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  • Mice  (184)
  • Signal Transduction  (64)
  • Crystallography, X-Ray  (48)
  • American Association for the Advancement of Science (AAAS)  (262)
  • American Meteorological Society
  • PANGAEA
  • 2000-2004
  • 1995-1999  (262)
  • 1996  (262)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (262)
  • American Meteorological Society
  • PANGAEA
  • Springer  (1)
Years
  • 2000-2004
  • 1995-1999  (262)
Year
  • 1
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    IRS-1-mediated inhibition of insulin receptor tyrosine kinase activity in TNF-alpha- and obesity-induced insulin resistance (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-02
    Description: Tumor necrosis factor-alpha (TNF-alpha) is an important mediator of insulin resistance in obesity and diabetes through its ability to decrease the tyrosine kinase activity of the insulin receptor (IR). Treatment of cultured murine adipocytes with TNF-alpha was shown to induce serine phosphorylation of insulin receptor substrate 1 (IRS-1) and convert IRS-1 into an inhibitor of the IR tyrosine kinase activity in vitro. Myeloid 32D cells, which lack endogenous IRS-1, were resistant to TNF-alpha-mediated inhibition of IR signaling, whereas transfected 32D cells that express IRS-1 were very sensitive to this effect of TNF-alpha. An inhibitory form of IRS-1 was observed in muscle and fat tissues from obese rats. These results indicate that TNF-alpha induces insulin resistance through an unexpected action of IRS-1 to attenuate insulin receptor signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hotamisligil, G S -- Peraldi, P -- Budavari, A -- Ellis, R -- White, M F -- Spiegelman, B M -- DK 42539/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1996 Feb 2;271(5249):665-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Molecular Biology, Dana-Farber Cancer Institute, Boston, MA, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8571133" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/*metabolism ; Adipose Tissue/metabolism ; Animals ; Cells, Cultured ; Insulin/pharmacology ; Insulin Receptor Substrate Proteins ; Insulin Resistance/*physiology ; Male ; Mice ; Muscle, Skeletal/metabolism ; Obesity/*metabolism ; Phosphoproteins/metabolism/*physiology ; Phosphorylation ; Rats ; Rats, Zucker ; Receptor, Insulin/*antagonists & inhibitors/metabolism ; Serine/metabolism ; Signal Transduction ; Tumor Necrosis Factor-alpha/*pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Structure of staphylococcal alpha-hemolysin, a heptameric transmembrane pore (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-12-13
    Description: The structure of the Staphylococcus aureus alpha-hemolysin pore has been determined to 1.9 A resolution. Contained within the mushroom-shaped homo-oligomeric heptamer is a solvent-filled channel, 100 A in length, that runs along the sevenfold axis and ranges from 14 A to 46 A in diameter. The lytic, transmembrane domain comprises the lower half of a 14-strand antiparallel beta barrel, to which each protomer contributes two beta strands, each 65 A long. The interior of the beta barrel is primarily hydrophilic, and the exterior has a hydrophobic belt 28 A wide. The structure proves the heptameric subunit stoichiometry of the alpha-hemolysin oligomer, shows that a glycine-rich and solvent-exposed region of a water-soluble protein can self-assemble to form a transmembrane pore of defined structure, and provides insight into the principles of membrane interaction and transport activity of beta barrel pore-forming toxins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Song, L -- Hobaugh, M R -- Shustak, C -- Cheley, S -- Bayley, H -- Gouaux, J E -- New York, N.Y. -- Science. 1996 Dec 13;274(5294):1859-66.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University of Chicago, 920 East 58 Street, Chicago, IL 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8943190" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Bacterial Toxins/*chemistry/metabolism ; Cell Membrane/chemistry/metabolism ; Crystallography, X-Ray ; Hemolysin Proteins/*chemistry/metabolism ; Hydrogen Bonding ; Lipid Bilayers/*chemistry ; Membrane Potentials ; Models, Molecular ; Molecular Sequence Data ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Staphylococcus aureus/*chemistry
    Print ISSN: 0036-8075
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  • 3
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    DNA looping and lac repressor-CAP interaction (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-12-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Perros, M -- Steitz, T A -- New York, N.Y. -- Science. 1996 Dec 13;274(5294):1929-30; author reply 1931-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8984647" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Crystallography, X-Ray ; Cyclic AMP Receptor Protein/*metabolism ; DNA, Bacterial/chemistry/*metabolism ; Escherichia coli/genetics ; *Lac Operon ; Molecular Sequence Data ; *Nucleic Acid Conformation ; Operator Regions, Genetic ; *Promoter Regions, Genetic ; Protein Binding ; Protein Conformation ; Repressor Proteins/chemistry/*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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  • 4
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    Disputed results now just a footnote (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-07-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1996 Jul 12;273(5272):174-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8668989" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Anti-Idiotypic/*immunology ; Hybridomas ; Immune System/*immunology ; Immunoglobulin Idiotypes/biosynthesis/*immunology ; Mice ; Mice, Transgenic
    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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  • 5
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    Abnormal centrosome amplification in the absence of p53 (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-03-22
    Description: The centrosome plays a vital role in mitotic fidelity, ensuring establishment of bipolar spindles and balanced chromosome segregation. Centrosome duplication occurs only once during the cell cycle and is therefore highly regulated. Here, it is shown that in mouse embryonic fibroblasts (MEFs) lacking the p53 tumor suppressor protein, multiple copies of functionally competent centrosomes are generated during a single cell cycle. In contrast, MEFs prepared from normal mice or mice deficient in the retinoblastoma tumor suppressor gene product do not display these abnormalities. The abnormally amplified centrosomes profoundly affect mitotic fidelity, resulting in unequal segregation of chromosomes. These observations implicate p53 in the regulation of centrosome duplication and suggest one possible mechanism by which the loss of p53 may cause genetic instability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fukasawa, K -- Choi, T -- Kuriyama, R -- Rulong, S -- Vande Woude, G F -- New York, N.Y. -- Science. 1996 Mar 22;271(5256):1744-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉ABL-Basic Research Program, National Cancer Institute, Frederick Cancer Research and Development Center, Frederick, MD 21702-1201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8596939" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood ; Cells, Cultured ; Centrosome/*metabolism ; Culture Media ; Fibroblasts ; Genes, Retinoblastoma ; Genes, p53 ; *Interphase ; Mice ; *Mitosis ; Spindle Apparatus/metabolism/ultrastructure ; Tumor Suppressor Protein p53/*physiology
    Print ISSN: 0036-8075
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  • 6
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    RAC regulation of actin polymerization and proliferation by a pathway distinct from Jun kinase (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-11-22
    Description: The RAC guanine nucleotide binding proteins regulate multiple biological activities, including actin polymerization, activation of the Jun kinase (JNK) cascade, and cell proliferation. RAC effector loop mutants were identified that separate the ability of RAC to interact with different downstream effectors. One mutant of activated human RAC protein, RACV12H40 (with valine and histidine substituted at position 12 and 40, respectively), was defective in binding to PAK3, a Ste20-related p21-activated kinase (PAK), but bound to POR1, a RAC-binding protein. This mutant failed to stimulate PAK and JNK activity but still induced membrane ruffling and mediated transformation. A second mutant, RACV12L37 (with leucine substituted at position 37), which bound PAK but not POR1, induced JNK activation but was defective in inducing membrane ruffling and transformation. These results indicate that the effects of RAC on the JNK cascade and on actin polymerization and cell proliferation are mediated by distinct effector pathways that diverge at the level of RAC itself.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Joneson, T -- McDonough, M -- Bar-Sagi, D -- Van Aelst, L -- CA55360/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1996 Nov 22;274(5291):1374-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, State University of New York, Stony Brook, NY 11794, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8910277" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Actins/*metabolism ; *Adaptor Proteins, Signal Transducing ; Animals ; COS Cells ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Carrier Proteins/metabolism ; *Cell Division ; Cell Line ; Cell Line, Transformed ; Cell Membrane/ultrastructure ; Enzyme Activation ; GTP-Binding Proteins/genetics/metabolism/*physiology ; Humans ; JNK Mitogen-Activated Protein Kinases ; Mice ; *Mitogen-Activated Protein Kinases ; Mutagenesis ; Protein-Serine-Threonine Kinases/metabolism ; Rats ; Transfection ; p21-Activated Kinases ; rac GTP-Binding Proteins
    Print ISSN: 0036-8075
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  • 7
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    Inhibition of myogenic bHLH and MEF2 transcription factors by the bHLH protein Twist (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-06-07
    Description: The myogenic basic helix-loop-helix (bHLH) and MEF2 transcription factors are expressed in the myotome of developing somites and cooperatively activate skeletal muscle gene expression. The bHLH protein Twist is expressed throughout the epithelial somite and is subsequently excluded from the myotome. Ectopically expressed mouse Twist (Mtwist) was shown to inhibit myogenesis by blocking DNA binding by MyoD, by titrating E proteins, and by inhibiting trans-activation by MEF2. For inhibition of MEF2, Mtwist required heterodimerization with E proteins and an intact basic domain and carboxyl-terminus. Thus, Mtwist inhibits both families of myogenic regulators and may regulate myotome formation temporally or spatially.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Spicer, D B -- Rhee, J -- Cheung, W L -- Lassar, A B -- 5-F32-AR08214-02/AR/NIAMS NIH HHS/ -- New York, N.Y. -- Science. 1996 Jun 7;272(5267):1476-80.〈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/8633239" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Basic Helix-Loop-Helix Transcription Factors ; Cell Differentiation ; Cell Line ; Creatine Kinase/genetics ; DNA/metabolism ; DNA-Binding Proteins/*antagonists & inhibitors/chemistry/genetics/metabolism ; Drosophila ; Drosophila Proteins ; Helix-Loop-Helix Motifs/*physiology ; Inhibitor of Differentiation Protein 1 ; MEF2 Transcription Factors ; Mice ; Muscle, Skeletal/*cytology/metabolism ; MyoD Protein/metabolism/physiology ; Myogenic Regulatory Factors ; Nuclear Proteins/chemistry/metabolism/*physiology ; *Repressor Proteins ; TCF Transcription Factors ; Transcription Factor 7-Like 1 Protein ; Transcription Factors/*antagonists & ; inhibitors/chemistry/genetics/metabolism/physiology ; Transcriptional Activation ; Transfection ; Twist Transcription Factor
    Print ISSN: 0036-8075
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  • 8
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    Stimulation of membrane ruffling and MAP kinase activation by distinct effectors of RAS (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-09
    Description: The RAS guanine nucleotide binding proteins activate multiple signaling events that regulate cell growth and differentiation. In quiescent fibroblasts, ectopic expression of activated H-RAS (H-RASV12, where V12 indicates valine-12) induces membrane ruffling, mitogen-activated protein (MAP) kinase activation, and stimulation of DNA synthesis. A mutant of activated H-RAS, H-RASV12C40 (where C40 indicates cysteine-40), was identified that was defective for MAP kinase activation and stimulation of DNA synthesis, but retained the ability to induce membrane ruffling. Another mutant of activated H-RAS, H-RASV12S35 (where S35 indicates serine-35), which activates MAP kinase, was defective for stimulation of membrane ruffling and induction of DNA synthesis. Expression of both mutants resulted in a stimulation of DNA synthesis that was comparable to that induced by H-RASV12. These results indicate that membrane ruffling and activation of MAP kinase represent distinct RAS effector pathways and that input from both pathways is required for the mitogenic activity of RAS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Joneson, T -- White, M A -- Wigler, M H -- Bar-Sagi, D -- CA 55360/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1996 Feb 9;271(5250):810-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Genetics and Microbiology, State University of New York at Stony Brook 11794, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8628998" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Cell Division ; Cell Line ; Cell Membrane/*ultrastructure ; DNA/biosynthesis ; Enzyme Activation ; GTP-Binding Proteins/genetics/metabolism ; Microinjections ; Mutation ; Plasmids ; Protein-Serine-Threonine Kinases/*metabolism ; Proto-Oncogene Proteins/*metabolism ; Proto-Oncogene Proteins c-raf ; Rats ; Signal Transduction ; rac GTP-Binding Proteins ; ras Proteins/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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  • 9
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    An enhanced immune response in mice lacking the transcription factor NFAT1 (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-05-10
