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  • METEOROLOGY AND CLIMATOLOGY  (34)
  • FLUID MECHANICS AND HEAT TRANSFER  (8)
  • Cell Line  (7)
  • 1
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    Protein kinase B kinases that mediate phosphatidylinositol 3,4,5-trisphosphate-dependent activation of protein kinase B (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: Protein kinase B (PKB) is activated in response to phosphoinositide 3-kinases and their lipid products phosphatidylinositol 3,4, 5-trisphosphate [PtdIns(3,4,5)P3] and PtdIns(3,4)P2 in the signaling pathways used by a wide variety of growth factors, antigens, and inflammatory stimuli. PKB is a direct target of these lipids, but this regulation is complex. The lipids can bind to the pleckstrin homologous domain of PKB, causing its translocation to the membrane, and also enable upstream, Thr308-directed kinases to phosphorylate and activate PKB. Four isoforms of these PKB kinases were purified from sheep brain. They bound PtdIns(3,4,5)P3 and associated with lipid vesicles containing it. These kinases contain an NH2-terminal catalytic domain and a COOH-terminal pleckstrin homologous domain, and their heterologous expression augments receptor activation of PKB, which suggests they are the primary signal transducers that enable PtdIns(3,4,5)P3 or PtdIns- (3,4)P2 to activate PKB and hence to control signaling pathways regulating cell survival, glucose uptake, and glycogen metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stephens, L -- Anderson, K -- Stokoe, D -- Erdjument-Bromage, H -- Painter, G F -- Holmes, A B -- Gaffney, P R -- Reese, C B -- McCormick, F -- Tempst, P -- Coadwell, J -- Hawkins, P T -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):710-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Inositide Laboratory, The Babraham Institute, Babraham, Cambridge CB2 4AT, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445477" target="_blank"〉PubMed〈/a〉
    Keywords: 3-Phosphoinositide-Dependent Protein Kinases ; Alternative Splicing ; Amino Acid Sequence ; Animals ; Cell Line ; Cell Membrane/enzymology ; Cloning, Molecular ; DNA, Complementary ; Drosophila ; Drosophila Proteins ; Enzyme Activation ; Humans ; Liposomes/metabolism ; Molecular Sequence Data ; Open Reading Frames ; Phosphatidylinositol Phosphates/*metabolism ; Phosphorylation ; Platelet-Derived Growth Factor/pharmacology ; Protein-Serine-Threonine Kinases/chemistry/genetics/isolation & ; purification/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-akt ; Rats ; Recombinant Proteins/metabolism ; Sheep ; *Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    We must reverse the Bush legacy of stem-cell problems (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-07-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thomas Scott, Christopher -- Owen-Smith, Jason -- McCormick, Jennifer -- England -- Nature. 2009 Jul 2;460(7251):33. doi: 10.1038/460033b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19571864" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; *Federal Government ; *Guidelines as Topic ; Humans ; *National Institutes of Health (U.S.) ; *Stem Cells ; United States
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    Characterization of two classes of small molecule inhibitors of Arp2/3 complex (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-08-04
    Description: Polymerization of actin filaments directed by the actin-related protein (Arp)2/3 complex supports many types of cellular movements. However, questions remain regarding the relative contributions of Arp2/3 complex versus other mechanisms of actin filament nucleation to processes such as path finding by neuronal growth cones; this is because of the lack of simple methods to inhibit Arp2/3 complex reversibly in living cells. Here we describe two classes of small molecules that bind to different sites on the Arp2/3 complex and inhibit its ability to nucleate actin filaments. CK-0944636 binds between Arp2 and Arp3, where it appears to block movement of Arp2 and Arp3 into their active conformation. CK-0993548 inserts into the hydrophobic core of Arp3 and alters its conformation. Both classes of compounds inhibit formation of actin filament comet tails by Listeria and podosomes by monocytes. Two inhibitors with different mechanisms of action provide a powerful approach for studying the Arp2/3 complex in living cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2780427/" 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/PMC2780427/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nolen, B J -- Tomasevic, N -- Russell, A -- Pierce, D W -- Jia, Z -- McCormick, C D -- Hartman, J -- Sakowicz, R -- Pollard, T D -- F32 GM074374-02/GM/NIGMS NIH HHS/ -- GM-066311/GM/NIGMS NIH HHS/ -- GM074374-02/GM/NIGMS NIH HHS/ -- P01 GM066311/GM/NIGMS NIH HHS/ -- P01 GM066311-01A1/GM/NIGMS NIH HHS/ -- P30 EB009998/EB/NIBIB NIH HHS/ -- England -- Nature. 