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  • Articles  (134)
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  • Articles  (134)
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  • Latest Papers from Table of Contents or Articles in Press  (134)
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  • American Association for the Advancement of Science (AAAS)  (134)
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  • 1
    Publication Date: 1991-12-06
    Description: The protein kinase C (PKC) family of serine-threonine kinases has been implicated in the regulation of a variety of signaling cascades. One member of this family, eye-PKC, is expressed exclusively in the Drosophila visual system. The inaC (inactivation-no-afterpotential C) locus was shown to be the structural gene for eye-PKC. Analysis of the light response from inaC mutants showed that this kinase is required for the deactivation and rapid desensitization of the visual cascade. Light adaptation was also defective in inaC mutant flies. In flies carrying the retinal degeneration mutation rdgB, absence of eye-PKC suppressed photoreceptor cell degeneration. These results indicate that eye-PKC functions in the light-dependent regulation of the phototransduction cascade in Drosophila.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, D P -- Ranganathan, R -- Hardy, R W -- Marx, J -- Tsuchida, T -- Zuker, C S -- New York, N.Y. -- Science. 1991 Dec 6;254(5037):1478-84.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of California, San Diego, La Jolla.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1962207" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological/physiology ; Amino Acid Sequence ; Animals ; Calcium/physiology ; DNA Mutational Analysis ; Drosophila melanogaster/*genetics ; Eye/enzymology ; Genes ; Molecular Sequence Data ; Photoreceptor Cells/*physiology ; Protein Kinase C/chemistry/*physiology ; Restriction Mapping ; Retinal Degeneration/pathology/*physiopathology ; Signal Transduction ; *Vision, Ocular
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  • 2
    Publication Date: 1991-04-05
    Description: The natriuretic peptides are hormones that can stimulate natriuretic, diuretic, and vasorelaxant activity in vivo, presumably through the activation of two known cell surface receptor guanylyl cyclases (ANPR-A and ANPR-B). Although atrial natriuretic peptide (ANP) and, to a lesser extent, brain natriuretic peptide (BNP) are efficient activators of the ANPR-A guanylyl cyclase, neither hormone can significantly stimulate ANPR-B. A member of this hormone family, C-type natriuretic peptide (CNP), potently and selectively activated the human ANPR-B guanylyl cyclase. CNP does not increase guanosine 3',5'-monophosphate accumulation in cells expressing human ANPR-A. The affinity of CNP for ANPR-B is 50- or 500-fold higher than ANP or BNP, respectively. This ligand-receptor pair may be involved in the regulation of fluid homeostasis by the central nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koller, K J -- Lowe, D G -- Bennett, G L -- Minamino, N -- Kangawa, K -- Matsuo, H -- Goeddel, D V -- New York, N.Y. -- Science. 1991 Apr 5;252(5002):120-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Genentech, Inc., South San Francisco 94080.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1672777" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atrial Natriuretic Factor/*physiology ; Cells, Cultured ; Cercopithecus aethiops ; Cloning, Molecular ; Dose-Response Relationship, Drug ; Guanylate Cyclase/metabolism ; Humans ; Natriuretic Peptide, Brain ; Natriuretic Peptide, C-Type ; Nerve Tissue Proteins/*pharmacology ; Receptors, Atrial Natriuretic Factor ; Receptors, Cell Surface/*physiology ; Recombinant Proteins ; Signal Transduction
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1991-03-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoffman, M -- New York, N.Y. -- Science. 1991 Mar 8;251(4998):1181.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2006408" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Contractile Proteins/physiology ; Cytoskeleton/*physiology/ultrastructure ; Epidermal Growth Factor/*physiology ; Inositol 1,4,5-Trisphosphate/physiology ; Microfilament Proteins/*physiology ; Models, Biological ; Profilins ; Receptor, Epidermal Growth Factor/physiology ; Signal Transduction ; Type C Phospholipases/metabolism
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  • 4
    Publication Date: 1991-03-08
    Description: Epidermal growth factor and platelet-derived growth factor can stimulate the production of the second messenger inositol trisphosphate in responsive cells, but the biochemical pathway for these signaling events has been uncertain because the reactions have not been reconstituted with purified molecules in vitro. A reconstitution is described that requires not only the growth factor, its receptor with tyrosine kinase activity, and the soluble phospholipase C-gamma 1, but also the small soluble actin-binding protein profilin. Profilin binds to the substrate phosphatidylinositol 4,5-bisphosphate and inhibits its hydrolysis by unphosphorylated phospholipase C-gamma 1. Phosphorylation of phospholipase C-gamma 1 by the epidermal growth factor receptor tyrosine kinase overcomes the inhibitory effect of profilin and results in an effective activation of phospholipase C-gamma 1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldschmidt-Clermont, P J -- Kim, J W -- Machesky, L M -- Rhee, S G -- Pollard, T D -- GM-26338/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1991 Mar 8;251(4998):1231-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology and Anatomy, Johns Hopkins University School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1848725" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Contractile Proteins/metabolism ; Epidermal Growth Factor/*metabolism ; Inositol Phosphates/metabolism ; Isoenzymes/*metabolism ; Kinetics ; Microfilament Proteins/*metabolism ; Phosphatidylinositol 4,5-Diphosphate ; Phosphatidylinositols/metabolism ; Phosphorylation ; Profilins ; Protein-Tyrosine Kinases/*metabolism ; Receptor, Epidermal Growth Factor/*metabolism ; Signal Transduction ; Type C Phospholipases/*metabolism ; Tyrosine
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1991-09-13
    Description: Interleukin-8 (IL-8) is an inflammatory cytokine that activates neutrophil chemotaxis, degranulation, and the respiratory burst. Neutrophils express receptors for IL-8 that are coupled to guanine nucleotide-binding proteins (G proteins); binding of IL-8 to its receptor induces the mobilization of intracellular calcium stores. A cDNA clone from HL-60 neutrophils, designated p2, has now been isolated that encodes a human IL-8 receptor. When p2 is expressed in oocytes from Xenopus laevis, the oocytes bind 125I-labeled IL-8 specifically and respond to IL-8 by mobilizing calcium stores with an EC50 of 20 nM. This IL-8 receptor has 77% amino acid identity with a second human neutrophil receptor isotype that binds IL-8 with higher affinity. It also exhibits 69% amino acid identity with a protein reported to be an N-formyl peptide receptor from rabbit neutrophils, but less than 30% identity with all other known G protein-coupled receptors, including the human N-formyl peptide receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Murphy, P M -- Tiffany, H L -- New York, N.Y. -- Science. 1991 Sep 13;253(5025):1280-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Host Defenses, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1891716" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding, Competitive ; Cloning, Molecular/methods ; DNA/genetics ; Gene Library ; Humans ; Interleukin-8/*metabolism/pharmacology ; Kinetics ; Molecular Sequence Data ; Neutrophils/immunology ; Oocytes/drug effects/physiology ; Protein Biosynthesis ; Rabbits ; Receptors, Immunologic/drug effects/*genetics/physiology ; Receptors, Interleukin-8A ; Recombinant Proteins/metabolism ; Sequence Homology, Nucleic Acid ; Signal Transduction ; Transcription, Genetic ; Xenopus
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  • 6
    Publication Date: 1991-03-01
    Description: Calcitonin is a calcium regulating peptide hormone with binding sites in kidney and bone as well as in the central nervous system. The mechanisms of signal transduction by calcitonin receptors were studied in a pig kidney cell line where the hormone was found to regulate sodium pumps. Calcitonin receptors activated the cyclic adenosine monophosphate (cAMP) or the protein kinase C (PKC) pathways. The two transduction pathways required guanosine triphosphate (GTP)-binding proteins (G proteins) (the choleratoxin sensitive Gs and the pertussis toxin sensitive Gi, respectively) and led to opposite biological responses. Moreover, selective activation of one or the other pathway was cell cycle-dependent. Therefore, calcitonin may induce different biological responses in target cells depending on their positions in the cell cycle. Such a modulation of ligand-induced responses could be of importance in rapidly growing cell populations such as during embryogenesis, growth, and tumor formation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chakraborty, M -- Chatterjee, D -- Kellokumpu, S -- Rasmussen, H -- Baron, R -- DE-04724/DE/NIDCR NIH HHS/ -- DK-19813/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1991 Mar 1;251(4997):1078-82.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Yale University School of Medicine, Department of Cell Biology, New Haven, CT 06510.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1847755" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/physiology ; Animals ; Calcitonin/*physiology ; *Cell Cycle ; Cell Line ; GTP-Binding Proteins/*physiology ; Kidney ; Ouabain/metabolism ; Receptors, Calcitonin ; Receptors, Cell Surface/*physiology ; Signal Transduction ; Sodium-Potassium-Exchanging ATPase/*metabolism ; Swine
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  • 7
    Publication Date: 1991-11-15
    Description: Binding of ligand or antibody to certain cell-surface proteins that are anchored to the membrane by glycophosphatidylinositol (GPI) can cause activation of leukocytes. However, it is not known how these molecules, which lack intracellular domains, can transduce signals. The GPI-linked human molecules CD59, CD55, CD48, CD24, and CD14 as well as the mouse molecules Thy-1 and Ly-6 were found to associate with protein tyrosine kinases, key regulators of cell activation and signal transduction. A protein tyrosine kinase associated with the GPI-linked proteins CD59, CD55, and CD48 in human T cells, and with Thy-1 in mouse T cells was identified as p56lck, a protein tyrosine kinase related to Src. This interaction of GPI-linked molecules with protein tyrosine kinases suggests a potential mechanism of signal transduction in cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stefanova, I -- Horejsi, V -- Ansotegui, I J -- Knapp, W -- Stockinger, H -- New York, N.Y. -- Science. 1991 Nov 15;254(5034):1016-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Immunology-Vienna International Research Cooperation Center, University of Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1719635" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/*physiology ; Antigens, Differentiation/physiology ; Cell Adhesion Molecules/physiology ; Glycolipids/physiology ; Glycosylphosphatidylinositols ; Humans ; Membrane Glycoproteins/physiology ; Membrane Proteins/*physiology ; Mice ; Phosphatidylinositols/physiology ; Phosphorylation ; Phosphotyrosine ; Protein-Tyrosine Kinases/*physiology ; Receptor Aggregation ; Receptors, Cell Surface/*physiology ; Signal Transduction ; Tyrosine/analogs & derivatives/metabolism
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1991-10-04
    Description: The CD19-CR2 complex of B lymphocytes contains proteins that participate in two host-defense systems, the immune and complement systems. The ligand for the subunit of the immune system, CD19, is not known, but the complement receptor subunit, CR2 (CD21), binds activation fragments of the C3 component of the complement system and may mediate immunopotentiating effects of complement. A recombinant, soluble CR2 was prepared by fusing the C3-binding region of the receptor to immunoglobulin G1 (IgG1). The (CR2)2-IgG1 chimera competed with cellular CR2 for C3 binding and suppressed the antibody response to a T cell-dependent antigen when administered to mice at the time of immunization. This inhibitory effect of (CR2)2-IgG1 demonstrates the B cell-activating function of the CD19-CR2 complex and suggests a new method for humoral immunosuppression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hebell, T -- Ahearn, J M -- Fearon, D T -- AI-22833/AI/NIAID NIH HHS/ -- AI-28191/AI/NIAID NIH HHS/ -- GM-43803/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1991 Oct 4;254(5028):102-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1718035" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Antibody Formation ; Antigens, CD/*physiology ; Antigens, CD19 ; Antigens, Differentiation, B-Lymphocyte/chemistry/*physiology ; B-Lymphocytes/*physiology ; Base Sequence ; Binding, Competitive ; Cloning, Molecular ; Immunosuppression ; In Vitro Techniques ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C3H ; Molecular Sequence Data ; Receptors, Complement/chemistry/*physiology ; Receptors, Complement 3d ; Recombinant Fusion Proteins ; Signal Transduction ; Solubility
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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1991-08-23
    Description: FK506 and rapamycin are related immunosuppressive compounds that block helper T cell activation by interfering with signal transduction. In vitro, both drugs bind and inhibit the FK506-binding protein (FKBP) proline rotamase. Saccharomyces cerevisiae cells treated with rapamycin irreversibly arrested in the G1 phase of the cell cycle. An FKBP-rapamycin complex is concluded to be the toxic agent because (i) strains that lack FKBP proline rotamase, encoded by FPR1, were viable and fully resistant to rapamycin and (ii) FK506 antagonized rapamycin toxicity in vivo. Mutations that conferred rapamycin resistance altered conserved residues in FKBP that are critical for drug binding. Two genes other than FPR1, named TOR1 and TOR2, that participate in rapamycin toxicity were identified. Nonallelic noncomplementation between FPR1, TOR1, and TOR2 alleles suggests that the products of these genes may interact as subunits of a protein complex. Such a complex may mediate nuclear entry of signals required for progression through the cell cycle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heitman, J -- Movva, N R -- Hall, M N -- New York, N.Y. -- Science. 1991 Aug 23;253(5022):905-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Basel, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1715094" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Anti-Bacterial Agents/metabolism/pharmacology ; Base Sequence ; Binding Sites ; Carrier Proteins/antagonists & inhibitors/chemistry/genetics/metabolism ; Cell Cycle/*drug effects ; Cyclosporins/pharmacology ; Drug Resistance, Microbial/genetics ; G1 Phase/drug effects ; Humans ; Immunosuppressive Agents/pharmacology ; Molecular Sequence Data ; Molecular Structure ; Mutation ; Polyenes/metabolism/*pharmacology ; Saccharomyces cerevisiae/*cytology/drug effects ; Sequence Homology, Nucleic Acid ; Signal Transduction ; Sirolimus ; Tacrolimus ; Tacrolimus Binding Proteins
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  • 10
    Publication Date: 1991-01-18
    Description: The mechanism by which cell surface molecules regulate T cell production of lymphokines is poorly understood. Production of interleukin-2 (IL-2) can be regulated by signal transduction pathways distinct from those induced by the T cell antigen receptor. Stimulation of CD28, a molecule expressed on most human T cells, induced the formation of a protein complex that bound to a site on the IL-2 gene distinct from previously described binding sites and increased IL-2 enhancer activity fivefold. The CD28-responsive complex bound to the IL-2 gene between -164 and -154 base pairs from the transcription start site. The sequence of this element is similar to regions conserved in the 5' flanking regions of several other lymphokine genes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fraser, J D -- Irving, B A -- Crabtree, G R -- Weiss, A -- GM39553/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1991 Jan 18;251(4991):313-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1846244" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, CD28 ; Antigens, Differentiation, T-Lymphocyte/*physiology ; Base Sequence ; Cell Line ; DNA Mutational Analysis ; *Enhancer Elements, Genetic ; Gene Expression Regulation ; Humans ; In Vitro Techniques ; Interleukin-2/*genetics ; Molecular Sequence Data ; Oligonucleotides/chemistry ; *Regulatory Sequences, Nucleic Acid ; Signal Transduction ; T-Lymphocytes/*physiology ; Transcription, Genetic
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  • 11
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1991-12-23
    Description: Receptors that transmit signals across cell membranes are typically composed of multiple subunits. To test whether subunit interactions are required for transmembrane signaling by the bacterial aspartate receptor, dimers were constructed with (i) two full-length subunits, (ii) one full-length subunit and one subunit lacking the cytoplasmic domain, or (iii) one full-length subunit and one subunit lacking both the cytoplasmic and the transmembrane domains. Methylation of the cytoplasmic domain of all three receptor constructs was stimulated by the binding of aspartate. These findings demonstrate that transmembrane signaling does not require interactions between cytoplasmic or transmembrane domains of adjacent subunits and suggest that signaling occurs via conformational changes transduced through a single subunit.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Milligan, D L -- Koshland, D E Jr -- DK 09765/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1991 Dec 13;254(5038):1651-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cell Biology, University of California, Berkeley 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1661030" target="_blank"〉PubMed〈/a〉
    Keywords: Aspartic Acid/*physiology ; DNA Mutational Analysis ; Ligands ; Macromolecular Substances ; Methylation ; Protein Conformation ; *Receptors, Amino Acid ; Receptors, Cell Surface/*chemistry ; Recombinant Proteins ; Salmonella typhimurium ; Signal Transduction ; Structure-Activity Relationship
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  • 12
    Publication Date: 1991-05-24
    Description: The proto-oncogene wnt-1 (previously referred to as int-1) is thought to be important in embryonic pattern formation although its mechanisms of action are unknown. Premature and increased expression of the Wnt-1 protein, achieved by injection of synthetic wnt-1 RNA into fertilized Xenopus eggs, enhanced gap junctional communication between ventral cells of the developing embryo. This result is consistent with the hypothesis that Wnt proteins activate a receptor-mediated signal transduction pathway and that gap junctional communication can be a target of this pathway. The effects of two Wnt-1-related proteins on gap junctional communication were also investigated: overexpression of Xwnt-8 increased gap junctional coupling in a manner similar to Wnt-1, whereas Xwnt-5A did not. These findings are consistent with the existence of multiple receptors for Wnt proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olson, D J -- Christian, J L -- Moon, R T -- DE-07023/DE/NIDCR NIH HHS/ -- KO4-AR01837/AR/NIAMS NIH HHS/ -- R01-AR40089/AR/NIAMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1991 May 24;252(5009):1173-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Washington, School of Medicine, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2031187" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blastomeres/cytology/*physiology ; *Cell Communication ; Embryo, Nonmammalian/cytology/*physiology ; Female ; Intercellular Junctions/*physiology ; Male ; Protein-Tyrosine Kinases/genetics ; Proto-Oncogene Proteins/*genetics/physiology ; *Proto-Oncogenes ; Signal Transduction ; Sperm-Ovum Interactions ; Wnt Proteins ; Wnt1 Protein ; Xenopus ; Xenopus Proteins ; *Zebrafish Proteins
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  • 13
    Publication Date: 1991-06-07
    Description: The mechanism by which Ca2+ mediates gene induction in response to membrane depolarization was investigated. The adenosine 3',5'-monophosphate (cAMP) response element-binding protein (CREB) was shown to function as a Ca(2+)-regulated transcription factor and as a substrate for depolarization-activated Ca(2+)-calmodulin-dependent protein kinases (CaM kinases) I and II. CREB residue Ser133 was the major site of phosphorylation by the CaM kinases in vitro and of phosphorylation after membrane depolarization in vivo. Mutation of Ser133 impaired the ability of CREB to respond to Ca2+. These results suggest that CaM kinases may transduce electrical signals to the nucleus and that CREB functions to integrate Ca2+ and cAMP signals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sheng, M -- Thompson, M A -- Greenberg, M E -- R01 CA 43855/CA/NCI NIH HHS/ -- R01 NS 28829/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1991 Jun 7;252(5011):1427-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Molecular Genetics, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1646483" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/*pharmacology ; Calcium-Calmodulin-Dependent Protein Kinases ; Chromosome Mapping ; Cloning, Molecular ; Cyclic AMP/physiology ; Cyclic AMP Response Element-Binding Protein ; DNA-Binding Proteins/*physiology ; Electrophoresis, Polyacrylamide Gel ; Fungal Proteins/pharmacology ; Gene Expression Regulation/*drug effects ; Genes, Regulator/physiology ; Humans ; In Vitro Techniques ; Phosphorylation ; Protein Kinases/pharmacology ; Rats ; Recombinant Fusion Proteins/pharmacology ; *Saccharomyces cerevisiae Proteins ; Serine/chemistry ; Signal Transduction ; TATA Box ; Transcription Factors/*physiology ; Transcription, Genetic/drug effects ; Transcriptional Activation