    Description: Transcription factors of the NFAT family are thought to play a major role in regulating the expression of cytokine genes and other inducible genes during the immune response. The role of NFAT1 was investigated by targeted disruption of the NFAT1 gene. Unexpectedly, cells from NFAT1 -/- mice showed increased primary responses to Leishmania major and mounted increased secondary responses to ovalbumin in vitro. In an in vivo model of allergic inflammation, the accumulation of eosinophils and levels of serum immunoglobulin E were increased in NFAT1 -/- mice. These results suggest that NFAT1 exerts a negative regulatory influence on the immune response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xanthoudakis, S -- Viola, J P -- Shaw, K T -- Luo, C -- Wallace, J D -- Bozza, P T -- Luk, D C -- Curran, T -- Rao, A -- CA42471/CA/NCI NIH HHS/ -- GM46227/GM/NIGMS NIH HHS/ -- P30 CA21765/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1996 May 10;272(5263):892-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neurogenetics Program, Department of CNS Research, Hoffmann-LaRoche, Nutley, NJ 07110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8629027" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, Protozoan/immunology ; Cell Line ; Cytokines/biosynthesis ; DNA-Binding Proteins/genetics/*physiology ; Eosinophils/immunology ; Gene Targeting ; Hypersensitivity/*immunology ; *Immunity ; Immunoglobulin E/biosynthesis ; Immunologic Memory ; Leishmania major/immunology ; *Lymphocyte Activation ; Mice ; Molecular Sequence Data ; NFATC Transcription Factors ; *Nuclear Proteins ; Ovalbumin/immunology ; T-Lymphocytes/immunology ; Transcription Factors/genetics/*physiology
    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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  • 10
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    Antigen presentation and T cell development in H2-M-deficient mice (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-03-01
    Description: HLA-DM (DM) facilitates peptide loading of major histocompatibility complex class II molecules in human cell lines. Mice lacking functional H2-M, the mouse equivalent of DM, have normal amounts of class II molecules at the cell surface, but most of these are associated with invariant chain-derived CLIP peptides. These mice contain large numbers of CD4+ T cells, which is indicative of positive selection in the thymus. Their CD4+ cells were unresponsive to self H2-M-deficient antigen-presenting cells (APCs) but were hyperreactive to wild-type APCs. H2-M-deficient APCs failed to elicit proliferative responses from wild-type T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fung-Leung, W P -- Surh, C D -- Liljedahl, M -- Pang, J -- Leturcq, D -- Peterson, P A -- Webb, S R -- Karlsson, L -- New York, N.Y. -- Science. 1996 Mar 1;271(5253):1278-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉R. W. Johnson Pharmaceutical Research Institute, San Diego, CA 92121, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8638109" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigen Presentation ; Antigen-Presenting Cells/*immunology ; Antigens, Differentiation, B-Lymphocyte/immunology/metabolism ; Base Sequence ; CD4-Positive T-Lymphocytes/*immunology ; Cells, Cultured ; Gene Targeting ; Histocompatibility Antigens Class II/genetics/*immunology/metabolism ; Isoantigens/immunology ; Lymphocyte Activation ; Mice ; Molecular Sequence Data ; Mutation
    Print ISSN: 0036-8075
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  • 11
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    Cooperative DNA binding and sequence-selective recognition conferred by the STAT amino-terminal domain (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-08-09
    Description: STAT proteins (signal transducers and activators of transcription) activate distinct target genes despite having similar DNA binding preferences. The transcriptional specificity of STAT proteins was investigated on natural STAT binding sites near the interferon-gamma gene. These sites are arranged in multiple copies and required cooperative interactions for STAT binding. The conserved amino-terminal domain of STAT proteins was required for cooperative DNA binding, although this domain was not essential for dimerization or binding to a single site. Cooperative binding interactions enabled the STAT proteins to recognize variations of the consensus site. These sites can be specific for the different STAT proteins and may function to direct selective transcriptional activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, X -- Sun, Y L -- Hoey, T -- New York, N.Y. -- Science. 1996 Aug 9;273(5276):794-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Tularik, Two Corporate Drive, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8670419" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites ; Cell Line ; DNA/*metabolism ; DNA-Binding Proteins/chemistry/immunology/*metabolism ; Interferon-gamma/genetics ; Introns ; Molecular Sequence Data ; Mutation ; Oligodeoxyribonucleotides/metabolism ; Promoter Regions, Genetic ; STAT1 Transcription Factor ; STAT4 Transcription Factor ; Sequence Deletion ; Signal Transduction ; Trans-Activators/chemistry/immunology/*metabolism ; *Transcriptional Activation
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  • 12
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    Resistance to Leishmania major induced by tolerance to a single antigen (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-10-18
    Description: In mice, susceptibility to Leishmania major is associated with the early expansion of T helper 2 cells (TH2) cells, but nothing is known of the specificity of these cells. A previously identified antigen, Leishmania homolog of receptors for activated C kinase (LACK), was found to be the focus of this initial response. Mice made tolerant to LACK by the transgenic expression of the antigen in the thymus exhibited both a diminished TH2 response and a healing phenotype. Thus, T cells that are activated early and are reactive to a single antigen play a pivotal role in directing the immune response to the entire parasite.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Julia, V -- Rassoulzadegan, M -- Glaichenhaus, N -- New York, N.Y. -- Science. 1996 Oct 18;274(5286):421-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CNRS, Institut de Pharmacologie Moleculaire et Cellulaire, 660 Route des Lucioles, 06560 Valbonne, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8832890" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, Protozoan/*immunology ; Crosses, Genetic ; Female ; Immune Tolerance ; Immunity, Innate ; Immunization ; Interleukin-4/secretion ; Interleukin-5/secretion ; Leishmania major/*immunology ; Leishmaniasis, Cutaneous/*immunology ; Lymphocyte Activation ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Transgenic ; Molecular Sequence Data ; Phenotype ; Protozoan Proteins/*immunology ; Th1 Cells/immunology ; Th2 Cells/*immunology
    Print ISSN: 0036-8075
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  • 13
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    Intestinal secretory defects and dwarfism in mice lacking cGMP-dependent protein kinase II (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-12-20
    Description: Cyclic guanosine 3',5'-monophosphate (cGMP)-dependent protein kinases (cGKs) mediate cellular signaling induced by nitric oxide and cGMP. Mice deficient in the type II cGK were resistant to Escherichia coli STa, an enterotoxin that stimulates cGMP accumulation and intestinal fluid secretion. The cGKII-deficient mice also developed dwarfism that was caused by a severe defect in endochondral ossification at the growth plates. These results indicate that cGKII plays a central role in diverse physiological processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pfeifer, A -- Aszodi, A -- Seidler, U -- Ruth, P -- Hofmann, F -- Fassler, R -- New York, N.Y. -- Science. 1996 Dec 20;274(5295):2082-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut f-ur Pharmakologie und Toxikologie, Technische Universitat Munchen, Biedersteiner Strasse 29, D-80802 M-unchen, Germany. pfeifer@ipt.med.tu-muenchen.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8953039" target="_blank"〉PubMed〈/a〉
    Keywords: 8-Bromo Cyclic Adenosine Monophosphate/pharmacology ; Animals ; Bacterial Toxins/toxicity ; Body Water/secretion ; *Bone Development ; Crosses, Genetic ; Cyclic GMP/analogs & derivatives/metabolism/pharmacology ; Cyclic GMP-Dependent Protein Kinases/deficiency/genetics/*metabolism ; Diarrhea/physiopathology ; Dwarfism/*enzymology/genetics/pathology ; Enterotoxins/toxicity ; Escherichia coli Proteins ; Female ; Gene Deletion ; Growth Plate/enzymology/pathology ; Intestinal Mucosa/*secretion ; Male ; Mice ; Mice, Inbred C57BL ; Osteogenesis ; Signal Transduction
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  • 14
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    G protein-mediated neuronal DNA fragmentation induced by familial Alzheimer's disease-associated mutants of APP (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-05-31
    Description: Missense mutations in the 695-amino acid form of the amyloid precursor protein (APP695) cosegregate with disease phenotype in families with dominantly inherited Alzheimer's disease. These mutations convert valine at position 642 to isoleucine, phenylalanine, or glycine. Expression of these mutant proteins, but not of normal APP695, was shown to induce nucleosomal DNA fragmentation in neuronal cells. Induction of DNA fragmentation required the cytoplasmic domain of the mutants and appeared to be mediated by heterotrimeric guanosine triphosphate-binding proteins (G proteins).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamatsuji, T -- Matsui, T -- Okamoto, T -- Komatsuzaki, K -- Takeda, S -- Fukumoto, H -- Iwatsubo, T -- Suzuki, N -- Asami-Odaka, A -- Ireland, S -- Kinane, T B -- Giambarella, U -- Nishimoto, I -- New York, N.Y. -- Science. 1996 May 31;272(5266):1349-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cardiovascular Research Center, Massachusetts General Hospital, Department of Medicine, Harvard Medical School, Charlestown, MA 02129, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8650548" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*genetics/metabolism ; Amyloid beta-Peptides/metabolism ; Amyloid beta-Protein Precursor/chemistry/genetics/*physiology ; Animals ; Apoptosis ; Base Sequence ; Culture Media, Conditioned ; DNA/*metabolism ; GTP-Binding Proteins/*physiology ; Humans ; Hybrid Cells ; Mice ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Mutation ; Neurons/cytology/*metabolism ; Nucleosomes/*metabolism ; Peptide Fragments/metabolism ; Rats ; Transfection
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  • 15
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    Binding of zinc finger protein ZPR1 to the epidermal growth factor receptor (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-06-21
    Description: ZPR1 is a zinc finger protein that binds to the cytoplasmic tyrosine kinase domain of the epidermal growth factor receptor (EGFR). Deletion analysis demonstrated that this binding interaction is mediated by the zinc fingers of ZPR1 and subdomains X and XI of the EGFR tyrosine kinase. Treatment of mammalian cells with EGF caused decreased binding of ZPR1 to the EGFR and the accumulation of ZPR1 in the nucleus. The effect of EGF to regulate ZPR1 binding is dependent on tyrosine phosphorylation of the EGFR. ZPR1 therefore represents a prototype for a class of molecule that binds to the EGFR and is released from the receptor after activation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Galcheva-Gargova, Z -- Konstantinov, K N -- Wu, I H -- Klier, F G -- Barrett, T -- Davis, R J -- R01-CA58396/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1996 Jun 21;272(5269):1797-802.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, University of Massachusetts Medical School, Worcester, 01605, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8650580" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Carrier Proteins/chemistry/*metabolism/secretion ; Cell Line ; Cell Nucleus/metabolism ; Cloning, Molecular ; Cytoplasm/metabolism ; Epidermal Growth Factor/pharmacology ; Humans ; Immunoblotting ; Male ; Mice ; Molecular Sequence Data ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein Structure, Secondary ; RNA, Messenger/genetics/metabolism ; Receptor, Epidermal Growth Factor/chemistry/*metabolism ; Testis/metabolism ; Type C Phospholipases/metabolism ; Vanadates/pharmacology ; *Zinc Fingers ; src Homology Domains
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  • 16
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    Checkpoints take the next step (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-01-19
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carr, A M -- New York, N.Y. -- Science. 1996 Jan 19;271(5247):314-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Cell Mutation Unit, Sussex University, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8553064" target="_blank"〉PubMed〈/a〉
    Keywords: Ataxia Telangiectasia Mutated Proteins ; *Cell Cycle ; *Cell Cycle Proteins ; Checkpoint Kinase 2 ; *DNA Damage ; DNA Replication ; DNA-Binding Proteins ; Humans ; *Mitosis ; Mutation ; Phosphorylation ; Protein Kinases/genetics/*metabolism ; *Protein-Serine-Threonine Kinases ; Proteins/genetics/metabolism ; Saccharomyces cerevisiae/cytology/metabolism ; *Saccharomyces cerevisiae Proteins ; Schizosaccharomyces/cytology/metabolism ; Signal Transduction ; Tumor Suppressor Proteins
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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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    A docking receptor for HDL cholesterol esters (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-01-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Steinberg, D -- New York, N.Y. -- Science. 1996 Jan 26;271(5248):460-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California at San Diego, La Jolla 92093-0613, USA. dsteinberg@UCSD.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8560256" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD36/genetics/*metabolism ; Biological Transport ; *Carrier Proteins ; Cholesterol/metabolism ; Cholesterol Esters/*metabolism ; Gene Targeting ; Lipoproteins, HDL/genetics/*metabolism ; Liver/metabolism ; *Membrane Proteins ; Mice ; *RNA-Binding Proteins ; *Receptors, Immunologic ; Receptors, Lipoprotein/*metabolism ; Receptors, Scavenger ; Scavenger Receptors, Class B
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  • 18
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    Role of mutant CFTR in hypersusceptibility of cystic fibrosis patients to lung infections (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-01-05
    Description: Cystic fibrosis (CF) patients are hypersusceptible to chronic Pseudomonas aeruginosa lung infections. Cultured human airway epithelial cells expressing the delta F508 allele of the cystic fibrosis transmembrane conductance regulator (CFTR) were defective in uptake of P. aeruginosa compared with cells expressing the wild-type allele. Pseudomonas aeruginosa lipopolysaccharide (LPS)-core oligosaccharide was identified as the bacterial ligand for epithelial cell ingestion; exogenous oligosaccharide inhibited bacterial ingestion in a neonatal mouse model, resulting in increased amounts of bacteria in the lungs. CFTR may contribute to a host-defense mechanism that is important for clearance of P. aeruginosa from the respiratory tract.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3677515/" 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/PMC3677515/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pier, G B -- Grout, M -- Zaidi, T S -- Olsen, J C -- Johnson, L G -- Yankaskas, J R -- Goldberg, J B -- AI22806/AI/NIAID NIH HHS/ -- AI35674/AI/NIAID NIH HHS/ -- HL42384/HL/NHLBI NIH HHS/ -- R01 HL058398/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1996 Jan 5;271(5245):64-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Channing Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115-5899, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8539601" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Cell Line, Transformed ; Cystic Fibrosis/*complications/genetics/microbiology ; Cystic Fibrosis Transmembrane Conductance Regulator/genetics/*physiology ; Disease Susceptibility ; Epithelium/microbiology ; Humans ; Lipopolysaccharides/pharmacology ; Lung/microbiology ; Mice ; Mice, Inbred BALB C ; Pseudomonas Infections/*etiology/microbiology ; Pseudomonas aeruginosa/*physiology ; Respiratory System/*microbiology ; Respiratory Tract Infections/*etiology/microbiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 19