2009 Aug 20;460(7258):1031-4. doi: 10.1038/nature08231. Epub 2009 Aug 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19648907" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/drug effects/metabolism ; Actin-Related Protein 2/antagonists & inhibitors/chemistry/metabolism ; Actin-Related Protein 2-3 Complex/*antagonists & inhibitors/chemistry/metabolism ; Actin-Related Protein 3/antagonists & inhibitors/chemistry/metabolism ; Actins/chemistry/metabolism ; Animals ; Biopolymers/chemistry/metabolism ; Cattle ; Cell Line ; Crystallography, X-Ray ; Humans ; Hydrophobic and Hydrophilic Interactions ; Indoles/classification/metabolism/pharmacology ; Listeria/physiology ; Models, Molecular ; Monocytes/immunology ; Protein Conformation/drug effects ; Schizosaccharomyces ; Thiazoles/chemistry/classification/metabolism/pharmacology ; Thiophenes/classification/metabolism/pharmacology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
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    The kaposin B protein of KSHV activates the p38/MK2 pathway and stabilizes cytokine mRNAs (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-02-05
    Description: Cytokine production plays a critical role in diseases caused by Kaposi's sarcoma-associated herpesvirus (KSHV). Here we show that a latent KSHV gene product, kaposin B, increases the expression of cytokines by blocking the degradation of their messenger RNAs (mRNAs). Cytokine transcripts are normally unstable because they contain AU-rich elements (AREs) in their 3' noncoding regions that target them for degradation. Kaposin B reverses this instability by binding to and activating the kinase MK2, a target of the p38 mitogen-activated protein kinase signaling pathway and a known inhibitor of ARE-mRNA decay. These findings define an important mechanism linking latent KSHV infection to cytokine production, and also illustrate a distinctive mode by which viruses can selectively modulate mRNA turnover.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCormick, Craig -- Ganem, Don -- New York, N.Y. -- Science. 2005 Feb 4;307(5710):739-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Microbiology and Immunology, and Department of Medicine, University of California, San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15692053" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cell Line, Tumor ; Cell Nucleus/metabolism ; Cytokines/*genetics/*metabolism ; Cytosol/metabolism ; Enzyme Activation ; HeLa Cells ; Herpesvirus 8, Human/*physiology ; Humans ; Intracellular Signaling Peptides and Proteins ; *MAP Kinase Signaling System ; Models, Biological ; Phosphorylation ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; *RNA Stability ; RNA, Messenger/*metabolism ; Repetitive Sequences, Nucleic Acid ; Transcription, Genetic ; Transfection ; Two-Hybrid System Techniques ; Viral Proteins/*metabolism ; Virus Latency ; p38 Mitogen-Activated Protein Kinases/genetics/*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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  • 5
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    Inhibition by cAMP of Ras-dependent activation of Raf (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-11-12
    Description: Activation of the Raf and extracellular signal-regulated kinases (ERKs) (or mitogen-activated protein kinases) are key events in mitogenic signalling, but little is known about interactions with other signaling pathways. Agents that raise levels of intracellular cyclic adenosine 3',5'-monophosphate (cAMP) blocked DNA synthesis and signal transduction in Rat1 cells exposed to epidermal growth factor (EGF) or lysophosphatidic acid. In the case of EGF, receptor tyrosine kinase activity and association with the signaling molecules Grb2 and Shc were unaffected by cAMP. Likewise, EGF-dependent accumulation of the guanosine 5'-triphosphate-bound form of Ras was unaffected. In contrast, activation of Raf-1 and ERK kinases was inhibited. Thus, cAMP appears to inhibit signal transmission from Ras by preventing Ras-dependent activation of Raf-1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cook, S J -- McCormick, F -- UO1 CA51992-03/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1993 Nov 12;262(5136):1069-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Onyx Pharmaceuticals, Richmond, CA 94806.