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  • 14
    Publication Date: 1991-01-11
    Description: Antigen is thought to cross-link membrane-bound immunoglobulins (Igs) of B cells, causing proliferation and differentiation or the inhibition of growth. Protein tyrosine kinases are probably involved in signal transduction for cell proliferation and differentiation. The Src-like protein tyrosine kinase Lyn is expressed preferentially in B cells. The Lyn protein and its kinase activity could be coimmunoprecipitated with IgM from detergent lysates. Cross-linking of membrane-bound IgM induced a rapid increase in tyrosine phosphorylation of at least ten distinct proteins of B cells. Thus, Lyn is physically associated with membrane-bound IgM, and is suggested to participate in antigen-mediated signal transduction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamanashi, Y -- Kakiuchi, T -- Mizuguchi, J -- Yamamoto, T -- Toyoshima, K -- New York, N.Y. -- Science. 1991 Jan 11;251(4990):192-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncology, University of Tokyo, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1702903" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/immunology ; Cell Line ; Detergents ; Electrophoresis, Polyacrylamide Gel ; Immunoblotting ; Immunoglobulin M/metabolism ; Immunosorbent Techniques ; Mice ; Molecular Weight ; Phosphoproteins/metabolism ; Phosphorylation ; Phosphotyrosine ; Protein-Tyrosine Kinases/genetics/*metabolism ; Receptors, Antigen, B-Cell/*metabolism ; Signal Transduction ; Tyrosine/analogs & derivatives/metabolism ; *src-Family Kinases
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  • 15
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1991-11-22
    Description: Signaling pathways that mediate the normal functions of growth factors are commonly subverted in cancer. Oncogenes identified by a variety of approaches have been shown to function at critical steps in mitogenic signaling. Progression through the cell cycle requires the coordinated actions of members of two complementary classes of growth factors, and oncogenes appear to replace the actions of one set of these growth factors. Growth factors can also influence normal cell differentiation, and constitutive activation of growth-promoting pathways in cancer cells can modulate the cell phenotype as well. Paracrine actions of growth factors and cytokines may also influence the stepwise series of genetic events that lead to malignancy. New approaches for cancer therapy are being developed that intervene at various steps in growth factor signaling pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aaronson, S A -- New York, N.Y. -- Science. 1991 Nov 22;254(5035):1146-53.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular and Molecular Biology, National Cancer Institute, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1659742" target="_blank"〉PubMed〈/a〉
    Keywords: *Cell Division ; Growth Substances/*physiology ; Humans ; Mitogens ; Neoplasms/pathology/*physiopathology ; Oncogenes ; Protein-Tyrosine Kinases/physiology ; Proto-Oncogenes ; Receptors, Cell Surface/physiology ; Signal Transduction ; Substrate Specificity
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  • 16
    Publication Date: 1991-05-31
    Description: In the presence of antigen presenting cells, a murine T helper (Th) cell specific for murine hemoglobin (Hb) responded to its immunogenic peptide by both cytokine (interleukin-4) secretion and proliferation. An altered Hb peptide with a single amino acid substitution induced only cytokine secretion and did not induce proliferation. Interleukin-1 costimulated and restored the Th proliferative response to normal levels. The altered peptide also supported cognate T cell-B cell interactions indicative of T cell helper function. Thus, this result suggests that the T cell receptor has the capacity of differential signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Evavold, B D -- Allen, P M -- AI24157/AI/NIAID NIH HHS/ -- ESO7066/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1991 May 31;252(5010):1308-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1833816" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Division ; Clone Cells ; Hemoglobins/chemistry/*immunology ; Interleukin-4/*biosynthesis ; Lymphocyte Activation/*immunology ; Mice ; Molecular Sequence Data ; Peptide Fragments/chemistry/*immunology ; Receptors, Antigen, T-Cell/immunology/*metabolism ; Signal Transduction ; T-Lymphocytes, Helper-Inducer/cytology/*immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 17
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1991-12-13
    Description: In mammals, retinol is the precursor for retinoids, which affect various aspects of morphogenesis and development. However, B lymphocytes, although retinol-dependent, do not use retinoic acid as mediator. Retinol is metabolized by B lymphocytes and other cell lines to optically active 14-hydroxy-4,14-retro-retinol; it is this compound that mediates the growth control. Thus another second messenger molecule, in addition to retinoic acid and retinal, is derived from retinol.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Buck, J -- Derguini, F -- Levi, E -- Nakanishi, K -- Hammerling, U -- AI38351/AI/NIAID NIH HHS/ -- CA49933/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1991 Dec 13;254(5038):1654-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, Memorial Sloan-Kettering Cancer Center, New York, New York 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1749937" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/physiology ; Cell Line ; Growth Substances ; Humans ; Magnetic Resonance Spectroscopy ; Mice ; Retinoids/*chemistry ; Second Messenger Systems ; Signal Transduction ; Spectrophotometry, Ultraviolet ; Vitamin A/*analogs & derivatives/chemistry/physiology
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  • 18
    Publication Date: 1991-06-07
    Description: As well as being activated or rendered unresponsive, mature T lymphocytes can be deleted, depending on the signals received by the cell. Deletion by programmed cell death (apoptosis) is triggered if a T cell that has received a signal through its T cell receptor complex also receives a signal through the alpha 3 domain of its class I major histocompatibility complex (MHC) molecule. Such a signal can be delivered by a CD8 molecule, which recognizes the alpha 3 domain, or by an antibody to this domain. Precursors of both cytotoxic T lymphocytes (CTL's) and T helper cells are sensitive to this signal but become resistant at some point before completing differentiation into functioning CTL's or T helper cells. Because CTL's carry CD8, they can induce cell death in T cells that recognize them. This pathway may be important in both removal of autoreactive T cells and immunoregulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sambhara, S R -- Miller, R G -- New York, N.Y. -- Science. 1991 Jun 7;252(5011):1424-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ontario Cancer Institute, University of Toronto, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1828618" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD8 ; Antigens, Differentiation, T-Lymphocyte/physiology ; Cell Survival/physiology ; Cells, Cultured ; Histocompatibility Antigens Class I/*physiology ; In Vitro Techniques ; Interleukin-2/analysis ; Lymphocyte Culture Test, Mixed ; Mice ; Receptors, Antigen, T-Cell/*physiology ; Signal Transduction ; T-Lymphocytes/*physiology ; T-Lymphocytes, Cytotoxic/physiology
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  • 19
    Publication Date: 1991-05-03
    Description: The molecular cloning of the complementary DNA coding for a 90-kilodalton fragment of tensin, an actin-binding component of focal contacts and other submembraneous cytoskeletal structures, is reported. The derived amino acid sequence revealed the presence of a Src homology 2 (SH2) domain. This domain is shared by a number of signal transduction proteins including nonreceptor tyrosine kinases such as Abl, Fps, Src, and Src family members, the transforming protein Crk, phospholipase C-gamma 1, PI-3 (phosphatidylinositol) kinase, and guanosine triphosphatase-activating protein (GAP). Like the SH2 domain found in Src, Crk, and Abl, the SH2 domain of tensin bound specifically to a number of phosphotyrosine-containing proteins from v-src-transformed cells. Tensin was also found to be phosphorylated on tyrosine residues. These findings suggest that by possessing both actin-binding and phosphotyrosine-binding activities and being itself a target for tyrosine kinases, tensin may link signal transduction pathways with the cytoskeleton.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Davis, S -- Lu, M L -- Lo, S H -- Lin, S -- Butler, J A -- Druker, B J -- Roberts, T M -- An, Q -- Chen, L B -- GM 22289/GM/NIGMS NIH HHS/ -- GM 38318/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1991 May 3;252(5006):712-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cellular and Molecular Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1708917" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/*metabolism ; Amino Acid Sequence ; Animals ; Binding Sites ; Chick Embryo ; Cloning, Molecular ; Cytoskeletal Proteins/*chemistry/genetics/metabolism ; DNA/genetics ; Fluorescent Antibody Technique ; Immunoblotting ; *Microfilament Proteins ; Molecular Sequence Data ; Peptide Fragments/genetics ; Phosphotyrosine ; Protein-Tyrosine Kinases/genetics ; Sequence Homology, Nucleic Acid ; Signal Transduction ; Tyrosine/analogs & derivatives/metabolism
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  • 20
    Publication Date: 1991-12-13
    Description: The current view of how steroid hormone receptors affect gene transcription is that these receptors, on binding ligand, change to a state in which they can interact with chromatin and regulate transcription of target genes. Receptor activation is believed to be dependent only on this ligand-binding event. Selected steroid hormone receptors can be activated in a ligand-independent manner by a membrane receptor agonist, the neurotransmitter dopamine. In vitro, dopamine faithfully mimicked the effect of progesterone by causing a translocation of chicken progesterone receptor (cPR) from cytoplasm to nucleus. Dual activation by progesterone and dopamine was dissociable, and a serine residue in the cPR was identified that is not necessary for progesterone-dependent activation of cPR, but is essential for dopamine activation of this receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Power, R F -- Mani, S K -- Codina, J -- Conneely, O M -- O'Malley, B W -- New York, N.Y. -- Science. 1991 Dec 13;254(5038):1636-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Baylor College of Medicine, Houston, TX 77030.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1749936" target="_blank"〉PubMed〈/a〉
    Keywords: 2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine/pharmacology ; Adenylyl Cyclases/physiology ; Animals ; Cell Line ; Cercopithecus aethiops ; Dopamine/*pharmacology ; Epinephrine/pharmacology ; Ergolines/pharmacology ; Ethers, Cyclic/pharmacology ; Gene Expression Regulation/drug effects ; In Vitro Techniques ; Isoproterenol/pharmacology ; Ligands ; Norepinephrine/pharmacology ; Okadaic Acid ; Promoter Regions, Genetic ; Quinpirole ; Receptors, Dopamine/*physiology ; Receptors, Steroid/*physiology ; Regulatory Sequences, Nucleic Acid ; Signal Transduction ; Transcription Factors/physiology ; Transcription, Genetic/drug effects
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  • 21
    Publication Date: 1991-01-11
    Description: The amp operon, which is located on the Escherichia coli chromosome, modulates the induction of plasmid-borne beta-lactamase genes by extracellular beta-lactam antibiotics. This suggests that the gene products AmpD and AmpE may function in the transduction of external signals. beta-Lactam antibiotics are analogs of cell wall components that can be released during cell wall morphogenesis of enterobacteria. The amp operon was studied to determine its importance in signal transduction during cell wall morphogenesis. The peptidoglycan compositions of amp mutants were determined by high-performance liquid chromatography and fast atom bombardment mass spectrometry. When a chromosomal or plasmid-borne copy of ampD was present, the amount of pentapeptide-containing muropeptides in the cell wall increased upon addition of the cell wall constituent diaminopimelic acid to the growth medium. These results suggest that beta-lactamase induction and modulation of the composition of the cell wall share elements of a regulatory circuit that involves AmpD. Escherichia coli requires AmpD to respond to extracellular signaling amino acids, such as diaminopimelic acid, and this signal transduction system may regulate peptidoglycan composition in response to cell wall turnover products.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tuomanen, E -- Lindquist, S -- Sande, S -- Galleni, M -- Light, K -- Gage, D -- Normark, S -- AI23459/AI/NIAID NIH HHS/ -- AI27913/AI/NIAID NIH HHS/ -- DRR00480/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1991 Jan 11;251(4990):201-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Microbiology, Rockefeller University, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1987637" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Proteins/*genetics/metabolism ; Carboxypeptidases/metabolism ; Cell Wall/metabolism ; Diaminopimelic Acid/pharmacology ; Enzyme Induction ; Escherichia coli/*genetics/metabolism ; *Gene Expression Regulation/drug effects ; Genotype ; Membrane Proteins/*genetics/metabolism ; Molecular Sequence Data ; Mutation ; *N-Acetylmuramoyl-L-alanine Amidase ; Oligopeptides/metabolism ; *Operon ; Peptidoglycan/metabolism ; Plasmids ; Signal Transduction ; Spectrometry, Mass, Fast Atom Bombardment ; beta-Lactamases/*biosynthesis/genetics
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  • 22
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-04-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vinson, Valda J -- New York, N.Y. -- Science. 2009 Apr 10;324(5924):197. doi: 10.1126/science.324.5924.197.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19359575" target="_blank"〉PubMed〈/a〉
    Keywords: Evolution, Molecular ; Motion ; Protein Conformation ; Proteins/*chemistry/*physiology ; Signal Transduction ; Thermodynamics
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  • 23
    Publication Date: 2009-12-08
    Description: Fanconi anemia is a human cancer predisposition syndrome caused by mutations in 13 Fanc genes. The disorder is characterized by genomic instability and cellular hypersensitivity to chemicals that generate DNA interstrand cross-links (ICLs). A central event in the activation of the Fanconi anemia pathway is the mono-ubiquitylation of the FANCI-FANCD2 complex, but how this complex confers ICL resistance remains enigmatic. Using a cell-free system, we showed that FANCI-FANCD2 is required for replication-coupled ICL repair in S phase. Removal of FANCD2 from extracts inhibits both nucleolytic incisions near the ICL and translesion DNA synthesis past the lesion. Reversal of these defects requires ubiquitylated FANCI-FANCD2. Our results show that multiple steps of the essential S-phase ICL repair mechanism fail when the Fanconi anemia pathway is compromised.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2909596/" 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/PMC2909596/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knipscheer, Puck -- Raschle, Markus -- Smogorzewska, Agata -- Enoiu, Milica -- Ho, The Vinh -- Scharer, Orlando D -- Elledge, Stephen J -- Walter, Johannes C -- GM62267/GM/NIGMS NIH HHS/ -- R01 GM062267/GM/NIGMS NIH HHS/ -- R01 GM062267-09/GM/NIGMS NIH HHS/ -- R37 GM044664/GM/NIGMS NIH HHS/ -- R37 GM044664-23/GM/NIGMS NIH HHS/ -- T32CA09216/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1698-701. doi: 10.1126/science.1182372. Epub 2009 Nov 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965384" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell-Free System ; Chromatin/metabolism ; DNA/biosynthesis ; DNA Damage ; *DNA Repair ; *DNA Replication ; Fanconi Anemia/genetics/metabolism ; Fanconi Anemia Complementation Group D2 Protein/*metabolism ; Fanconi Anemia Complementation Group Proteins/*metabolism ; Molecular Sequence Data ; Recombinant Proteins/metabolism ; S Phase ; Signal Transduction ; Ubiquitinated Proteins/metabolism ; Ubiquitination ; Xenopus Proteins/*metabolism ; Xenopus laevis
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  • 24
    Publication Date: 2009-01-10
    Description: Cytokines such as interleukin-6 induce tyrosine and serine phosphorylation of Stat3 that results in activation of Stat3-responsive genes. We provide evidence that Stat3 is present in the mitochondria of cultured cells and primary tissues, including the liver and heart. In Stat3(-/-) cells, the activities of complexes I and II of the electron transport chain (ETC) were significantly decreased. We identified Stat3 mutants that selectively restored the protein's function as a transcription factor or its functions within the ETC. In mice that do not express Stat3 in the heart, there were also selective defects in the activities of complexes I and II of the ETC. These data indicate that Stat3 is required for optimal function of the ETC, which may allow it to orchestrate responses to cellular homeostasis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2758306/" 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/PMC2758306/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wegrzyn, Joanna -- Potla, Ramesh -- Chwae, Yong-Joon -- Sepuri, Naresh B V -- Zhang, Qifang -- Koeck, Thomas -- Derecka, Marta -- Szczepanek, Karol -- Szelag, Magdalena -- Gornicka, Agnieszka -- Moh, Akira -- Moghaddas, Shadi -- Chen, Qun -- Bobbili, Santha -- Cichy, Joanna -- Dulak, Jozef -- Baker, Darren P -- Wolfman, Alan -- Stuehr, Dennis -- Hassan, Medhat O -- Fu, Xin-Yuan -- Avadhani, Narayan -- Drake, Jennifer I -- Fawcett, Paul -- Lesnefsky, Edward J -- Larner, Andrew C -- CA098924/CA/NCI NIH HHS/ -- P01AG15885/AG/NIA NIH HHS/ -- R01 AI059710/AI/NIAID NIH HHS/ -- R01 AI059710-03/AI/NIAID NIH HHS/ -- R01 AI059710-04/AI/NIAID NIH HHS/ -- R01 CA098924/CA/NCI NIH HHS/ -- R01 CA098924-03/CA/NCI NIH HHS/ -- R01 CA098924-04/CA/NCI NIH HHS/ -- R01 CA098924-05/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Feb 6;323(5915):793-7. doi: 10.1126/science.1164551. Epub 2009 Jan 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology and Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131594" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Respiration ; Cells, Cultured ; Electron Transport Complex I/metabolism ; Electron Transport Complex II/metabolism ; Homeostasis ; Mice ; Mitochondria/*metabolism ; Mitochondria, Heart/metabolism ; Mitochondria, Liver/metabolism ; Mitochondrial Membranes/metabolism ; NADH, NADPH Oxidoreductases/metabolism ; Oxidative Phosphorylation ; Phosphorylation ; Precursor Cells, B-Lymphoid/metabolism ; STAT3 Transcription Factor/chemistry/*metabolism ; Serine/metabolism ; Signal Transduction
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  • 25
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2009 May 22;324(5930):1012-3. doi: 10.1126/science.324_1012.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19460982" target="_blank"〉PubMed〈/a〉
    Keywords: Abscisic Acid/*metabolism ; Arabidopsis/genetics/metabolism ; Arabidopsis Proteins/metabolism ; Genes, Plant ; Phosphoprotein Phosphatases/metabolism ; Plant Proteins/*metabolism ; Plants/genetics/*metabolism ; Protein Binding ; Signal Transduction ; Stress, Physiological
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  • 26
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-09-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meijer, Dies -- New York, N.Y. -- Science. 2009 Sep 11;325(5946):1353-4. doi: 10.1126/science.1180103.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology and Genetics, ErasmusMC, 3000 CA Rotterdam, Netherlands. d.meijer@erasmusmc.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19745142" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cyclic AMP/*metabolism ; Cyclic AMP-Dependent Protein Kinases/metabolism ; Homeodomain Proteins/genetics/metabolism ; Myelin Sheath/*physiology ; NF-kappa B/metabolism ; Octamer Transcription Factor-6/genetics/metabolism ; POU Domain Factors/genetics/metabolism ; Receptors, G-Protein-Coupled/genetics/*metabolism ; Schwann Cells/*metabolism ; Signal Transduction ; Transcription Factors/metabolism ; Zebrafish/genetics/*metabolism ; Zebrafish Proteins/genetics/*metabolism
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  • 27
    Publication Date: 2009-08-01