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    Structural basis of ligand discrimination by two related RNA aptamers resolved by NMR spectroscopy (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-05-31
    Description: In a previous study, an RNA aptamer for the specific recognition of arginine was evolved from a parent sequence that bound citrulline specifically. The two RNAs differ at only 3 positions out of 44. The solution structures of the two aptamers complexed to their cognate amino acids have now been determined by two-dimensional nuclear magnetic resonance spectroscopy. Both aptamers contain two asymmetrical internal loops that are not well ordered in the free RNA but that fold into a compact structure upon ligand binding. Those nucleotides common to both RNAs include a conserved cluster of purine residues, three of which form an uneven plane containing a G:G pair, and two other residues nearly perpendicular to that surface. Two of the three variant nucleotides are stacked on the cluster of purines and form a triple contact to the amino acid side chain, whereas the edge of the third variant nucleotide is capping the binding pocket.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, Y -- Kochoyan, M -- Burgstaller, P -- Westhof, E -- Famulok, M -- New York, N.Y. -- Science. 1996 May 31;272(5266):1343-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre de Biochimie Structurale (CBS), Unite Mixte de Recherche, CNRS 9955, Montpellier, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8650546" target="_blank"〉PubMed〈/a〉
    Keywords: Arginine/chemistry/*metabolism ; Base Composition ; Base Sequence ; Citrulline/chemistry/*metabolism ; Crystallography, X-Ray ; Hydrogen Bonding ; Ligands ; Magnetic Resonance Spectroscopy ; Models, Molecular ; Molecular Sequence Data ; Mutation ; *Nucleic Acid Conformation ; RNA/*chemistry/genetics/*metabolism
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  • 20
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    CD40 ligand-dependent T cell activation: requirement of B7-CD28 signaling through CD40 (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-09-27
    Description: The role of CD40 ligand (CD40L) in the primary activation of T cells is not clear. The cellular and humoral immune responses to adenoviral vectors in a murine model of liver-directed gene transfer were studied to define the mechanisms responsible for CD40L-dependent T cell priming. CD40L-deficient mice did not develop effective cytotoxic T cells to transduced hepatocytes, and T cell-dependent B cell responses were absent. Full reconstitution of cellular and humoral immunity was achieved in CD40L-deficient mice by administration of an activating antibody to CD40 that increased expression of B7.2 on spleen cells. Wild-type mice could be made nonresponsive to vector by administration of antibodies to B7. Thus, CD40L-dependent activation of T cells occurs through signaling of CD40 in the antigen-presenting cell to enhance requisite costimulatory pathways that include B7.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, Y -- Wilson, J M -- New York, N.Y. -- Science. 1996 Sep 27;273(5283):1862-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Human Gene Therapy, University of Pennsylvania Medical Center, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8791591" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae/genetics ; Animals ; Antigen-Presenting Cells/immunology ; Antigens, CD/*metabolism ; Antigens, CD28/*metabolism ; Antigens, CD86 ; CD4-Positive T-Lymphocytes/immunology ; CD40 Ligand ; Female ; Gene Transfer Techniques ; Genetic Vectors ; Liver/immunology/metabolism ; *Lymphocyte Activation ; Membrane Glycoproteins/*metabolism ; Mice ; Mice, Inbred C57BL ; *Signal Transduction ; T-Lymphocytes/*immunology ; T-Lymphocytes, Cytotoxic/immunology ; Transgenes
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  • 21
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    Selective activation of NF-kappa B by nerve growth factor through the neurotrophin receptor p75 (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-04-26
    Description: Nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), and neurotrophin-3 (NT-3) selectively bind to distinct members of the Trk family of tyrosine kinase receptors, but all three bind with similar affinities to the neurotrophin receptor p75 (p75NTR). The biological significance of neurotrophin binding to p75NTR in cells that also express Trk receptors has been difficult to ascertain. In the absence of TrkA, NGF binding to p75NGR activated the transcription factor nuclear factor kappa B (NF-kappa B) in rat Schwann cells. This activation was not observed in Schwann cells isolated from mice that lacked p75NTR. The effect was selective for NGF; NF-kappa B was not activated by BDNF or NT-3.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carter, B D -- Kaltschmidt, C -- Kaltschmidt, B -- Offenhauser, N -- Bohm-Matthaei, R -- Baeuerle, P A -- Barde, Y A -- New York, N.Y. -- Science. 1996 Apr 26;272(5261):542-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiochemistry, Max-Planck Institute for Psychiatry, Martinsried, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8614802" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Brain-Derived Neurotrophic Factor ; Cell Nucleus/metabolism ; Cells, Cultured ; DNA/metabolism ; L Cells (Cell Line) ; Mice ; Molecular Sequence Data ; NF-kappa B/*metabolism ; Nerve Growth Factors/*metabolism/pharmacology ; Nerve Tissue Proteins/metabolism/pharmacology ; Neurotrophin 3 ; Proto-Oncogene Proteins/metabolism ; Rats ; Receptor Protein-Tyrosine Kinases/metabolism ; Receptor, Nerve Growth Factor ; Receptor, trkA ; Receptors, Nerve Growth Factor/*metabolism ; Schwann Cells/*metabolism ; Signal Transduction/*physiology
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  • 22
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    Crystal structure of a group I ribozyme domain: principles of RNA packing (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-09-20
    Description: Group I self-splicing introns catalyze their own excision from precursor RNAs by way of a two-step transesterification reaction. The catalytic core of these ribozymes is formed by two structural domains. The 2.8-angstrom crystal structure of one of these, the P4-P6 domain of the Tetrahymena thermophila intron, is described. In the 160-nucleotide domain, a sharp bend allows stacked helices of the conserved core to pack alongside helices of an adjacent region. Two specific long-range interactions clamp the two halves of the domain together: a two-Mg2+-coordinated adenosine-rich corkscrew plugs into the minor groove of a helix, and a GAAA hairpin loop binds to a conserved 11-nucleotide internal loop. Metal- and ribose-mediated backbone contacts further stabilize the close side-by-side helical packing. The structure indicates the extent of RNA packing required for the function of large ribozymes, the spliceosome, and the ribosome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cate, J H -- Gooding, A R -- Podell, E -- Zhou, K -- Golden, B L -- Kundrot, C E -- Cech, T R -- Doudna, J A -- 5T32GM08283-07/GM/NIGMS NIH HHS/ -- GM22778-21/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1996 Sep 20;273(5282):1678-85.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA. doudna@csb.yale.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8781224" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine/chemistry ; Animals ; Base Composition ; Base Sequence ; Binding Sites ; Catalysis ; Crystallography, X-Ray ; Hydrogen Bonding ; *Introns ; Magnesium/chemistry ; Models, Molecular ; Molecular Sequence Data ; *Nucleic Acid Conformation ; Phosphates/chemistry ; Phylogeny ; RNA Splicing ; RNA, Catalytic/*chemistry/metabolism ; RNA, Protozoan/*chemistry/metabolism ; Ribose/chemistry ; Tetrahymena thermophila/genetics
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  • 23
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    Requirement of p27Kip1 for restriction point control of the fibroblast cell cycle (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-05-10
    Description: Cells deprived of serum mitogens will either undergo immediate cell cycle arrest or complete mitosis and arrest in the next cell cycle. The transition from mitogen dependence to mitogen independence occurs in the mid-to late G1 phase of the cell cycle and is called the restriction point. Murine Balb/c-3T3 fibroblasts deprived of serum mitogens accumulated the cyclin-dependent kinase (CDK) inhibitor p27Kip1. This was correlated with inactivation of essential G1 cyclin-CDK complexes and with cell cycle arrest in G1. The ability of specific mitogens to allow transit through the restriction point paralleled their ability to down-regulate p27, and antisense inhibition of p27 expression prevented cell cycle arrest in response to mitogen depletion. Therefore, p27 is an essential component of the pathway that connects mitogenic signals to the cell cycle at the restriction point.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coats, S -- Flanagan, W M -- Nourse, J -- Roberts, J M -- New York, N.Y. -- Science. 1996 May 10;272(5263):877-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8629023" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Amino Acid Sequence ; Animals ; Base Sequence ; *Cell Cycle Proteins ; Culture Media ; Cyclin-Dependent Kinase Inhibitor p27 ; Cyclin-Dependent Kinases/*antagonists & inhibitors/metabolism ; Cyclins/metabolism ; Down-Regulation ; Enzyme Inhibitors/*metabolism ; Epidermal Growth Factor/pharmacology ; *G1 Phase ; Gene Expression/drug effects ; Insulin-Like Growth Factor I/pharmacology ; Mice ; Microtubule-Associated Proteins/biosynthesis/genetics/*metabolism ; Mitogens/pharmacology ; Molecular Sequence Data ; Oligonucleotides, Antisense/pharmacology ; Platelet-Derived Growth Factor/pharmacology ; Proto-Oncogene Proteins c-sis ; *Tumor Suppressor Proteins
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  • 24
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    Complexities in the treatment of autoimmune disease (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-12-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McFarland, H F -- New York, N.Y. -- Science. 1996 Dec 20;274(5295):2037-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Neuroimmunology Branch, National Institutes of Health, Bethesda, MD 20892, USA. henrymcf@helix.nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8984662" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens/immunology ; Autoimmune Diseases/immunology/*therapy ; CD8-Positive T-Lymphocytes/*immunology ; Callithrix ; Cytokines/*immunology ; Diabetes Mellitus, Type 1/immunology/therapy ; Encephalomyelitis, Autoimmune, Experimental/immunology/therapy ; Humans ; Immune Tolerance ; Immunotherapy/*adverse effects ; Mice ; Myelin Proteins ; Myelin-Associated Glycoprotein/immunology ; Myelin-Oligodendrocyte Glycoprotein ; Ovalbumin/immunology ; Th1 Cells/*immunology ; Th2 Cells/*immunology
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  • 25
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    Does leptin contribute to diabetes caused by obesity? (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-11-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taylor, S I -- Barr, V -- Reitman, M -- New York, N.Y. -- Science. 1996 Nov 15;274(5290):1151-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Diabetes Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-1829, USA. simeon_taylor@nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8966588" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/physiology ; Animals ; Carrier Proteins/metabolism ; Diabetes Mellitus/*etiology ; Diabetes Mellitus, Type 2/*etiology ; Gene Expression Regulation, Enzymologic ; Humans ; Insulin/*metabolism ; Insulin Antagonists ; Insulin Receptor Substrate Proteins ; Insulin Resistance ; Leptin ; Liver/metabolism ; Mice ; Mice, Obese ; Obesity/physiopathology ; Phosphoenolpyruvate Carboxykinase (GTP)/genetics ; Phosphoproteins/metabolism ; Phosphorylation ; Proteins/pharmacology/*secretion ; Receptor, Insulin/metabolism ; *Receptors, Cell Surface ; Receptors, Leptin ; Signal Transduction
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  • 26
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    Identification of a putative target for Rho as the serine-threonine kinase protein kinase N (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-02
    Description: Rho, a Ras-like small guanosine triphosphatase, has been implicated in cytoskeletal responses to extracellular signals such as lysophosphatidic acid (LPA) to form stress fibers and focal contacts. The form of RhoA bound to guanosine triphosphate directly bound to and activated a serine-threonine kinase, protein kinase N (PKN). Activated RhoA formed a complex with PKN and activated it in COS-7 cells. PKN was phosphorylated in Swiss 3T3 cells stimulated with LPA, and this phosphorylation was blocked by treatment of cells with botulinum C3 exoenzyme. Activation of Rho may be linked directly to a serine-threonine kinase pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Amano, M -- Mukai, H -- Ono, Y -- Chihara, K -- Matsui, T -- Hamajima, Y -- Okawa, K -- Iwamatsu, A -- Kaibuchi, K -- New York, N.Y. -- Science. 1996 Feb 2;271(5249):648-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Signal Transduction, Nara Institute of Science and Technology, Ikoma, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8571127" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; ADP Ribose Transferases/pharmacology ; Amino Acid Sequence ; Animals ; *Botulinum Toxins ; Cell Line ; Chromatography, Affinity ; Enzyme Activation ; GTP Phosphohydrolases/*metabolism ; GTP-Binding Proteins/*metabolism ; Guanosine Triphosphate/metabolism ; Lysophospholipids/pharmacology ; Mice ; Molecular Sequence Data ; Phosphorylation ; Protein Kinase C/*metabolism ; Recombinant Fusion Proteins/metabolism ; rhoA GTP-Binding Protein