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7694367" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-3-isobutylxanthine/pharmacology ; Animals ; Bucladesine/pharmacology ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Cell Line ; Cholera Toxin/pharmacology ; Cyclic AMP/*pharmacology ; Cyclic AMP-Dependent Protein Kinases/metabolism ; Enzyme Activation ; Epidermal Growth Factor/pharmacology ; Interphase ; Lysophospholipids/pharmacology ; Mitogen-Activated Protein Kinase 1 ; Mitogen-Activated Protein Kinase 3 ; *Mitogen-Activated Protein Kinases ; Phosphorylation ; Protein-Tyrosine Kinases/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-raf ; Proto-Oncogene Proteins p21(ras)/*metabolism ; Rats ; Receptor, Epidermal Growth Factor/metabolism ; *Signal Transduction
    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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    Catalytic activity of the caspase-8-FLIP(L) complex inhibits RIPK3-dependent necrosis (2011)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2011-03-04
    Description: Caspase-8 has two opposing biological functions--it promotes cell death by triggering the extrinsic pathway of apoptosis, but also has a survival activity, as it is required for embryonic development, T-lymphocyte activation, and resistance to necrosis induced by tumour necrosis factor-alpha (TNF-alpha) and related family ligands. Here we show that development of caspase-8-deficient mice is completely rescued by ablation of receptor interacting protein kinase-3 (RIPK3). Adult animals lacking both caspase-8 and RIPK3 display a progressive lymphoaccumulative disease resembling that seen with defects in CD95 or CD95-ligand (also known as FAS and FASLG, respectively), and resist the lethal effects of CD95 ligation in vivo. We have found that caspase-8 prevents RIPK3-dependent necrosis without inducing apoptosis by functioning in a proteolytically active complex with FLICE-like inhibitory protein long (FLIP(L), also known as CFLAR), and this complex is required for the protective function.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3077893/" 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/PMC3077893/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oberst, Andrew -- Dillon, Christopher P -- Weinlich, Ricardo -- McCormick, Laura L -- Fitzgerald, Patrick -- Pop, Cristina -- Hakem, Razq -- Salvesen, Guy S -- Green, Douglas R -- P01 CA069381/CA/NCI NIH HHS/ -- P01 CA069381-14/CA/NCI NIH HHS/ -- England -- Nature. 2011 Mar 17;471(7338):363-7. doi: 10.1038/nature09852. Epub 2011 Mar 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dept. of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21368763" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD95/deficiency/metabolism ; Apoptosis ; *Biocatalysis ; CASP8 and FADD-Like Apoptosis Regulating Protein/*metabolism ; Caspase 8/genetics/*metabolism ; Caspase Inhibitors ; Cell Line ; Female ; Male ; Mice ; Multiprotein Complexes/chemistry/metabolism ; *Necrosis ; Phenotype ; Receptor-Interacting Protein Serine-Threonine Kinases/*antagonists & ; inhibitors/deficiency/genetics/*metabolism ; Serpins/pharmacology ; Tumor Necrosis Factor-alpha/antagonists & inhibitors/biosynthesis/pharmacology ; Viral Proteins/pharmacology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 7
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    Binding of 14-3-3 proteins to the protein kinase Raf and effects on its activation (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-09-16
    Description: To identify proteins that may participate in the activation of the protein kinase Raf, proteins that interact with Raf were selected in a two-hybrid screen. Two members of the 14-3-3 protein family were isolated that interacted with both the amino terminal regulatory regions of Raf and the kinase domain of Raf, but did not compete with the guanine nucleotide-binding protein Ras for binding to Raf. 14-3-3 proteins associated with Raf in mammalian cells and accompanied Raf to the membrane in the presence of activated Ras. In yeast cells expressing Raf and MEK, mammalian 14-3-3 beta or 14-3-3 zeta activated Raf to a similar extent as did expression of Ras. Therefore, 14-3-3 proteins may participate in or be required for the regulation of Raf function. These findings suggest a role for 14-3-3 proteins in Raf-mediated signal transduction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freed, E -- Symons, M -- Macdonald, S G -- McCormick, F -- Ruggieri, R -- New York, N.Y. -- Science. 1994 Sep 16;265(5179):1713-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Onyx Pharmaceuticals, Richmond, CA 94806-5206.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8085158" target="_blank"〉PubMed〈/a〉