    Description: Commensal bacteria in the lower intestine of mammals are 10 times as numerous as the body's cells. We investigated the relative importance of different immune mechanisms in limiting the spread of the intestinal microbiota. Here, we reveal a flexible continuum between innate and adaptive immune function in containing commensal microbes. Mice deficient in critical innate immune functions such as Toll-like receptor signaling or oxidative burst production spontaneously produce high-titer serum antibodies against their commensal microbiota. These antibody responses are functionally essential to maintain host-commensal mutualism in vivo in the face of innate immune deficiency. Spontaneous hyper-activation of adaptive immunity against the intestinal microbiota, secondary to innate immune deficiency, may clarify the underlying mechanisms of inflammatory diseases where immune dysfunction is implicated.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3730530/" 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/PMC3730530/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Slack, Emma -- Hapfelmeier, Siegfried -- Stecher, Barbel -- Velykoredko, Yuliya -- Stoel, Maaike -- Lawson, Melissa A E -- Geuking, Markus B -- Beutler, Bruce -- Tedder, Thomas F -- Hardt, Wolf-Dietrich -- Bercik, Premysl -- Verdu, Elena F -- McCoy, Kathy D -- Macpherson, Andrew J -- AI56363/AI/NIAID NIH HHS/ -- CA105001/CA/NCI NIH HHS/ -- R01 CA105001/CA/NCI NIH HHS/ -- U19 AI056363/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2009 Jul 31;325(5940):617-20. doi: 10.1126/science.1172747.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON L8S 4L8, Canada. andrew.macpherson@insel.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19644121" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Bacterial/biosynthesis/blood/*immunology ; Bacteremia/immunology/microbiology ; Bacteria/growth & development/*immunology/isolation & purification ; Bacterial Infections/immunology/microbiology ; CD4-Positive T-Lymphocytes/immunology ; Colony Count, Microbial ; Enterococcus faecalis/growth & development/immunology/isolation & purification ; Escherichia coli K12/growth & development/immunology/isolation & purification ; Germ-Free Life ; Immunity ; *Immunity, Innate ; Intestinal Mucosa/immunology/*microbiology ; Intestines/immunology/*microbiology ; Lymphoid Tissue/microbiology ; Mice ; Mice, Inbred C57BL ; Permeability ; Respiratory Burst ; Signal Transduction ; Specific Pathogen-Free Organisms ; Spleen/microbiology ; Toll-Like Receptors/genetics/*metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 28
    Publication Date: 2009-05-30
    Description: Chronic viral infection is often associated with the dysfunction of virus-specific T cells. Our studies using Il21r-deficient (Il21r-/-) mice now suggest that interleukin-21 (IL-21) is critical for the long-term maintenance and functionality of CD8+ T cells and the control of chronic lymphocytic choriomeningitis virus infection in mice. Cell-autonomous IL-21 receptor (IL-21R)-dependent signaling by CD8+ T cells was required for sustained cell proliferation and cytokine production during chronic infection. Il21r-/- mice showed normal CD8+ T cell expansion, effector function, memory homeostasis, and recall responses during acute and after resolved infection with several other nonpersistent viruses. These data suggest that IL-21R signaling is required for the maintenance of polyfunctional T cells during chronic viral infections and have implications for understanding the immune response to other persisting antigens, such as tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Frohlich, Anja -- Kisielow, Jan -- Schmitz, Iwana -- Freigang, Stefan -- Shamshiev, Abdijapar T -- Weber, Jacqueline -- Marsland, Benjamin J -- Oxenius, Annette -- Kopf, Manfred -- New York, N.Y. -- Science. 2009 Jun 19;324(5934):1576-80. doi: 10.1126/science.1172815. Epub 2009 May 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biomedicine, Institute of Integrative Biology, ETH Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19478140" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD8-Positive T-Lymphocytes/*immunology ; Chronic Disease ; Humans ; Immunologic Memory ; Interferon-gamma/biosynthesis ; Lymphocytic Choriomeningitis/*immunology ; Mice ; Mice, Inbred C57BL ; Peptide Fragments/biosynthesis ; Receptors, Interleukin-21/*immunology ; Signal Transduction
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  • 29
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-07-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wiedemann, Nils -- Meisinger, Chris -- Pfanner, Nikolaus -- New York, N.Y. -- Science. 2009 Jul 24;325(5939):403-4. doi: 10.1126/science.1178016.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Biochemie und Molekularbiologie, Zentrum fur Biochemie und Molekulare Zellforschung and Centre for Biological Signalling Studies, Universitat Freiburg, 79104 Freiburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19628848" target="_blank"〉PubMed〈/a〉
    Keywords: Endoplasmic Reticulum/*physiology/ultrastructure ; Membrane Proteins/genetics/*physiology ; Mitochondria/*physiology/ultrastructure ; Mitochondrial Proteins/genetics/*physiology ; Signal Transduction ; Yeasts
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  • 30
    Publication Date: 2009-03-28
    Description: Precise wiring of the nervous system depends on coordinating the action of conserved families of proteins that direct axons to their appropriate targets. Slit-roundabout repulsion and netrin-deleted in colorectal cancer (DCC) (frazzled) attraction must be tightly regulated to control midline axon guidance in vertebrates and invertebrates, but the mechanism mediating this regulation is poorly defined. Here, we show that the Fra receptor has two genetically separable functions in regulating midline guidance in Drosophila. First, Fra mediates canonical chemoattraction in response to netrin, and, second, it functions independently of netrin to activate commissureless transcription, allowing attraction to be coupled to the down-regulation of repulsion in precrossing commissural axons.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4078765/" 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/PMC4078765/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, Long -- Garbe, David S -- Bashaw, Greg J -- NS046333/NS/NINDS NIH HHS/ -- NS054739/NS/NINDS NIH HHS/ -- R01 NS046333/NS/NINDS NIH HHS/ -- R01 NS046333-07/NS/NINDS NIH HHS/ -- R01 NS054739/NS/NINDS NIH HHS/ -- R01 NS054739-03/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 May 15;324(5929):944-7. doi: 10.1126/science.1171320. Epub 2009 Mar 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, University of Pennsylvania School of Medicine, 1113 BRB2/3, 421 Curie Boulevard, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19325078" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology ; Drosophila Proteins/*genetics/metabolism ; Drosophila melanogaster/embryology/*genetics/metabolism ; *Gene Expression Regulation, Developmental ; Membrane Proteins/*genetics/metabolism ; Mutation ; Nerve Growth Factors/metabolism ; Nerve Tissue Proteins/genetics/metabolism ; Nervous System/embryology/growth & development ; Neurons/*physiology ; RNA, Messenger/genetics/metabolism ; Receptors, Cell Surface/genetics/*metabolism ; Receptors, Immunologic/genetics ; Signal Transduction ; Transcription, Genetic ; *Transcriptional Activation
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  • 31
    Publication Date: 2009-01-20
    Description: Like many species, the model plant Arabidopsis thaliana exhibits multiple different life histories in natural environments. We grew mutants impaired in different signaling pathways in field experiments across the species' native European range in order to dissect the mechanisms underlying this variation. Unexpectedly, mutational loss at loci implicated in the cold requirement for flowering had little effect on life history except in late-summer cohorts. A genetically informed photothermal model of progression toward flowering explained most of the observed variation and predicted an abrupt transition from autumn flowering to spring flowering in late-summer germinants. Environmental signals control the timing of this transition, creating a critical window of acute sensitivity to genetic and climatic change that may be common for seasonally regulated life history traits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilczek, Amity M -- Roe, Judith L -- Knapp, Mary C -- Cooper, Martha D -- Lopez-Gallego, Cristina -- Martin, Laura J -- Muir, Christopher D -- Sim, Sheina -- Walker, Alexis -- Anderson, Jillian -- Egan, J Franklin -- Moyers, Brook T -- Petipas, Renee -- Giakountis, Antonis -- Charbit, Erika -- Coupland, George -- Welch, Stephen M -- Schmitt, Johanna -- New York, N.Y. -- Science. 2009 Feb 13;323(5916):930-4. doi: 10.1126/science.1165826. Epub 2009 Jan 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Ecology and Evolutionary Biology, Brown University, Providence, RI 02912, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19150810" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Physiological ; Arabidopsis/*genetics/*growth & development ; Environment ; Flowers/growth & development ; Mutation ; Photoperiod ; Seasons ; Signal Transduction
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  • 32
    Publication Date: 2009-03-07
    Description: Patten recognition receptors, which recognize pathogens or components of injured cells (danger), trigger activation of the innate immune system. Whether and how the host distinguishes between danger- versus pathogen-associated molecular patterns remains unresolved. We report that CD24-deficient mice exhibit increased susceptibility to danger- but not pathogen-associated molecular patterns. CD24 associates with high mobility group box 1, heat shock protein 70, and heat shock protein 90; negatively regulates their stimulatory activity; and inhibits nuclear factor kappaB (NF-kappaB) activation. This occurs at least in part through CD24 association with Siglec-10 in humans or Siglec-G in mice. Our results reveal that the CD24-Siglec G pathway protects the host against a lethal response to pathological cell death and discriminates danger- versus pathogen-associated molecular patterns.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2765686/" 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/PMC2765686/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Guo-Yun -- Tang, Jie -- Zheng, Pan -- Liu, Yang -- AI064350/AI/NIAID NIH HHS/ -- CA112001/CA/NCI NIH HHS/ -- CA58033/CA/NCI NIH HHS/ -- R01 AI064350/AI/NIAID NIH HHS/ -- R01 AI064350-04/AI/NIAID NIH HHS/ -- R01 CA058033/CA/NCI NIH HHS/ -- R01 CA058033-16A2/CA/NCI NIH HHS/ -- R01 CA112001/CA/NCI NIH HHS/ -- R01 CA112001-02/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Mar 27;323(5922):1722-5. doi: 10.1126/science.1168988. Epub 2009 Mar 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Immunotherapy, Department of Surgery, University of Michigan School of Medicine, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19264983" target="_blank"〉PubMed〈/a〉
    Keywords: Acetaminophen/toxicity ; Animals ; Antigens, CD24/genetics/*metabolism ; Cytokines/metabolism ; Dendritic Cells/immunology ; HMGB1 Protein/chemistry/immunology/*metabolism ; HSP70 Heat-Shock Proteins/metabolism ; HSP90 Heat-Shock Proteins/metabolism ; Humans ; *Immunity, Innate ; Immunoprecipitation ; Inflammation/*immunology ; Lectins/*metabolism ; Lipopolysaccharides/toxicity ; Liver/immunology/pathology ; Mice ; Mutant Proteins/chemistry/metabolism ; Necrosis/chemically induced/immunology ; Protein Structure, Tertiary ; Protein Tyrosine Phosphatase, Non-Receptor Type 6/metabolism ; Receptors, Antigen, B-Cell/*metabolism ; Receptors, Cell Surface/metabolism ; Receptors, Pattern Recognition/immunology/metabolism ; Signal Transduction ; Transcription Factor RelA/metabolism
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  • 33
    Publication Date: 2009-09-04
    Description: The Hedgehog (Hh) signaling pathway is inappropriately activated in certain human cancers, including medulloblastoma, an aggressive brain tumor. GDC-0449, a drug that inhibits Hh signaling by targeting the serpentine receptor Smoothened (SMO), has produced promising anti-tumor responses in early clinical studies of cancers driven by mutations in this pathway. To evaluate the mechanism of resistance in a medulloblastoma patient who had relapsed after an initial response to GDC-0449, we determined the mutational status of Hh signaling genes in the tumor after disease progression. We identified an amino acid substitution at a conserved aspartic acid residue of SMO that had no effect on Hh signaling but disrupted the ability of GDC-0449 to bind SMO and suppress this pathway. A mutation altering the same amino acid also arose in a GDC-0449-resistant mouse model of medulloblastoma. These findings show that acquired mutations in a serpentine receptor with features of a G protein-coupled receptor can serve as a mechanism of drug resistance in human cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yauch, Robert L -- Dijkgraaf, Gerrit J P -- Alicke, Bruno -- Januario, Thomas -- Ahn, Christina P -- Holcomb, Thomas -- Pujara, Kanan -- Stinson, Jeremy -- Callahan, Christopher A -- Tang, Tracy -- Bazan, J Fernando -- Kan, Zhengyan -- Seshagiri, Somasekar -- Hann, Christine L -- Gould, Stephen E -- Low, Jennifer A -- Rudin, Charles M -- de Sauvage, Frederic J -- New York, N.Y. -- Science. 2009 Oct 23;326(5952):572-4. doi: 10.1126/science.1179386. Epub 2009 Sep 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genentech, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19726788" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Anilides/metabolism/pharmacology/*therapeutic use ; Animals ; Antineoplastic Agents/metabolism/pharmacology/*therapeutic use ; Brain Neoplasms/*drug therapy/*genetics/pathology ; Cell Line, Tumor ; Cinnamates/pharmacology ; Drug Resistance, Neoplasm ; Hedgehog Proteins/antagonists & inhibitors/genetics/*metabolism ; Humans ; Medulloblastoma/*drug therapy/*genetics/pathology ; Mice ; Molecular Sequence Data ; Mutant Proteins/antagonists & inhibitors/chemistry/metabolism ; Mutation, Missense ; Neoplasm Metastasis ; Protein Conformation ; Pyridines/metabolism/pharmacology/*therapeutic use ; Receptors, Cell Surface/genetics/metabolism ; Receptors, G-Protein-Coupled/antagonists & ; inhibitors/chemistry/*genetics/metabolism ; Signal Transduction ; Veratrum Alkaloids/pharmacology
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  • 34
    Publication Date: 2009-12-08
    Description: To understand basic principles of bacterial metabolism organization and regulation, but also the impact of genome size, we systematically studied one of the smallest bacteria, Mycoplasma pneumoniae. A manually curated metabolic network of 189 reactions catalyzed by 129 enzymes allowed the design of a defined, minimal medium with 19 essential nutrients. More than 1300 growth curves were recorded in the presence of various nutrient concentrations. Measurements of biomass indicators, metabolites, and 13C-glucose experiments provided information on directionality, fluxes, and energetics; integration with transcription profiling enabled the global analysis of metabolic regulation. Compared with more complex bacteria, the M. pneumoniae metabolic network has a more linear topology and contains a higher fraction of multifunctional enzymes; general features such as metabolite concentrations, cellular energetics, adaptability, and global gene expression responses are similar, however.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yus, Eva -- Maier, Tobias -- Michalodimitrakis, Konstantinos -- van Noort, Vera -- Yamada, Takuji -- Chen, Wei-Hua -- Wodke, Judith A H -- Guell, Marc -- Martinez, Sira -- Bourgeois, Ronan -- Kuhner, Sebastian -- Raineri, Emanuele -- Letunic, Ivica -- Kalinina, Olga V -- Rode, Michaela -- Herrmann, Richard -- Gutierrez-Gallego, Ricardo -- Russell, Robert B -- Gavin, Anne-Claude -- Bork, Peer -- Serrano, Luis -- New York, N.Y. -- Science. 2009 Nov 27;326(5957):1263-8. doi: 10.1126/science.1177263.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Genomic Regulation (CRG) and Universitat Pompeu Fabra, Avenida Dr. Aiguader 88, 08003 Barcelona, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965476" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Bacterial Proteins/*metabolism ; Culture Media ; Energy Metabolism ; Enzymes/genetics/metabolism ; Gene Expression Profiling ; *Gene Expression Regulation, Bacterial ; *Genome, Bacterial ; Glycolysis ; *Metabolic Networks and Pathways ; Mycoplasma pneumoniae/*genetics/growth & development/*metabolism ; RNA, Bacterial/genetics/metabolism ; Signal Transduction ; Systems Biology ; Transcription, Genetic ; rRNA Operon
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  • 35
    Publication Date: 2009-11-07
    Description: Virtually all of the 560 human proteases are stored as inactive proenyzmes and are strictly regulated. We report the identification and characterization of the first small molecules that directly activate proenzymes, the apoptotic procaspases-3 and -6. It is surprising that these compounds induce autoproteolytic activation by stabilizing a conformation that is both more active and more susceptible to intermolecular proteolysis. These procaspase activators bypass the normal upstream proapoptotic signaling cascades and induce rapid apoptosis in a variety of cell lines. Systematic biochemical and biophysical analyses identified a cluster of mutations in procaspase-3 that resist small-molecule activation both in vitro and in cells. Compounds that induce gain of function are rare, and the activators reported here will enable direct control of the executioner caspases in apoptosis and in cellular differentiation. More generally, these studies presage the discovery of other proenzyme activators to explore fundamental processes of proenzyme activation and their fate-determining roles in biology.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2886848/" 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/PMC2886848/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolan, Dennis W -- Zorn, Julie A -- Gray, Daniel C -- Wells, James A -- F32 CA119641/CA/NCI NIH HHS/ -- F32 CA119641-03/CA/NCI NIH HHS/ -- R01 CA136779/CA/NCI NIH HHS/ -- R21 N5057022/PHS HHS/ -- New York, N.Y. -- Science. 2009 Nov 6;326(5954):853-8. doi: 10.1126/science.1177585.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmaceutical Chemistry, University of California, San Francisco, Byers Hall, 1700 4th Street, San Francisco, CA 94158, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19892984" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Benzopyrans/chemistry/*metabolism/pharmacology ; Biocatalysis ; Caspase 3/chemistry/genetics/*metabolism ; Caspase 6/chemistry/genetics/*metabolism ; Caspase Inhibitors ; Catalytic Domain ; Cell Line, Transformed ; Cell Line, Tumor ; Cells, Cultured ; Enzyme Activation ; Enzyme Activators/chemistry/*metabolism/pharmacology ; Enzyme Inhibitors/metabolism/pharmacology ; Enzyme Precursors/antagonists & inhibitors/chemistry/genetics/*metabolism ; Granzymes/metabolism ; Humans ; Imidazoles/chemistry/*metabolism/pharmacology ; Kinetics ; Mice ; Molecular Structure ; Mutagenesis ; Pyridines/chemistry/*metabolism/pharmacology ; Signal Transduction ; Small Molecule Libraries/chemistry/metabolism
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  • 36
    Publication Date: 2009-07-18
    Description: Effective B cell-mediated immunity and antibody responses often require help from CD4+ T cells. It is thought that a distinct CD4+ effector T cell subset, called T follicular helper cells (T(FH)), provides this help; however, the molecular requirements for T(FH) differentiation are unknown. We found that expression of the transcription factor Bcl6 in CD4+ T cells is both necessary and sufficient for in vivo T(FH) differentiation and T cell help to B cells in mice. In contrast, the transcription factor Blimp-1, an antagonist of Bcl6, inhibits T(FH) differentiation and help, thereby preventing B cell germinal center and antibody responses. These findings demonstrate that T(FH) cells are required for proper B cell responses in vivo and that Bcl6 and Blimp-1 play central but opposing roles in T(FH) differentiation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2766560/" 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/PMC2766560/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Johnston, Robert J -- Poholek, Amanda C -- DiToro, Daniel -- Yusuf, Isharat -- Eto, Danelle -- Barnett, Burton -- Dent, Alexander L -- Craft, Joe -- Crotty, Shane -- AR40072/AR/NIAMS NIH HHS/ -- AR44076/AR/NIAMS NIH HHS/ -- P30 AR053495/AR/NIAMS NIH HHS/ -- R01 063107/PHS HHS/ -- R01 072543/PHS HHS/ -- R01 AI063107/AI/NIAID NIH HHS/ -- R01 AI063107-01A1/AI/NIAID NIH HHS/ -- R01 AI072543/AI/NIAID NIH HHS/ -- R01 AI072543-01A1/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2009 Aug 21;325(5943):1006-10. doi: 10.1126/science.1175870. Epub 2009 Jul 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology (LIAI), 9420 Athena Circle, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19608860" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibody Formation ; Arenaviridae Infections/immunology ; B-Lymphocytes/immunology ; CD4-Positive T-Lymphocytes/cytology/immunology ; Cell Differentiation ; Cell Lineage ; Cytokines/metabolism ; DNA-Binding Proteins/genetics/*metabolism ; Gene Expression Regulation ; Germinal Center/cytology/immunology ; Lymphocyte Activation ; Lymphocytic choriomeningitis virus/immunology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; RNA, Messenger/genetics/metabolism ; Signal Transduction ; T-Lymphocyte Subsets/cytology/*immunology ; T-Lymphocytes, Helper-Inducer/cytology/*immunology ; Transcription Factors/genetics/*metabolism