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    A new turn (or two) for twist (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-06-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Michelson, A M -- New York, N.Y. -- Science. 1996 Jun 7;272(5267):1449-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Brigham and Women's Hospital, Boston, MA 02115, USA. michelson@rascal.med.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8633234" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Differentiation ; Drosophila/*embryology/genetics ; Drosophila Proteins ; Gene Expression Regulation, Developmental ; Genes, Insect ; Helix-Loop-Helix Motifs ; Mesoderm/*cytology ; Mice ; Muscles/*cytology ; Nuclear Proteins/genetics/*physiology ; Transcription Factors/genetics/*physiology ; Twist Transcription Factor
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    New data help toxicologists home in on assessing risks (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-04-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaiser, J -- New York, N.Y. -- Science. 1996 Apr 12;272(5259):200.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8602503" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Asthma/*etiology ; Carcinogens/*toxicity ; Glutathione/metabolism ; Humans ; Immune System/drug effects ; Methylene Chloride/metabolism/*toxicity ; Mice ; Nitrogen Dioxide/*toxicity ; Rats
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  • 29
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    New 'Alzheimer's mouse' produced (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-10-11
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J -- New York, N.Y. -- Science. 1996 Oct 11;274(5285):177-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8927978" target="_blank"〉PubMed〈/a〉
    Keywords: *Alzheimer Disease/genetics/metabolism/pathology ; Amyloid beta-Peptides/blood/metabolism ; Amyloid beta-Protein Precursor/*genetics ; Animals ; Brain/pathology ; Brain Chemistry ; *Disease Models, Animal ; Learning Disorders/etiology ; Memory Disorders/etiology ; Mice ; Mice, Inbred C57BL ; *Mice, Transgenic ; Mutation ; Peptide Fragments/blood/metabolism ; Transgenes
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  • 30
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    Control of the gene optomotor-blind in Drosophila wing development by decapentaplegic and wingless (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-03-15
    Description: Diffusible factors of several protein families control appendage outgrowth and patterning in both insects and vertebrates. In Drosophila wing development, the gene decapentaplegic (dpp) is expressed along the anteroposterior compartment boundary. Early wingless (wg) expression is involved in setting up the dorsoventral boundary. Interaction between dpp- and wg-expressing cells promotes appendage outgrowth. Here, it is shown that optomotor-blind (omb) expression is required for distal wing development and is controlled by both dpp and wg. Ectopic omb expression can lead to the growth of additional wings. Thus, omb is essential for wing development and is controlled by two signaling pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grimm, S -- Pflugfelder, G O -- New York, N.Y. -- Science. 1996 Mar 15;271(5255):1601-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Theodor-Boveri-Institut (Biozentrum), Lehrstuhl fur Genetik, Universitat Wurzburg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8599120" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; DNA-Binding Proteins/*genetics/physiology ; Drosophila/*genetics/growth & development ; *Drosophila Proteins ; *Gene Expression Regulation, Developmental ; Genes, Insect ; Insect Hormones/*genetics/physiology ; Larva/genetics/growth & development ; Mutation ; Nerve Tissue Proteins/*genetics/physiology ; Phenotype ; Proto-Oncogene Proteins/*genetics/physiology ; Signal Transduction ; *T-Box Domain Proteins ; Wings, Animal/*growth & development ; Wnt1 Protein
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    Binding of APC to the human homolog of the Drosophila discs large tumor suppressor protein (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-05-17
    Description: The adenomatous polyposis coli gene (APC) is mutated in familial adenomatous polyposis and in sporadic colorectal tumors, and its product binds to the adherens junction protein beta-catenin. Overexpression of APC blocks cell cycle progression. The APC-beta-catenin complex was shown to bind to DLG, the human homolog of the Drosophila discs large tumor suppressor protein. This interaction required the carboxyl-terminal region of APC and the DLG homology repeat region of DLG. APC colocalized with DLG at the lateral cytoplasm in rat colon epithelial cells and at the synapse in cultured hippocampal neurons. These results suggest that the APC-DLG complex may participate in regulation of both cell cycle progression and neuronal function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Matsumine, A -- Ogai, A -- Senda, T -- Okumura, N -- Satoh, K -- Baeg, G H -- Kawahara, T -- Kobayashi, S -- Okada, M -- Toyoshima, K -- Akiyama, T -- New York, N.Y. -- Science. 1996 May 17;272(5264):1020-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncogene Research, Institute for Microbial Diseases, Osaka University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8638125" target="_blank"〉PubMed〈/a〉
    Keywords: Adenomatous Polyposis Coli Protein ; Amino Acid Sequence ; Animals ; Cell Cycle ; Cells, Cultured ; Colon/chemistry/cytology ; Cytoskeletal Proteins/analysis/chemistry/*metabolism ; Drosophila ; *Drosophila Proteins ; Epithelial Cells ; Epithelium/chemistry ; Fluorescent Antibody Technique ; Hippocampus/chemistry/cytology ; Humans ; Insect Hormones/analysis/chemistry/*metabolism ; Mice ; Molecular Sequence Data ; Neurons/chemistry/cytology ; Protein Binding ; Recombinant Fusion Proteins/metabolism ; Synapses/chemistry ; *Trans-Activators ; *Tumor Suppressor Proteins ; beta Catenin
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  • 32
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    Structure of the FKBP12-rapamycin complex interacting with the binding domain of human FRAP (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-07-12
    Description: Rapamycin, a potent immunosuppressive agent, binds two proteins: the FK506-binding protein (FKBP12) and the FKBP-rapamycin-associated protein (FRAP). A crystal structure of the ternary complex of human FKBP12, rapamycin, and the FKBP12-rapamycin-binding (FRB) domain of human FRAP at a resolution of 2.7 angstroms revealed the two proteins bound together as a result of the ability of rapamycin to occupy two different hydrophobic binding pockets simultaneously. The structure shows extensive interactions between rapamycin and both proteins, but fewer interactions between the proteins. The structure of the FRB domain of FRAP clarifies both rapamycin-independent and -dependent effects observed for mutants of FRAP and its homologs in the family of proteins related to the ataxia-telangiectasia mutant gene product, and it illustrates how a small cell-permeable molecule can mediate protein dimerization.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choi, J -- Chen, J -- Schreiber, S L -- Clardy, J -- CA59021/CA/NCI NIH HHS/ -- GM38625/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1996 Jul 12;273(5272):239-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Baker Laboratory, Cornell University, Ithaca, NY 14853-1301, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8662507" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Carrier Proteins/chemistry/genetics/*metabolism ; Crystallography, X-Ray ; DNA-Binding Proteins/chemistry/*metabolism ; Heat-Shock Proteins/chemistry/*metabolism ; Humans ; *Immunophilins ; Models, Molecular ; Mutation ; *Phosphotransferases (Alcohol Group Acceptor) ; Polyenes/*chemistry/*metabolism ; *Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Recombinant Proteins/chemistry/metabolism ; Sirolimus ; TOR Serine-Threonine Kinases ; Tacrolimus Binding Proteins
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  • 33
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    Horizontal cells of the primate retina: cone specificity without spectral opponency (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-02
    Description: The chromatic dimensions of human color vision have a neural basis in the retina. Ganglion cells, the output neurons of the retina, exhibit spectral opponency; they are excited by some wavelengths and inhibited by others. The hypothesis that the opponent circuitry emerges from selective connections between horizontal cell interneurons and cone photoreceptors sensitive to long, middle, and short wavelengths (L-, M-, and S-cones) was tested by physiologically and anatomically characterizing cone connections of horizontal cell mosaics in macaque monkeys. H1 horizontal cells received input only from L- and M-cones, whereas H2 horizontal cells received a strong input from S-cones and a weaker input from L- and M-cones. All cone inputs were the same sign, and both horizontal cell types lacked opponency. Despite cone type selectivity, the horizontal cell cannot be the locus of an opponent transformation in primates, including humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dacey, D M -- Lee, B B -- Stafford, D K -- Pokorny, J -- Smith, V C -- New York, N.Y. -- Science. 1996 Feb 2;271(5249):656-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Structure, University of Washington, Seattle 98195-7420, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8571130" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Color Perception/*physiology ; Dendrites/ultrastructure ; Humans ; Interneurons/cytology/*physiology ; Macaca fascicularis ; Macaca mulatta ; Macaca nemestrina ; Photic Stimulation ; Retinal Cone Photoreceptor Cells/*physiology ; Retinal Ganglion Cells/*physiology ; Signal Transduction ; Visual Pathways
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    A fin-de siecle achievement: charting new waters in vertebrate biology (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-12-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Grunwald, D J -- New York, N.Y. -- Science. 1996 Dec 6;274(5293):1634-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Genetics, Eccles Institute of Human Genetics, University of Utah, Salt Lake City 84112, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8984632" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Congenital Abnormalities/genetics ; *Embryonic Development ; Embryonic Induction ; *Genes ; Humans ; Morphogenesis ; *Mutation ; Phenotype ; Signal Transduction ; Syndrome ; Zebrafish/*embryology/*genetics
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    A mechanism of drug action revealed by structural studies of enoyl reductase (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-12-20
    Description: Enoyl reductase (ENR), an enzyme involved in fatty acid biosynthesis, is the target for antibacterial diazaborines and the front-line antituberculosis drug isoniazid. Analysis of the structures of complexes of Escherichia coli ENR with nicotinamide adenine dinucleotide and either thienodiazaborine or benzodiazaborine revealed the formation of a covalent bond between the 2' hydroxyl of the nicotinamide ribose and a boron atom in the drugs to generate a tight, noncovalently bound bisubstrate analog. This analysis has implications for the structure-based design of inhibitors of ENR, and similarities to other oxidoreductases suggest that mimicking this molecular linkage may have generic applications in other areas of medicinal chemistry.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baldock, C -- Rafferty, J B -- Sedelnikova, S E -- Baker, P J -- Stuitje, A R -- Slabas, A R -- Hawkes, T R -- Rice, D W -- New York, N.Y. -- Science. 1996 Dec 20;274(5295):2107-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Krebs Institute for Biomolecular Research, Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield S10 2TN, UK. D.Rice@sheffield.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8953047" target="_blank"〉PubMed〈/a〉
    Keywords: Anti-Bacterial Agents/*metabolism/pharmacology ; Binding Sites ; Boron Compounds/*metabolism/pharmacology ; Crystallography, X-Ray ; Drug Design ; Drug Resistance, Microbial ; Enoyl-(Acyl-Carrier-Protein) Reductase (NADH) ; Enzyme Inhibitors/*metabolism/pharmacology ; Escherichia coli/enzymology ; Escherichia coli Proteins ; Fatty Acid Synthase, Type II ; Fatty Acid Synthases/antagonists & inhibitors/*chemistry/metabolism ; Hydrogen Bonding ; Models, Molecular ; NAD/*metabolism ; Oxidoreductases/antagonists & inhibitors/*chemistry/metabolism ; Protein Conformation ; Protein Structure, Secondary
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  • 36
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    Age-dependent diarrhea induced by a rotaviral nonstructural glycoprotein (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-04-05
    Description: The rotavirus nonstructural glycoprotein NSP4 is an intracellular receptor that mediates the acquisition of a transient membrane envelope as subviral particles bud into the endoplasmic reticulum. NSP4 also causes an increase in intracellular calcium in insect cells. Purified NSP4 or a peptide corresponding to NSP4 residues 114 to 135 induced diarrhea in young (6 to 10 days old) CD1 mice. This disease response was age-dependent, dose-dependent, and specific. Electrophysiologic data from intestinal mucosa showed that the NSP4 114-135 peptide potentiates chloride secretion by a calcium-dependent signaling pathway. Diarrhea is induced when NSP4, acting as a viral enterotoxin, triggers a signal transduction pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ball, J M -- Tian, P -- Zeng, C Q -- Morris, A P -- Estes, M K -- DK 30144/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1996 Apr 5;272(5258):101-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Virology, Baylor College of Medicine, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8600515" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Amino Acid Sequence ; Animals ; Calcium/metabolism ; Carbachol/pharmacology ; Chlorides/metabolism ; Colforsin/pharmacology ; Diarrhea/*etiology/prevention & control/virology ; Enterotoxins/*toxicity ; Glycoproteins/immunology/*toxicity ; Immune Sera/administration & dosage ; Immunization ; In Vitro Techniques ; Intestinal Mucosa/drug effects/secretion ; Mice ; Molecular Sequence Data ; Peptide Fragments/toxicity ; Receptors, Virus ; Rotavirus/*pathogenicity ; Rotavirus Infections/prevention & control/*virology ; Signal Transduction ; Toxins, Biological ; Viral Nonstructural Proteins/immunology/*toxicity
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  • 37
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    Homocysteine antagonism of nitric oxide-related cytostasis in Salmonella typhimurium (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-04-19