    Keywords: 14-3-3 Proteins ; Amino Acid Sequence ; Animals ; Cell Line ; Cell Membrane/enzymology ; Cytosol/enzymology ; Enzyme Activation ; GTP-Binding Proteins/metabolism ; HeLa Cells ; Humans ; MAP Kinase Kinase 1 ; *Mitogen-Activated Protein Kinase Kinases ; Molecular Sequence Data ; Nerve Tissue Proteins/*metabolism ; Protein-Serine-Threonine Kinases/chemistry/genetics/*metabolism ; Protein-Tyrosine Kinases/genetics/metabolism ; Proto-Oncogene Proteins/chemistry/*metabolism ; Proto-Oncogene Proteins c-raf ; Recombinant Proteins/metabolism ; Saccharomyces cerevisiae/genetics/growth & development ; Signal Transduction ; *Tyrosine 3-Monooxygenase ; Zinc Fingers
    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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    The Experimental Cloud Lidar Pilot Study (ECLIPS) for cloud-radiation research (1994)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: The Experimental Cloud Lidar Pilot Study (ECLIPS) was initiated to obtain statistics on cloud-base height, extinction, optical depth, cloud brokenness, and surface fluxes. Two observational phases have taken place, in October-December 1989 and April-July 1991, with intensive 30-day periods being selected within the two time intervals. Data are being archived at NASA Langley Research Center and, once there, are readily available to the international scientific community. This article describes the scale of the study in terms of its international involvement and in the range of data being recorded. Lidar observations of cloud height and backscatter coefficient have been taken from a number of ground-based stations spread around the globe. Solar shortwave and infrared longwave fluxes and infrared beam radiance have been measured at the surface wherever possible. The observations have been tailored to occur around the overpass times of the NOAA weather satellites. This article describes in some detail the various retrieval methods used to obtain results on cloud-base height, extinction coefficient, and infrared emittance, paying particular attention to the uncertainties involved.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: American Meteorological Society, Bulletin (ISSN 0003-0007); 75; 9; p. 1635-1654
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  • 9
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    Annual variations of water vapor in the stratosphere and upper troposphere observed by the Stratospheric Aerosol and Gas Experiment II (1993)
    In:  Other Sources
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    Publication Date: 2011-08-24
    Description: Data collected by the Stratospheric Aerosol and Gas Experiment II are presented, showing annual variations of water vapor in the stratosphere and the upper troposphere. The altitude-time cross sections of water vapor were found to exhibit annually repeatable patterns in both hemispheres, with a yearly minimum in water vapor appearing in both hemispheres at about the same time, supporting the concept of a common source for stratospheric dry air. A linear regression analysis was applied to the three-year data set to elucidate global values and variations of water vapor ratio.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: Journal of Geophysical Research (ISSN 0148-0227); 98; D3; p. 4867-4874.
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  • 10
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    Global distributions of upper tropospheric relative humidity derived from SAGE II observations (1992)
    In:  Other Sources
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    Publication Date: 2011-08-24
    Description: The global distributions of upper tropospheric relative humidity derived from the archived SAGE II water vapor data set are presented. For both summer and winter months, vertical profiles of zonal mean relative humidity are derived for each of the six 20-deg latitude bands covering 60 deg N - 60 deg S. Some examples of global maps of upper tropospheric relative humidity are shown to illustrate the relationship between moist areas and convective activity.
    Keywords: METEOROLOGY AND CLIMATOLOGY
    Type: In: Conference on the Middle Atmosphere, 8th, Atlanta, GA, Jan. 5-10, 1992, Preprints (A93-49361 21-47); p. 60-65.
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