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  • 37
    Publication Date: 2009-01-10
    Description: Expression and signaling of CD30, a tumor necrosis factor receptor family member, is up-regulated in numerous lymphoid-derived neoplasias, most notably anaplastic large-cell lymphoma (ALCL) and Hodgkin's lymphoma. To gain insight into the mechanism of CD30 signaling, we used an affinity purification strategy that led to the identification of the aryl hydrocarbon receptor nuclear translocator (ARNT) as a CD30-interacting protein that modulated the activity of the RelB subunit of the transcription factor nuclear factor kappaB (NF-kappaB). ALCL cells that were deficient in ARNT exhibited defects in RelB recruitment to NF-kappaB-responsive promoters, whereas RelA recruitment to the same sites was potentiated, resulting in the augmented expression of these NF-kappaB-responsive genes. These findings indicate that ARNT functions in concert with RelB in a CD30-induced negative feedback mechanism.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2682336/" 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/PMC2682336/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wright, Casey W -- Duckett, Colin S -- R01 GM067827/GM/NIGMS NIH HHS/ -- R01 GM067827-04/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 9;323(5911):251-5. doi: 10.1126/science.1162818.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19131627" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigens, CD30/*metabolism ; Aryl Hydrocarbon Receptor Nuclear Translocator/chemistry/genetics/*metabolism ; Cell Line ; Cell Line, Tumor ; DNA/metabolism ; Feedback, Physiological ; Gene Expression Regulation ; Humans ; Lymphoma, Large-Cell, Anaplastic/genetics/metabolism ; Molecular Sequence Data ; NF-kappa B/genetics/metabolism ; Promoter Regions, Genetic ; Protein Structure, Tertiary ; Receptors, Tumor Necrosis Factor, Type II/metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Transcription Factor RelB/genetics/*metabolism ; *Transcription, Genetic ; Transcriptional Activation
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  • 38
    Publication Date: 2009-04-04
    Description: Plants possess inducible systemic defense responses when locally infected by pathogens. Bacterial infection results in the increased accumulation of the mobile metabolite azelaic acid, a nine-carbon dicarboxylic acid, in the vascular sap of Arabidopsis that confers local and systemic resistance against the pathogen Pseudomonas syringae. Azelaic acid primes plants to accumulate salicylic acid (SA), a known defense signal, upon infection. Mutation of the AZELAIC ACID INDUCED 1 (AZI1) gene, which is induced by azelaic acid, results in the specific loss of systemic immunity triggered by pathogen or azelaic acid and of the priming of SA induction in plants. Furthermore, the predicted secreted protein AZI1 is also important for generating vascular sap that confers disease resistance. Thus, azelaic acid and AZI1 are components of plant systemic immunity involved in priming defenses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jung, Ho Won -- Tschaplinski, Timothy J -- Wang, Lin -- Glazebrook, Jane -- Greenberg, Jean T -- New York, N.Y. -- Science. 2009 Apr 3;324(5923):89-91. doi: 10.1126/science.1170025.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Cell Biology, University of Chicago, 1103 East 57th Street EBC410, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19342588" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/genetics/*immunology/metabolism/*microbiology ; Arabidopsis Proteins/*genetics/physiology ; Dicarboxylic Acids/*metabolism/pharmacology ; Gene Expression Regulation, Plant ; *Genes, Plant ; Immunity, Innate ; Mutation ; Oligonucleotide Array Sequence Analysis ; Plant Diseases/*immunology ; Plant Leaves/immunology/metabolism ; Pseudomonas syringae/growth & development/*immunology/pathogenicity ; Salicylic Acid/metabolism ; Signal Transduction
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  • 39
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-08
    Description: The extracellular matrix (ECM) and ECM proteins are important in phenomena as diverse as developmental patterning, stem cell niches, cancer, and genetic diseases. The ECM has many effects beyond providing structural support. ECM proteins typically include multiple, independently folded domains whose sequences and arrangement are highly conserved. Some of these domains bind adhesion receptors such as integrins that mediate cell-matrix adhesion and also transduce signals into cells. However, ECM proteins also bind soluble growth factors and regulate their distribution, activation, and presentation to cells. As organized, solid-phase ligands, ECM proteins can integrate complex, multivalent signals to cells in a spatially patterned and regulated fashion. These properties need to be incorporated into considerations of the functions of the ECM.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3536535/" 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/PMC3536535/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hynes, Richard O -- P01 HL066105/HL/NHLBI NIH HHS/ -- R01 CA017007/CA/NCI NIH HHS/ -- U54 CA126515/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Nov 27;326(5957):1216-9. doi: 10.1126/science.1176009.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. rohynes@mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965464" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; *Cell Physiological Processes ; Extracellular Matrix/*physiology ; Extracellular Matrix Proteins/chemistry/*metabolism ; Humans ; Intercellular Signaling Peptides and Proteins/metabolism ; Models, Biological ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Structure, Tertiary ; Signal Transduction ; Transforming Growth Factor beta/metabolism
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  • 40
    Publication Date: 2009-07-11
    Description: Sensory information detected by the peripheral nervous system is represented as a topographic map in the brain. It has long been thought that the topography of the map is determined by graded positional cues that are expressed by the target. Here, we analyzed the pre-target axon sorting for olfactory map formation in mice. In olfactory sensory neurons, an axon guidance receptor, Neuropilin-1, and its repulsive ligand, Semaphorin-3A, are expressed in a complementary manner. We found that expression levels of Neuropilin-1 determined both pre-target sorting and projection sites of axons. Olfactory sensory neuron-specific knockout of Semaphorin-3A perturbed axon sorting and altered the olfactory map topography. Thus, pre-target axon sorting plays an important role in establishing the topographic order based on the relative levels of guidance molecules expressed by axons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Imai, Takeshi -- Yamazaki, Takahiro -- Kobayakawa, Reiko -- Kobayakawa, Ko -- Abe, Takaya -- Suzuki, Misao -- Sakano, Hitoshi -- New York, N.Y. -- Science. 2009 Jul 31;325(5940):585-90. doi: 10.1126/science.1173596. Epub 2009 Jul 9.〈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/19589963" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology ; Brain Mapping ; Cell Communication ; Cues ; Cyclic AMP/metabolism ; Ligands ; Mice ; Mice, Knockout ; Mice, Transgenic ; Neuroglia/physiology ; Neuropilin-1/*metabolism ; Olfactory Bulb/cytology/*physiology ; Olfactory Mucosa/cytology/physiology ; Olfactory Pathways/cytology/*physiology ; Olfactory Receptor Neurons/cytology/*physiology ; Receptors, Odorant/metabolism ; Semaphorin-3A/metabolism ; Signal Transduction
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  • 41
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-10-17
    Description: An emerging set of methods enables an experimental dialogue with biological systems composed of many interacting cell types--in particular, with neural circuits in the brain. These methods are sometimes called "optogenetic" because they use light-responsive proteins ("opto-") encoded in DNA ("-genetic"). Optogenetic devices can be introduced into tissues or whole organisms by genetic manipulation and be expressed in anatomically or functionally defined groups of cells. Two kinds of devices perform complementary functions: Light-driven actuators control electrochemical signals, while light-emitting sensors report them. Actuators pose questions by delivering targeted perturbations; sensors (and other measurements) signal answers. These catechisms are beginning to yield previously unattainable insight into the organization of neural circuits, the regulation of their collective dynamics, and the causal relationships between cellular activity patterns and behavior.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miesenbock, Gero -- G0700888/Medical Research Council/United Kingdom -- G0701225/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 Oct 16;326(5951):395-9. doi: 10.1126/science.1174520.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, Anatomy and Genetics, University of Oxford, Parks Road, Oxford, OX1 3PT, UK. gero.miesenboeck@dpag.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19833960" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biotechnology/instrumentation/*methods ; Brain/*physiology ; Calcium/metabolism ; Gene Expression Profiling ; *Genetic Engineering ; *Light ; Membrane Potentials ; Neural Pathways/physiology ; Neurons/*physiology ; Neurosciences/*methods ; Photons ; Proteins/*metabolism ; Signal Transduction ; Synapses/physiology
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  • 42
    Publication Date: 2009-12-08
    Description: Holometabolous insects undergo complete metamorphosis to become sexually mature adults. Metamorphosis is initiated by brain-derived prothoracicotropic hormone (PTTH), which stimulates the production of the molting hormone ecdysone via an incompletely defined signaling pathway. Here we demonstrate that Torso, a receptor tyrosine kinase that regulates embryonic terminal cell fate in Drosophila, is the PTTH receptor. Trunk, the embryonic Torso ligand, is related to PTTH, and ectopic expression of PTTH in the embryo partially rescues trunk mutants. In larvae, torso is expressed specifically in the prothoracic gland (PG), and its loss phenocopies the removal of PTTH. The activation of Torso by PTTH stimulates extracellular signal-regulated kinase (ERK) phosphorylation, and the loss of ERK in the PG phenocopies the loss of PTTH and Torso. We conclude that PTTH initiates metamorphosis by activation of the Torso/ERK pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rewitz, Kim F -- Yamanaka, Naoki -- Gilbert, Lawrence I -- O'Connor, Michael B -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Dec 4;326(5958):1403-5. doi: 10.1126/science.1176450.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN 55455, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965758" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Bombyx/*genetics/metabolism ; Cell Line ; Drosophila Proteins/chemistry/genetics/*metabolism ; Drosophila melanogaster/embryology/genetics/*growth & development/metabolism ; Embryo, Nonmammalian/metabolism ; Extracellular Signal-Regulated MAP Kinases/metabolism ; Insect Hormones/chemistry/*metabolism ; Larva/growth & development ; Ligands ; *Metamorphosis, Biological ; Molecular Sequence Data ; Neurons/metabolism ; Phosphorylation ; Pupa/growth & development ; RNA Interference ; Receptor Protein-Tyrosine Kinases/genetics/*metabolism ; Signal Transduction
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  • 43
    Publication Date: 2009-01-31
    Description: The cytoskeleton, integrin-mediated adhesion, and substrate stiffness control a common set of cell functions required for development and homeostasis that are often deranged in cancer. The connection between these mechanical elements and chemical signaling processes is not known. Here, we show that alpha(5)beta(1) integrin switches between relaxed and tensioned states in response to myosin II-generated cytoskeletal force. Force combines with extracellular matrix stiffness to generate tension that triggers the integrin switch. This switch directly controls the alpha(5)beta(1)-fibronectin bond strength through engaging the synergy site in fibronectin and is required to generate signals through phosphorylation of focal adhesion kinase. In the context of tissues, this integrin switch connects cytoskeleton and extracellular matrix mechanics to adhesion-dependent motility and signaling pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Friedland, Julie C -- Lee, Mark H -- Boettiger, David -- GM57388/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jan 30;323(5914):642-4. doi: 10.1126/science.1168441.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Medicine and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19179533" target="_blank"〉PubMed〈/a〉
    Keywords: Actins ; Biophysical Phenomena ; Cell Adhesion ; Cell Line, Tumor ; Cytoskeleton/*physiology ; Fibronectins/chemistry/*metabolism ; Focal Adhesion Protein-Tyrosine Kinases/metabolism ; Humans ; Integrin alpha5beta1/*chemistry/*metabolism ; Ligands ; Models, Molecular ; Myosin Type II/antagonists & inhibitors/metabolism ; Phosphorylation ; Protein Binding ; Protein Conformation ; Signal Transduction
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  • 44
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-02-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bar-Yam, Yaneer -- Harmon, Dion -- de Bivort, Benjamin -- New York, N.Y. -- Science. 2009 Feb 20;323(5917):1016-7. doi: 10.1126/science.1163225.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉New England Complex Systems Institute, 24 Mt. Auburn Street, Cambridge, MA 02138, USA. yaneer@necsi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19229023" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Gene Expression Profiling ; *Gene Expression Regulation ; *Gene Regulatory Networks ; Models, Genetic ; Phenotype ; Signal Transduction ; Systems Biology ; *Transcription, Genetic
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  • 45
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-16
    Description: Integrins are transmembrane cell-adhesion molecules that carry signals from the outside to the inside of the cell and vice versa. Like other cell surface receptors, integrins signal in response to ligand binding; however, events within the cell can also regulate the affinity of integrins for ligands. This feature is important in physiological situations such as those in blood, in which cells are always in close proximity to their ligands, yet cell-ligand interactions occur only after integrin activation in response to specific external cues. This review focuses on the mechanisms whereby two key proteins, talin and the kindlins, regulate integrin activation by binding the tails of integrin-beta subunits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moser, Markus -- Legate, Kyle R -- Zent, Roy -- Fassler, Reinhard -- DK 69921/DK/NIDDK NIH HHS/ -- DK075594/DK/NIDDK NIH HHS/ -- DK65138/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2009 May 15;324(5929):895-9. doi: 10.1126/science.1163865.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute of Biochemistry, 82152 Martinsried, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19443776" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Adhesion ; Humans ; Integrins/chemistry/*metabolism ; Ligands ; Membrane Proteins/chemistry/*metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Tertiary ; Signal Transduction ; Talin/chemistry/*metabolism
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  • 46
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-09
    Description: To intercept invading microbes that threaten growth and reproduction, plants evolved a sophisticated innate immune system. Recognition of specialized pathogens is mediated by resistance proteins that function as molecular switches. Pathogen perception by these multidomain proteins seems to trigger a series of conformational changes dependent on nucleotide exchange. The activated resistance protein switches on host defenses, often culminating in the death of infected cells. Given their control over life and death, activity of these proteins requires tight regulation that involves intramolecular interactions between the various domains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takken, F L W -- Tameling, W I L -- New York, N.Y. -- Science. 2009 May 8;324(5928):744-6. doi: 10.1126/science.1171666.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Plant Pathology, Swammerdam Institute for Life Sciences (SILS), University of Amsterdam, Post Office Box 94215, 1090 GE Amsterdam, the Netherlands. F.L.W.Takken@uva.nl〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19423813" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Diphosphate/metabolism ; Adenosine Triphosphatases/chemistry/genetics/*metabolism ; Adenosine Triphosphate/metabolism ; Host-Pathogen Interactions ; Immunity, Innate ; Plant Diseases/*immunology ; Plant Proteins/chemistry/genetics/*metabolism ; Plants/*immunology/metabolism/*microbiology ; Protein Conformation ; Protein Multimerization ; Protein Structure, Tertiary ; Signal Transduction
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  • 47
    Publication Date: 2009-09-26
    Description: Amyloid-beta (Abeta) accumulation in the brain extracellular space is a hallmark of Alzheimer's disease. The factors regulating this process are only partly understood. Abeta aggregation is a concentration-dependent process that is likely responsive to changes in brain interstitial fluid (ISF) levels of Abeta. Using in vivo microdialysis in mice, we found that the amount of ISF Abeta correlated with wakefulness. The amount of ISF Abeta also significantly increased during acute sleep deprivation and during orexin infusion, but decreased with infusion of a dual orexin receptor antagonist. Chronic sleep restriction significantly increased, and a dual orexin receptor antagonist decreased, Abeta plaque formation in amyloid precursor protein transgenic mice. Thus, the sleep-wake cycle and orexin may play a role in the pathogenesis of Alzheimer's disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2789838/" 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/PMC2789838/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kang, Jae-Eun -- Lim, Miranda M -- Bateman, Randall J -- Lee, James J -- Smyth, Liam P -- Cirrito, John R -- Fujiki, Nobuhiro -- Nishino, Seiji -- Holtzman, David M -- AG025824/AG/NIA NIH HHS/ -- AG029524/AG/NIA NIH HHS/ -- AG030946/AG/NIA NIH HHS/ -- K01 AG029524/AG/NIA NIH HHS/ -- K01 AG029524-03/AG/NIA NIH HHS/ -- K23 AG030946/AG/NIA NIH HHS/ -- K23 AG030946-03/AG/NIA NIH HHS/ -- MH072525/MH/NIMH NIH HHS/ -- NS065667/NS/NINDS NIH HHS/ -- P30 DK056341/DK/NIDDK NIH HHS/ -- P30 DK056341-09/DK/NIDDK NIH HHS/ -- P30 NS057105/NS/NINDS NIH HHS/ -- P30 NS057105-04/NS/NINDS NIH HHS/ -- P50 AG005681/AG/NIA NIH HHS/ -- R01 AG025824/AG/NIA NIH HHS/ -- R01 AG025824-03/AG/NIA NIH HHS/ -- R01 MH072525/MH/NIMH NIH HHS/ -- R01 MH072525-04/MH/NIMH NIH HHS/ -- R01 NS065667/NS/NINDS NIH HHS/ -- R01 NS065667-02/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):1005-7. doi: 10.1126/science.1180962. Epub 2009 Sep 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Washington University, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19779148" target="_blank"〉PubMed〈/a〉
    Keywords: Acetamides/pharmacology ; Alzheimer Disease/metabolism/*physiopathology ; Amyloid beta-Peptides/cerebrospinal fluid/*metabolism ; Animals ; Antigens, Surface/metabolism ; Circadian Rhythm ; Disease Models, Animal ; Extracellular Fluid/*metabolism ; Female ; Hippocampus/*metabolism ; Humans ; Intracellular Signaling Peptides and Proteins/administration & dosage/*metabolism ; Isoquinolines/pharmacology ; Light ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Neuropeptides/administration & dosage/*metabolism ; Orexin Receptors ; Orexins ; Receptors, Cell Surface/metabolism ; Receptors, G-Protein-Coupled/metabolism ; Receptors, Neuropeptide/metabolism ; Signal Transduction ; *Sleep ; Sleep Deprivation ; *Wakefulness
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  • 48
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-03-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bianchi, Marco E -- Manfredi, Angelo A -- New York, N.Y. -- Science. 2009 Mar 27;323(5922):1683-4. doi: 10.1126/science.1172794.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉San Raffaele University, Faculty of Medicine, and San Raffaele Scientific Institute, via Olgettina 58, 20132 Milano, Italy. bianchi.marco@hsr.it〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19325105" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD24/immunology/metabolism ; Autoimmunity ; HMGB1 Protein/metabolism ; Immunity ; *Immunity, Innate ; Infection/*immunology ; Inflammation/*immunology ; Lectins/immunology/metabolism ; Liver/*immunology/pathology ; Mice ; Necrosis/chemically induced/immunology ; Receptors, Antigen, B-Cell/immunology/metabolism ; Receptors, Pattern Recognition/immunology/metabolism ; Signal Transduction ; Wounds and Injuries/*immunology
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  • 49
    Publication Date: 2009-03-17