    Description: Nitric oxide (NO) is associated with broad-spectrum antimicrobial activity of particular importance in infections caused by intracellular pathogens. An insertion mutation in the metL gene of Salmonella typhimurium conferred specific hypersusceptibility to S-nitrosothiol NO-donor compounds and attenuated virulence of the organism in mice. The metL gene product catalyzes two proximal metabolic steps required for homocysteine biosynthesis. S-Nitrosothiol resistance was restored by exogenous homocysteine or introduction of the metL gene on a plasmid. Measurement of expression of the homocysteine-sensitive metH gene indicated that S-nitrosothiols may directly deplete intracellular homocysteine. Homocysteine may act as an endogenous NO antagonist in diverse processes including infection, atherosclerosis, and neurologic disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉De Groote, M A -- Testerman, T -- Xu, Y -- Stauffer, G -- Fang, F C -- AI32463/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1996 Apr 19;272(5260):414-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Colorado Health Sciences Center, Denver, CO 80262, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8602531" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aspartokinase Homoserine Dehydrogenase/genetics/*metabolism ; Base Sequence ; Drug Resistance, Microbial ; Female ; Glutathione/analogs & derivatives/pharmacology ; Homocysteine/metabolism/pharmacology/*physiology ; *Mercaptoethanol ; Mice ; Mice, Inbred C3H ; Microbial Sensitivity Tests ; Molecular Sequence Data ; Mutagenesis, Insertional ; Nitric Oxide/*antagonists & inhibitors/metabolism ; Nitroso Compounds/pharmacology ; S-Nitrosoglutathione ; *S-Nitrosothiols ; Salmonella Infections, Animal/microbiology ; Salmonella typhimurium/cytology/drug effects/pathogenicity/*physiology ; Virulence
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  • 38
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    Fertile results: bringing up baby (eggs) (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roush, W -- New York, N.Y. -- Science. 1996 Feb 2;271(5249):594-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8571119" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Culture Techniques ; Cells, Cultured ; Female ; Fertilization in Vitro ; Granulosa Cells/cytology/*physiology ; Mice ; Oocytes/cytology/*physiology ; *Oogenesis ; Organ Culture Techniques ; Ovary/physiology
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  • 39
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    Modified microbe may boost TB vaccine (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-01-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roush, W -- New York, N.Y. -- Science. 1996 Jan 26;271(5248):447.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8560254" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; BCG Vaccine/genetics/*immunology/therapeutic use ; Bacterial Proteins/immunology ; Cytokines/*biosynthesis/genetics/immunology ; Genetic Engineering ; Humans ; Mice ; Mycobacterium tuberculosis/immunology ; Neoplasms/therapy ; T-Lymphocytes/immunology ; Tuberculosis/immunology/prevention & control ; Vaccines, Synthetic/genetics/*immunology/therapeutic use
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  • 40
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    Protein matchmaker may lead new gene therapy to the altar (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-07-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, M -- New York, N.Y. -- Science. 1996 Jul 12;273(5272):183.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8668994" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier Proteins/chemistry/*metabolism ; Crystallography, X-Ray ; DNA-Binding Proteins/chemistry/*metabolism ; *Gene Expression Regulation ; Genetic Therapy ; Growth Hormone/*genetics ; Heat-Shock Proteins/chemistry/*metabolism ; Humans ; *Immunophilins ; Mice ; *Phosphotransferases (Alcohol Group Acceptor) ; Polyenes/chemistry/*metabolism ; Sirolimus ; TOR Serine-Threonine Kinases ; Tacrolimus Binding Proteins
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    The new genomics: global views of biology (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-10-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lander, E S -- New York, N.Y. -- Science. 1996 Oct 25;274(5287):536-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA. lander@genome.wi.mit.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8928008" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bioethics ; DNA/genetics ; Gene Expression ; Genetic Techniques ; Genetic Variation ; *Human Genome Project ; Humans ; Mice ; *Molecular Biology/education ; Proteins/chemistry/metabolism ; RNA/genetics ; Sequence Analysis, DNA
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Requirement for the adapter protein GRB2 in EGF receptor endocytosis (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-06-28
    Description: Activated epidermal growth factor (EGF) receptors induce the formation of various complexes of intracellular signaling proteins that are mediated by SRC homology 2 (SH2) and SH3 domains. The activated receptors are also rapidly internalized into the endocytotic compartment and degraded in lysosomes. EGF stimulation of canine epithelial cells induced a rapid and transient association of the SH3-SH2-SH3 protein GRB2 with dynamin, a guanosine triphosphatase that regulates endocytosis. Disruption of GRB2 interactions by microinjection of a peptide corresponding to the GRB2 SH2 domain or its phosphopeptide ligand blocked EGF receptor endocytosis; other SH2 domains that bind EGF receptors or antibodies that neutralize RAS did not. Both activation and termination of EGF signaling appear to be regulated by the diverse interactions of GRB2.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Z -- Moran, M F -- New York, N.Y. -- Science. 1996 Jun 28;272(5270):1935-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Banting and Best Department of Medical Research, University of Toronto, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8658166" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptor Proteins, Signal Transducing ; Animals ; Antibodies, Monoclonal ; Cell Line ; Dogs ; Dynamins ; *Endocytosis/drug effects ; Epidermal Growth Factor/pharmacology ; GRB2 Adaptor Protein ; GTP Phosphohydrolases/metabolism ; Microinjections ; Peptide Fragments/pharmacology ; Proteins/*metabolism ; Receptor, Epidermal Growth Factor/*metabolism ; Receptors, Transferrin/metabolism ; Recombinant Fusion Proteins/pharmacology ; Signal Transduction ; ras Proteins/immunology/physiology ; src Homology Domains/physiology
    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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    Protein kinase N (PKN) and PKN-related protein rhophilin as targets of small GTPase Rho (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-02
    Description: The Rho guanosine 5'-triphosphatase (GTPase) cycles between the active guanosine triphosphate (GTP)-bound form and the inactive guanosine diphosphate-bound form and regulates cell adhesion and cytokinesis, but how it exerts these actions is unknown. The yeast two-hybrid system was used to clone a complementary DNA for a protein (designated Rhophilin) that specifically bound to GTP-Rho. The Rho-binding domain of this protein has 40 percent identity with a putative regulatory domain of a protein kinase, PKN. PKN itself bound to GTP-Rho and was activated by this binding both in vitro and in vivo. This study indicates that a serine-threonine protein kinase is a Rho effector and presents an amino acid sequence motif for binding to GTP-Rho that may be shared by a family of Rho target proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Watanabe, G -- Saito, Y -- Madaule, P -- Ishizaki, T -- Fujisawa, K -- Morii, N -- Mukai, H -- Ono, Y -- Kakizuka, A -- Narumiya, S -- New York, N.Y. -- Science. 1996 Feb 2;271(5249):645-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Kyoto University Faculty of Medicine, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8571126" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; Animals ; Cell Line ; Cloning, Molecular ; Enzyme Activation ; GTP Phosphohydrolases/*metabolism ; GTP-Binding Proteins/chemistry/*metabolism ; Guanosine Triphosphate/metabolism ; Humans ; Membrane Proteins/*metabolism ; Mice ; Molecular Sequence Data ; Phosphorylation ; Protein Kinase C/chemistry/*metabolism ; *Protein-Serine-Threonine Kinases ; Recombinant Fusion Proteins/metabolism ; Saccharomyces cerevisiae/genetics ; Signal Transduction ; ras Proteins ; *rho GTP-Binding Proteins ; rhoA GTP-Binding Protein ; rhoB GTP-Binding Protein
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Central hypotensive effects of the alpha2a-adrenergic receptor subtype (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-08-09
    Description: alpha2-Adrenergic receptors (alpha2ARs) present in the brainstem decrease blood pressure and are targets for clinically effective antihypertensive drugs. The existence of three alpha2AR subtypes, the lack of subtype-specific ligands, and the cross-reactivity of alpha2AR agonists with imidazoline receptors has precluded an understanding of the role of individual alpha2AR subtypes in the hypotensive response. Gene targeting was used to introduce a point mutation into the alpha2aAR subtype in the mouse genome. The hypotensive response to alpha2AR agonists was lost in the mutant mice, demonstrating that the alpha2aAR subtype plays a principal role in this response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉MacMillan, L B -- Hein, L -- Smith, M S -- Piascik, M T -- Limbird, L E -- HL38120/HL/NHLBI NIH HHS/ -- HL43671/HL/NHLBI NIH HHS/ -- HL48638/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1996 Aug 9;273(5276):801-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8670421" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic alpha-2 Receptor Agonists ; Adrenergic alpha-Agonists/pharmacology ; Animals ; Antihypertensive Agents/pharmacology ; Base Sequence ; Blood Pressure/drug effects/*physiology ; Brain Stem/physiology ; Brimonidine Tartrate ; Gene Targeting ; Heart Rate/drug effects/physiology ; Imidazoles/pharmacology ; Medetomidine ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Point Mutation ; Quinoxalines/pharmacology ; Receptors, Adrenergic, alpha-2/genetics/metabolism/*physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Tumor cells fight back to beat immune system (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-11-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, N -- New York, N.Y. -- Science. 1996 Nov 22;274(5291):1302.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8966600" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD95/*physiology ; *Apoptosis ; Fas Ligand Protein ; Humans ; Melanoma/chemistry/*immunology ; Membrane Glycoproteins/analysis/*physiology ; Mice ; T-Lymphocytes, Cytotoxic/*cytology/immunology ; Tumor Cells, Cultured ; *Tumor Escape
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 46
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    Locus control region function and heterochromatin-induced position effect variegation (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-23
    Description: Human CD2 locus control region (LCR) sequences are shown here to be essential for establishing an open chromatin configuration. Transgenic mice carrying an hCD2 mini-gene attached only to the 3' CD2 transcriptional enhancer exhibited variegated expression when the transgene integrated in the centromere. In contrast, mice carrying a transgene with additional 3' sequences showed no variegation even when the latter integrated in centromeric positions. This result suggests that LCRs operate by ensuring an open chromatin configuration and that a short region, with no enhancer activity, functions in the establishment, maintenance, or both of an open chromatin domain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Festenstein, R -- Tolaini, M -- Corbella, P -- Mamalaki, C -- Parrington, J -- Fox, M -- Miliou, A -- Jones, M -- Kioussis, D -- TGT06S01/Telethon/Italy -- TGT95000/Telethon/Italy -- New York, N.Y. -- Science. 1996 Feb 23;271(5252):1123-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Immunology, National Institute for Medical Research, The Ridgeway, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8599090" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD2/analysis/*genetics ; Centromere/genetics ; Enhancer Elements, Genetic ; *Gene Expression Regulation ; Heterochromatin/*genetics ; Humans ; In Situ Hybridization, Fluorescence ; Mice ; Mice, Transgenic ; *Regulatory Sequences, Nucleic Acid ; T-Lymphocytes/*immunology ; *Transgenes
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 47
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    T cell inactivation linked to Ras block (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-03-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, N -- New York, N.Y. -- Science. 1996 Mar 1;271(5253):1234.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8638102" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD28/metabolism ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; *Clonal Anergy ; Interleukin-2/biosynthesis ; Mice ; Mitogen-Activated Protein Kinase 1 ; Mitogen-Activated Protein Kinase 3 ; *Mitogen-Activated Protein Kinases ; Proto-Oncogene Proteins p21(ras)/*metabolism ; Receptors, Antigen, T-Cell/immunology ; *Signal Transduction ; T-Lymphocytes/*immunology/metabolism
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    Transcription factor IIA: a structure with multiple functions (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-05-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jacobson, R H -- Tjian, R -- New York, N.Y. -- Science. 1996 May 10;272(5263):827-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of California, Berkeley 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8629011" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Crystallography, X-Ray ; DNA/*chemistry/metabolism ; DNA-Binding Proteins/*chemistry/metabolism ; Humans ; Models, Molecular ; Nucleic Acid Conformation ; Protein Conformation ; Protein Structure, Secondary ; TATA Box ; TATA-Box Binding Protein ; Transcription Factor TFIIA ; Transcription Factor TFIID ; Transcription Factors/*chemistry/genetics/*metabolism ; *Transcription, Genetic
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  • 49
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    Antagonistic interactions between wingless and decapentaplegic responsible for dorsal-ventral pattern in the Drosophila Leg (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-09-06
    Description: Subdivision of the limb primordia of Drosophila into anterior and posterior compartments triggers cell interactions that pattern the legs and wings. A comparable compartment-based mechanism is used to pattern the dorsal-ventral axis of the wing. Evidence is presented here for a mechanism based on cell interaction, rather than on compartment formation, that distinguishes dorsal from ventral in the leg. Mutual repression by Wingless and Decapentaplegic signaling systems generates a stable regulatory circuit by which each gene maintains its own expression in a spatially restricted domain. Compartment-independent patterning mechanisms may be used by other organisms during development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brook, W J -- Cohen, S M -- New York, N.Y. -- Science. 1996 Sep 6;273(5280):1373-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉European Molecular Biology Laboratory, Meyerhofstr 1, 69117 Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8703069" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Cell Lineage ; Drosophila/*genetics/growth & development ; *Drosophila Proteins ; Extremities/growth & development ; *Gene Expression Regulation, Developmental ; *Genes, Insect ; Insect Hormones/*genetics/physiology ; Molecular Sequence Data ; Morphogenesis ; Proto-Oncogene Proteins/*genetics/physiology ; Signal Transduction ; Wnt1 Protein
