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  • 1
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    E-C coupling structural protein junctophilin-2 encodes a stress-adaptive transcription regulator (2018)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2018
    Description: 〈p〉Junctophilin-2 (JP2) is a structural protein required for normal excitation-contraction (E-C) coupling. After cardiac stress, JP2 is cleaved by the calcium ion–dependent protease calpain, which disrupts the E-C coupling ultrastructural machinery and drives heart failure progression. We found that stress-induced proteolysis of JP2 liberates an N-terminal fragment (JP2NT) that translocates to the nucleus, binds to genomic DNA, and controls expression of a spectrum of genes in cardiomyocytes. Transgenic overexpression of JP2NT in mice modifies the transcriptional profile, resulting in attenuated pathological remodeling in response to cardiac stress. Conversely, loss of nuclear JP2NT function accelerates stress-induced development of hypertrophy and heart failure in mutant mice. These data reveal a self-protective mechanism in failing cardiomyocytes that transduce mechanical information (E-C uncoupling) into salutary transcriptional reprogramming in the stressed heart.〈/p〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Zooming in on protons: Neutron structure of protein kinase A trapped in a product complex (2019)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2019
    Description: 〈p〉The question vis-à-vis the chemistry of phosphoryl group transfer catalyzed by protein kinases remains a major challenge. The neutron diffraction structure of the catalytic subunit of cAMP-dependent protein kinase (PKA-C) provides a more complete chemical portrait of key proton interactions at the active site. By using a high-affinity protein kinase substrate (PKS) peptide, we captured the reaction products, dephosphorylated nucleotide [adenosine diphosphate (ADP)] and phosphorylated PKS (pPKS), bound at the active site. In the complex, the phosphoryl group of the peptide is protonated, whereas the carboxyl group of the catalytic Asp〈sup〉166〈/sup〉 is not. Our structure, including conserved waters, shows how the peptide links the distal parts of the cleft together, creating a network that engages the entire molecule. By comparing slow-exchanging backbone amides to those determined by the NMR analysis of PKA-C with ADP and inhibitor peptide (PKI), we identified exchangeable amides that likely distinguish catalytic and inhibited states.〈/p〉
    Electronic ISSN: 2375-2548
    Topics: Natural Sciences in General
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Protecting fetal development (2019)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2019
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    European Space Agency. ESA and the European Union: a marriage made in the heavens? (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-04-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weiss, Giselle -- New York, N.Y. -- Science. 2003 Apr 25;300(5619):571-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12714720" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Livestock diseases and human health (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-10-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zinsstag, J -- Weiss, M G -- New York, N.Y. -- Science. 2001 Oct 19;294(5542):477.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11641468" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Diseases/prevention & control/transmission ; Animal Husbandry ; Animal Welfare ; Animals ; *Animals, Domestic ; Cattle ; Encephalopathy, Bovine Spongiform/prevention & control/transmission ; Foot-and-Mouth Disease/prevention & control/transmission ; *Health ; *Health Policy ; Humans
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Synchrotron radiation. Swiss source shows small is powerful (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-10-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weiss, G -- New York, N.Y. -- Science. 2001 Oct 19;294(5542):494.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11641472" target="_blank"〉PubMed〈/a〉
    Keywords: Costs and Cost Analysis ; Crystallography, X-Ray ; Gene Expression ; Genetic Techniques ; Nucleosomes ; Switzerland ; *Synchrotrons/economics ; X-Rays
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Uncoupling of nonreceptor tyrosine kinases from PLC-gamma1 in an SLP-76-deficient T cell (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-07-17
