of "good-engineering" principles in biochemical circuitry that evolved by random tinkering.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Alon, U -- New York, N.Y. -- Science. 2003 Sep 26;301(5641):1866-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel 76100. urialon@weizmann.ac.il〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14512615" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biochemical Phenomena ; Biochemistry ; *Biological Evolution ; *Biology ; DNA/metabolism ; Engineering ; *Models, Biological ; Proteins/metabolism ; Signal Transduction ; Systems Theory
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 57
    Publikationsdatum: 2003-03-29
    Beschreibung: Acetyl-coenzyme A carboxylases (ACCs) are required for the biosynthesis and oxidation of long-chain fatty acids. They are targets for therapeutics against obesity and diabetes, and several herbicides function by inhibiting their carboxyltransferase (CT) domain. We determined the crystal structure of the free enzyme and the coenzyme A complex of yeast CT at 2.7 angstrom resolution and found that it comprises two domains, both belonging to the crotonase/ClpP superfamily. The active site is at the interface of a dimer. Mutagenesis and kinetic studies reveal the functional roles of conserved residues here. The herbicides target the active site of CT, providing a lead for inhibitor development against human ACCs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Hailong -- Yang, Zhiru -- Shen, Yang -- Tong, Liang -- New York, N.Y. -- Science. 2003 Mar 28;299(5615):2064-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Columbia University, New York, NY 10027, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12663926" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetyl-CoA Carboxylase/antagonists & inhibitors/*chemistry/genetics/metabolism ; Amino Acid Sequence ; Binding Sites ; Biotin/chemistry/metabolism ; Catalysis ; Coenzyme A/chemistry/metabolism ; Crystallography, X-Ray ; Dimerization ; Enzyme Inhibitors/metabolism/pharmacology ; Hydrogen Bonding ; Kinetics ; Molecular Sequence Data ; Mutagenesis ; Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Pyridines/metabolism/pharmacology ; Saccharomyces cerevisiae/*enzymology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 58
    Publikationsdatum: 2003-05-15
    Beschreibung: A novel coronavirus has been identified as the causative agent of severe acute respiratory syndrome (SARS). The viral main proteinase (Mpro, also called 3CLpro), which controls the activities of the coronavirus replication complex, is an attractive target for therapy. We determined crystal structures for human coronavirus (strain 229E) Mpro and for an inhibitor complex of porcine coronavirus [transmissible gastroenteritis virus (TGEV)] Mpro, and we constructed a homology model for SARS coronavirus (SARS-CoV) Mpro. The structures reveal a remarkable degree of conservation of the substrate-binding sites, which is further supported by recombinant SARS-CoV Mpro-mediated cleavage of a TGEV Mpro substrate. Molecular modeling suggests that available rhinovirus 3Cpro inhibitors may be modified to make them useful for treating SARS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anand, Kanchan -- Ziebuhr, John -- Wadhwani, Parvesh -- Mesters, Jeroen R -- Hilgenfeld, Rolf -- New York, N.Y. -- Science. 2003 Jun 13;300(5626):1763-7. Epub 2003 May 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Biochemistry, University of Lubeck, D-23538 Lubeck, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12746549" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Chloromethyl Ketones/chemistry/metabolism ; Amino Acid Sequence ; *Antiviral Agents ; Binding Sites ; Catalytic Domain ; Coronavirus 229E, Human/*enzymology ; Crystallization ; Crystallography, X-Ray ; Cysteine Endopeptidases/*chemistry/metabolism ; Cysteine Proteinase Inhibitors/chemistry/metabolism ; Dimerization ; *Drug Design ; Humans ; Isoxazoles/chemistry/metabolism/pharmacology ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Pyrrolidinones/chemistry/metabolism/pharmacology ; Recombinant Proteins/chemistry/metabolism ; SARS Virus/*drug effects/*enzymology ; Sequence Alignment ; Sequence Homology, Amino Acid ; Severe Acute Respiratory Syndrome/drug therapy ; Transmissible gastroenteritis virus/enzymology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 59
    Publikationsdatum: 2003-03-22
    Beschreibung: There are two types of inhibitory postsynaptic potentials in the cerebral cortex. Fast inhibition is mediated by ionotropic gamma-aminobutyric acid type A (GABA(A)) receptors, and slow inhibition is due to metabotropic GABA(B) receptors. Several neuron classes elicit inhibitory postsynaptic potentials through GABA(A) receptors, but possible distinct sources of slow inhibition remain unknown. We identified a class of GABAergic interneurons, the neurogliaform cells, that, in contrast to other GABA-releasing cells, elicited combined GABA(A) and GABA(B) receptor-mediated responses with single action potentials and that predominantly targeted the dendritic spines of pyramidal neurons. Slow inhibition evoked by a distinct interneuron in spatially restricted postsynaptic compartments could locally and selectively modulate cortical excitability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tamas, Gabor -- Lorincz, Andrea -- Simon, Andrea -- Szabadics, Janos -- New York, N.Y. -- Science. 2003 Mar 21;299(5614):1902-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Comparative Physiology, University of Szeged, Kozep fasor 52, Szeged H-6726, Hungary. gtamas@bio.u-szeged.hu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12649485" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Action Potentials ; Animals ; Bicuculline/pharmacology ; Dendrites/physiology ; Evoked Potentials ; GABA Antagonists/pharmacology ; GABA-A Receptor Antagonists ; GABA-B Receptor Antagonists ; Interneurons/*physiology/ultrastructure ; Neocortex/cytology/*physiology ; *Neural Inhibition ; Organophosphorus Compounds/pharmacology ; Patch-Clamp Techniques ; Pyramidal Cells/*physiology ; Pyridazines/pharmacology ; Rats ; Rats, Wistar ; Receptors, GABA-A/physiology ; Receptors, GABA-B/physiology ; Somatosensory Cortex/cytology/*physiology ; Synapses/physiology/ultrastructure ; *Synaptic Transmission
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 60
    Publikationsdatum: 2003-09-06
    Beschreibung: To comprehensively identify integral membrane proteins of the nuclear envelope (NE), we prepared separately NEs and organelles known to cofractionate with them from liver. Proteins detected by multidimensional protein identification technology in the cofractionating organelles were subtracted from the NE data set. In addition to all 13 known NE integral proteins, 67 uncharacterized open reading frames with predicted membrane-spanning regions were identified. All of the eight proteins tested targeted to the NE, indicating that there are substantially more integral proteins of the NE than previously thought. Furthermore, 23 of these mapped within chromosome regions linked to a variety of dystrophies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schirmer, Eric C -- Florens, Laurence -- Guan, Tinglu -- Yates, John R 3rd -- Gerace, Larry -- F32 GM19085/GM/NIGMS NIH HHS/ -- GM28521/GM/NIGMS NIH HHS/ -- RR11823/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2003 Sep 5;301(5638):1380-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12958361" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Algorithms ; Animals ; Cell Fractionation ; Chromosome Mapping ; DNA, Complementary ; Genetic Diseases, Inborn/*genetics ; Genetic Linkage ; Humans ; Liver/chemistry/ultrastructure ; Membrane Proteins/*analysis/genetics/isolation & purification ; Mice ; Mice, Inbred Strains ; Nuclear Envelope/*chemistry ; Nuclear Proteins/*analysis/genetics/isolation & purification ; Open Reading Frames ; Protein Structure, Tertiary ; *Proteomics ; Rats ; Rats, Sprague-Dawley
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 61
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-03-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knowles, Jeremy -- New York, N.Y. -- Science. 2003 Mar 28;299(5615):2002-3. Epub 2003 Mar 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA. jeremy_knowles@harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12637674" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Binding Sites ; *Catalysis ; Chemistry, Physical ; Crystallization ; Crystallography, X-Ray ; Glucose-6-Phosphate/*analogs & derivatives/chemistry/metabolism ; Glucosephosphates/chemistry/metabolism ; Hydrogen Bonding ; Phosphoglucomutase/*chemistry/*metabolism ; Phosphoranes/chemistry ; Phosphorus/*chemistry ; Phosphorylation ; Physicochemical Phenomena ; Temperature
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 62
    Publikationsdatum: 2003-05-31