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    Another twist to MHC-peptide recognition (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-05-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, I A -- New York, N.Y. -- Science. 1996 May 17;272(5264):973-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8638141" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigen Presentation ; Antigens/chemistry/*metabolism ; Antigens, Differentiation, B-Lymphocyte/chemistry/*metabolism ; HLA-DR1 Antigen/chemistry/metabolism ; Histocompatibility Antigens Class II/chemistry/immunology/*metabolism ; Humans ; Hydrogen Bonding ; Hydrogen-Ion Concentration ; Mice ; Models, Molecular ; Protein Conformation
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    Will a twist of viral fate lead to a new cancer treatment? (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-10-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, E -- New York, N.Y. -- Science. 1996 Oct 18;274(5286):342-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8927990" target="_blank"〉PubMed〈/a〉
    Keywords: Adenovirus E1B Proteins/*genetics/metabolism ; Adenoviruses, Human/genetics/*physiology ; Animals ; Clinical Trials, Phase I as Topic ; Cytopathogenic Effect, Viral ; Genes, Viral ; *Genes, p53 ; Head and Neck Neoplasms/*therapy/virology ; Humans ; Mice ; Mutation ; Neoplasm Transplantation ; Neoplasms, Experimental/*therapy/virology ; Tumor Suppressor Protein p53/metabolism ; Virus Replication
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  • 52
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    Molecular orientation and two-component nature of the crystalline fraction of spider dragline silk (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-01-05
    Description: The molecular origin of the exceptional mechanical properties of spider silk is unclear. This paper presents solid-state 2H nuclear magnetic resonance data from unoriented, oriented, and supercontracted fibers, indicating that the crystalline fraction of dragline silk consists of two types of alanine-rich regions, one that is highly oriented and one that is poorly oriented and less densely packed. A new model for the molecular-level structure of individual silk molecules and their arrangement in the fibers is proposed. These data suggest that it will be necessary to control the secondary structure of individual polymer molecules in order to obtain optimum properties in bio-inspired polymers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Simmons, A H -- Michal, C A -- Jelinski, L W -- New York, N.Y. -- Science. 1996 Jan 5;271(5245):84-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Advanced Technology in Biotechnology, Cornell University, Ithaca, NY 14853, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8539605" target="_blank"〉PubMed〈/a〉
    Keywords: Alanine/analysis ; Algorithms ; Amino Acid Sequence ; Animals ; Crystallization ; Crystallography, X-Ray ; *Fibroins ; Glycine/analysis ; *Insect Proteins ; Magnetic Resonance Spectroscopy ; Models, Molecular ; Molecular Sequence Data ; Peptides/analysis ; Protein Conformation ; Protein Structure, Secondary ; Proteins/*chemistry ; Silk ; Spiders/*chemistry
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  • 53
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    Identification of MAP kinase domains by redirecting stress signals into growth factor responses (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-06-14
    Description: Mitogen-activated protein kinase (MAPK) cascades, termed MAPK modules, channel extracellular signals into specific cellular responses. Chimeric molecules were constructed between p38 and p44 MAPKs, which transduce stress and growth factor signals, respectively. A discrete region of 40 residues located in the amono-terminal p38MAPK lobe directed the specificity of response to extracellular signals, whereas the p44MAPK chimera, expressed in vivo, redirected stress signals into early mitogenic responses, demonstrating the functional independence of these domains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brunet, A -- Pouyssegur, J -- New York, N.Y. -- Science. 1996 Jun 14;272(5268):1652-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre de Biochemie-CNRS, UMR134, Parc Valrose, Faculte des Sciences, Nice, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8658140" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Anisomycin/pharmacology ; Binding Sites ; Calcium-Calmodulin-Dependent Protein Kinases/genetics/*metabolism ; Cell Division ; Cell Line ; Cricetinae ; Cricetulus ; Enzyme Activation ; Gene Expression Regulation ; Genes, fos ; Growth Substances/metabolism ; Mice ; Mitogen-Activated Protein Kinase 3 ; *Mitogen-Activated Protein Kinases ; Molecular Sequence Data ; Phosphorylation/drug effects ; Protein Kinases/metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Recombinant Fusion Proteins/genetics/metabolism ; Ribosomal Protein S6 Kinases ; Signal Transduction ; Sorbitol/pharmacology ; Substrate Specificity ; p38 Mitogen-Activated Protein Kinases
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  • 54
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    Attenuation of the obesity syndrome of ob/ob mice by the loss of neuropeptide Y (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-12-06
    Description: The obesity syndrome of ob/ob mice results from lack of leptin, a hormone released by fat cells that acts in the brain to suppress feeding and stimulate metabolism. Neuropeptide Y (NPY) is a neuromodulator implicated in the control of energy balance and is overproduced in the hypothalamus of ob/ob mice. To determine the role of NPY in the response to leptin deficiency, ob/ob mice deficient for NPY were generated. In the absence of NPY, ob/ob mice are less obese because of reduced food intake and increased energy expenditure, and are less severely affected by diabetes, sterility, and somatotropic defects. These results suggest that NPY is a central effector of leptin deficiency.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Erickson, J C -- Hollopeter, G -- Palmiter, R D -- New York, N.Y. -- Science. 1996 Dec 6;274(5293):1704-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Biochemistry, University of Washington, Box 357370, Seattle, WA 98195-7370, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8939859" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/pathology ; Animals ; Blood Glucose/analysis ; Body Composition ; Body Height ; Body Weight ; Diabetes Mellitus/etiology ; Diabetes Mellitus, Type 2/etiology ; Eating ; Energy Metabolism ; Female ; Fertility ; Insulin-Like Growth Factor I/metabolism ; Leptin ; Male ; Mice ; Mice, Mutant Strains ; Mice, Obese ; Neuropeptide Y/deficiency/genetics/*physiology ; Obesity/pathology/*physiopathology ; Oxygen Consumption ; Proteins/genetics/*physiology ; RNA, Messenger/metabolism
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  • 55
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    Association of Src tyrosine kinase with a human potassium channel mediated by SH3 domain (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-12-20
    Description: The human Kv1.5 potassium channel (hKv1.5) contains proline-rich sequences identical to those that bind to Src homology 3 (SH3) domains. Direct association of the Src tyrosine kinase with cloned hKv1.5 and native hKv1.5 in human myocardium was observed. This interaction was mediated by the proline-rich motif of hKv1.5 and the SH3 domain of Src. Furthermore, hKv1.5 was tyrosine phosphorylated, and the channel current was suppressed, in cells coexpressing v-Src. These results provide direct biochemical evidence for a signaling complex composed of a potassium channel and a protein tyrosine kinase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holmes, T C -- Fadool, D A -- Ren, R -- Levitan, I B -- F32 NS009952/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1996 Dec 20;274(5295):2089-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Volen Center for Complex Systems, Brandeis University, Waltham, MA 02254, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8953041" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cell Line ; Cloning, Molecular ; Humans ; Kv1.5 Potassium Channel ; Molecular Sequence Data ; Myocardium/chemistry ; Oncogene Protein pp60(v-src)/metabolism ; Patch-Clamp Techniques ; Phosphorylation ; Phosphotyrosine/metabolism ; Potassium Channels/chemistry/*metabolism ; *Potassium Channels, Voltage-Gated ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; Transfection ; src Homology Domains/*physiology ; src-Family Kinases/chemistry/*metabolism
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    Fraud strikes top genome lab (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-11-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marshall, E -- New York, N.Y. -- Science. 1996 Nov 8;274(5289):908-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8966566" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chromosome Inversion ; *Chromosomes, Human, Pair 16 ; Genetic Research ; History, 20th Century ; Human Genome Project ; Humans ; Leukemia, Myelomonocytic, Acute/*genetics ; Mice ; National Institutes of Health (U.S.) ; *Scientific Misconduct ; United States
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Activation of BTK by a phosphorylation mechanism initiated by SRC family kinases (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-09
    Description: Bruton's tyrosine kinase (BTK) is pivotal in B cell activation and development through its participation in the signaling pathways of multiple hematopoietic receptors. The mechanisms controlling BTK activation were studied here by examination of the biochemical consequences of an interaction between BTK and SRC family kinases. This interaction of BTK with SRC kinases transphosphorylated BTK on tyrosine at residue 551, which led to BTK activation. BTK then autophosphorylated at a second site. The same two sites were phosphorylated upon B cell antigen receptor cross-linking. The activated BTK was predominantly membrane-associated, which suggests that BTK integrates distinct receptor signals resulting in SRC kinase activation and BTK membrane targeting.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rawlings, D J -- Scharenberg, A M -- Park, H -- Wahl, M I -- Lin, S -- Kato, R M -- Fluckiger, A C -- Witte, O N -- Kinet, J P -- AR01912/AR/NIAMS NIH HHS/ -- AR36834/AR/NIAMS NIH HHS/ -- CA09120-20/CA/NCI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1996 Feb 9;271(5250):822-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Molecular Genetics, University of California, Los Angeles 90095-1662, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8629002" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; B-Lymphocytes/*enzymology ; Cell Line, Transformed ; Cell Membrane/enzymology ; Enzyme Activation ; Immunoglobulin M/immunology ; Lymphocyte Activation ; Mice ; Mutation ; Phosphopeptides/analysis ; Phosphorylation ; Phosphotyrosine/metabolism ; Protein-Tyrosine Kinases/chemistry/genetics/*metabolism ; Receptors, Antigen, B-Cell/metabolism ; Signal Transduction ; src-Family Kinases/*metabolism
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    Lord of the rings: GroES structure (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-01-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mayhew, M -- Hartl, F U -- New York, N.Y. -- Science. 1996 Jan 12;271(5246):161-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8539614" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Chaperonin 10/*chemistry/metabolism ; Chaperonin 60/metabolism ; Crystallography, X-Ray ; Mycobacterium leprae/*chemistry ; *Protein Conformation ; *Protein Folding ; Protein Structure, Secondary
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    A quasi-monoclonal mouse (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-06-14
    Description: As a model for studying the generation of antibody diversity, a gene-targeted mouse was produced that is hemizygous for a rearranged V(D)J segment at the immunoglobulin (Ig) heavy chain locus, the other allele being nonfunctional. The mouse also has no functional kappa light chain allele. The heavy chain, when paired with any lambda light chain, is specific for the hapten (4-hydroxy-3-nitrophenyl) acetyl (NP). The primary repertoire of this quasi-monoclonal mouse is monospecific, but somatic hypermutation and secondary rearrangements change the specificity of 20 percent of the antigen receptors on B cells. The serum concentrations of the Ig isotypes are similar to those in nontransgenic littermates, but less than half of the serum IgM binds to NP, and none of the other isotypes do. Thus, neither network interactions nor random activation of a small fraction of the B cell population can account for serum Ig concentrations.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cascalho, M -- Ma, A -- Lee, S -- Masat, L -- Wabl, M -- 1R01 GM37699/GM/NIGMS NIH HHS/ -- P60 AR20684/AR/NIAMS NIH HHS/ -- New York, N.Y. -- Science. 1996 Jun 14;272(5268):1649-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, University of California, San Francisco 94143-0670, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8658139" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal/*genetics/immunology ; *Antigens, CD ; Antigens, CD43 ; Antigens, CD45/immunology ; B-Lymphocytes/cytology/immunology ; Base Sequence ; Cell Line ; Cloning, Molecular ; Dna ; Flow Cytometry ; Gene Rearrangement, B-Lymphocyte, Heavy Chain ; Haptens/immunology ; Immunoglobulin Heavy Chains/*genetics/immunology ; Immunoglobulin Isotypes/genetics ; Immunoglobulin J-Chains/genetics ; Immunoglobulin Light Chains/genetics/immunology ; Immunoglobulin Variable Region/genetics ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Knockout/genetics/*immunology ; Molecular Sequence Data ; Nitrophenols/immunology ; Phenylacetates ; Recombinant Proteins/genetics/immunology ; Sialoglycoproteins/immunology
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    Diversity and pattern in the developing spinal cord (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-11-15