    Description: Dendritic cells (DCs) in lymphoid tissue arise from precursors that also produce monocytes and plasmacytoid DCs (pDCs). Where DC and monocyte lineage commitment occurs and the nature of the DC precursor that migrates from the bone marrow to peripheral lymphoid organs are unknown. We show that DC development progresses from the macrophage and DC precursor to common DC precursors that give rise to pDCs and classical spleen DCs (cDCs), but not monocytes, and finally to committed precursors of cDCs (pre-cDCs). Pre-cDCs enter lymph nodes through and migrate along high endothelial venules and later disperse and integrate into the DC network. Further cDC development involves cell division, which is controlled in part by regulatory T cells and fms-like tyrosine kinase receptor-3.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2803315/" 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/PMC2803315/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Kang -- Victora, Gabriel D -- Schwickert, Tanja A -- Guermonprez, Pierre -- Meredith, Matthew M -- Yao, Kaihui -- Chu, Fei-Fan -- Randolph, Gwendalyn J -- Rudensky, Alexander Y -- Nussenzweig, Michel -- P01 AI051573/AI/NIAID NIH HHS/ -- P01 AI051573-010004/AI/NIAID NIH HHS/ -- P01 AI051573-020004/AI/NIAID NIH HHS/ -- P01 AI051573-030004/AI/NIAID NIH HHS/ -- P01 AI051573-040004/AI/NIAID NIH HHS/ -- P01 AI051573-050004/AI/NIAID NIH HHS/ -- P01 AI051573-060004/AI/NIAID NIH HHS/ -- P01 AI051573-069005/AI/NIAID NIH HHS/ -- P01 AI051573-070004/AI/NIAID NIH HHS/ -- P01 AI051573-079005/AI/NIAID NIH HHS/ -- P01 AI051573-080004/AI/NIAID NIH HHS/ -- P01 AI051573-089005/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Apr 17;324(5925):392-7. doi: 10.1126/science.1170540. Epub 2009 Mar 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Immunology, Rockefeller University, New York, NY 10065, USA. liuk@rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19286519" target="_blank"〉PubMed〈/a〉
    Keywords: Adoptive Transfer ; Animals ; Blood Vessels/cytology ; Bone Marrow Cells/cytology ; Cell Differentiation ; Cell Division ; Cell Lineage ; Cell Movement ; Cell Shape ; Dendritic Cells/*cytology/immunology/physiology ; Homeostasis ; Lymph Nodes/blood supply/cytology/immunology ; Lymphoid Tissue/blood supply/*cytology/immunology ; Macrophages/cytology ; Mice ; Monocytes/*cytology ; Myeloid Progenitor Cells/*cytology/physiology ; Parabiosis ; Signal Transduction ; Spleen/cytology/immunology ; T-Lymphocytes, Regulatory/physiology ; Venules/cytology ; fms-Like Tyrosine Kinase 3/genetics/metabolism
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  • 50
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-07-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taubes, Gary -- New York, N.Y. -- Science. 2009 Jul 17;325(5938):256-60. doi: 10.1126/science.325_256.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19608888" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/cytology/metabolism ; Adipose Tissue/metabolism ; Animals ; Chronic Disease ; Cytokines/metabolism ; Diabetes Mellitus, Type 2/physiopathology ; Diglycerides/metabolism ; Fatty Acids/blood/metabolism ; Glucose/metabolism ; Humans ; Inflammation/*physiopathology ; Insulin/*physiology ; *Insulin Resistance ; *Lipid Metabolism ; Liver/metabolism ; Muscles/metabolism ; Obesity/physiopathology ; Receptor, Insulin/metabolism ; Signal Transduction
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  • 51
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-08
    Description: The ends of eukaryotic chromosomes have the potential to be mistaken for damaged or broken DNA and must therefore be protected from cellular DNA damage response pathways. Otherwise, cells might permanently arrest in the cell cycle, and attempts to "repair" the chromosome ends would have devastating consequences for genome integrity. This end-protection problem is solved by protein-DNA complexes called telomeres. Studies of mammalian cells have recently uncovered the mechanism by which telomeres disguise the chromosome ends. Comparison to unicellular eukaryotes reveals key differences in the DNA damage response systems that inadvertently threaten chromosome ends. Telomeres appear to be tailored to these variations, explaining their variable structure and composition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2819049/" 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/PMC2819049/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Lange, Titia -- AG016642/AG/NIA NIH HHS/ -- CA076027/CA/NCI NIH HHS/ -- DP1 OD000379/OD/NIH HHS/ -- DP1 OD000379-01/OD/NIH HHS/ -- DP1 OD000379-02/OD/NIH HHS/ -- DP1 OD000379-03/OD/NIH HHS/ -- DP1 OD000379-04/OD/NIH HHS/ -- DP1 OD000379-05/OD/NIH HHS/ -- GM049046/GM/NIGMS NIH HHS/ -- R01 AG016642/AG/NIA NIH HHS/ -- R01 AG016642-01/AG/NIA NIH HHS/ -- R01 AG016642-02/AG/NIA NIH HHS/ -- R01 AG016642-03/AG/NIA NIH HHS/ -- R01 AG016642-04/AG/NIA NIH HHS/ -- R01 AG016642-05/AG/NIA NIH HHS/ -- R01 AG016642-06/AG/NIA NIH HHS/ -- R01 AG016642-07/AG/NIA NIH HHS/ -- R01 AG016642-08/AG/NIA NIH HHS/ -- R01 AG016642-09/AG/NIA NIH HHS/ -- R01 AG016642-10/AG/NIA NIH HHS/ -- R01 AG016642-11/AG/NIA NIH HHS/ -- R01 CA076027/CA/NCI NIH HHS/ -- R01 CA076027-02/CA/NCI NIH HHS/ -- R01 CA076027-03/CA/NCI NIH HHS/ -- R01 CA076027-04/CA/NCI NIH HHS/ -- R01 CA076027-05A1/CA/NCI NIH HHS/ -- R01 CA076027-06/CA/NCI NIH HHS/ -- R01 CA076027-07/CA/NCI NIH HHS/ -- R01 CA076027-08/CA/NCI NIH HHS/ -- R01 CA076027-09/CA/NCI NIH HHS/ -- R01 CA076027-10/CA/NCI NIH HHS/ -- R01 CA076027-11/CA/NCI NIH HHS/ -- R01 CA076027-11S1/CA/NCI NIH HHS/ -- R01 CA076027-12/CA/NCI NIH HHS/ -- R01 GM049046/GM/NIGMS NIH HHS/ -- R01 GM049046-07/GM/NIGMS NIH HHS/ -- R01 GM049046-08/GM/NIGMS NIH HHS/ -- R01 GM049046-09/GM/NIGMS NIH HHS/ -- R01 GM049046-10/GM/NIGMS NIH HHS/ -- R01 GM049046-11/GM/NIGMS NIH HHS/ -- R01 GM049046-12/GM/NIGMS NIH HHS/ -- R37 GM049046/GM/NIGMS NIH HHS/ -- R37 GM049046-13/GM/NIGMS NIH HHS/ -- R37 GM049046-14/GM/NIGMS NIH HHS/ -- R37 GM049046-15/GM/NIGMS NIH HHS/ -- R37 GM049046-16/GM/NIGMS NIH HHS/ -- R37 GM049046-17/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):948-52. doi: 10.1126/science.1170633.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cell Biology and Genetics, Rockefeller University, New York, NY 10021, USA. delange@mail.rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965504" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosomes/physiology ; Chromosomes, Mammalian/*physiology/ultrastructure ; Ciliophora/genetics/metabolism ; DNA/biosynthesis/*metabolism ; DNA Damage ; DNA Repair ; DNA-Binding Proteins/metabolism ; Humans ; Repetitive Sequences, Nucleic Acid ; Signal Transduction ; Telomerase/metabolism ; Telomere/*physiology/ultrastructure ; Telomere-Binding Proteins/*metabolism ; Telomeric Repeat Binding Protein 2/metabolism ; Yeasts/genetics/metabolism
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  • 52
    Publication Date: 2009-11-26
    Description: Gene fusions play a critical role in cancer progression. The mechanisms underlying their genesis and cell type specificity are not well understood. About 50% of human prostate cancers display a gene fusion involving the 5' untranslated region of TMPRSS2, an androgen-regulated gene, and the protein-coding sequences of ERG, which encodes an erythroblast transformation-specific (ETS) transcription factor. By studying human prostate cancer cells with fluorescence in situ hybridization, we show that androgen signaling induces proximity of the TMPRSS2 and ERG genomic loci, both located on chromosome 21q22.2. Subsequent exposure of the cells to gamma irradiation, which causes DNA double-strand breaks, facilitates the formation of the TMPRSS2-ERG gene fusion. These results may help explain why TMPRSS2-ERG fusions are restricted to the prostate, which is dependent on androgen signaling.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2935583/" 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/PMC2935583/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mani, Ram-Shankar -- Tomlins, Scott A -- Callahan, Kaitlin -- Ghosh, Aparna -- Nyati, Mukesh K -- Varambally, Sooryanarayana -- Palanisamy, Nallasivam -- Chinnaiyan, Arul M -- P50 CA069568/CA/NCI NIH HHS/ -- P50 CA069568-11S10020/CA/NCI NIH HHS/ -- P50CA69568/CA/NCI NIH HHS/ -- R01 CA132874/CA/NCI NIH HHS/ -- R01 CA132874-01A1/CA/NCI NIH HHS/ -- R01CA132874/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Nov 27;326(5957):1230. doi: 10.1126/science.1178124. Epub 2009 Oct 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Michigan Center for Translational Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19933109" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line, Tumor ; Chromosome Aberrations ; Chromosomes, Human, Pair 21/*genetics/physiology ; DNA Breaks, Double-Stranded ; Dihydrotestosterone/*metabolism/pharmacology ; Humans ; In Situ Hybridization, Fluorescence ; Male ; *Oncogene Fusion ; Oncogene Proteins, Fusion/*genetics ; Prostatic Neoplasms/*genetics ; Receptors, Androgen/metabolism ; Serine Endopeptidases/*genetics ; Signal Transduction ; Trans-Activators/*genetics
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  • 53
    Publication Date: 2009-05-16
    Description: Late-phase synaptic plasticity depends on the synthesis of new proteins that must function only in the activated synapses. The synaptic tag hypothesis requires input-specific functioning of these proteins after undirected transport. Confirmation of this hypothesis requires specification of a biochemical tagging activity and an example protein that behaves as the hypothesis predicts. We found that in rat neurons, soma-derived Vesl-1S (Homer-1a) protein, a late-phase plasticity-related synaptic protein, prevailed in every dendrite and did not enter spines. N-methyl-d-aspartate receptor activation triggered input-specific spine entry of Vesl-1S proteins, which met many criteria for synaptic tagging. These results suggest that Vesl-1S supports the hypothesis and that the activity-dependent regulation of spine entry functions as a synaptic tag.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Okada, Daisuke -- Ozawa, Fumiko -- Inokuchi, Kaoru -- New York, N.Y. -- Science. 2009 May 15;324(5929):904-9. doi: 10.1126/science.1171498.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mitsubishi Kagaku Institute of Life Sciences (MITILS), 11 Minamiooya, Machida, Tokyo 194-8511, Japan. dada@mitils.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19443779" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/metabolism ; Carrier Proteins/genetics/*metabolism ; Cells, Cultured ; Dendrites/*metabolism ; Dendritic Spines/*metabolism/ultrastructure ; Hippocampus/cytology/metabolism ; Mice ; *Neuronal Plasticity ; Plasmids ; Protein Transport ; Rats ; Rats, Wistar ; Receptors, N-Methyl-D-Aspartate/metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Synapses/*metabolism ; Synaptic Transmission ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 54
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-09
    Description: Diseased plants often display phenotypes consistent with hormone perturbations. We review recent data that have revealed roles in plant-microbe interactions for cellular components and signaling molecules that previously were associated only with hormone signaling. A better understanding of cross-talk between hormonal and defense signaling pathways should reveal new potential targets for microbial effectors that attenuate host resistance mechanisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grant, Murray R -- Jones, Jonathan D G -- BB/C514115/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 May 8;324(5928):750-2. doi: 10.1126/science.1173771.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Biosciences, University of Exeter, Exeter EX4 4QD, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19423816" target="_blank"〉PubMed〈/a〉
    Keywords: Abscisic Acid/metabolism ; Bacteria/metabolism/*pathogenicity ; Cyclopentanes/metabolism ; Ethylenes/metabolism ; Fungi/metabolism/*pathogenicity ; Gene Expression Regulation, Plant ; Gibberellins/metabolism ; *Host-Pathogen Interactions ; Indoleacetic Acids/metabolism ; Oomycetes/pathogenicity ; Oxylipins/metabolism ; Plant Diseases/*microbiology ; Plant Growth Regulators/*metabolism ; Plant Proteins/metabolism ; Plants/genetics/*metabolism/*microbiology ; Repressor Proteins/metabolism ; Salicylic Acid/metabolism ; Signal Transduction
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  • 55
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-09
    Description: The establishment of arbuscular mycorrhizal (AM) symbioses, formed by most flowering plants in association with glomeromycotan fungi, and the root-nodule (RN) symbiosis, formed by legume plants and rhizobial bacteria, requires an ongoing molecular dialogue that underpins the reprogramming of root cells for compatibility. In both endosymbioses, there are distinct phases to the interaction, including a presymbiotic anticipation phase and, subsequently, an intraradical accommodation of the microsymbiont. Maintenance of the endosymbiosis then depends on reciprocal nutrient exchange with the microsymbiont-obtaining plant photosynthates in exchange for mineral nutrients: enhanced phosphate and nitrogen uptake from AM fungi and fixed nitrogen from rhizobia. Despite the taxonomically distinct groups of symbionts, commonalities are observed in the signaling components and the modulation of host cell responses in both AM and RN symbioses, reflecting common mechanisms for plant cell reprogramming during endosymbiosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Oldroyd, Giles E D -- Harrison, Maria J -- Paszkowski, Uta -- BB/E003850/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2009 May 8;324(5928):753-4. doi: 10.1126/science.1171644.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Disease and Stress Biology, John Innes Centre, Norwich NR4 7UH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19423817" target="_blank"〉PubMed〈/a〉
    Keywords: *Bacterial Physiological Phenomena ; Gene Expression Regulation, Plant ; Lipopolysaccharides/metabolism ; Mycorrhizae/growth & development/*physiology ; Nitrogen Fixation ; Plant Proteins/metabolism ; Plant Root Nodulation ; Plant Roots/metabolism ; Plants/genetics/*metabolism/*microbiology ; Rhizobiaceae/*physiology ; Root Nodules, Plant/*microbiology ; Signal Transduction ; *Symbiosis ; Transcription Factors/metabolism
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  • 56
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crickmore, Michael A -- New York, N.Y. -- Science. 2009 Dec 4;326(5958):1360-1. doi: 10.1126/science.1184444.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Neurogenetics and Behavior, Rockefeller University, New York, NY 10065, USA. mcrickmore@rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965749" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Awards and Prizes ; Drosophila Proteins/*genetics/*metabolism/*physiology ; Drosophila melanogaster/*anatomy & histology/genetics/metabolism ; Gene Expression Regulation, Developmental ; *Genes, Homeobox ; Genes, Insect ; Homeodomain Proteins/*genetics/*physiology ; Organ Size ; Protein-Serine-Threonine Kinases/genetics/metabolism ; Receptors, Cell Surface/genetics/metabolism ; Signal Transduction ; Transcription Factors/*genetics/*physiology ; Wings, Animal/*anatomy & histology/cytology/growth & development/metabolism
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  • 57
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-05-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kidd, Thomas -- New York, N.Y. -- Science. 2009 May 15;324(5929):893-4. doi: 10.1126/science.1174216.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Nevada, Reno, NV 89557, USA. tkidd@unr.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19443775" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/*physiology ; Cell Adhesion Molecules/metabolism ; Drosophila Proteins/*genetics/metabolism ; Drosophila melanogaster/*genetics/growth & development/metabolism ; *Gene Expression Regulation, Developmental ; Membrane Proteins/*genetics/metabolism ; Mutation ; Nerve Growth Factors/metabolism ; Nerve Tissue Proteins/*genetics/metabolism ; Nervous System/growth & development ; Neurons/*physiology ; Receptors, Cell Surface/genetics/*metabolism ; Signal Transduction
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  • 58
    Publication Date: 2009-05-02
    Description: The plant hormone abscisic acid (ABA) acts as a developmental signal and as an integrator of environmental cues such as drought and cold. Key players in ABA signal transduction include the type 2C protein phosphatases (PP2Cs) ABI1 and ABI2, which act by negatively regulating ABA responses. In this study, we identify interactors of ABI1 and ABI2 which we have named regulatory components of ABA receptor (RCARs). In Arabidopsis, RCARs belong to a family with 14 members that share structural similarity with class 10 pathogen-related proteins. RCAR1 was shown to bind ABA, to mediate ABA-dependent inactivation of ABI1 or ABI2 in vitro, and to antagonize PP2C action in planta. Other RCARs also mediated ABA-dependent regulation of ABI1 and ABI2, consistent with a combinatorial assembly of receptor complexes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ma, Yue -- Szostkiewicz, Izabela -- Korte, Arthur -- Moes, Daniele -- Yang, Yi -- Christmann, Alexander -- Grill, Erwin -- New York, N.Y. -- Science. 2009 May 22;324(5930):1064-8. doi: 10.1126/science.1172408. Epub 2009 Apr 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lehrstuhl fur Botanik, Technische Universitat Munchen, Am Hochanger 4, D-85354 Freising, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19407143" target="_blank"〉PubMed〈/a〉
    Keywords: Abscisic Acid/*metabolism/pharmacology ; Amino Acid Sequence ; Arabidopsis/genetics/*metabolism/physiology ; Arabidopsis Proteins/antagonists & inhibitors/chemistry/genetics/*metabolism ; Binding Sites ; Carrier Proteins/chemistry/genetics/*metabolism ; Gene Expression Regulation, Plant ; Germination ; Molecular Sequence Data ; Phosphoprotein Phosphatases/antagonists & ; inhibitors/chemistry/genetics/*metabolism ; Plant Roots/growth & development ; Plant Stomata/physiology ; Plants, Genetically Modified ; Point Mutation ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Stereoisomerism ; Up-Regulation
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  • 59
    Publication Date: 2009-05-30
    Description: The neural mechanisms underlying the transition from a drug-nondependent to a drug-dependent state remain elusive. Chronic exposure to drugs has been shown to increase brain-derived neurotrophic factor (BDNF) levels in ventral tegmental area (VTA) neurons. BDNF infusions into the VTA potentiate several behavioral effects of drugs, including psychomotor sensitization and cue-induced drug seeking. We found that a single infusion of BDNF into the VTA promotes a shift from a dopamine-independent to a dopamine-dependent opiate reward system, identical to that seen when an opiate-naive rat becomes dependent and withdrawn. This shift involves a switch in the gamma-aminobutyric acid type A (GABAA) receptors of VTA GABAergic neurons, from inhibitory to excitatory signaling.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2913611/" 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/PMC2913611/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vargas-Perez, Hector -- Ting-A Kee, Ryan -- Walton, Christine H -- Hansen, D Micah -- Razavi, Rozita -- Clarke, Laura -- Bufalino, Mary Rose -- Allison, David W -- Steffensen, Scott C -- van der Kooy, Derek -- AA13666/AA/NIAAA NIH HHS/ -- R01 AA013666/AA/NIAAA NIH HHS/ -- R01 AA013666-09/AA/NIAAA NIH HHS/ -- R01 AA020919/AA/NIAAA NIH HHS/ -- New York, N.Y. -- Science. 2009 Jun 26;324(5935):1732-4. doi: 10.1126/science.1168501. Epub 2009 May 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics, University of Toronto, 160 College Street, Toronto, Ontario M5S 3E1, Canada. vargashector@yahoo.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19478142" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bicuculline/pharmacology ; Brain-Derived Neurotrophic Factor/administration & ; dosage/genetics/*metabolism/*pharmacology ; Conditioning (Psychology) ; Dopamine/physiology ; Dopamine Antagonists/administration & dosage/pharmacology ; Flupenthixol/administration & dosage/pharmacology ; GABA Agonists/pharmacology ; GABA Antagonists/pharmacology ; Heroin Dependence/metabolism ; Male ; Morphine/administration & dosage ; Muscimol/pharmacology ; Opioid-Related Disorders/*metabolism ; RNA, Messenger/genetics/metabolism ; Rats ; Rats, Wistar ; Receptors, GABA-A/metabolism ; *Reward ; Signal Transduction ; Substance Withdrawal Syndrome/metabolism ; Ventral Tegmental Area/drug effects/*metabolism
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  • 60
    Publication Date: 2009-02-21
    Description: Aging induces gradual yet massive cell death in higher organisms, including annual plants. Even so, the underlying regulatory mechanisms are barely known, despite the long-standing interest in this topic. Here, we demonstrate that ORE1, which is a NAC (NAM, ATAF, and CUC) transcription factor, positively regulates aging-induced cell death in Arabidopsis leaves. ORE1 expression is up-regulated concurrently with leaf aging by EIN2 but is negatively regulated by miR164. miR164 expression gradually decreases with aging through negative regulation by EIN2, which leads to the elaborate up-regulation of ORE1 expression. However, EIN2 still contributes to aging-induced cell death in the absence of ORE1. The trifurcate feed-forward pathway involving ORE1, miR164, and EIN2 provides a highly robust regulation to ensure that aging induces cell death in Arabidopsis leaves.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Jin Hee -- Woo, Hye Ryun -- Kim, Jeongsik -- Lim, Pyung Ok -- Lee, In Chul -- Choi, Seung Hee -- Hwang, Daehee -- Nam, Hong Gil -- New York, N.Y. -- Science. 2009 Feb 20;323(5917):1053-7. doi: 10.1126/science.1166386.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Life Sciences, Pohang University of Science and Technology, Hyoja-dong, Pohang, Kyungbuk, 790-784, Republic of Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19229035" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; *Apoptosis ; Arabidopsis/cytology/genetics/*physiology ; Arabidopsis Proteins/genetics/*physiology ; Down-Regulation ; Gene Expression Regulation, Plant ; Genes, Plant ; MicroRNAs/genetics/*physiology ; Mutation ; Plant Leaves/cytology/*physiology ; Plants, Genetically Modified ; RNA, Messenger/genetics/metabolism ; RNA, Plant/genetics/*physiology ; Receptors, Cell Surface/genetics/*physiology ; Signal Transduction ; Transcription Factors/genetics/*physiology ; Up-Regulation