    Beschreibung: In the genetic code, UGA serves as a stop signal and a selenocysteine codon, but no computational methods for identifying its coding function are available. Consequently, most selenoprotein genes are misannotated. We identified selenoprotein genes in sequenced mammalian genomes by methods that rely on identification of selenocysteine insertion RNA structures, the coding potential of UGA codons, and the presence of cysteine-containing homologs. The human selenoproteome consists of 25 selenoproteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kryukov, Gregory V -- Castellano, Sergi -- Novoselov, Sergey V -- Lobanov, Alexey V -- Zehtab, Omid -- Guigo, Roderic -- Gladyshev, Vadim N -- GM61603/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 May 30;300(5624):1439-43.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Nebraska, Lincoln, NE 68588-0664, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12775843" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Base Sequence ; Codon ; Codon, Terminator ; Computational Biology ; DNA Transposable Elements ; Gene Expression Profiling ; Genome, Human ; Humans ; Mice ; Molecular Sequence Data ; Open Reading Frames ; Proteins/*chemistry/*genetics ; *Proteome ; Rats ; *Selenium ; Selenocysteine/chemistry/*genetics ; Selenoproteins ; Sequence Alignment ; Sequence Analysis, DNA ; Sequence Homology, Amino Acid ; Software
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 63
    Publikationsdatum: 2003-11-25
    Beschreibung: A major challenge of computational protein design is the creation of novel proteins with arbitrarily chosen three-dimensional structures. Here, we used a general computational strategy that iterates between sequence design and structure prediction to design a 93-residue alpha/beta protein called Top7 with a novel sequence and topology. Top7 was found experimentally to be folded and extremely stable, and the x-ray crystal structure of Top7 is similar (root mean square deviation equals 1.2 angstroms) to the design model. The ability to design a new protein fold makes possible the exploration of the large regions of the protein universe not yet observed in nature.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kuhlman, Brian -- Dantas, Gautam -- Ireton, Gregory C -- Varani, Gabriele -- Stoddard, Barry L -- Baker, David -- New York, N.Y. -- Science. 2003 Nov 21;302(5649):1364-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14631033" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Algorithms ; Amino Acid Sequence ; Circular Dichroism ; Computational Biology ; Computer Graphics ; Computer Simulation ; Crystallization ; Crystallography, X-Ray ; Databases, Protein ; Models, Molecular ; Molecular Sequence Data ; Monte Carlo Method ; Nuclear Magnetic Resonance, Biomolecular ; *Protein Conformation ; Protein Denaturation ; *Protein Engineering ; *Protein Folding ; Protein Structure, Secondary ; Proteins/*chemistry ; *Software ; Solubility ; Temperature ; Thermodynamics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 64
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-10-18
    Beschreibung: Unfolded proteins in the endoplasmic reticulum cause trans-autophosphorylation of the bifunctional transmembrane kinase Ire1, which induces its endoribonuclease activity. The endoribonuclease initiates nonconventional splicing of HAC1 messenger RNA to trigger the unfolded-protein response (UPR). We explored the role of Ire1's kinase domain by sensitizing it through site-directed mutagenesis to the ATP-competitive inhibitor 1NM-PP1. Paradoxically, rather than being inhibited by 1NM-PP1, drug-sensitized Ire1 mutants required 1NM-PP1 as a cofactor for activation. In the presence of 1NM-PP1, drug-sensitized Ire1 bypassed mutations that inactivate its kinase activity and induced a full UPR. Thus, rather than through phosphorylation per se, a conformational change in the kinase domain triggered by occupancy of the active site with a ligand leads to activation of all known downstream functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Papa, Feroz R -- Zhang, Chao -- Shokat, Kevan -- Walter, Peter -- AI44009/AI/NIAID NIH HHS/ -- GM32384/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Nov 28;302(5650):1533-7. Epub 2003 Oct 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco, CA 94143-2200, USA. frpapa@medicine.ucsf.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14564015" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenosine Diphosphate/pharmacology ; Adenosine Triphosphate/analogs & derivatives/chemistry/*metabolism/pharmacology ; Basic-Leucine Zipper Transcription Factors ; Binding Sites ; Binding, Competitive ; Cytosol/metabolism ; Dithiothreitol/pharmacology ; Endoplasmic Reticulum/*metabolism ; Endoribonucleases/metabolism ; Enzyme Activation ; Ligands ; Membrane Glycoproteins/antagonists & inhibitors/*chemistry/genetics/*metabolism ; Models, Biological ; Mutagenesis, Site-Directed ; Phosphorylation ; Protein Conformation ; *Protein Folding ; Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases/antagonists & ; inhibitors/*chemistry/genetics/*metabolism ; Pyrazoles/chemistry/*metabolism/*pharmacology ; Pyrimidines/chemistry/*metabolism/*pharmacology ; RNA Splicing ; RNA, Messenger/genetics/metabolism ; Repressor Proteins/genetics/metabolism ; Saccharomyces cerevisiae Proteins/antagonists & ; inhibitors/*chemistry/genetics/*metabolism ; Signal Transduction ; Structure-Activity Relationship ; Substrate Specificity ; Transcription Factors/genetics/metabolism ; Up-Regulation
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 65
    Publikationsdatum: 2003-03-22
    Beschreibung: Local circuits in the spinal cord that generate locomotion are termed central pattern generators (CPGs). These provide coordinated bilateral control over the normal limb alternation that underlies walking. The molecules that organize the mammalian CPG are unknown. Isolated spinal cords from mice lacking either the EphA4 receptor or its ligand ephrinB3 have lost left-right limb alternation and instead exhibit synchrony. We identified EphA4-positive neurons as an excitatory component of the locomotor CPG. Our study shows that dramatic locomotor changes can occur as a consequence of local genetic rewiring and identifies genes required for the development of normal locomotor behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kullander, Klas -- Butt, Simon J B -- Lebret, James M -- Lundfald, Line -- Restrepo, Carlos E -- Rydstrom, Anna -- Klein, Rudiger -- Kiehn, Ole -- New York, N.Y. -- Science. 2003 Mar 21;299(5614):1889-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Biochemistry, Gothenburg University, Medicinaregatan 9 A, 405 30 Gothenburg, Sweden. klas.kullander@medkem.gu.se〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12649481" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Axons/physiology ; Bicuculline/pharmacology ; Carrier Proteins/genetics/metabolism ; Electrophysiology ; Ephrin-B3/genetics/*physiology ; Gait ; In Vitro Techniques ; Interneurons/physiology ; *Membrane Transport Proteins ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Motor Activity ; Neurons/*physiology ; Nipecotic Acids/pharmacology ; Receptor, EphA4/genetics/*physiology ; Sarcosine/pharmacology ; Signal Transduction ; Spinal Cord/*physiology ; Spinal Nerve Roots/physiology ; Strychnine/pharmacology ; Vesicular Glutamate Transport Protein 1 ; Vesicular Glutamate Transport Protein 2 ; *Vesicular Transport Proteins ; *Walking
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 66
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-04-05
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martin, Paul -- Parkhurst, Susan M -- New York, N.Y. -- Science. 2003 Apr 4;300(5616):63-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy, University College London, Gower Street, London WC1E 6BT, UK. paul.martin@ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12677046" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Adhesion ; Cell Polarity ; Drosophila/*embryology/genetics ; Embryo, Nonmammalian/*physiology ; Embryonic Development ; Epithelial Cells/physiology ; Epithelium/physiology ; Genes, Insect ; Lasers ; Mathematics ; Microsurgery ; *Models, Biological ; *Morphogenesis ; Mutation ; Signal Transduction
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 67
    Publikationsdatum: 2003-10-18
    Beschreibung: Despite a central circadian role in Drosophila for the transcriptional regulator Timeless (dTim), the relevance of mammalian Timeless (mTim) remains equivocal. Conditional knockdown of mTim protein expression in the rat suprachiasmatic nucleus (SCN) disrupted SCN neuronal activity rhythms, and altered levels of known core clock elements. Full-length mTim protein (mTIM-fl) exhibited a 24-hour oscillation, where as a truncated isoform (mTIM-s) was constitutively expressed. mTIM-fl associated with the mammalian clock Period proteins (mPERs) in oscillating SCN cells. These data suggest that mTim is required for rhythmicity and is a functional homolog of dTim on the negative-feedback arm of the mammalian molecular clockwork.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barnes, Jessica W -- Tischkau, Shelley A -- Barnes, Jeffrey A -- Mitchell, Jennifer W -- Burgoon, Penny W -- Hickok, Jason R -- Gillette, Martha U -- GM07143/GM/NIGMS NIH HHS/ -- HL67007/HL/NHLBI NIH HHS/ -- NS10170/NS/NINDS NIH HHS/ -- NS11134/NS/NINDS NIH HHS/ -- NS11158/NS/NINDS NIH HHS/ -- NS22155/NS/NINDS NIH HHS/ -- NS35859/NS/NINDS NIH HHS/ -- R01 HL067007/HL/NHLBI NIH HHS/ -- R01 NS022155/NS/NINDS NIH HHS/ -- R01 NS035859/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2003 Oct 17;302(5644):439-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Structural Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14564007" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biological Clocks ; Cell Cycle Proteins ; Cell Line ; *Circadian Rhythm ; Cryptochromes ; *Drosophila Proteins ; Electrophysiology ; *Eye Proteins ; Flavoproteins/metabolism ; Humans ; In Vitro Techniques ; Intracellular Signaling Peptides and Proteins ; Neurons/physiology ; Nuclear Proteins/metabolism ; Oligonucleotides, Antisense/pharmacology ; Period Circadian Proteins ; *Photoreceptor Cells, Invertebrate ; RNA Interference ; RNA, Messenger/genetics/metabolism ; Rats ; Rats, Inbred Strains ; Receptors, G-Protein-Coupled ; Reverse Transcriptase Polymerase Chain Reaction ; Suprachiasmatic Nucleus/*physiology ; Transcription Factors/chemistry/genetics/*metabolism ; Transfection