    Description: The generation of distinct neuronal cell types in appropriate numbers and at precise positions underlies the assembly of neural circuits that encode animal behavior. Despite the complexity of the vertebrate central nervous system, advances have been made in defining the principles that control the diversification and patterning of its component cells. A combination of molecular genetic, biochemical, and embryological assays has begun to reveal the identity and mechanism of action of molecules that induce and pattern neural tissue and the role of transcription factors in establishing generic and specific neuronal fates. Some of these advances are discussed here, focusing on the spinal cord as a model system for analyzing the molecular control of central nervous system development in vertebrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tanabe, Y -- Jessell, T M -- New York, N.Y. -- Science. 1996 Nov 15;274(5290):1115-23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Biochemistry and Molecular Biophysics, Center for Neurobiology and Behavior, Columbia University, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8895454" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Body Patterning ; Cell Differentiation ; Ectoderm/cytology/physiology ; *Embryonic Induction ; Gene Expression Regulation, Developmental ; Motor Neurons/cytology/physiology ; Neurons/*cytology/physiology ; Notochord/physiology ; Signal Transduction ; Spinal Cord/cytology/*embryology ; Transcription Factors/physiology
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    Requirement for BMP signaling in interdigital apoptosis and scale formation (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-05-03
    Description: Interdigital cell death leads to regression of soft tissue between embryonic digits in many vertebrates. Although the signals that regulate interdigital apoptosis are not known, BMPs--signaling molecules of the transforming growth factor-beta superfamily--are expressed interdigitally. A dominant negative type I BMP receptor (dnBMPR-IB) was used here to block BMP signaling. Expression of dnBMPR in chicken embryonic hind limbs greatly reduced interdigital apoptosis and resulted in webbed feet. In addition, scales were transformed into feathers. The similarity of the webbing to webbed duck feet led to studies that indicate that BMPs are not expressed in the duck interdigit. These results indicate BMP signaling actively mediates cell death in the embryonic limb.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zou, H -- Niswander, L -- New York, N.Y. -- Science. 1996 May 3;272(5262):738-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8614838" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Bone Morphogenetic Protein Receptors, Type I ; Bone Morphogenetic Proteins ; Chick Embryo ; Ducks ; Feathers/cytology/*embryology ; Foot/embryology ; Gene Expression ; Hindlimb/cytology/*embryology ; In Situ Hybridization ; Mesoderm/metabolism ; Mice ; Mutagenesis, Site-Directed ; Phenotype ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; Proteins/genetics/*physiology ; RNA/genetics/metabolism ; Receptors, Growth Factor/genetics/*metabolism ; *Signal Transduction ; Transfection
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    Does nature drive nurture? (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-08-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1996 Aug 2;273(5275):577-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8701307" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Female ; Genetics, Behavioral ; Maternal Behavior/*physiology ; Mice ; Mice, Knockout/genetics/*physiology ; Neurons/metabolism ; Preoptic Area/metabolism/physiology ; Proto-Oncogene Proteins c-fos/*genetics/physiology
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    Identification of scavenger receptor SR-BI as a high density lipoprotein receptor (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-01-26
    Description: High density lipoprotein (HDL) and low density lipoprotein (LDL) are cholesterol transport particles whose plasma concentrations are directly (LDL) and inversely (HDL) correlated with risk for atherosclerosis. LDL catabolism involves cellular uptake and degradation of the entire particle by a well-characterized receptor. HDL, in contrast, selectively delivers its cholesterol, but not protein, to cells by unknown receptors. Here it is shown that the class B scavenger receptor SR-BI is an HDL receptor. SR-BI binds HDL with high affinity, is expressed primarily in liver and nonplacental steroidogenic tissues, and mediates selective cholesterol uptake by a mechanism distinct from the classic LDL receptor pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Acton, S -- Rigotti, A -- Landschulz, K T -- Xu, S -- Hobbs, H H -- Krieger, M -- HL09047/HL/NHLBI NIH HHS/ -- HL41484/HL/NHLBI NIH HHS/ -- HL52212/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1996 Jan 26;271(5248):518-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, Cambridge 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8560269" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Glands/metabolism ; Animals ; Antigens, CD36/genetics/*metabolism ; CHO Cells ; *Carrier Proteins ; Cholesterol/metabolism ; Cholesterol Esters/*metabolism ; Cricetinae ; Female ; Fluorescent Dyes/metabolism ; Lipoproteins, HDL/*metabolism ; Liver/metabolism ; *Membrane Proteins ; Mice ; Molecular Sequence Data ; Ovary/metabolism ; *RNA-Binding Proteins ; *Receptors, Immunologic ; Receptors, LDL/metabolism ; Receptors, Lipoprotein/*metabolism ; Receptors, Scavenger ; Scavenger Receptors, Class B ; Thiazines/metabolism ; Transfection
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    Regulation of myosin phosphatase by Rho and Rho-associated kinase (Rho-kinase) (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-07-12
    Description: The small guanosine triphosphatase Rho is implicated in myosin light chain (MLC) phosphorylation, which results in contraction of smooth muscle and interaction of actin and myosin in nonmuscle cells. The guanosine triphosphate (GTP)-bound, active form of RhoA (GTP.RhoA) specifically interacted with the myosin-binding subunit (MBS) of myosin phosphatase, which regulates the extent of phosphorylation of MLC. Rho-associated kinase (Rho-kinase), which is activated by GTP.RhoA, phosphorylated MBS and consequently inactivated myosin phosphatase. Overexpression of RhoA or activated RhoA in NIH 3T3 cells increased phosphorylation of MBS and MLC. Thus, Rho appears to inhibit myosin phosphatase through the action of Rho-kinase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kimura, K -- Ito, M -- Amano, M -- Chihara, K -- Fukata, Y -- Nakafuku, M -- Yamamori, B -- Feng, J -- Nakano, T -- Okawa, K -- Iwamatsu, A -- Kaibuchi, K -- New York, N.Y. -- Science. 1996 Jul 12;273(5272):245-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Signal Transduction, Nara Institute of Science and Technology, Ikoma 630-01, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8662509" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Actins/metabolism ; Amino Acid Sequence ; Animals ; Cattle ; GTP Phosphohydrolases/*metabolism ; GTP-Binding Proteins/*metabolism ; Intracellular Signaling Peptides and Proteins ; Isopropyl Thiogalactoside/pharmacology ; Mice ; Molecular Sequence Data ; Muscle Contraction ; Muscle, Smooth/physiology ; Myosin Light Chains/metabolism ; Myosin-Light-Chain Phosphatase ; Oxazoles/pharmacology ; Phosphoprotein Phosphatases/*antagonists & inhibitors/metabolism ; Phosphorylation ; Protein-Serine-Threonine Kinases/*metabolism ; rho-Associated Kinases ; rhoA GTP-Binding Protein
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    Identification of a committed precursor for the mast cell lineage (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-09
    Description: Mast cells originate from hematopoietic stem cells, but the mast cell-committed precursor has not been identified. In the study presented here, a cell population in murine fetal blood that fulfills the criteria of progenitor mastocytes was identified. It is defined by the phenotype Thy-1loc-Kithi, contains cytoplasmic granules, and expresses RNAs encoding mast cell-associated proteases but lacks expression of the high-affinity immunoglobulin E receptor. Thy-1loc-Kithi cells generated functionally competent mast cells at high frequencies in vitro but lacked developmental potential for other hematopoietic lineages. When transferred intraperitoneally, this population reconstituted the peritoneal mast cell compartment of genetically mast cell-deficient W/Wv mice to wild-type levels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rodewald, H R -- Dessing, M -- Dvorak, A M -- Galli, S J -- AI-33372/AI/NIAID NIH HHS/ -- AI/CA-23990/AI/NIAID NIH HHS/ -- CA/AI-72074/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1996 Feb 9;271(5250):818-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Basel Institute for Immunology, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8629001" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Thy-1/analysis ; Base Sequence ; Cell Lineage ; Cell Transplantation ; Cells, Cultured ; Cytoplasmic Granules/ultrastructure ; Endopeptidases/genetics/metabolism ; Fetal Blood ; Hematopoietic Stem Cells/*cytology/physiology/ultrastructure ; Immunophenotyping ; Interleukin-3/pharmacology ; Mast Cells/*cytology/physiology/ultrastructure ; Mice ; Molecular Sequence Data ; Peritoneal Cavity/cytology ; Proto-Oncogene Proteins c-kit/analysis ; RNA, Messenger/genetics/metabolism ; Receptors, IgE/analysis/genetics ; Stem Cell Factor/pharmacology
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    Visualization of slow axonal transport in vivo (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-08-09
    Description: In axons, cytoskeletal constituents move by slow transport. However, it remains controversial whether axonal neurofilaments are dynamic structures in which only subunits are transported or whether filaments assemble in the proximal axon and are transported intact as polymers to the axon terminus. To investigate the form neurofilament proteins take during transport, neurons of transgenic mice lacking axonal neurofilaments were infected with a recombinant adenoviral vector encoding epitope-tagged neurofilament M. Confocal and electron microscopy revealed that the virally encoded neurofilament M was transported in unpolymerized form along axonal microtubules. Thus, neurofilament proteins are probably transported as subunits or small oligomers along microtubules, which are major routes for slow axonal transport.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Terada, S -- Nakata, T -- Peterson, A C -- Hirokawa, N -- New York, N.Y. -- Science. 1996 Aug 9;273(5276):784-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Brain Research, Faculty of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8670416" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviridae/genetics ; Animals ; *Axonal Transport ; Axons/chemistry/*metabolism/ultrastructure ; Ganglia, Spinal/virology ; Genetic Vectors ; Mice ; Mice, Transgenic ; Microscopy, Confocal ; Microscopy, Immunoelectron ; Microtubules/*metabolism ; Neurofilament Proteins/analysis/*metabolism ; Proto-Oncogene Proteins c-myc/genetics/metabolism ; Recombinant Proteins/metabolism ; Sciatic Nerve/chemistry/ultrastructure
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    Regulation of an early developmental checkpoint in the B cell pathway by Ig beta (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-04-19
    Description: Many of the cell fate decisions in precursor B cells and more mature B cells are controlled by membrane immunoglobulin (Ig)M heavy chain (mu) and the Ig alpha-Ig beta signal transducers. The role of Ig beta in regulating early B cell development was examined in mice that lack Ig beta (Ig beta-/-). These mice had a complete block in B cell development at the immature CD43+B220+ stage. Immunoglobulin heavy chain diversity (DH) and joining (JH) segments rearranged, but variable (VH) to DJH recombination and immunoglobulin messenger RNA expression were compromised. These experiments define an unexpected, early requirement for Ig(beta) to produce B cells that can complete VDJH recombination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gong, S -- Nussenzweig, M C -- New York, N.Y. -- Science. 1996 Apr 19;272(5260):411-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Rockefeller University, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8602530" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/genetics/*physiology ; Antigens, CD79 ; B-Lymphocytes/cytology/*immunology ; Gene Expression ; *Gene Rearrangement, B-Lymphocyte, Heavy Chain ; Gene Targeting ; Genes, Immunoglobulin ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Joining Region/genetics ; Immunoglobulin Light Chains/*genetics ; Immunoglobulin Variable Region/genetics ; Immunoglobulin mu-Chains/biosynthesis/genetics/physiology ; Lymph Nodes ; Mice ; Mice, Inbred C57BL ; Mutation ; RNA, Messenger/genetics ; Receptors, Antigen, B-Cell/physiology ; *Recombination, Genetic ; Signal Transduction
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    Cholesterol modification of hedgehog signaling proteins in animal development (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-10-11
    Description: Hedgehog (Hh) proteins comprise a family of secreted signaling molecules essential for patterning a variety of structures in animal embryogenesis. During biosynthesis, Hh undergoes an autocleavage reaction, mediated by its carboxyl-terminal domain, that produces a lipid-modified amino-terminal fragment responsible for all known Hh signaling activity. Here it is reported that cholesterol is the lipophilic moiety covalently attached to the amino-terminal signaling domain during autoprocessing and that the carboxyl-terminal domain acts as an intramolecular cholesterol transferase. This use of cholesterol to modify embryonic signaling proteins may account for some of the effects of perturbed cholesterol biosynthesis on animal development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Porter, J A -- Young, K E -- Beachy, P A -- New York, N.Y. -- Science. 1996 Oct 11;274(5285):255-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular Biology and Genetics, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8824192" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cells, Cultured ; Cholesterol/*metabolism ; Dithiothreitol/pharmacology ; Drosophila ; *Drosophila Proteins ; *Embryonic Induction ; Embryonic and Fetal Development ; Hedgehog Proteins ; Humans ; Protein Processing, Post-Translational ; Proteins/genetics/*metabolism ; Signal Transduction ; *Trans-Activators
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    Selective activation of calcium permeability by aspartate in Purkinje cells (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-08-23
    Description: Glutamate and aspartate are endogenous excitatory amino acid neurotransmitters widely distributed in the mammalian central nervous system. Aspartate was shown to induce a large membrane current sensitive to N-methyl-D-aspartate (NMDA) and non-NMDA receptor antagonists in Purkinje cells from mice lacking functional NMDA receptors (NR1(-/-)). This response was accompanied by high permeability to calcium. In contrast, no current was induced by aspartate in hippocampal neurons and cerebellar granule cells from NR1(-/-) mice. Several other glutamate receptor agonists failed to evoke this response. Thus, in Purkinje cells, aspartate activates a distinct response capable of contributing to synaptic plasticity through calcium permeability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yuzaki, M -- Forrest, D -- Curran, T -- Connor, J A -- P30CA21765/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1996 Aug 23;273(5278):1112-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Neurobiology, St. Jude Children's Research Hospital, 332 North Lauderdale, Memphis, TN 38105-2794, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8688099" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aspartic Acid/*pharmacology ; Calcium/*metabolism ; Cerebellum/cytology/metabolism ; Excitatory Amino Acid Agonists/pharmacology ; Excitatory Amino Acid Antagonists/pharmacology ; Glutamic Acid/pharmacology ; Hippocampus/cytology/metabolism ; Homocysteine/analogs & derivatives/pharmacology ; Magnesium/pharmacology ; Mice ; Mice, Knockout ; N-Methylaspartate/pharmacology ; Neuronal Plasticity ; Neurons/drug effects/metabolism ; Patch-Clamp Techniques ; Permeability ; Purkinje Cells/drug effects/*metabolism ; Receptors, Amino Acid/drug effects/*metabolism ; Receptors, N-Methyl-D-Aspartate/agonists/antagonists & inhibitors/physiology