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  • 61
    Publication Date: 2009-05-30
    Description: Intracellular trafficking of the glucose transporter GLUT4 from storage compartments to the plasma membrane is triggered in muscle and fat during the body's response to insulin. Clathrin is involved in intracellular trafficking, and in humans, the clathrin heavy-chain isoform CHC22 is highly expressed in skeletal muscle. We found a role for CHC22 in the formation of insulin-responsive GLUT4 compartments in human muscle and adipocytes. CHC22 also associated with expanded GLUT4 compartments in muscle from type 2 diabetic patients. Tissue-specific introduction of CHC22 in mice, which have only a pseudogene for this protein, caused aberrant localization of GLUT4 transport pathway components in their muscle, as well as features of diabetes. Thus, CHC22-dependent membrane trafficking constitutes a species-restricted pathway in human muscle and fat with potential implications for type 2 diabetes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2975026/" 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/PMC2975026/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vassilopoulos, Stephane -- Esk, Christopher -- Hoshino, Sachiko -- Funke, Birgit H -- Chen, Chih-Ying -- Plocik, Alex M -- Wright, Woodring E -- Kucherlapati, Raju -- Brodsky, Frances M -- GM038093/GM/NIGMS NIH HHS/ -- HD47863/HD/NICHD NIH HHS/ -- R01 GM038093/GM/NIGMS NIH HHS/ -- R01 GM038093-19/GM/NIGMS NIH HHS/ -- R01 GM038093-19S1/GM/NIGMS NIH HHS/ -- R01 GM038093-20A1/GM/NIGMS NIH HHS/ -- R01 HD047863/HD/NICHD NIH HHS/ -- R01 HD047863-01/HD/NICHD NIH HHS/ -- R01 HD047863-02/HD/NICHD NIH HHS/ -- R01 HD047863-03/HD/NICHD NIH HHS/ -- R01 HD047863-04/HD/NICHD NIH HHS/ -- R01 HD047863-05/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2009 May 29;324(5931):1192-6. doi: 10.1126/science.1171529.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioengineering and Therapeutic Sciences, University of California, School of Pharmacy, San Francisco (UCSF), San Francisco, CA 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19478182" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/cytology/*metabolism/ultrastructure ; Animals ; Blood Glucose/metabolism ; Cell Differentiation ; Cell Line ; Cell Membrane/metabolism ; Clathrin/chemistry/*metabolism ; Clathrin Heavy Chains ; Clathrin-Coated Vesicles/*metabolism ; Diabetes Mellitus, Type 2/*metabolism ; Glucose/*metabolism ; Glucose Transporter Type 4/*metabolism ; Humans ; Insulin/blood/pharmacology ; Mice ; Mice, Transgenic ; Muscle Fibers, Skeletal/metabolism ; Muscle, Skeletal/*metabolism/ultrastructure ; Myoblasts/cytology/metabolism/ultrastructure ; Protein Isoforms/chemistry/metabolism ; Protein Transport ; Signal Transduction
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  • 62
    Publication Date: 2009-10-03
    Description: Intraspecific chemical communication is mediated by signals called pheromones. Caenorhabditis elegans secretes a mixture of small molecules (collectively termed dauer pheromone) that regulates entry into the alternate dauer larval stage and also modulates adult behavior via as yet unknown receptors. Here, we identify two heterotrimeric GTP-binding protein (G protein)-coupled receptors (GPCRs) that mediate dauer formation in response to a subset of dauer pheromone components. The SRBC-64 and SRBC-66 GPCRs are members of the large Caenorhabditis-specific SRBC subfamily and are expressed in the ASK chemosensory neurons, which are required for pheromone-induced dauer formation. Expression of both, but not each receptor alone, confers pheromone-mediated effects on heterologous cells. Identification of dauer pheromone receptors will allow a better understanding of the signaling cascades that transduce the context-dependent effects of ecologically important chemical signals.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448937/" 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/PMC4448937/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Kyuhyung -- Sato, Koji -- Shibuya, Mayumi -- Zeiger, Danna M -- Butcher, Rebecca A -- Ragains, Justin R -- Clardy, Jon -- Touhara, Kazushige -- Sengupta, Piali -- F32 GM077943/GM/NIGMS NIH HHS/ -- P30 NS045713/NS/NINDS NIH HHS/ -- P30 NS45713/NS/NINDS NIH HHS/ -- R01 CA024487/CA/NCI NIH HHS/ -- R01 CA24487/CA/NCI NIH HHS/ -- R01 GM056223/GM/NIGMS NIH HHS/ -- R01 GM56223/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 Nov 13;326(5955):994-8. doi: 10.1126/science.1176331. Epub 2009 Oct 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology and National Center for Behavioral Genomics, Brandeis University, Waltham, MA 02454, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19797623" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis elegans/genetics/*growth & development/*physiology ; Caenorhabditis elegans Proteins/genetics/physiology ; Calcium/metabolism ; Cell Line ; Chemoreceptor Cells/metabolism ; Cyclic AMP/metabolism ; Cyclic GMP/metabolism ; GTP-Binding Protein alpha Subunits, Gi-Go/physiology ; Gene Expression Regulation, Developmental ; Genes, Helminth ; Guanylate Cyclase/antagonists & inhibitors/metabolism ; Hexoses/chemistry/physiology ; Humans ; Mutation ; Pheromones/*physiology ; Receptors, G-Protein-Coupled ; Reproduction ; Signal Transduction ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 63
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2009-12-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, Robert H -- New York, N.Y. -- Science. 2009 Dec 11;326(5959):1494-5. doi: 10.1126/science.1183842.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neurology, Biochemistry and Molecular Pharmacology and Program in Neuroscience, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01655, USA. robert.brown@umassmed.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20007892" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/pathology/*physiopathology ; Animals ; Binding Sites ; Carrier Proteins/metabolism ; Disease Models, Animal ; Histone Deacetylases/metabolism ; Mice ; Mice, Transgenic ; MicroRNAs/genetics/*metabolism ; Muscle Cells/enzymology ; Muscle Denervation ; Muscle, Skeletal/innervation/metabolism ; Myostatin/genetics ; Neuromuscular Junction/*pathology/*physiology ; RNA Interference ; Sequence Analysis, RNA ; Signal Transduction
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  • 64
    Publication Date: 2009-03-21
    Description: The gamma-secretase complex plays a role in Alzheimer's disease and cancer progression. The development of clinically useful inhibitors, however, is complicated by the role of the gamma-secretase complex in regulated intramembrane proteolysis of Notch and other essential proteins. Different gamma-secretase complexes containing different Presenilin or Aph1 protein subunits are present in various tissues. Here we show that these complexes have heterogeneous biochemical and physiological properties. Specific inactivation of the Aph1B gamma-secretase in a mouse Alzheimer's disease model led to improvements of Alzheimer's disease-relevant phenotypic features without any Notch-related side effects. The Aph1B complex contributes to total gamma-secretase activity in the human brain, and thus specific targeting of Aph1B-containing gamma-secretase complexes may help generate less toxic therapies for Alzheimer's disease.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2740474/" 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/PMC2740474/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Serneels, Lutgarde -- Van Biervliet, Jerome -- Craessaerts, Katleen -- Dejaegere, Tim -- Horre, Katrien -- Van Houtvin, Tine -- Esselmann, Hermann -- Paul, Sabine -- Schafer, Martin K -- Berezovska, Oksana -- Hyman, Bradley T -- Sprangers, Ben -- Sciot, Raf -- Moons, Lieve -- Jucker, Mathias -- Yang, Zhixiang -- May, Patrick C -- Karran, Eric -- Wiltfang, Jens -- D'Hooge, Rudi -- De Strooper, Bart -- AG 13579/AG/NIA NIH HHS/ -- AG026593/AG/NIA NIH HHS/ -- P01 AG015379/AG/NIA NIH HHS/ -- P01 AG015379-110009/AG/NIA NIH HHS/ -- P01AG015379/AG/NIA NIH HHS/ -- R01 AG026593/AG/NIA NIH HHS/ -- R01 AG026593-01A1/AG/NIA NIH HHS/ -- R01AG026593/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2009 May 1;324(5927):639-42. doi: 10.1126/science.1171176. Epub 2009 Mar 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department for Molecular and Developmental Genetics, VIB, KULeuven, Herestraat 49, 3000 Leuven, Belgium.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19299585" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/drug therapy/*metabolism ; Amyloid Precursor Protein Secretases/antagonists & ; inhibitors/*chemistry/genetics/*metabolism ; Amyloid beta-Peptides/analysis/chemistry/*metabolism ; Amyloid beta-Protein Precursor/metabolism ; Animals ; Brain/*metabolism ; Disease Models, Animal ; Endopeptidases/chemistry/genetics/*metabolism ; Female ; Humans ; Maze Learning ; Membrane Proteins/metabolism ; Memory ; Mice ; Neurons/metabolism ; Peptide Fragments/analysis/metabolism ; Peptide Hydrolases/metabolism ; Presenilin-1/chemistry/genetics/metabolism ; Protein Subunits/chemistry/metabolism ; Receptor, Notch1/metabolism ; Signal Transduction
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  • 65
    Publication Date: 1994-01-07
    Description: Coexpression of the human Met receptor and its ligand, hepatocyte growth factor/scatter factor (HGF/SF), in NIH 3T3 fibroblasts causes the cells to become tumorigenic in nude mice. The resultant tumors display lumen-like morphology, contain carcinoma-like focal areas with intercellular junctions resembling desmosomes, and coexpress epithelial (cytokeratin) and mesenchymal (vimentin) cytoskeletal markers. The tumor cells also display enhanced expression of desmosomal and tight-junction proteins. The apparent mesenchymal to epithelial conversion of the tumor cells mimics the conversion that occurs during embryonic kidney development, suggesting that Met-HGF/SF signaling plays a role in this process as well as in tumors that express both epithelial and mesenchymal markers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tsarfaty, I -- Rong, S -- Resau, J H -- Rulong, S -- da Silva, P P -- Vande Woude, G F -- N01-CO-74101/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1994 Jan 7;263(5143):98-101.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉ABL-Basic Research Program, National Cancer Institute (NCI)-Frederick Cancer Research and Development Center, MD 21702-1201.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7505952" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; *Cell Transformation, Neoplastic ; Desmosomes/ultrastructure ; Epithelial Cells ; Hepatocyte Growth Factor/metabolism/pharmacology ; Keratins/biosynthesis ; Kidney/embryology/metabolism ; Mesoderm/cytology ; Mice ; Mice, Nude ; Neoplasms, Experimental/metabolism/*pathology ; Proto-Oncogene Proteins/genetics/*metabolism ; Proto-Oncogene Proteins c-met ; *Proto-Oncogenes ; Receptor Protein-Tyrosine Kinases/genetics/*metabolism ; Signal Transduction ; Transfection ; Vimentin/biosynthesis
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  • 66
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-03-04
    Description: Conversion of external signals into proliferative responses may be mediated by interactions between signaling pathways that control cell proliferation. Interactions between G alpha s, the alpha subunit of the heterotrimeric guanine nucleotide binding protein that stimulates adenylyl cyclase, and Ras, an important element in growth factor signaling, were studied. Expression of activated G alpha s in NIH 3T3 cells increased intracellular concentrations of adenosine 3',5'-monophosphate (cAMP) and inhibited H-Ras-stimulated DNA synthesis and mitogen-activated protein kinase activity. Activated G alpha s and 8-Br-cAMP suppressed H-Ras-induced transformation of NIH 3T3 cells. Apparently, G alpha s inhibits proliferative signals from Ras by stimulating cAMP production and activating protein kinase A.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, J -- Iyengar, R -- CA-44998/CA/NCI NIH HHS/ -- DK-38761/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1994 Mar 4;263(5151):1278-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Mount Sinai School of Medicine, City University of New York, NY 10029.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8122111" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; 8-Bromo Cyclic Adenosine Monophosphate/pharmacology ; Animals ; Cell Division ; Cell Line ; *Cell Transformation, Neoplastic ; Cyclic AMP/metabolism ; Cyclic AMP-Dependent Protein Kinases/metabolism ; Enzyme Activation ; GTP-Binding Proteins/genetics/*physiology ; *Genes, ras ; Mice ; Mitogen-Activated Protein Kinase 1 ; Mutagenesis, Site-Directed ; Protein-Serine-Threonine Kinases/antagonists & inhibitors/metabolism ; Protein-Tyrosine Kinases/antagonists & inhibitors/metabolism ; Signal Transduction ; Transfection
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  • 67
    Publication Date: 1994-11-11
    Description: Signals mediated by the T cell receptor (TCR) are required for thymocyte maturation and selection. To examine the role of TCR zeta chain signals in development, TCR expression was restored in zeta-deficient mice with transgenic zeta chains that partially or completely lacked sequences required for signal transduction. The zeta chain played a role in thymic development by promoting TCR surface expression, but zeta-mediated signals were not essential because TCRs that contained signaling-deficient zeta chains promoted T cell maturation and transduced signals associated with thymic selection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shores, E W -- Huang, K -- Tran, T -- Lee, E -- Grinberg, A -- Love, P E -- New York, N.Y. -- Science. 1994 Nov 11;266(5187):1047-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematologic Products, Food and Drug Administration, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7526464" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, CD/analysis/genetics ; Antigens, CD4/analysis ; Antigens, CD5 ; Antigens, CD8/analysis ; Antigens, Differentiation, T-Lymphocyte/analysis ; *DNA-Binding Proteins ; Down-Regulation ; Gene Expression ; *Homeodomain Proteins ; Lectins, C-Type ; Lymph Nodes/immunology ; Membrane Proteins/genetics/*physiology ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Proteins/genetics ; RNA, Messenger/genetics/metabolism ; Receptors, Antigen, T-Cell/genetics/*physiology ; Signal Transduction ; T-Lymphocytes/cytology/*immunology ; Thymus Gland/immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 68
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-12-02
    Description: Estrogen hormones produce physiological actions within a variety of target sites in the body and during development by activating a specific receptor protein. Hormone responsiveness for the estrogen receptor protein was investigated at different stages of development with the use of gene knockout techniques because no natural genetic mutants have been described. A mutant mouse line without a functional estrogen receptor was created and is being used to assess estrogen responsiveness. Both sexes of these mutant animals are infertile and show a variety of phenotypic changes, some of which are associated with the gonads, mammary glands, reproductive tracts, and skeletal tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Korach, K S -- New York, N.Y. -- Science. 1994 Dec 2;266(5190):1524-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Receptor Biology Section, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7985022" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Estrogens/*physiology ; Female ; Heterozygote ; Homozygote ; Humans ; Infertility, Female/etiology ; Infertility, Male/etiology ; Male ; Mice ; Mice, Knockout ; Mutation ; Phenotype ; Receptors, Estrogen/genetics/*physiology ; Signal Transduction
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  • 69
    Publication Date: 1994-01-07
    Description: Selective activation of cyclic adenosine 3',5'-monophosphate (cAMP)-dependent protein kinase type I (cAKI), but not type II, is sufficient to mediate inhibition of T cell replication induced through the antigen-specific T cell receptor-CD3 (TCR-CD3) complex. Immunocytochemistry and immunoprecipitation studies of the molecular mechanism by which cAKI inhibits TCR-CD3-dependent T cell replication demonstrated that regulatory subunit I alpha, along with its associated kinase activity, translocated to and interacted with the TCR-CD3 complex during T cell activation and capping. Regulatory subunit II alpha did not. When stimulated by cAMP, the cAKI localized to the TCR-CD3 complex may release kinase activity that, through phosphorylation, might uncouple the TCR-CD3 complex from intracellular signaling systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Skalhegg, B S -- Tasken, K -- Hansson, V -- Huitfeldt, H S -- Jahnsen, T -- Lea, T -- New York, N.Y. -- Science. 1994 Jan 7;263(5143):84-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Medical Biochemistry, University of Oslo, Blindern, Norway.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8272870" target="_blank"〉PubMed〈/a〉
    Keywords: Carrier Proteins/analysis/*metabolism ; Cyclic AMP/metabolism ; Cyclic AMP-Dependent Protein Kinase Type II ; Cyclic AMP-Dependent Protein Kinases/analysis/*metabolism ; Enzyme Activation ; Fluorescent Antibody Technique ; Humans ; Immunologic Capping ; *Intracellular Signaling Peptides and Proteins ; Lymphocyte Activation ; Phosphorylation ; Precipitin Tests ; Receptor-CD3 Complex, Antigen, T-Cell/analysis/*metabolism ; Signal Transduction ; T-Lymphocytes/*enzymology/immunology
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  • 70
    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
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  • 71
    Publication Date: 1994-03-25
    Description: The Drosophila decapentaplegic (dpp) gene encodes a transforming growth factor-beta (TGF-beta)-like protein that plays a key role in several aspects of development. Transduction of the DPP signal was investigated by cloning of serine-threonine kinase transmembrane receptors from Drosophila because this type of receptor is specific for the TGF-beta-like ligands. Here evidence is provided demonstrating that the Drosophila saxophone (sax) gene, a previously identified female sterile locus, encodes a TGF-beta-like type I receptor. Embryos from sax mothers and dpp embryos exhibit similar mutant phenotypes during early gastrulation, and these two loci exhibit genetic interactions, which suggest that they are utilized in the same pathway. These data suggest that sax encodes a receptor for dpp.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xie, T -- Finelli, A L -- Padgett, R W -- New York, N.Y. -- Science. 1994 Mar 25;263(5154):1756-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Waksman Institute, Rutgers University, Piscataway, NJ 08855-0759.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8134837" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cloning, Molecular ; Drosophila/embryology/*genetics/metabolism ; *Drosophila Proteins ; Embryo, Nonmammalian/metabolism ; Female ; *Genes, Insect ; Insect Hormones/genetics/*metabolism ; Male ; Molecular Sequence Data ; Mutation ; Protein-Serine-Threonine Kinases/chemistry/*genetics/metabolism ; Receptors, Transforming Growth Factor beta/chemistry/*genetics/metabolism ; Signal Transduction ; Transforming Growth Factor beta/genetics/*metabolism
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  • 72
    Publication Date: 1994-06-03
    Description: The Arabidopsis ABI1 locus is essential for a wide spectrum of abscisic acid (ABA) responses throughout plant development. Here, ABI1 was shown to regulate stomatal aperture in leaves and mitotic activity in root meristems. The ABI1 gene was cloned and predicted to encode a signaling protein. Although its carboxyl-terminal domain is related to serine-threonine phosphatase 2C, the ABI1 protein has a unique amino-terminal extension containing an EF hand calcium-binding site. These results suggest that the ABI1 protein is a Ca(2+)-modulated phosphatase and functions to integrate ABA and Ca2+ signals with phosphorylation-dependent response pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leung, J -- Bouvier-Durand, M -- Morris, P C -- Guerrier, D -- Chefdor, F -- Giraudat, J -- New York, N.Y. -- Science. 1994 Jun 3;264(5164):1448-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut des Sciences Vegetales, Centre National de la Recherche Scientifique UPR 40, Gif-sur-Yvette, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7910981" target="_blank"〉PubMed〈/a〉