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 68
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-01-04
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, Marcia -- New York, N.Y. -- Science. 2003 Jan 3;299(5603):32-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12511626" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain/cytology/*physiology ; Cell Differentiation ; Cell Division ; Cell Survival ; Dentate Gyrus/cytology/*physiology ; Female ; Humans ; *Learning ; Male ; Memory ; Mice ; Neurons/*physiology ; Odors ; Olfactory Bulb/cytology/physiology ; Pregnancy ; Prolactin/*physiology ; Rats ; Receptors, Prolactin/genetics/physiology ; Seasons ; Smell ; Songbirds/physiology ; Stem Cells/physiology ; Vocalization, Animal
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 69
    Publikationsdatum: 2003-08-16
    Beschreibung: Genes associated with Hirschsprung disease, a failure to form enteric ganglia in the hindgut, were highly up-regulated in gut neural crest stem cells relative to whole-fetus RNA. One of these genes, the glial cell line-derived neurotrophic factor (GDNF) receptor Ret, was necessary for neural crest stem cell migration in the gut. GDNF promoted the migration of neural crest stem cells in culture but did not affect their survival or proliferation. Gene expression profiling, combined with reverse genetics and analyses of stem cell function, suggests that Hirschsprung disease is caused by defects in neural crest stem cell function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2614078/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2614078/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Iwashita, Toshihide -- Kruger, Genevieve M -- Pardal, Ricardo -- Kiel, Mark J -- Morrison, Sean J -- CA46592/CA/NCI NIH HHS/ -- DK58771/DK/NIDDK NIH HHS/ -- NIH5P60-DK20572/DK/NIDDK NIH HHS/ -- P30 AR48310/AR/NIAMS NIH HHS/ -- P60-AR20557/AR/NIAMS NIH HHS/ -- R01 NS040750/NS/NINDS NIH HHS/ -- R01 NS040750-01/NS/NINDS NIH HHS/ -- R01 NS40750-01/NS/NINDS NIH HHS/ -- R21 HD40760-02/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2003 Aug 15;301(5635):972-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109-0934, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12920301" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Differentiation ; Cell Division ; Cell Movement ; Cell Separation ; Cell Survival ; Cells, Cultured ; Digestive System/cytology/*embryology/innervation/metabolism ; Fetus/metabolism ; Gene Expression Profiling ; *Gene Expression Regulation, Developmental ; Glial Cell Line-Derived Neurotrophic Factor ; Glial Cell Line-Derived Neurotrophic Factor Receptors ; Hirschsprung Disease/*etiology/genetics ; Mice ; Multipotent Stem Cells/*physiology ; Nerve Growth Factors/genetics/metabolism/pharmacology ; Neural Crest/*cytology/physiology ; Oligonucleotide Array Sequence Analysis ; Proto-Oncogene Proteins/*genetics/metabolism ; Proto-Oncogene Proteins c-ret ; Rats ; Rats, Sprague-Dawley ; Receptor Protein-Tyrosine Kinases/*genetics/metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Signal Transduction ; Up-Regulation
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 70
    Publikationsdatum: 2003-11-01
    Beschreibung: In the mouse olfactory system, each olfactory sensory neuron (OSN) expresses only one odorant receptor (OR) gene in a monoallelic and mutually exclusive manner. Such expression forms the genetic basis for OR-instructed axonal projection of OSNs to the olfactory bulb of the brain during development. Here, we identify an upstream cis-acting DNA region that activates the OR gene cluster in mouse and allows the expression of only one OR gene within the cluster. Deletion of the coding region of the expressed OR gene or a naturally occurring frame-shift mutation allows a second OR gene to be expressed. We propose that stochastic activation of only one OR gene within the cluster and negative feedback regulation by that OR gene product are necessary to ensure the one receptor-one neuron rule.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Serizawa, Shou -- Miyamichi, Kazunari -- Nakatani, Hiroko -- Suzuki, Misao -- Saito, Michiko -- Yoshihara, Yoshihiro -- Sakano, Hitoshi -- New York, N.Y. -- Science. 2003 Dec 19;302(5653):2088-94. Epub 2003 Oct 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biophysics and Biochemistry, Graduate School of Science, University of Tokyo, Tokyo 113-0032, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593185" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alleles ; Animals ; Axons/physiology ; Chromosomes, Artificial, Yeast ; Conserved Sequence ; *Feedback, Physiological ; Frameshift Mutation ; *Gene Expression Regulation ; Gene Silencing ; In Situ Hybridization ; *Locus Control Region ; Mice ; Mice, Transgenic ; Multigene Family ; Olfactory Bulb/cytology ; Olfactory Receptor Neurons/*metabolism ; Promoter Regions, Genetic ; Pseudogenes ; Receptors, Odorant/*genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Transgenes
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 71
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-12-06
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jaffe, Aron B -- Hall, Alan -- New York, N.Y. -- Science. 2003 Dec 5;302(5651):1690-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MRC Laboratory for Molecular Cell Biology and Cell Biology Unit, University College London, London WC1E 6BT, UK. a.jaffe@ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14657480" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Membrane/*metabolism ; *Cell Movement ; *Cell Polarity ; GTPase-Activating Proteins/metabolism ; Guanine Nucleotide Exchange Factors/metabolism ; Guanosine Triphosphate/metabolism ; Humans ; Mice ; Protein Kinase C/metabolism ; Pseudopodia/metabolism ; Signal Transduction ; Ubiquitin/metabolism ; Ubiquitin-Protein Ligases/*metabolism ; cdc42 GTP-Binding Protein/metabolism ; rac GTP-Binding Proteins/metabolism ; rho GTP-Binding Proteins/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 72
    Publikationsdatum: 2003-05-17
    Beschreibung: Asymmetric divisions are crucial for generating cell diversity; they rely on coupling between polarity cues and spindle positioning, but how this coupling is achieved is poorly understood. In one-cell stage Caenorhabditis elegans embryos, polarity cues set by the PAR proteins mediate asymmetric spindle positioning by governing an imbalance of net pulling forces acting on spindle poles. We found that the GoLoco-containing proteins GPR-1 and GPR-2, as well as the Galpha subunits GOA-1 and GPA-16, were essential for generation of proper pulling forces. GPR-1/2 interacted with guanosine diphosphate-bound GOA-1 and were enriched on the posterior cortex in a par-3- and par-2-dependent manner. Thus, the extent of net pulling forces may depend on cortical Galpha activity, which is regulated by anterior-posterior polarity cues through GPR-1/2.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Colombo, Kelly -- Grill, Stephan W -- Kimple, Randall J -- Willard, Francis S -- Siderovski, David P -- Gonczy, Pierre -- GM62338/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Jun 20;300(5627):1957-61. Epub 2003 May 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Swiss Institute for Experimental Cancer Research (ISREC), 1066 Epalinges/Lausanne, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12750478" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Genetically Modified ; Caenorhabditis elegans/cytology/*embryology/genetics/physiology ; Caenorhabditis elegans Proteins/genetics/*metabolism ; *Cell Division ; *Cell Polarity ; Cues ; GTP-Binding Proteins/genetics/metabolism ; Phenotype ; Protein Subunits/genetics/metabolism ; RNA Interference ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Spindle Apparatus/*physiology/ultrastructure ; Two-Hybrid System Techniques
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 73
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-10-04
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Service, Robert F -- New York, N.Y. -- Science. 2003 Oct 3;302(5642):46-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14526056" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Cell Differentiation ; Cells, Cultured ; Hydrocarbons ; Mice ; *Nanotechnology ; Neurons/*cytology ; *Peptides/chemistry ; Rats ; Spinal Cord Injuries/therapy ; Stem Cells/*cytology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 74
    Publikationsdatum: 2003-03-15