    Description: Activation of nonreceptor protein tyrosine kinases (PTKs) is essential for T cell receptor (TCR) responsiveness; however, the function of individual PTK substrates is often uncertain. A mutant T cell line was isolated that lacked expression of SLP-76 (SH2 domain-containing leukocyte protein of 76 kilodaltons), a hematopoietically expressed adaptor protein and PTK substrate. SLP-76 was not required for TCR-induced tyrosine phosphorylation of most proteins, but was required for optimal tyrosine phosphorylation and activation of phospholipase C-gamma1 (PLC-gamma1), as well as Ras pathway activation. TCR-inducible gene expression was dependent on SLP-76. Thus, coupling of TCR-regulated PTKs to downstream signaling pathways requires SLP-76.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yablonski, D -- Kuhne, M R -- Kadlecek, T -- Weiss, A -- CA72531/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1998 Jul 17;281(5375):413-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Howard Hughes Medical Institute, Box 0795, University of California, San Francisco, San Francisco, CA 94143-0795, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9665884" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Calcium/metabolism ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Carrier Proteins/metabolism ; Cell Line ; DNA-Binding Proteins/metabolism ; Enzyme Activation ; Gene Expression Regulation ; Humans ; Inositol Phosphates/metabolism ; Interleukin-2/genetics ; Isoenzymes/*metabolism ; Jurkat Cells ; *Membrane Proteins ; Mitogen-Activated Protein Kinase 1 ; NFATC Transcription Factors ; *Nuclear Proteins ; Phospholipase C gamma ; Phosphoproteins/metabolism/*physiology ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein-Tyrosine Kinases/*metabolism ; Receptors, Antigen, T-Cell/*metabolism ; Signal Transduction ; T-Lymphocytes/enzymology/*metabolism ; Transcription Factors/metabolism ; Transcriptional Activation ; Transfection ; Type C Phospholipases/*metabolism ; ras Proteins/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Xenografts and retroviruses (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-09-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weiss, R A -- New York, N.Y. -- Science. 1999 Aug 20;285(5431):1221-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wohl Virion Centre, Windeyer Institute of Medical Sciences, Univesity College, London W1) 6DB, UK. r.weiss@ucl.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10484730" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; *Gammaretrovirus/genetics/isolation & purification/physiology ; Graft Rejection ; Humans ; Retroviridae Infections/diagnosis/*transmission/virology ; *Risk Assessment ; Swine ; *Transplantation, Heterologous/adverse effects ; Tumor Virus Infections/diagnosis/*transmission/virology ; United States ; United States Food and Drug Administration ; Viremia/diagnosis ; Virus Replication ; *Zoonoses
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Fluorescence spectroscopy of single biomolecules (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-03-12
    Description: Recent advances in single-molecule detection and single-molecule spectroscopy at room temperature by laser-induced fluorescence offer new tools for the study of individual macromolecules under physiological conditions. These tools relay conformational states, conformational dynamics, and activity of single biological molecules to physical observables, unmasked by ensemble averaging. Distributions and time trajectories of these observables can therefore be measured during a reaction without the impossible need to synchronize all the molecules in the ensemble. The progress in applying these tools to biological studies with the use of fluorophores that are site-specifically attached to macromolecules is reviewed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weiss, S -- New York, N.Y. -- Science. 1999 Mar 12;283(5408):1676-83.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Materials Sciences and Physical Biosciences Divisions, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. sweiss@lbl.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10073925" target="_blank"〉PubMed〈/a〉
    Keywords: DNA/analysis/*chemistry/metabolism ; Fluorescent Dyes ; Nucleic Acid Conformation ; Protein Conformation ; Proteins/analysis/*chemistry/metabolism ; RNA/analysis/chemistry/metabolism ; *Spectrometry, Fluorescence
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    A low temperature transfer of ALH84001 from Mars to Earth (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-10-29
    Description: The ejection of material from Mars is thought to be caused by large impacts that would heat much of the ejecta to high temperatures. Images of the magnetic field of martian meteorite ALH84001 reveal a spatially heterogeneous pattern of magnetization associated with fractures and rock fragments. Heating the meteorite to 40 degrees C reduces the intensity of some magnetic features, indicating that the interior of the rock has not been above this temperature since before its ejection from the surface of Mars. Because this temperature cannot sterilize most bacteria or eukarya, these data support the hypothesis that meteorites could transfer life between planets in the solar system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weiss, B P -- Kirschvink, J L -- Baudenbacher, F J -- Vali, H -- Peters, N T -- Macdonald, F A -- Wikswo, J P -- New York, N.Y. -- Science. 2000 Oct 27;290(5492):791-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Geological and Planetary Sciences, 170-25, California Institute of Technology, Pasadena, CA 91125, USA. bweiss@gps.caltech.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11052940" target="_blank"〉PubMed〈/a〉
    Keywords: Crystallization ; *Exobiology ; Magnetics ; *Mars ; *Meteoroids ; Temperature
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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