    Keywords: Abscisic Acid/*pharmacology ; Amino Acid Sequence ; Arabidopsis/chemistry/cytology/*genetics/physiology ; *Arabidopsis Proteins ; Calcium/*metabolism ; Cloning, Molecular ; *Genes, Plant ; Mitosis ; Molecular Sequence Data ; Mutation ; Phenotype ; Phosphoprotein Phosphatases/chemistry/*genetics/*metabolism ; Phosphorylation ; Plants, Genetically Modified ; Polymorphism, Restriction Fragment Length ; Signal Transduction ; Transformation, Genetic
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  • 73
    Publication Date: 1994-02-25
    Description: The T cell antigen receptor (TCR) initiates signals by interacting with cytoplasmic protein tyrosine kinases (PTKs) through a 17-residue sequence motif [called the antigen recognition activation motif (ARAM)] that is contained in the TCR zeta and CD3 chains. TCR stimulation induces the tyrosine phosphorylation of several cellular substrates, including the ARAMs. Lck kinase activity is required for phosphorylation of two conserved tyrosine residues in an ARAM. This phosphorylation leads to the recruitment of a second cytoplasmic PTK, ZAP-70, through both of the ZAP-70 Src homology 2 domains and its phosphorylation. Thus, TCR signal transduction is initiated by the sequential interaction of two PTKs with TCR ARAMs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Iwashima, M -- Irving, B A -- van Oers, N S -- Chan, A C -- Weiss, A -- AR-20684/AR/NIAMS NIH HHS/ -- GM39553/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1994 Feb 25;263(5150):1136-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7509083" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, CD8/metabolism ; Cell Line ; Cytoplasm/enzymology ; Haplorhini ; Humans ; Lymphocyte Specific Protein Tyrosine Kinase p56(lck) ; Membrane Proteins/*metabolism ; Molecular Sequence Data ; Mutation ; Phosphorylation ; Phosphotyrosine ; Protein-Tyrosine Kinases/*metabolism ; Receptors, Antigen, T-Cell/*metabolism ; Signal Transduction ; Tumor Cells, Cultured ; Tyrosine/analogs & derivatives/metabolism ; ZAP-70 Protein-Tyrosine Kinase
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  • 74
    Publication Date: 1994-03-04
    Description: The 2;5 chromosomal translocation occurs in most anaplastic large-cell non-Hodgkin's lymphomas arising from activated T lymphocytes. This rearrangement was shown to fuse the NPM nucleolar phosphoprotein gene on chromosome 5q35 to a previously unidentified protein tyrosine kinase gene, ALK, on chromosome 2p23. In the predicted hybrid protein, the amino terminus of nucleophosmin (NPM) is linked to the catalytic domain of anaplastic lymphoma kinase (ALK). Expressed in the small intestine, testis, and brain but not in normal lymphoid cells, ALK shows greatest sequence similarity to the insulin receptor subfamily of kinases. Unscheduled expression of the truncated ALK may contribute to malignant transformation in these lymphomas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morris, S W -- Kirstein, M N -- Valentine, M B -- Dittmer, K G -- Shapiro, D N -- Saltman, D L -- Look, A T -- CA 21765/CA/NCI NIH HHS/ -- KO8 CA 01702/CA/NCI NIH HHS/ -- P01 CA 20180/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1994 Mar 4;263(5151):1281-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Experimental Oncology, St. Jude Children's Research Hospital, Memphis, TN 38105.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8122112" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Brain/enzymology ; Cell Transformation, Neoplastic ; Chromosome Walking ; Chromosomes, Human, Pair 2 ; Chromosomes, Human, Pair 5 ; Cloning, Molecular ; Gene Expression Regulation, Neoplastic ; Humans ; Intestine, Small/enzymology ; Lymphoma, Large-Cell, Anaplastic/chemistry/enzymology/*genetics ; Male ; Molecular Sequence Data ; Nuclear Proteins/chemistry/*genetics ; Phosphoproteins/chemistry/*genetics ; Promoter Regions, Genetic ; Protein-Tyrosine Kinases/chemistry/*genetics ; RNA, Messenger/genetics/metabolism ; Receptor Protein-Tyrosine Kinases ; Sequence Alignment ; Signal Transduction ; Testis/enzymology ; *Translocation, Genetic ; Tumor Cells, Cultured
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  • 75
    Publication Date: 1994-06-24
    Description: Mice lacking the known subunit of the type I interferon (IFN) receptor were completely unresponsive to type I IFNs, suggesting that this receptor chain is essential for type I IFN-mediated signal transduction. These mice showed no overt anomalies but were unable to cope with viral infections, despite otherwise normal immune responses. Comparison of mice lacking either type I or type II IFN receptors showed that, at least in response to some viruses, both IFN systems are essential for antiviral defense and are functionally nonredundant.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Muller, U -- Steinhoff, U -- Reis, L F -- Hemmi, S -- Pavlovic, J -- Zinkernagel, R M -- Aguet, M -- New York, N.Y. -- Science. 1994 Jun 24;264(5167):1918-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Molecular Biology I, University of Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8009221" target="_blank"〉PubMed〈/a〉
    Keywords: Alphavirus Infections/immunology ; Animals ; Antibodies, Viral/biosynthesis ; Disease Susceptibility ; Immunity, Innate ; Interferon Type I/*physiology ; Interferon-gamma/*physiology ; Lymphocytic Choriomeningitis/immunology ; Membrane Proteins ; Mice ; Mutation ; Receptor, Interferon alpha-beta ; Receptors, Interferon/genetics/*physiology ; Rhabdoviridae Infections/immunology ; Semliki forest virus ; Signal Transduction ; T-Lymphocytes/immunology ; Vesicular stomatitis Indiana virus ; Virus Diseases/*immunology
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  • 76
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-04-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakamura, Y -- Nakauchi, H -- New York, N.Y. -- Science. 1994 Apr 22;264(5158):588-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8160019" target="_blank"〉PubMed〈/a〉
    Keywords: *Apoptosis ; Base Sequence ; Cell Division ; Cell Line ; Erythropoietin/pharmacology ; Hematopoietic Stem Cells/cytology/*metabolism ; Humans ; Molecular Sequence Data ; Receptors, Erythropoietin/chemistry/genetics/*physiology ; Signal Transduction ; Transfection
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  • 77
    Publication Date: 1994-12-09
    Description: Circadian rhythms of mammals are timed by an endogenous clock with a period of about 24 hours located in the suprachiasmatic nucleus (SCN) of the hypothalamus. Light synchronizes this clock to the external environment by daily adjustments in the phase of the circadian oscillation. The mechanism has been thought to involve the release of excitatory amino acids from retinal afferents to the SCN. Brief treatment of rat SCN in vitro with glutamate (Glu), N-methyl-D-aspartate (NMDA), or nitric oxide (NO) generators produced lightlike phase shifts of circadian rhythms. The SCN exhibited calcium-dependent nitric oxide synthase (NOS) activity. Antagonists of NMDA or NOS pathways blocked Glu effects in vitro, and intracerebroventricular injection of a NOS inhibitor in vivo blocked the light-induced resetting of behavioral rhythms. Together, these data indicate that Glu release, NMDA receptor activation, NOS stimulation, and NO production link light activation of the retina to cellular changes within the SCN mediating the phase resetting of the biological clock.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ding, J M -- Chen, D -- Weber, E T -- Faiman, L E -- Rea, M A -- Gillette, M U -- NS22155/NS/NINDS NIH HHS/ -- R01 NS022155/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 9;266(5191):1713-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell and Structural Biology, University of Illinois, Urbana 61801.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7527589" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Oxidoreductases/metabolism ; Animals ; Arginine/analogs & derivatives/pharmacology ; Biological Clocks/drug effects/*physiology ; Circadian Rhythm/drug effects/*physiology ; Glutamic Acid/*metabolism/pharmacology ; In Vitro Techniques ; Light ; N-Methylaspartate/pharmacology ; NG-Nitroarginine Methyl Ester ; Neurons, Afferent/physiology ; Nitric Oxide/*metabolism ; Nitric Oxide Synthase ; Rats ; Receptors, N-Methyl-D-Aspartate/*metabolism ; Retina/physiology ; Signal Transduction ; Suprachiasmatic Nucleus/drug effects/metabolism/*physiology
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  • 78
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-10-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Touchette, N -- New York, N.Y. -- Science. 1994 Oct 28;266(5185):564-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939703" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Embryonic Development ; *Embryonic and Fetal Development ; *Gene Expression Regulation, Developmental ; Genes ; Humans ; *Morphogenesis ; Signal Transduction
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  • 79
    Publication Date: 1994-06-10
    Description: A homozygous mutation in the kinase domain of ZAP-70, a T cell receptor-associated protein tyrosine kinase, produced a distinctive form of human severe combined immunodeficiency. Manifestations of this disorder included profound immunodeficiency, absence of peripheral CD8+ T cells, and abundant peripheral CD4+ T cells that were refractory to T cell receptor-mediated activation. These findings demonstrate that ZAP-70 is essential for human T cell function and suggest that CD4+ and CD8+ T cells depend on different intracellular signaling pathways to support their development or survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Elder, M E -- Lin, D -- Clever, J -- Chan, A C -- Hope, T J -- Weiss, A -- Parslow, T G -- AI29313/AI/NIAID NIH HHS/ -- GM43574/GM/NIGMS NIH HHS/ -- RR01271/RR/NCRR NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1994 Jun 10;264(5165):1596-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, University of California, San Francisco 94143-0110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8202712" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Cloning, Molecular ; Female ; Frameshift Mutation ; Gene Deletion ; Homozygote ; Humans ; Infant ; Male ; Molecular Sequence Data ; Polymerase Chain Reaction ; Protein-Tyrosine Kinases/*genetics/metabolism ; Receptors, Antigen, T-Cell/*metabolism ; Severe Combined Immunodeficiency/*genetics/immunology ; Signal Transduction ; T-Lymphocyte Subsets/*immunology ; Transfection ; Tumor Cells, Cultured ; ZAP-70 Protein-Tyrosine Kinase
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  • 80
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-10-28
    Description: Rapid advances have been made in the understanding of the genetic basis of development and pattern formation in a variety of model systems. By examining the extent to which these developmental systems are conserved or altered between different organisms, insight can be gained into the evolutionary events that have generated the diversity of organisms around us. The molecular and genetic basis of early pattern formation in Drosophila melanogaster has been particularly well studied, and comparisons to other insects have revealed conservation of some aspects of development, as well as differences that may explain variations in early patterning events.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Patel, N H -- New York, N.Y. -- Science. 1994 Oct 28;266(5185):581-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Embryology, Carnegie Institution of Washington, Baltimore, MD 21210-3399.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939712" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Drosophila melanogaster/*embryology/genetics ; *Embryonic Development ; Gene Expression Regulation, Developmental ; *Genes, Homeobox ; *Genes, Insect ; Insects/embryology/genetics ; Morphogenesis ; Phylogeny ; Signal Transduction
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  • 81
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-10-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1994 Oct 28;266(5185):561-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939701" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Developmental Biology/methods/trends ; *Embryonic Development ; *Embryonic and Fetal Development ; Genes ; Genes, Homeobox ; *Morphogenesis ; Signal Transduction
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  • 82
    Publication Date: 1994-11-04
    Description: The function of keratinocyte growth factor (KGF) in normal and wounded skin was assessed by expression of a dominant-negative KGF receptor transgene in basal keratinocytes. The skin of transgenic mice was characterized by epidermal atrophy, abnormalities in the hair follicles, and dermal hyperthickening. Upon skin injury, inhibition of KGF receptor signaling reduced the proliferation rate of epidermal keratinocytes at the wound edge, resulting in substantially delayed reepithelialization of the wound.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Werner, S -- Smola, H -- Liao, X -- Longaker, M T -- Krieg, T -- Hofschneider, P H -- Williams, L T -- HL-43821/HL/NHLBI NIH HHS/ -- R01 HL32898/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1994 Nov 4;266(5186):819-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cardiovascular Research Institute, University of California at San Francisco (UCSF) 94143-0130.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973639" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Cell Division ; Cell Movement ; Epidermis/pathology ; Epithelial Cells ; Fibroblast Growth Factor 10 ; Fibroblast Growth Factor 7 ; *Fibroblast Growth Factors ; Growth Substances/*physiology ; Hair/cytology/growth & development ; Keratinocytes/*cytology/physiology ; Mice ; Mice, Transgenic ; Phenotype ; Receptor, Fibroblast Growth Factor, Type 2 ; *Receptors, Fibroblast Growth Factor ; Receptors, Growth Factor/genetics/*physiology ; Signal Transduction ; Skin/*cytology ; Wound Healing/*physiology
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  • 83
    Publication Date: 1994-09-23
    Description: Plant disease resistance genes function is highly specific pathogen recognition pathways. PRS2 is a resistance gene of Arabidopsis thaliana that confers resistance against Pseudomonas syringae bacteria that express avirulence gene avrRpt2. RPS2 was isolated by the use of a positional cloning strategy. The derived amino acid sequence of RPS2 contains leucine-rich repeat, membrane-spanning, leucine zipper, and P loop domains. The function of the RPS2 gene product in defense signal transduction is postulated to involve nucleotide triphosphate binding and protein-protein interactions and may also involve the reception of an elicitor produced by the avirulent pathogen.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bent, A F -- Kunkel, B N -- Dahlbeck, D -- Brown, K L -- Schmidt, R -- Giraudat, J -- Leung, J -- Staskawicz, B J -- New York, N.Y. -- Science. 1994 Sep 23;265(5180):1856-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Biology, University of California, Berkeley 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8091210" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/*genetics/microbiology ; *Arabidopsis Proteins ; Chromosome Mapping ; Cloning, Molecular ; Cosmids ; DNA, Complementary/genetics ; Genes, Bacterial ; *Genes, Plant ; Leucine Zippers ; Molecular Sequence Data ; Phenotype ; Plant Diseases/*genetics ; Plant Proteins/chemistry/*genetics ; Pseudomonas/genetics/pathogenicity ; Signal Transduction ; Virulence
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  • 84
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-03-18
    Description: Cultured embryonic cortical neurons from rats were used to explore mechanisms of activity-dependent neuronal survival. Cell survival was increased by the activation of voltage-sensitive calcium channels (VSCCs) but not by activation of N-methyl-D-aspartate receptors. These effects correlated with the expression of brain-derived neurotrophic factor (BDNF) induced by these two classes of calcium channels. Antibodies to BDNF (which block intracellular signaling by BDNF, but not by nerve growth factor, NT3, or NT4/5) reduced the survival of cortical neurons and reversed the VSCC-mediated increase in survival. Thus, endogenous BDNF is a trophic factor for cortical neurons whose expression is VSCC-regulated and that functions in the VSCC-dependent survival of these neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ghosh, A -- Carnahan, J -- Greenberg, M E -- NS28829/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1994 Mar 18;263(5153):1618-23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Molecular Genetics, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7907431" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies ; Brain-Derived Neurotrophic Factor ; Calcium Channels/*physiology ; Cell Division/drug effects ; Cell Survival/drug effects ; Cells, Cultured ; Cerebral Cortex/*cytology ; Cyclic AMP Response Element-Binding Protein/metabolism ; Embryo, Mammalian ; Glutamates/pharmacology ; Glutamic Acid ; N-Methylaspartate/pharmacology ; Nerve Growth Factors/biosynthesis/genetics/immunology/*physiology ; Nerve Tissue Proteins/biosynthesis/genetics/immunology/*physiology ; Neurons/*cytology ; Phosphorylation ; Potassium Chloride/pharmacology ; Rats ; Receptors, N-Methyl-D-Aspartate/physiology ; Signal Transduction
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  • 85
    Publication Date: 1994-11-18
    Description: The T cell antigen receptor (TCR) beta chain regulates early T cell development in the absence of the TCR alpha chain. The developmentally controlled gene described here encodes the pre-TCR alpha (pT alpha) chain, which covalently associates with TCR beta and with the CD3 proteins forms a pre-TCR complex that transduces signals in immature thymocytes. Unlike the lambda 5 pre-B cell receptor protein, the pT alpha chain is a type I transmembrane protein whose cytoplasmic tail contains two potential phosphorylation sites and a Src homology 3 (SH3)-domain binding sequence. Pre-TCR alpha transfection experiments indicated that surface expression of the pre-TCR is controlled by additional developmentally regulated proteins. Identification of the pT alpha gene represents an essential step in the structure-function analysis of the pre-TCR complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saint-Ruf, C -- Ungewiss, K -- Groettrup, M -- Bruno, L -- Fehling, H J -- von Boehmer, H -- New York, N.Y. -- Science. 1994 Nov 18;266(5188):1208-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Unite INSERM 373, Institut Necker, Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973703" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, CD3/metabolism ; Base Sequence ; Cell Line ; *Cloning, Molecular ; DNA, Complementary/genetics ; *Gene Expression Regulation, Developmental ; Gene Rearrangement ; Membrane Glycoproteins/chemistry/*genetics/metabolism ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Open Reading Frames ; Phosphorylation ; Polymerase Chain Reaction ; Rabbits ; Receptors, Antigen, T-Cell, alpha-beta/chemistry/*genetics/metabolism ; Signal Transduction ; T-Lymphocytes/*immunology ; Transfection
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  • 86
    Publication Date: 1994-01-07
    Description: Interleukin-6 (IL-6), leukemia inhibitory factor, oncostatin M, interleukin-11, and ciliary neurotrophic factor bind to receptor complexes that share the signal transducer gp130. Upon binding, the ligands rapidly activate DNA binding of acute-phase response factor (APRF), a protein antigenically related to the p91 subunit of the interferon-stimulated gene factor-3 alpha (ISGF-3 alpha). These cytokines caused tyrosine phosphorylation of APRF and ISGF-3 alpha p91. Protein kinases of the Jak family were also rapidly tyrosine phosphorylated, and both APRF and Jak1 associated with gp130. These data indicate that Jak family protein kinases may participate in IL-6 signaling and that APRF may be activated in a complex with gp130.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lutticken, C -- Wegenka, U M -- Yuan, J -- Buschmann, J -- Schindler, C -- Ziemiecki, A -- Harpur, A G -- Wilks, A F -- Yasukawa, K -- Taga, T -- New York, N.Y. -- Science. 1994 Jan 7;263(5143):89-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Biochemistry, RWTH Aachen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8272872" target="_blank"〉PubMed〈/a〉
    Keywords: *Antigens, CD ; Base Sequence ; Cytokine Receptor gp130 ; Cytokines/pharmacology ; DNA-Binding Proteins/*metabolism ; Humans ; Interferon-Stimulated Gene Factor 3 ; Interferon-Stimulated Gene Factor 3, gamma Subunit ; Interferon-gamma/pharmacology ; Interleukin-6/*pharmacology ; Janus Kinase 1 ; Membrane Glycoproteins/*metabolism ; Molecular Sequence Data ; Phosphorylation ; Protein-Tyrosine Kinases/*metabolism ; STAT1 Transcription Factor ; STAT3 Transcription Factor ; Signal Transduction ; *Trans-Activators ; Transcription Factors/metabolism ; Tumor Cells, Cultured ; Tyrosine/metabolism
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  • 87
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-10-28