    Beschreibung: Members of the Toll-like receptor (TLR) and interleukin-1 receptor (IL-1R) superfamily share an intracytoplasmic Toll-IL-1 receptor (TIR) domain, which mediates recruitment of the interleukin-1 receptor-associated kinase (IRAK) complex via TIR-containing adapter molecules. We describe three unrelated children with inherited IRAK-4 deficiency. Their blood and fibroblast cells did not activate nuclear factor kappaB and mitogen-activated protein kinase (MAPK) and failed to induce downstream cytokines in response to any of the known ligands of TIR-bearing receptors. The otherwise healthy children developed infections caused by pyogenic bacteria. These findings suggest that, in humans, the TIR-IRAK signaling pathway is crucial for protective immunity against specific bacteria but is redundant against most other microorganisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Picard, Capucine -- Puel, Anne -- Bonnet, Marion -- Ku, Cheng-Lung -- Bustamante, Jacinta -- Yang, Kun -- Soudais, Claire -- Dupuis, Stephanie -- Feinberg, Jacqueline -- Fieschi, Claire -- Elbim, Carole -- Hitchcock, Remi -- Lammas, David -- Davies, Graham -- Al-Ghonaium, Abdulaziz -- Al-Rayes, Hassan -- Al-Jumaah, Sulaiman -- Al-Hajjar, Sami -- Al-Mohsen, Ibrahim Zaid -- Frayha, Husn H -- Rucker, Rajivi -- Hawn, Thomas R -- Aderem, Alan -- Tufenkeji, Haysam -- Haraguchi, Soichi -- Day, Noorbibi K -- Good, Robert A -- Gougerot-Pocidalo, Marie-Anne -- Ozinsky, Adrian -- Casanova, Jean-Laurent -- New York, N.Y. -- Science. 2003 Mar 28;299(5615):2076-9. Epub 2003 Mar 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Genetique Humaine des Maladies Infectieuses, Universite Rene Descartes-INSERM U550, Faculte Necker, 156 rue de Vaugirard, 75015 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12637671" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Alleles ; Child ; Codon, Terminator ; Cytokines/secretion ; *Drosophila Proteins ; Female ; Fibroblasts/immunology ; Humans ; Interleukin-1 Receptor-Associated Kinases ; Interleukins/immunology/secretion ; Lipopolysaccharides/immunology ; Male ; Membrane Glycoproteins/chemistry/immunology/metabolism ; Monocytes/immunology ; Mutation ; Neutrophils/immunology ; Pedigree ; Phosphotransferases (Alcohol Group Acceptor)/*deficiency/*genetics/metabolism ; Pneumococcal Infections/*immunology/metabolism ; Protein Structure, Tertiary ; Receptors, Cell Surface/chemistry/immunology/metabolism ; Receptors, Interleukin/immunology ; Receptors, Interleukin-1/chemistry ; Signal Transduction ; Staphylococcal Infections/*immunology/metabolism ; Toll-Like Receptors ; Tumor Necrosis Factor-alpha/immunology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 75
    Publikationsdatum: 2003-06-07
    Beschreibung: Although the role of Toll-like receptors in extracellular bacterial sensing has been investigated intensively, intracellular detection of bacteria through Nod molecules remains largely uncharacterized. Here, we show that human Nod1 specifically detects a unique diaminopimelate-containing N-acetylglucosamine-N-acetylmuramic acid (GlcNAc-MurNAc) tripeptide motif found in Gram-negative bacterial peptidoglycan, resulting in activation of the transcription factor NF-kappaB pathway. Moreover, we show that in epithelial cells (which represent the first line of defense against invasive pathogens), Nod1is indispensable for intracellular Gram-negative bacterial sensing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Girardin, Stephen E -- Boneca, Ivo G -- Carneiro, Leticia A M -- Antignac, Aude -- Jehanno, Muguette -- Viala, Jerome -- Tedin, Karsten -- Taha, Muhamed-Kheir -- Labigne, Agnes -- Zahringer, Ulrich -- Coyle, Anthony J -- DiStefano, Peter S -- Bertin, John -- Sansonetti, Philippe J -- Philpott, Dana J -- New York, N.Y. -- Science. 2003 Jun 6;300(5625):1584-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Unite de Pathogenie Microbienne Moleculaire, INSERM U389, Institut Pasteur, 28, Rue du Dr. Roux, 75724Paris Cedex 15, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12791997" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Adaptor Proteins, Signal Transducing ; Amino Acid Motifs ; Animals ; Antigens, Differentiation/metabolism ; Carrier Proteins/chemistry/metabolism/*physiology ; Cell Line ; Cytoplasm/microbiology ; Epithelial Cells/metabolism/microbiology ; Gram-Negative Bacteria/*chemistry/immunology ; Gram-Positive Bacteria/chemistry/immunology ; Humans ; Immunity, Innate ; Interleukin-8/metabolism ; *Intracellular Signaling Peptides and Proteins ; Lipopolysaccharides/pharmacology ; Mice ; Myeloid Differentiation Factor 88 ; NF-kappa B/chemistry/metabolism ; Nod1 Signaling Adaptor Protein ; Nod2 Signaling Adaptor Protein ; Oligopeptides/*analysis/chemistry ; Peptidoglycan/*chemistry/pharmacology ; Protein Structure, Tertiary ; Receptors, Immunologic/metabolism ; Signal Transduction ; Trisaccharides/*analysis/chemistry
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 76
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-02-15
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin, Jennifer -- New York, N.Y. -- Science. 2003 Feb 14;299(5609):1002-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12586919" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Bone Neoplasms/secondary ; Breast Neoplasms/pathology ; Cell Adhesion ; Cell Movement ; Chemokines/metabolism ; Embryo, Nonmammalian/cytology ; Gene Expression Profiling ; Genes, Tumor Suppressor ; Humans ; *Neoplasm Metastasis/genetics/pathology/physiopathology ; Neoplasm Seeding ; Neoplastic Cells, Circulating ; Neoplastic Stem Cells/physiology ; Oligonucleotide Array Sequence Analysis ; Receptors, Chemokine/metabolism ; Signal Transduction ; Stem Cells/physiology ; Transforming Growth Factor beta/physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 77
    Publikationsdatum: 2003-01-04
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walther, Diego J -- Peter, Jens-Uwe -- Bashammakh, Saleh -- Hortnagl, Heide -- Voits, Mechthild -- Fink, Heidrun -- Bader, Michael -- New York, N.Y. -- Science. 2003 Jan 3;299(5603):76.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Delbruck Center for Molecular Medicine (MDC), Robert-Rossle-Strasse 10, D-13092 Berlin-Buch, Germany. dwalther@mdc-berlin.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12511643" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Brain/*enzymology/metabolism ; COS Cells ; Cloning, Molecular ; Conserved Sequence ; DNA, Complementary ; Duodenum/enzymology/metabolism ; Humans ; Hydroxylation ; Isoenzymes/chemistry/genetics/metabolism ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; RNA, Messenger/genetics/metabolism ; Rats ; Serotonin/*biosynthesis ; Transfection ; Tryptophan Hydroxylase/chemistry/genetics/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 78
    Publikationsdatum: 2003-01-04
    Beschreibung: Neurogenesis occurs in the olfactory system of the adult brain throughout life, in both invertebrates and vertebrates, but its physiological regulation is not understood. We show that the production of neuronal progenitors is stimulated in the forebrain subventricular zone of female mice during pregnancy and that this effect is mediated by the hormone prolactin. The progenitors then migrate to produce new olfactory interneurons, a process likely to be important for maternal behavior, because olfactory discrimination is critical for recognition and rearing of offspring. Neurogenesis occurs even in females that mate with sterile males. These findings imply that forebrain olfactory neurogenesis may contribute to adaptive behaviors in mating and pregnancy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shingo, Tetsuro -- Gregg, Christopher -- Enwere, Emeka -- Fujikawa, Hirokazu -- Hassam, Rozina -- Geary, Colleen -- Cross, James C -- Weiss, Samuel -- New York, N.Y. -- Science. 2003 Jan 3;299(5603):117-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genes & Development Research Group, Department of Cell Biology and Anatomy, University of Calgary Faculty of Medicine, Calgary, Alberta, Canada T2N 4N1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12511652" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Differentiation ; Cell Division ; Cell Movement ; Cells, Cultured ; Choroid Plexus/metabolism ; Dentate Gyrus/cytology ; Epidermal Growth Factor/pharmacology ; Estradiol/administration & dosage/pharmacology ; Female ; Interneurons/cytology/*physiology ; Male ; Mice ; Neurons/cytology/*physiology ; Olfactory Bulb/*cytology ; Pregnancy ; Progesterone/administration & dosage/pharmacology ; Prolactin/administration & dosage/blood/pharmacology/*physiology ; Prosencephalon/*cytology/*physiology ; Pseudopregnancy ; Receptors, Prolactin/genetics/metabolism ; Signal Transduction ; Stem Cells/*cytology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 79
    Publikationsdatum: 2003-12-03