    Description: The polarized microtubule cytoskeleton of the Drosophila oocyte directs the localization of the maternal determinants which establish the anterior-posterior (AP) axis of the embryo. Because the formation of this microtubule array is dependent on signals from the follicle cells that surround the oocyte, it has been proposed that AP polarity originates in the follicle cells. Here it is shown that the movement of the oocyte to the posterior of the egg chamber early in oogenesis determines AP polarity in the follicle cell layer, and also in the oocyte. Moreover, the generation of AP asymmetry requires signaling from the germ line to the soma and back again.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gonzalez-Reyes, A -- St Johnston, D -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1994 Oct 28;266(5185):639-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome/CRC Institute, University of Cambridge, England.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939717" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Drosophila ; Embryo, Nonmammalian/*physiology ; Genes, Insect ; *Homeodomain Proteins ; Insect Hormones/genetics ; Microtubules/*physiology ; Models, Biological ; Mutation ; Oocytes/*physiology ; Oogenesis ; RNA, Messenger/genetics/metabolism ; Signal Transduction ; *Trans-Activators
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  • 88
    Publication Date: 1994-08-12
    Description: Mitogen-activated protein (MAP) kinase kinase (MAPKK) activates MAP kinase in a signal transduction pathway that mediates cellular responses to growth and differentiation factors. Oncogenes such as ras, src, raf, and mos have been proposed to transform cells by prolonging the activated state of MAPKK and of components downstream in the signaling pathway. To test this hypothesis, constitutively active MAPKK mutants were designed that had basal activities up to 400 times greater than that of the unphosphorylated wild-type kinase. Expression of these mutants in mammalian cells activated AP-1-regulated transcription. The cells formed transformed foci, grew efficiently in soft agar, and were highly tumorigenic in nude mice. These findings indicate that constitutive activation of MAPKK is sufficient to promote cell transformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mansour, S J -- Matten, W T -- Hermann, A S -- Candia, J M -- Rong, S -- Fukasawa, K -- Vande Woude, G F -- Ahn, N G -- GM48521/GM/NIGMS NIH HHS/ -- N01-CO-74101/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1994 Aug 12;265(5174):966-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of Colorado, Boulder 80309.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8052857" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Amino Acid Sequence ; Animals ; Cell Division ; Cell Line ; *Cell Transformation, Neoplastic ; Enzyme Activation ; Genes, mos ; Mice ; Mitogen-Activated Protein Kinase 1 ; Mitogen-Activated Protein Kinase Kinases ; Molecular Sequence Data ; Mutation ; Phosphorylation ; Protein Kinases/genetics/*metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Protein-Tyrosine Kinases/metabolism ; Proto-Oncogene Proteins c-jun/metabolism ; Signal Transduction ; Transfection
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  • 89
    Publication Date: 1994-11-25
    Description: In this study, the cytokine-producing profile of progenitor T cells (pro-T cells) was determined. During screening of a complementary DNA library generated from activated mouse pro-T cells, a cytokine designated lymphotactin was discovered. Lymphotactin is similar to members of both the Cys-Cys and Cys-X-Cys chemokine families but lacks two of the four cysteine residues that are characteristic of the chemokines. Lymphotactin is also expressed in activated CD8+ T cells and CD4-CD8- T cell receptor alpha beta + thymocytes. It has chemotactic activity for lymphocytes but not for monocytes or neutrophils. The gene encoding lymphotactin maps to chromosome one. Taken together, these observations suggest that lymphotactin represents a novel addition to the chemokine superfamily.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kelner, G S -- Kennedy, J -- Bacon, K B -- Kleyensteuber, S -- Largaespada, D A -- Jenkins, N A -- Copeland, N G -- Bazan, J F -- Moore, K W -- Schall, T J -- New York, N.Y. -- Science. 1994 Nov 25;266(5189):1395-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, DNAX Research Institute of Cellular and Molecular Biology, Palo Alto, CA 94304.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973732" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Calcium/metabolism ; Cell Line ; Chemokine CCL4 ; *Chemokines, C ; *Chemotaxis, Leukocyte ; Cytokines/pharmacology ; Hematopoietic Stem Cells/*immunology ; Humans ; Lymphokines/chemistry/genetics/isolation & purification/pharmacology/*physiology ; Macrophage Inflammatory Proteins ; Mice ; Mice, Inbred BALB C ; Molecular Sequence Data ; Monokines/pharmacology ; Recombinant Proteins ; Sequence Alignment ; Sialoglycoproteins/chemistry/genetics/isolation & ; purification/pharmacology/*physiology ; Signal Transduction ; T-Lymphocyte Subsets/*immunology
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  • 90
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-06-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hall, A -- New York, N.Y. -- Science. 1994 Jun 3;264(5164):1413-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Laboratory for Molecular Cell Biology, University College London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8197454" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Cell Line ; Cell Membrane/*enzymology ; GTP-Binding Proteins/*physiology ; Mitogen-Activated Protein Kinase 1 ; Mitogen-Activated Protein Kinase 3 ; *Mitogen-Activated Protein Kinases ; Models, Biological ; Protein-Tyrosine Kinases/metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-raf ; Signal Transduction
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  • 91
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-12-16
    Description: Multiple genetic changes occur during the evolution of normal cells into cancer cells. This evolution is facilitated in cancer cells by loss of fidelity in the processes that replicate, repair, and segregate the genome. Recent advances in our understanding of the cell cycle reveal how fidelity is normally achieved by the coordinated activity of cyclin-dependent kinases, checkpoint controls, and repair pathways and how this fidelity can be abrogated by specific genetic changes. These insights suggest molecular mechanisms for cellular transformation and may help to identify potential targets for improved cancer therapies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hartwell, L H -- Kastan, M B -- CA 61949/CA/NCI NIH HHS/ -- ES 05777/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1994 Dec 16;266(5192):1821-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, University of Washington, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7997877" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis ; Cell Aging ; *Cell Cycle ; *Cell Transformation, Neoplastic/genetics ; Cyclins/genetics/metabolism ; DNA Damage ; Humans ; Neoplasms/*etiology/pathology/prevention & control/therapy ; Signal Transduction ; Tumor Suppressor Protein p53/genetics/physiology
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  • 92
    Publication Date: 1994-07-22
    Description: During the cell cycle, DNA is replicated and segregated equally into two daughter cells. The DNA damage checkpoint ensures that DNA damage is repaired before mitosis is attempted. Genetic studies of the fission yeast Schizosaccharomyces pombe have identified two genes, rad24 and rad25, that are required for this checkpoint. These genes encode 14-3-3 protein homologs that together provide a function that is essential for cell proliferation. In addition, S. pombe rad24 null mutants, and to a lesser extent rad25 null mutants, enter mitosis prematurely, which indicates that 14-3-3 proteins have a role in determining the timing of mitosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ford, J C -- al-Khodairy, F -- Fotou, E -- Sheldrick, K S -- Griffiths, D J -- Carr, A M -- New York, N.Y. -- Science. 1994 Jul 22;265(5171):533-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research Centre, King Faisal Specialist Hospital, Riyadh, Saudi Arabia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8036497" target="_blank"〉PubMed〈/a〉
    Keywords: 14-3-3 Proteins ; Amino Acid Sequence ; *Cell Cycle Proteins ; Cell Division ; *DNA Damage ; DNA Helicases/chemistry/genetics/*physiology ; DNA Repair ; Fungal Proteins/chemistry/genetics/*physiology ; Genes, Fungal ; Intracellular Signaling Peptides and Proteins ; *Mitosis ; Molecular Sequence Data ; Nerve Tissue Proteins/chemistry/genetics/*physiology ; Phenotype ; Schizosaccharomyces/cytology/genetics/*physiology/radiation effects ; *Schizosaccharomyces pombe Proteins ; Sequence Alignment ; Signal Transduction ; *Tyrosine 3-Monooxygenase
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  • 93
    Publication Date: 1994-11-11
    Description: The interleukin-2 receptor (IL-2R) consists of three subunits: the IL-2R alpha, IL-2R beta, and IL-2R gamma chains, the last of which is also used in the receptors for IL-4, IL-7, and IL-9. Stimulation with IL-2 induces the tyrosine phosphorylation and activation of the Janus kinases Jak1 and Jak3. Jak1 and Jak3 were found to be selectively associated with the "serine-rich" region of IL-2R beta and the carboxyl-terminal region of IL-2R gamma, respectively. Both regions were necessary for IL-2 signaling. Furthermore, Jak3-negative fibroblasts expressing reconstituted IL-2R became responsive to IL-2 after the additional expression of Jak3 complementary DNA. Thus, activation of Jak1 and Jak3 may be a key event in IL-2 signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miyazaki, T -- Kawahara, A -- Fujii, H -- Nakagawa, Y -- Minami, Y -- Liu, Z J -- Oishi, I -- Silvennoinen, O -- Witthuhn, B A -- Ihle, J N -- P30 CA21765/CA/NCI NIH HHS/ -- R01 DK42932/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1994 Nov 11;266(5187):1045-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Molecular and Cellular Biology, Osaka University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973659" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Enzyme Activation ; Humans ; Interleukin-2/*pharmacology ; Janus Kinase 1 ; Janus Kinase 3 ; Protein-Tyrosine Kinases/*metabolism ; Receptors, Interleukin-2/chemistry/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Tyrosine/metabolism
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  • 94
    Publication Date: 1994-11-04
    Description: A protein phosphatase was cloned that interacts with a serine-threonine receptor-like kinase, RLK5, from Arabidopsis thaliana. The phosphatase, designated KAPP (kinase-associated protein phosphatase), is composed of three domains: an amino-terminal signal anchor, a kinase interaction (KI) domain, and a type 2C protein phosphatase catalytic region. Association of RLK5 with the KI domain is dependent on phosphorylation of RLK5 and can be abolished by dephosphorylation. KAPP may function as a signaling component in a pathway involving RLK5.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stone, J M -- Collinge, M A -- Smith, R D -- Horn, M A -- Walker, J C -- New York, N.Y. -- Science. 1994 Nov 4;266(5186):793-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Missouri-Columbia 65211.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7973632" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arabidopsis/*enzymology/genetics ; *Arabidopsis Proteins ; Blotting, Southern ; Catalysis ; Genes, Plant ; Molecular Sequence Data ; Phosphoprotein Phosphatases/chemistry/genetics/*metabolism ; Phosphorylation ; Protein-Serine-Threonine Kinases/*metabolism ; Sequence Homology, Amino Acid ; Signal Transduction
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  • 95
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-10-14
    Description: Mitogen-activated protein kinases (MAP kinases) are common components of signaling pathways induced by diverse growth stimuli. Although the guanidine nucleotide-binding Ras proteins are known to be upstream activators of MAP kinases, the extent to which MAP kinases directly contribute to the mitogenic effect of Ras is as yet undefined. In this study, inhibition of MAP kinases by the MAP kinase phosphatase MKP-1 blocked the induction of DNA synthesis in quiescent rat embryonic fibroblast REF-52 cells by an activated mutant of Ras, V12Ras. These results suggest an essential role for activation of MAP kinases in the transition from the quiescent to the DNA replication phase of the eukaryotic cell cycle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, H -- Tonks, N K -- Bar-Sagi, D -- CA53840/CA/NCI NIH HHS/ -- CA55360/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1994 Oct 14;266(5183):285-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, NY 11724-2208.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939666" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Calcium-Calmodulin-Dependent Protein Kinases/antagonists & inhibitors ; *Cell Cycle Proteins ; Cell Line ; DNA/*biosynthesis ; Dual Specificity Phosphatase 1 ; Enzyme Activation ; G0 Phase ; HeLa Cells ; Humans ; Immediate-Early Proteins/*metabolism/pharmacology ; JNK Mitogen-Activated Protein Kinases ; Mitogen-Activated Protein Kinase 1 ; *Mitogen-Activated Protein Kinases ; Molecular Sequence Data ; Mutation ; *Phosphoprotein Phosphatases ; Protein Phosphatase 1 ; Protein Tyrosine Phosphatases/*metabolism/pharmacology ; Protein-Serine-Threonine Kinases/*antagonists & inhibitors/metabolism ; Protein-Tyrosine Kinases/*antagonists & inhibitors/metabolism ; Rats ; S Phase ; Signal Transduction ; Transfection ; ras Proteins/genetics/*metabolism
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  • 96
    Publication Date: 1994-04-15
    Description: A complementation strategy was developed to define the signaling pathways activated by the Bcr-Abl tyrosine kinase. Transformation inactive point mutants of Bcr-Abl were tested for complementation with c-Myc. Single point mutations in the Src-homology 2 (SH2) domain, the major tyrosine autophosphorylation site of the kinase domain, and the Grb-2 binding site in the Bcr region impaired the transformation of fibroblasts by Bcr-Abl. Hyperexpression of c-Myc efficiently restored transformation activity only to the Bcr-Abl SH2 mutant. These data support a model in which Bcr-Abl activates at least two independent pathways for transformation. This strategy may be useful for discerning signaling pathways activated by other oncogenes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Afar, D E -- Goga, A -- McLaughlin, J -- Witte, O N -- Sawyers, C L -- CA 01551/CA/NCI NIH HHS/ -- CA 53867/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1994 Apr 15;264(5157):424-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Molecular Genetics, University of California-Los Angeles 90024-1489.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8153630" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; Animals ; Base Sequence ; Binding Sites ; Cell Line ; *Cell Transformation, Neoplastic ; Fusion Proteins, bcr-abl/*genetics/physiology ; GRB2 Adaptor Protein ; Gene Expression ; *Genes, abl ; *Genes, myc ; Genetic Complementation Test ; Molecular Sequence Data ; Phosphorylation ; Point Mutation ; Proteins/metabolism ; Proto-Oncogene Proteins c-myc/genetics/physiology ; Rats ; Retroviridae/physiology ; Signal Transduction ; Transfection ; Tyrosine/metabolism
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  • 97
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-10-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J -- New York, N.Y. -- Science. 1994 Oct 21;266(5184):368-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7939678" target="_blank"〉PubMed〈/a〉
    Keywords: *GTP-Binding Proteins/isolation & purification/physiology ; History, 20th Century ; *Nobel Prize ; Signal Transduction ; United States
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  • 98
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1994-05-13
    Description: In both Drosophila melanogaster and Caenorhabditis elegans somatic sex determination, germline sex determination, and dosage compensation are controlled by means of a chromosomal signal known as the X:A ratio. A variety of mechanisms are used for establishing and implementing the chromosomal signal, and these do not appear to be similar in the two species. Instead, the study of sex determination and dosage compensation is providing more general lessons about different types of signaling pathways used to control alternative developmental states of cells and organisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parkhurst, S M -- Meneely, P M -- New York, N.Y. -- Science. 1994 May 13;264(5161):924-32.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8178152" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis elegans/*genetics ; *Dosage Compensation, Genetic ; *Drosophila Proteins ; Drosophila melanogaster/embryology/*genetics ; Female ; Genes, Helminth ; Genes, Insect ; Humans ; Insect Hormones/genetics ; Male ; Mammals/genetics ; *RNA-Binding Proteins ; *Sex Determination Analysis ; Signal Transduction
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  • 99
    Publication Date: 2009-07-11
    Description: mu-Opioid receptor (MOR) agonists represent the gold standard for the treatment of severe pain but may paradoxically also enhance pain sensitivity, that is, lead to opioid-induced hyperalgesia (OIH). We show that abrupt withdrawal from MOR agonists induces long-term potentiation (LTP) at the first synapse in pain pathways. Induction of opioid withdrawal LTP requires postsynaptic activation of heterotrimeric guanine nucleotide-binding proteins and N-methyl-d-aspartate receptors and a rise of postsynaptic calcium concentrations. In contrast, the acute depression by opioids is induced presynaptically at these synapses. Withdrawal LTP can be prevented by tapered withdrawal and shares pharmacology and signal transduction pathways with OIH. These findings provide a previously unrecognized target to selectively combat pro-nociceptive effects of opioids without compromising opioid analgesia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Drdla, Ruth -- Gassner, Matthias -- Gingl, Ewald -- Sandkuhler, Jurgen -- P 18129/Austrian Science Fund FWF/Austria -- New York, N.Y. -- Science. 2009 Jul 10;325(5937):207-10. doi: 10.1126/science.1171759.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurophysiology, Center for Brain Research, Medical University of Vienna, Spitalgasse 4, 1090 Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19590003" target="_blank"〉PubMed〈/a〉
    Keywords: Analgesics, Opioid/administration & dosage/*adverse effects/pharmacology ; Animals ; Calcium/metabolism ; Enkephalin, Ala(2)-MePhe(4)-Gly(5)-/administration & dosage/adverse ; effects/pharmacology ; Evoked Potentials ; GTP-Binding Proteins/metabolism ; Hyperalgesia/chemically induced ; *Long-Term Potentiation/drug effects ; Male ; Nerve Fibers, Unmyelinated/physiology ; Patch-Clamp Techniques ; Piperidines/administration & dosage/adverse effects/pharmacology ; Posterior Horn Cells/drug effects/physiology ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/metabolism ; Receptors, Opioid, mu/*agonists ; Signal Transduction ; Substance Withdrawal Syndrome/*physiopathology ; Synapses/drug effects/*physiology
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  • 100
    Publication Date: 2009-05-02
    Description: Type 2C protein phosphatases (PP2Cs) are vitally involved in abscisic acid (ABA) signaling. Here, we show that a synthetic growth inhibitor called pyrabactin functions as a selective ABA agonist. Pyrabactin acts through PYRABACTIN RESISTANCE 1 (PYR1), the founding member of a family of START proteins called PYR/PYLs, which are necessary for both pyrabactin and ABA signaling in vivo. We show that ABA binds to PYR1, which in turn binds to and inhibits PP2Cs. We conclude that PYR/PYLs are ABA receptors functioning at the apex of a negative regulatory pathway that controls ABA signaling by inhibiting PP2Cs. Our results illustrate the power of the chemical genetic approach for sidestepping genetic redundancy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2827199/" 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/PMC2827199/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Sang-Youl -- Fung, Pauline -- Nishimura, Noriyuki -- Jensen, Davin R -- Fujii, Hiroaki -- Zhao, Yang -- Lumba, Shelley -- Santiago, Julia -- Rodrigues, Americo -- Chow, Tsz-Fung F -- Alfred, Simon E -- Bonetta, Dario -- Finkelstein, Ruth -- Provart, Nicholas J -- Desveaux, Darrell -- Rodriguez, Pedro L -- McCourt, Peter -- Zhu, Jian-Kang -- Schroeder, Julian I -- Volkman, Brian F -- Cutler, Sean R -- 01GM59138/GM/NIGMS NIH HHS/ -- R01 GM060396/GM/NIGMS NIH HHS/ -- R01 GM060396-08/GM/NIGMS NIH HHS/ -- R01GM060396/GM/NIGMS NIH HHS/ -- U54GM074901/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2009 May 22;324(5930):1068-71. doi: 10.1126/science.1173041. Epub 2009 Apr 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Botany and Plant Sciences, University of California at Riverside, Riverside, CA 92521, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19407142" target="_blank"〉PubMed〈/a〉
    Keywords: Abscisic Acid/agonists/*metabolism ; Arabidopsis/enzymology/genetics/growth & development/*metabolism ; Arabidopsis Proteins/*antagonists & inhibitors/genetics/*metabolism ; Genes, Plant ; Germination/drug effects ; Ligands ; Membrane Transport Proteins/genetics/*metabolism ; Mutation ; Naphthalenes/chemistry/metabolism/*pharmacology ; Phosphoprotein Phosphatases/*antagonists & inhibitors/metabolism ; Protein Binding ; Recombinant Fusion Proteins/metabolism ; Seeds/growth & development/metabolism ; Signal Transduction ; Sulfonamides/chemistry/metabolism/*pharmacology ; Two-Hybrid System Techniques
    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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