    Beschreibung: The early genetic pathway(s) triggering the pathogenesis of coronary artery disease (CAD) and myocardial infarction (MI) remain largely unknown. Here, we describe an autosomal dominant form of CAD/MI (adCAD1) that is caused by the deletion of seven amino acids in transcription factor MEF2A. The deletion disrupts nuclear localization of MEF2A, reduces MEF2A-mediated transcription activation, and abolishes synergistic activation by MEF2A and by the transcription factor GATA-1 through a dominant-negative mechanism. The MEF2A protein demonstrates strong expression in the endothelium of coronary arteries. These results identify a pathogenic gene for a familial vascular disease with features of CAD and implicate the MEF2A signaling pathway in the pathogenesis of CAD/MI.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1618876/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1618876/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Lejin -- Fan, Chun -- Topol, Sarah E -- Topol, Eric J -- Wang, Qing -- R01 HL065630/HL/NHLBI NIH HHS/ -- R01 HL066251/HL/NHLBI NIH HHS/ -- R01 HL65630/HL/NHLBI NIH HHS/ -- R01 HL66251/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2003 Nov 28;302(5650):1578-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Cardiovascular Genetics, Department of Cardiovascular Medicine, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH 44195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14645853" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Aged ; Amino Acid Sequence ; Animals ; Arteries/metabolism ; Base Sequence ; Cell Nucleus/metabolism ; Chromosomes, Human, Pair 15/genetics ; Coronary Artery Disease/*genetics/metabolism ; Coronary Vessels/metabolism ; DNA-Binding Proteins/chemistry/*genetics/metabolism ; Dimerization ; Endothelium, Vascular/metabolism ; Erythroid-Specific DNA-Binding Factors ; Female ; Fluorescent Antibody Technique ; GATA1 Transcription Factor ; Gene Expression ; Genes, Dominant ; Genetic Linkage ; Genetic Markers ; Genetic Predisposition to Disease ; Humans ; MADS Domain Proteins ; MEF2 Transcription Factors ; Male ; Middle Aged ; Molecular Sequence Data ; Muscle, Smooth/cytology/metabolism ; Myocardial Infarction/*genetics/metabolism ; Myogenic Regulatory Factors ; Pedigree ; Protein Binding ; Protein Conformation ; Protein Structure, Tertiary ; Protein Transport ; Rats ; Risk Factors ; *Sequence Deletion ; Signal Transduction ; Transcription Factors/chemistry/*genetics/metabolism ; Transcriptional Activation
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 80
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-06-21
    Beschreibung: Spore formation by the bacterium Bacillus subtilis is an elaborate developmental process that is triggered by nutrient limitation. Here we report that cells that have entered the pathway to sporulate produce and export a killing factor and a signaling protein that act cooperatively to block sister cells from sporulating and to cause them to lyse. The sporulating cells feed on the nutrients thereby released, which allows them to keep growing rather than to complete morphogenesis. We propose that sporulation is a stress-response pathway of last resort and that B. subtilis delays a commitment to spore formation by cannibalizing its siblings.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gonzalez-Pastor, Jose E -- Hobbs, Errett C -- Losick, Richard -- GM18568/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Jul 25;301(5632):510-3. Epub 2003 Jun 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, The Biological Laboratories, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12817086" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenosine Triphosphate/metabolism ; Bacillus subtilis/genetics/metabolism/*physiology ; Bacterial Proteins/genetics/*metabolism ; Bacteriolysis ; Gene Expression Profiling ; *Gene Expression Regulation, Bacterial ; Genes, Bacterial ; Mutation ; Oligonucleotide Array Sequence Analysis ; *Operon ; Sigma Factor/genetics/metabolism ; Signal Transduction ; Spores, Bacterial/*physiology ; Transcription Factors/genetics/metabolism ; Transcription, Genetic
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 81
    Publikationsdatum: 2003-10-18
    Beschreibung: Semiconductor quantum dots (QDs) are nanometer-sized fluorescent probes suitable for advanced biological imaging. We used QDs to track individual glycine receptors (GlyRs) and analyze their lateral dynamics in the neuronal membrane of living cells for periods ranging from milliseconds to minutes. We characterized multiple diffusion domains in relation to the synaptic, perisynaptic, or extrasynaptic GlyR localization. The entry of GlyRs into the synapse by diffusion was observed and further confirmed by electron microscopy imaging of QD-tagged receptors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dahan, Maxime -- Levi, Sabine -- Luccardini, Camilla -- Rostaing, Philippe -- Riveau, Beatrice -- Triller, Antoine -- New York, N.Y. -- Science. 2003 Oct 17;302(5644):442-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire Kastler Brossel, CNRS UMR 8552, Ecole Normale Superieure and Universite Pierre et Marie Curie, 24 rue Lhomond, 75005 Paris, France. maxime.dahan@lkb.ens.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14564008" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Membrane/metabolism/ultrastructure ; Cells, Cultured ; Dendrites/metabolism/ultrastructure ; Diffusion ; Fluorescence ; *Fluorescent Dyes ; Microscopy, Electron ; *Nanotechnology ; Neurites/metabolism/ultrastructure ; Neurons/*metabolism/ultrastructure ; Pyridinium Compounds ; Quaternary Ammonium Compounds ; Rats ; Rats, Sprague-Dawley ; Receptors, Glycine/*metabolism ; Semiconductors ; Spinal Cord/cytology ; Synapses/metabolism/ultrastructure
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 82
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-02-22
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sillje, Herman H W -- Nigg, Erich A -- New York, N.Y. -- Science. 2003 Feb 21;299(5610):1190-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Max Planck Institute of Biochemistry, Am Klopferspitz 18a, D-82152 Martinsried, Germany. sillje@biochem.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12595680" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Motifs ; Binding Sites ; CDC2 Protein Kinase/metabolism ; Catalytic Domain ; Cell Cycle Proteins ; Centrosome/metabolism ; Humans ; Mitosis ; Peptide Library ; Phosphoproteins/*metabolism ; Phosphorylation ; Phosphotransferases/metabolism ; Protein Conformation ; Protein Kinases/*chemistry/*metabolism ; *Protein Structure, Tertiary ; Protein-Serine-Threonine Kinases ; Proteomics ; Proto-Oncogene Proteins ; Signal Transduction ; cdc25 Phosphatases/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 83
    Publikationsdatum: 2003-12-03
    Beschreibung: The BAR (Bin/amphiphysin/Rvs) domain is the most conserved feature in amphiphysins from yeast to human and is also found in endophilins and nadrins. We solved the structure of the Drosophila amphiphysin BAR domain. It is a crescent-shaped dimer that binds preferentially to highly curved negatively charged membranes. With its N-terminal amphipathic helix and BAR domain (N-BAR), amphiphysin can drive membrane curvature in vitro and in vivo. The structure is similar to that of arfaptin2, which we find also binds and tubulates membranes. From this, we predict that BAR domains are in many protein families, including sorting nexins, centaurins, and oligophrenins. The universal and minimal BAR domain is a dimerization, membrane-binding, and curvature-sensing module.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peter, Brian J -- Kent, Helen M -- Mills, Ian G -- Vallis, Yvonne -- Butler, P Jonathan G -- Evans, Philip R -- McMahon, Harvey T -- New York, N.Y. -- Science. 2004 Jan 23;303(5657):495-9. Epub 2003 Nov 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council (MRC) Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14645856" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): ADP-Ribosylation Factors/chemistry/genetics/metabolism ; *Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; Animals ; COP-Coated Vesicles/metabolism ; Carrier Proteins/chemistry/genetics/metabolism ; Cell Membrane/chemistry/metabolism ; Clathrin/metabolism ; Clathrin-Coated Vesicles/metabolism ; Coated Vesicles/chemistry/*metabolism ; Crystallography, X-Ray ; *Cytoskeletal Proteins ; Dimerization ; Drosophila/chemistry ; Drosophila Proteins/*chemistry/*metabolism ; GTPase-Activating Proteins/chemistry/metabolism ; Liposomes/chemistry/*metabolism ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Nerve Tissue Proteins/*chemistry/genetics/*metabolism ; Nuclear Proteins/chemistry/metabolism ; Phosphoproteins/chemistry/metabolism ; Protein Binding ; Protein Structure, Secondary ; *Protein Structure, Tertiary
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 84
    Publikationsdatum: 2003-08-09
    Beschreibung: During early development in vertebrates, Sonic hedgehog (Shh) is produced by the notochord and the floor plate. A ventrodorsal gradient of Shh directs ventrodorsal patterning of the neural tube. However, Shh is also required for the survival of neuroepithelial cells. We show that Patched (Ptc) induces apoptotic cell death unless its ligand Shh is present to block the signal. Moreover, the blockade of Ptc-induced cell death partly rescues the chick spinal cord defect provoked by Shh deprivation. Thus, the proapoptotic activity of unbound Ptc and the positive effect of Shh-bound Ptc on cell differentiation probably cooperate to achieve the appropriate spinal cord development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thibert, Chantal -- Teillet, Marie-Aimee -- Lapointe, Francoise -- Mazelin, Laetitia -- Le Douarin, Nicole M -- Mehlen, Patrick -- New York, N.Y. -- Science. 2003 Aug 8;301(5634):843-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Apoptosis/Differentiation Laboratory, "La Ligue," Molecular and Cellular Genetic Center, CNRS Unite Mixte Recherche (UMR) 5534, University of Lyon, 69622 Villeurbanne, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12907805" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Apoptosis ; Caspase 3 ; Caspases/metabolism ; Cell Differentiation ; Cell Line ; Central Nervous System/cytology/*embryology/metabolism ; Chick Embryo ; Electroporation ; Epithelial Cells/cytology/metabolism ; Hedgehog Proteins ; Humans ; Intracellular Signaling Peptides and Proteins ; Membrane Proteins/chemistry/genetics/*metabolism ; Mice ; Mutation ; Protein Binding ; Protein Structure, Tertiary ; Rats ; Receptors, Cell Surface ; Signal Transduction ; Spinal Cord/cytology/embryology ; Trans-Activators/genetics/*metabolism ; Transfection
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 85
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-01-18
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fazleabas, Asgerally T -- Kim, J Julie -- New York, N.Y. -- Science. 2003 Jan 17;299(5605):355-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Obstetrics and Gynecology, University of Illinois, Chicago, IL 60612, USA. asgi@uic.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12532005" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Blastocyst/physiology ; Cell Adhesion ; Cell Adhesion Molecules/metabolism ; Cells, Cultured ; Coculture Techniques ; *Embryo Implantation ; Endometrium/cytology/*physiology ; Epithelial Cells/physiology ; Female ; Humans ; L-Selectin/*metabolism ; Ligands ; Oligosaccharides/metabolism ; Pregnancy ; Signal Transduction ; Trophoblasts/*metabolism ; Up-Regulation
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 86
    Publikationsdatum: 2003-06-28
    Beschreibung: Although mice lacking rod and cone photoreceptors are blind, they retain many eye-mediated responses to light, possibly through photosensitive retinal ganglion cells. These cells express melanopsin, a photopigment that confers this photosensitivity. Mice lacking melanopsin still retain nonvisual photoreception, suggesting that rods and cones could operate in this capacity. We observed that mice with both outer-retinal degeneration and a deficiency in melanopsin exhibited complete loss of photoentrainment of the circadian oscillator, pupillary light responses, photic suppression of arylalkylamine-N-acetyltransferase transcript, and acute suppression of locomotor activity by light. This indicates the importance of both nonvisual and classical visual photoreceptor systems for nonvisual photic responses in mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Panda, Satchidananda -- Provencio, Ignacio -- Tu, Daniel C -- Pires, Susana S -- Rollag, Mark D -- Castrucci, Ana Maria -- Pletcher, Mathew T -- Sato, Trey K -- Wiltshire, Tim -- Andahazy, Mary -- Kay, Steve A -- Van Gelder, Russell N -- Hogenesch, John B -- K08-EY00403/EY/NEI NIH HHS/ -- MH 62405/MH/NIMH NIH HHS/ -- MH51573/MH/NIMH NIH HHS/ -- R01-EY14988/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 2003 Jul 25;301(5632):525-7. Epub 2003 Jun 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Drive, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12829787" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Arylamine N-Acetyltransferase/genetics/metabolism ; Blindness/genetics/*physiopathology ; Circadian Rhythm ; *Light ; *Light Signal Transduction ; Mice ; Mice, Inbred C3H ; Motor Activity ; Photoreceptor Cells, Vertebrate/*physiology ; Reflex, Pupillary ; Retinal Degeneration/genetics/physiopathology ; Retinal Ganglion Cells/physiology ; Rod Opsins/deficiency/genetics/*physiology ; Signal Transduction ; Suprachiasmatic Nucleus/physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 87
    Publikationsdatum: 2003-10-04
    Beschreibung: The cytochrome b6f complex provides the electronic connection between the photosystem I and photosystem II reaction centers of oxygenic photosynthesis and generates a transmembrane electrochemical proton gradient for adenosine triphosphate synthesis. A 3.0 angstrom crystal structure of the dimeric b6f complex from the thermophilic cyanobacterium Mastigocladus laminosus reveals a large quinone exchange cavity, stabilized by lipid, in which plastoquinone, a quinone-analog inhibitor, and a novel heme are bound. The core of the b6f complex is similar to the analogous respiratory cytochrome bc1 complex, but the domain arrangement outside the core and the complement of prosthetic groups are strikingly different. The motion of the Rieske iron-sulfur protein extrinsic domain, essential for electron transfer, must also be different in the b6f complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kurisu, Genji -- Zhang, Huamin -- Smith, Janet L -- Cramer, William A -- GM-38323/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Nov 7;302(5647):1009-14. Epub 2003 Oct 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, 915 West State Street, Purdue University, West Lafayette, IN 47907-2054, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14526088" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cell Membrane/chemistry ; Crystallization ; Crystallography, X-Ray ; Cyanobacteria/*chemistry/metabolism ; Cytochrome b6f Complex/*chemistry/metabolism ; Cytochromes f/chemistry/metabolism ; Dimerization ; Electron Transport ; Electron Transport Complex III/chemistry/metabolism ; Heme/chemistry ; Hydrophobic and Hydrophilic Interactions ; Iron-Sulfur Proteins/chemistry/metabolism ; Lipid Bilayers ; Models, Molecular ; *Photosynthesis ; Plastoquinone/chemistry/metabolism ; Polyenes/chemistry/metabolism ; Protein Conformation ; Protein Structure, Quaternary ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Protein Subunits/chemistry ; Protons
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 88
    Publikationsdatum: 2003-03-15
    Beschreibung: Enzymes provide enormous rate enhancements, unmatched by any other type of catalyst. The stabilization of high-energy states along the reaction coordinate is the crux of the catalytic power of enzymes. We report the atomic-resolution structure of a high-energy reaction intermediate stabilized in the active site of an enzyme. Crystallization of phosphorylated beta-phosphoglucomutase in the presence of the Mg(II) cofactor and either of the substrates glucose 1-phosphate or glucose 6-phosphate produced crystals of the enzyme-Mg(II)-glucose 1,6-(bis)phosphate complex, which diffracted x-rays to 1.2 and 1.4 angstroms, respectively. The structure reveals a stabilized pentacovalent phosphorane formed in the phosphoryl transfer from the C(1)O of glucose 1,6-(bis)phosphate to the nucleophilic Asp8 carboxylate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lahiri, Sushmita D -- Zhang, Guofeng -- Dunaway-Mariano, Debra -- Allen, Karen N -- GM16099/GM/NIGMS NIH HHS/ -- RR07707/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2003 Mar 28;299(5615):2067-71. Epub 2003 Mar 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology and Biophysics, Boston University School of Medicine, Boston, MA 02118-2394, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12637673" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Binding Sites ; Catalysis ; Chemistry, Physical ; Crystallization ; Crystallography, X-Ray ; Glucose-6-Phosphate/metabolism ; Glucosephosphates/chemistry/metabolism ; Lactococcus lactis/enzymology ; Ligands ; Magnesium/chemistry ; Phosphates/chemistry ; Phosphoglucomutase/*chemistry/*metabolism ; Phosphoranes/chemistry ; Phosphorus/*chemistry ; Phosphorylation ; Physicochemical Phenomena ; Protein Conformation ; Protein Structure, Tertiary
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 89
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-10-11
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, Jean -- New York, N.Y. -- Science. 2003 Oct 10;302(5643):214-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14551414" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Actin Cytoskeleton/*physiology/ultrastructure ; Actin Depolymerizing Factors ; Actin-Related Protein 2 ; Actin-Related Protein 3 ; Actins/metabolism/*physiology ; Adenosine Triphosphate/metabolism ; Animals ; *Cell Movement ; Cell Size ; Cytoskeletal Proteins/metabolism ; Humans ; Listeria monocytogenes/*physiology/ultrastructure ; Microfilament Proteins/metabolism ; Movement ; Nerve Tissue Proteins/metabolism ; Signal Transduction ; Wiskott-Aldrich Syndrome Protein, Neuronal ; rho GTP-Binding Proteins/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 90
    Publikationsdatum: 2003-08-02
    Beschreibung: Because nitric oxide (NO) may be a ubiquitous regulator of cellular signaling, we have modified the yeast two-hybrid system to explore the possibility of NO-dependent protein-protein interactions. We screened for binding partners of procaspase-3, a protein implicated in apoptotic signaling pathways, and identified multiple NO-dependent interactions.Two such interactions, with acid sphingomyelinase and NO synthase, were shown to occur in mammalian cells dependent on endogenous NO. Nitrosylation may thus provide a broad-based mechanism for regulating interactions between proteins. If so, systematic proteomic analyses in which redox state and NO bioavailability are carefully controlled will reveal a large array of novel interactions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Matsumoto, Akio -- Comatas, Karrie E -- Liu, Limin -- Stamler, Jonathan S -- New York, N.Y. -- Science. 2003 Aug 1;301(5633):657-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12893946" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Apoptosis ; Caspase 3 ; Caspases/*metabolism ; Cell Line ; Enzyme Inhibitors/pharmacology ; Enzyme Precursors/*metabolism ; Escherichia coli/genetics/growth & development ; Gene Library ; Humans ; Hydrogen Peroxide/metabolism ; Lysosomes/enzymology ; Mitochondria/enzymology ; Nitric Oxide/*metabolism/pharmacology ; Nitric Oxide Donors/pharmacology ; Nitric Oxide Synthase/antagonists & inhibitors/*metabolism ; Nitric Oxide Synthase Type I ; Nitric Oxide Synthase Type II ; Nitric Oxide Synthase Type III ; Oxidation-Reduction ; Precipitin Tests ; *Protein Binding ; Signal Transduction ; Sphingomyelin Phosphodiesterase/*metabolism ; Transfection ; Transformation, Bacterial ; Triazenes/pharmacology ; Two-Hybrid System Techniques ; beta-Galactosidase/metabolism ; omega-N-Methylarginine/pharmacology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 91
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-03-01
    Beschreibung: A single antibody was shown to adopt different binding-site conformations and thereby bind unrelated antigens. Analysis by both x-ray crystallography and pre-steady-state kinetics revealed an equilibrium between different preexisting isomers, one of which possessed a promiscuous, low-affinity binding site for aromatic ligands, including the immunizing hapten. A subsequent induced-fit isomerization led to high-affinity complexes with a deep and narrow binding site. A protein antigen identified by repertoire selection made use of an unrelated antibody isomer with a wide, shallow binding site. Conformational diversity, whereby one sequence adopts multiple structures and multiple functions, can increase the effective size of the antibody repertoire but may also lead to autoimmunity and allergy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉James, Leo C -- Roversi, Pietro -- Tawfik, Dan S -- New York, N.Y. -- Science. 2003 Feb 28;299(5611):1362-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Protein Engineering, Medical Research Council Centre, Hills Road, Cambridge CB2 2HQ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12610298" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): 2,4-Dinitrophenol/immunology ; Amino Acid Sequence ; Antibodies, Monoclonal/chemistry/immunology ; Antibody Diversity ; *Antibody Specificity ; Antigen-Antibody Complex ; Antigen-Antibody Reactions ; Antigens/*immunology ; Binding Sites, Antibody ; Cross Reactions ; Crystallization ; Crystallography, X-Ray ; Dimerization ; Haptens/immunology ; Hydrogen Bonding ; Immunoglobulin E/*chemistry/*immunology ; Immunoglobulin Fragments/chemistry/immunology ; Isomerism ; Kinetics ; Ligands ; Models, Molecular ; Molecular Sequence Data ; Peptide Library ; Protein Conformation ; Recombinant Proteins/immunology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 92
    Publikationsdatum: 2003-06-28
    Beschreibung: The sorting of sodium channels to axons and the formation of clusters are of primary importance for neuronal electrogenesis. Here, we showed that the cytoplasmic loop connecting domains II and III of the Nav1 subunit contains a determinant conferring compartmentalization in the axonal initial segment of rat hippocampal neurons. Expression of a soluble Nav1.2II-III linker protein led to the disorganization of endogenous sodium channels. The motif was sufficient to redirect a somatodendritic potassium channel to the axonal initial segment, a process involving association with ankyrin G. Thus, this motif may play a fundamental role in controlling electrical excitability during development and plasticity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garrido, Juan Jose -- Giraud, Pierre -- Carlier, Edmond -- Fernandes, Fanny -- Moussif, Anissa -- Fache, Marie-Pierre -- Debanne, Dominique -- Dargent, Benedicte -- New York, N.Y. -- Science. 2003 Jun 27;300(5628):2091-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut National de la Sante et de la Recherche Medicale Unite 464, Institut Jean Roche, Universite de la Mediterranee, Faculte de Medecine Secteur-Nord, Boulevard P. Dramard, 13916 Marseille Cedex 20, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12829783" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Ankyrins/metabolism ; Axons/*metabolism ; Cell Membrane/metabolism ; Delayed Rectifier Potassium Channels ; Hippocampus/cytology ; Humans ; Ion Channel Gating ; Molecular Sequence Data ; Mutation ; NAV1.2 Voltage-Gated Sodium Channel ; Nerve Tissue Proteins/*chemistry/genetics/*metabolism ; Neurons/metabolism ; Patch-Clamp Techniques ; Potassium Channels/metabolism ; *Potassium Channels, Voltage-Gated ; Protein Structure, Tertiary ; Protein Transport ; Rats ; Recombinant Fusion Proteins/chemistry/metabolism ; Sodium Channels/*chemistry/genetics/*metabolism ; Transfection
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 93
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-10-04
    Beschreibung: Endocannabinoids have paradoxical effects on the mammalian nervous system: Sometimes they block neuronal excitability and other times they augment it. In their Perspective, Mechoulam and Lichtman discuss new work (Marsicano et al.) showing that activation of the cannabinoid receptor CB1 by the endocannabinoid anandamide protects against excitotoxic damage in a mouse model of kainic acid-induced epilepsy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mechoulam, R -- Lichtman, A H -- New York, N.Y. -- Science. 2003 Oct 3;302(5642):65-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicinal Chemistry and Natural Products, Medical Faculty, Hebrew University, Jerusalem 91120, Israel. mechou@cc.huji.ac.il〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14526067" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Anticonvulsants/metabolism ; Arachidonic Acids/*metabolism/pharmacology/therapeutic use ; Brain/drug effects/*metabolism ; Brain Diseases/drug therapy ; Cannabidiol/pharmacology/therapeutic use ; Cannabinoid Receptor Modulators ; Cannabinoids/*metabolism/pharmacology/therapeutic use ; Convulsants/metabolism ; Dronabinol/analogs & derivatives/pharmacology/therapeutic use ; Endocannabinoids ; Epilepsy/drug therapy/*metabolism ; Excitatory Amino Acid Agonists/pharmacology ; Excitatory Amino Acid Antagonists/pharmacology/therapeutic use ; Glutamic Acid/metabolism ; Glycerides/metabolism/pharmacology/therapeutic use ; Humans ; Kainic Acid/pharmacology ; Mice ; Neurons/drug effects/metabolism ; Neuroprotective Agents/*metabolism ; Polyunsaturated Alkamides ; Rats ; Receptors, Cannabinoid ; Receptors, Drug/agonists/antagonists & inhibitors/genetics/*metabolism ; Signal Transduction ; gamma-Aminobutyric Acid/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 94
    Publikationsdatum: 2003-08-23
    Beschreibung: Helicobacter pylori (Hp) vacuolating cytotoxin VacA induces cellular vacuolation in epithelial cells. We found that VacA could efficiently block proliferation of T cells by inducing a G1/S cell cycle arrest. It interfered with the T cell receptor/interleukin-2 (IL-2) signaling pathway at the level of the Ca2+-calmodulin-dependent phosphatase calcineurin. Nuclear translocation of nuclear factor of activated T cells (NFAT), a transcription factor acting as a global regulator of immune response genes, was abrogated, resulting in down-regulation of IL-2 transcription. VacA partially mimicked the activity of the immunosuppressive drug FK506 by possibly inducing a local immune suppression, explaining the extraordinary chronicity of Hp infections.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gebert, Bettina -- Fischer, Wolfgang -- Weiss, Evelyn -- Hoffmann, Reinhard -- Haas, Rainer -- New York, N.Y. -- Science. 2003 Aug 22;301(5636):1099-102.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max von Pettenkofer-Institut fur Hygiene und Medizinische Mikrobiologie, LMU Munchen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12934009" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Apoptosis ; Bacterial Proteins/pharmacology/*physiology ; Bacterial Toxins/pharmacology ; Calcineurin/metabolism ; Calcineurin Inhibitors ; Cyclins/metabolism ; Cytotoxins/pharmacology ; DNA-Binding Proteins/genetics/metabolism ; G1 Phase ; Gene Expression Regulation ; HeLa Cells ; Helicobacter pylori/genetics/*pathogenicity ; Humans ; Interleukin-2/genetics/metabolism ; Jurkat Cells ; *Lymphocyte Activation ; NFATC Transcription Factors ; *Nuclear Proteins ; Oligonucleotide Array Sequence Analysis ; S Phase ; Signal Transduction ; T-Lymphocytes/*immunology/*microbiology/physiology ; Tacrolimus/pharmacology ; Transcription Factors/genetics/metabolism ; Transcription, Genetic ; Transfection
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 95
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-07-19
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Couzin, Jennifer -- New York, N.Y. -- Science. 2003 Jul 18;301(5631):290.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12869732" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Blood Glucose/metabolism ; Diabetes Mellitus, Type 2/*drug therapy/metabolism ; Drug Evaluation, Preclinical ; Enzyme Activation ; Enzyme Activators/chemistry/*pharmacology ; Glucokinase/*metabolism ; Glucose/*metabolism ; Humans ; Hypoglycemic Agents/chemistry/pharmacology ; Insulin/*secretion ; Islets of Langerhans/*drug effects/secretion ; Liver/*drug effects/metabolism ; Mice ; Rats
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 96
    facet.materialart.
    Unbekannt
    American Association for the Advancement of Science (AAAS)
    Publikationsdatum: 2003-04-05
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Service, Robert F -- New York, N.Y. -- Science. 2003 Apr 4;300(5616):28.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12677028" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Access to Information ; Canada ; Crystallography, X-Ray ; Databases, Protein ; *Genomics/economics ; Humans ; Private Sector ; Proteins/*chemistry ; *Proteomics/economics ; Public Sector
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 97
    Publikationsdatum: 2003-09-06
    Beschreibung: Both dauer formation (a stage of developmental arrest) and adult life-span in Caenorhabditis elegans are negatively regulated by insulin-like signaling, but little is known about cellular pathways that mediate these processes. Autophagy, through the sequestration and delivery of cargo to the lysosomes, is the major route for degrading long-lived proteins and cytoplasmic organelles in eukaryotic cells. Using nematodes with a loss-of-function mutation in the insulin-like signaling pathway, we show that bec-1, the C. elegans ortholog of the yeast and mammalian autophagy gene APG6/VPS30/beclin1, is essential for normal dauer morphogenesis and life-span extension. Dauer formation is associated with increased autophagy and also requires C. elegans orthologs of the yeast autophagy genes APG1, APG7, APG8, and AUT10. Thus, autophagy is a cellular pathway essential for dauer development and life-span extension in C. elegans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Melendez, Alicia -- Talloczy, Zsolt -- Seaman, Matthew -- Eskelinen, Eeva-Liisa -- Hall, David H -- Levine, Beth -- CA84254/CA/NCI NIH HHS/ -- RR 12596/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2003 Sep 5;301(5638):1387-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Columbia University College of Physicians & Surgeons, 630 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/12958363" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Animals, Genetically Modified ; Apoptosis Regulatory Proteins ; Autophagy/*genetics ; Caenorhabditis elegans/*genetics/*growth & development/metabolism/ultrastructure ; Caenorhabditis elegans Proteins/chemistry/*genetics/metabolism/physiology ; Genes, Fungal ; *Genes, Helminth ; Humans ; Longevity ; Membrane Proteins ; Morphogenesis ; Mutation ; Phagosomes/ultrastructure ; Phenotype ; Proteins/chemistry/genetics/physiology ; RNA Interference ; Receptor, Insulin/genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; Saccharomyces cerevisiae/genetics/physiology ; Signal Transduction ; Vesicular Transport Proteins
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 98
    Publikationsdatum: 2003-08-30
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Blackburn, G Michael -- Williams, Nicholas H -- Gamblin, Steven J -- Smerdon, Stephen J -- New York, N.Y. -- Science. 2003 Aug 29;301(5637):1184; author reply 1184.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Krebs Institute, University of Sheffield, Sheffield, S3 7HF, UK. g.m.blackburn@shef.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12947182" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Binding Sites ; Catalysis ; Chemistry, Physical ; Crystallization ; Crystallography, X-Ray ; Fluorine Compounds/chemistry ; Kinetics ; Magnesium Compounds/chemistry ; Phosphates/chemistry ; Phosphoglucomutase/*chemistry/*metabolism ; Phosphoranes/chemistry ; Phosphorus/*chemistry ; Physicochemical Phenomena ; Protein Conformation ; Thermodynamics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 99
    Publikationsdatum: 2003-12-03
    Beschreibung: The sterol regulatory element-binding protein 2 (SREBP-2), a nuclear transcription factor that is essential for cholesterol metabolism, enters the nucleus through a direct interaction of its helix-loop-helix leucine zipper domain with importin-beta. We show the crystal structure of importin-beta complexed with the active form of SREBP-2. Importin-beta uses characteristic long helices like a pair of chopsticks to interact with an SREBP-2 dimer. Importin-beta changes its conformation to reveal a pseudo-twofold symmetry on its surface structure so that it can accommodate a symmetric dimer molecule. Importin-beta may use a similar strategy to recognize other dimeric cargoes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Soo Jae -- Sekimoto, Toshihiro -- Yamashita, Eiki -- Nagoshi, Emi -- Nakagawa, Atsushi -- Imamoto, Naoko -- Yoshimura, Masato -- Sakai, Hiroaki -- Chong, Khoon Tee -- Tsukihara, Tomitake -- Yoneda, Yoshihiro -- New York, N.Y. -- Science. 2003 Nov 28;302(5650):1571-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Protein Research, Graduate School of Frontier Biosciences, Osaka University, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14645851" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Active Transport, Cell Nucleus ; Amino Acid Motifs ; Amino Acid Sequence ; Animals ; Binding Sites ; Cell Nucleus/metabolism ; Crystallography, X-Ray ; DNA-Binding Proteins/*chemistry/*metabolism ; Dimerization ; Helix-Loop-Helix Motifs ; Humans ; Hydrophobic and Hydrophilic Interactions ; Mice ; Models, Molecular ; Molecular Sequence Data ; Nuclear Localization Signals ; Nuclear Pore/metabolism ; Protein Binding ; *Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Sterol Regulatory Element Binding Protein 2 ; Transcription Factors/*chemistry/*metabolism ; beta Karyopherins/*chemistry/*metabolism ; ran GTP-Binding Protein/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 100
    Publikationsdatum: 2003-09-13
    Beschreibung: The formation of an atherosclerotic lesion is mediated by lipid-laden macrophages (foam cells), which also establish chronic inflammation associated with lesion progression. The peroxisome proliferator-activated receptor (PPAR) gamma promotes lipid uptake and efflux in these atherogenic cells. In contrast, we found that the closely related receptor PPARdelta controls the inflammatory status of the macrophage. Deletion of PPARdelta from foam cells increased the availability of inflammatory suppressors, which in turn reduced atherosclerotic lesion area by more than 50%. We propose an unconventional ligand-dependent transcriptional pathway in which PPARdelta controls an inflammatory switch through its association and disassociation with transcriptional repressors. PPARdelta and its ligands may thus serve as therapeutic targets to attenuate inflammation and slow the progression of atherosclerosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Chih-Hao -- Chawla, Ajay -- Urbiztondo, Ned -- Liao, Debbie -- Boisvert, William A -- Evans, Ronald M -- Curtiss, Linda K -- HL69474/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2003 Oct 17;302(5644):453-7. Epub 2003 Sep 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12970571" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Arteriosclerosis/drug therapy/*etiology/metabolism ; Bone Marrow Transplantation ; Chemokine CCL2/genetics/metabolism ; Cholesterol/blood/metabolism ; DNA-Binding Proteins/metabolism ; Disease Progression ; Foam Cells/physiology ; Gene Expression Regulation ; Inflammation/*etiology ; Interleukin-1/genetics/metabolism ; Ligands ; Lipid Metabolism ; Lipids/blood ; Macrophages/*physiology ; Matrix Metalloproteinase 9/genetics/metabolism ; Mice ; Mice, Inbred C57BL ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-bcl-6 ; Receptors, Cytoplasmic and Nuclear/genetics/*metabolism ; Repressor Proteins/genetics/*metabolism ; Signal Transduction ; Transcription Factors/genetics/*metabolism ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...