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    Lymphocyte apoptosis: mediation by increased type 3 inositol 1,4,5-trisphosphate receptor (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-07-26
    Description: B and T lymphocytes undergoing apoptosis in response to anti-immunoglobulin M antibodies and dexamethasone, respectively, were found to have increased amounts of messenger RNA for the inositol 1,4,5-trisphosphate receptor (IP3R) and increased amounts of IP3R protein. Immunohistochemical analysis revealed that the augmented receptor population was localized to the plasma membrane. Type 3 IP3R (IP3R3) was selectively increased during apoptosis, with no enhancement of type 1 IP3R (IP3R1). Expression of IP3R3 antisense constructs in S49 T cells blocked dexamethasone-induced apoptosis, whereas IP3R3 sense, IP3R1 sense, or IP3R1 antisense control constructs did not block cell death. Thus, the increases in IP3R3 may be causally related to apoptosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Khan, A A -- Soloski, M J -- Sharp, A H -- Schilling, G -- Sabatini, D M -- Li, S H -- Ross, C A -- Snyder, S H -- AI-20922/AI/NIAID NIH HHS/ -- AI-37934/AI/NIAID NIH HHS/ -- MH43040/MH/NIMH NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1996 Jul 26;273(5274):503-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8662540" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Apoptosis ; B-Lymphocytes/*cytology/metabolism ; Base Sequence ; Calcium/metabolism ; Calcium Channels/genetics/immunology/*metabolism ; Cell Line ; Cell Membrane/metabolism ; Cells, Cultured ; DNA, Antisense ; Dexamethasone/pharmacology ; Immunoblotting ; Inositol 1,4,5-Trisphosphate/*metabolism ; Inositol 1,4,5-Trisphosphate Receptors ; Mice ; Molecular Sequence Data ; Receptors, Cytoplasmic and Nuclear/genetics/immunology/*metabolism ; T-Lymphocytes/*cytology/metabolism ; Transfection ; Tumor Cells, Cultured
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    A chloride channel model? (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-11-01
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, C -- New York, N.Y. -- Science. 1996 Nov 1;274(5288):738.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Biochemistry, Braindeis University, Waltham, MA 02254, USA. cmiller@binah.cc.brandeis.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8966555" target="_blank"〉PubMed〈/a〉
    Keywords: Chloride Channels/*chemistry ; Chlorides/chemistry ; Crystallography, X-Ray ; Extracellular Matrix Proteins/*chemistry ; Glutamine/chemistry ; Glycoproteins/*chemistry ; Matrilin Proteins ; *Protein Conformation ; *Protein Structure, Secondary
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    Structure of the p53 tumor suppressor bound to the ankyrin and SH3 domains of 53BP2 (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-11-08
    Description: Mutations in the p53 tumor suppressor are among the most frequently observed genetic alterations in human cancer and map to the 200-amino acid core domain of the protein. The core domain contains the sequence-specific DNA binding activity and the in vitro 53BP2 protein binding activity of p53. The crystal structure of the p53 core domain bound to the 53BP2 protein, which contains an SH3 (Src homology 3) domain and four ankyrin repeats, revealed that (i) the SH3 domain binds the L3 loop of p53 in a manner distinct from that of previously characterized SH3-polyproline peptide complexes, and (ii) an ankyrin repeat, which forms an L-shaped structure consisting of a beta hairpin and two alpha helices, binds the L2 loop of p53. The structure of the complex shows that the 53BP2 binding site on the p53 core domain consists of evolutionarily conserved regions that are frequently mutated in cancer and that it overlaps the site of DNA binding. The six most frequently observed p53 mutations disrupt 53BP2 binding in vitro. The structure provides evidence that the 53BP2-p53 complex forms in vivo and may have a critical role in the p53 pathway of tumor suppression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gorina, S -- Pavletich, N P -- CA65698/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1996 Nov 8;274(5289):1001-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cellular Biochemistry and Biophysics Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8875926" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Ankyrins/*chemistry ; Apoptosis Regulatory Proteins ; Binding Sites ; Carrier Proteins/*chemistry/metabolism ; Crystallography, X-Ray ; DNA/metabolism ; Humans ; Hydrogen Bonding ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Neoplasms/genetics ; Protein Binding ; *Protein Conformation ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Recombinant Fusion Proteins/chemistry/metabolism ; Tumor Suppressor Protein p53/*chemistry/genetics/metabolism ; *src Homology Domains
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    A mouse model of familial hypertrophic cardiomyopathy (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-05-03
    Description: A mouse model of familial hypertrophic cardiomyopathy (FHC) was generated by the introduction of an Arg 403 --〉 Gln mutation into the alpha cardiac myosin heavy chain (MHC) gene. Homozygous alpha MHC 403/403 mice died 7 days after birth, and sedentary heterozygous alpha MHC 403/+ mice survived for 1 year. Cardiac histopathology and dysfunction in the alpha MHC 403/+ mice resembled human FHC. Cardiac dysfunction preceded histopathologic changes, and myocyte disarray, hypertrophy, and fibrosis increased with age. Young male alpha MHC 403/+ mice showed more evidence of disease than did their female counterparts. Preliminary results suggested that exercise capacity may have been compromised in the alpha MHC 403/+ mice. This mouse model may help to define the natural history of FHC.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Geisterfer-Lowrance, A A -- Christe, M -- Conner, D A -- Ingwall, J S -- Schoen, F J -- Seidman, C E -- Seidman, J G -- New York, N.Y. -- Science. 1996 May 3;272(5262):731-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8614836" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cardiac Output ; Cardiomyopathy, Hypertrophic/*genetics/pathology/physiopathology ; *Disease Models, Animal ; Female ; Gene Transfer Techniques ; Heart/*physiopathology ; Heterozygote ; Homozygote ; Humans ; Male ; Mice ; Mice, Mutant Strains ; Molecular Sequence Data ; Mutation ; Myocardium/chemistry/*pathology ; Myosin Heavy Chains/*genetics ; Physical Exertion ; Sex Characteristics ; Ventricular Function, Left
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    Requirement of an ICE-like protease for induction of apoptosis and ceramide generation by REAPER (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-09
    Description: Genetic studies indicated that the Drosophila melanogaster protein REAPER (RPR) controls apoptosis during embryo development. Induction of RPR expression in Drosophila Schneider cells rapidly stimulated apoptosis. RPR-mediated apoptosis was blocked by N-benzyloxycarbonyl-Val-Ala-Asp-fluoromethylketone (Z-VAD-fmk), which suggests that an interleukin-1 beta converting enzyme (ICE)-like protease is required for RPR function. RPR-induced apoptosis was associated with increased ceramide production that was also blocked by Z-VAD-fmk, which suggests that ceramide generation requires an ICE-like protease as well. Thus, the intracellular RPR protein uses cell death signaling pathways similar to those used by the vertebrate transmembrane receptors Fas (CD95) and tumor necrosis factor receptor type 1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pronk, G J -- Ramer, K -- Amiri, P -- Williams, L T -- New York, N.Y. -- Science. 1996 Feb 9;271(5250):808-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chiron Corporation, Emeryville, CA 94608, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8628997" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Chloromethyl Ketones/pharmacology ; Amino Acid Sequence ; Animals ; *Apoptosis/drug effects ; Caspase 1 ; Cell Line ; Ceramides/*metabolism/pharmacology ; Copper/pharmacology ; Copper Sulfate ; Cysteine Endopeptidases/*metabolism ; *Drosophila Proteins ; Drosophila melanogaster/*cytology/embryology/genetics/metabolism ; Enzyme Activation ; Gene Expression ; Molecular Sequence Data ; Peptides/genetics/*physiology ; Protease Inhibitors/pharmacology ; Signal Transduction ; Transfection
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    PKD2, a gene for polycystic kidney disease that encodes an integral membrane protein (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-05-31
    Description: A second gene for autosomal dominant polycystic kidney disease was identified by positional cloning. Nonsense mutations in this gene (PKD2) segregated with the disease in three PKD2 families. The predicted 968-amino acid sequence of the PKD2 gene product has six transmembrane spans with intracellular amino- and carboxyl-termini. The PKD2 protein has amino acid similarity with PKD1, the Caenorhabditis elegans homolog of PKD1, and the family of voltage-activated calcium (and sodium) channels, and it contains a potential calcium-binding domain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mochizuki, T -- Wu, G -- Hayashi, T -- Xenophontos, S L -- Veldhuisen, B -- Saris, J J -- Reynolds, D M -- Cai, Y -- Gabow, P A -- Pierides, A -- Kimberling, W J -- Breuning, M H -- Deltas, C C -- Peters, D J -- Somlo, S -- DK02015/DK/NIDDK NIH HHS/ -- DK48383/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1996 May 31;272(5266):1339-42.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Renal Division, Department of Medicine and Molecular Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8650545" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Caenorhabditis elegans/chemistry/genetics ; Calcium Channels/chemistry/genetics ; Chromosome Mapping ; Chromosomes, Human, Pair 4 ; Cloning, Molecular ; Consensus Sequence ; Crystallography, X-Ray ; Female ; Glycosylation ; Humans ; Male ; Membrane Proteins/chemistry/*genetics/physiology ; Molecular Sequence Data ; Mutation ; Pedigree ; Phenotype ; Polycystic Kidney, Autosomal Dominant/*genetics ; Polymorphism, Single-Stranded Conformational ; Proteins/chemistry/genetics ; Sodium Channels/chemistry/genetics ; TRPP Cation Channels
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    Form follows function when plants harvest light (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-06-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Moffat, A S -- New York, N.Y. -- Science. 1996 Jun 21;272(5269):1743-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8650571" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carotenoids/*chemistry/metabolism ; Crystallography, X-Ray ; Dinoflagellida/*chemistry/metabolism ; Light ; Photosynthesis ; *Protein Conformation ; Protozoan Proteins/*chemistry/metabolism
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    Hedgehog's patterning call is patched through, smoothly (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-11-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roush, W -- New York, N.Y. -- Science. 1996 Nov 22;274(5291):1304-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8966601" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Body Patterning ; Carcinoma, Basal Cell/genetics/therapy ; Hedgehog Proteins ; Humans ; Membrane Proteins/genetics/*metabolism ; Mutation ; Proteins/*metabolism ; Receptors, Cell Surface/*metabolism/physiology ; *Receptors, G-Protein-Coupled ; Signal Transduction ; Skin Neoplasms/genetics/therapy ; *Trans-Activators
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    Liver failure and defective hepatocyte regeneration in interleukin-6-deficient mice (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-11-22
    Description: Liver regeneration stimulated by a loss of liver mass leads to hepatocyte and nonparenchymal cell proliferation and rapid restoration of liver parenchyma. Mice with targeted disruption of the interleukin-6 (IL-6) gene had impaired liver regeneration characterized by liver necrosis and failure. There was a blunted DNA synthetic response in hepatocytes of these mice but not in nonparenchymal liver cells. Furthermore, there were discrete G1 phase (prereplicative stage in the cell cycle) abnormalities including absence of STAT3 (signal transducer and activator of transcription protein 3) activation and depressed AP-1, Myc, and cyclin D1 expression. Treatment of IL-6-deficient mice with a single preoperative dose of IL-6 returned STAT3 binding, gene expression, and hepatocyte proliferation to near normal and prevented liver damage, establishing that IL-6 is a critical component of the regenerative response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cressman, D E -- Greenbaum, L E -- DeAngelis, R A -- Ciliberto, G -- Furth, E E -- Poli, V -- Taub, R -- DK44237/DK/NIDDK NIH HHS/ -- DK49210/DK/NIDDK NIH HHS/ -- DK49629/DK/NIDDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1996 Nov 22;274(5291):1379-83.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics and Medicine, University of Pennsylvania School of Medicine, 705a Stellar-Chance, 422 Curie Boulevard, Philadelphia, PA 19104-6145, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8910279" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cyclin D1 ; Cyclins/biosynthesis ; DNA/biosynthesis/metabolism ; DNA-Binding Proteins/metabolism ; G1 Phase ; Gene Expression Regulation ; Gene Targeting ; Genes, Immediate-Early ; Hepatectomy ; Interleukin-6/deficiency/genetics/pharmacology/*physiology ; Liver/*cytology/metabolism/pathology ; Liver Failure/*etiology/pathology ; *Liver Regeneration ; Mice ; Mice, Inbred C57BL ; Mitosis ; Mutation ; Necrosis ; Oncogene Proteins/biosynthesis ; Proto-Oncogene Proteins c-myc/biosynthesis ; STAT3 Transcription Factor ; Trans-Activators/metabolism ; Transcription Factor AP-1/biosynthesis
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    A neural tetraspanin, encoded by late bloomer, that facilitates synapse formation (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-03-29
    Description: Upon contacting its postsynaptic target, a neuronal growth cone transforms into a presynaptic terminal. A membrane component on the growth cone that facilitates synapse formation was identified by means of a complementary DNA-based screen followed by genetic analysis. The late bloomer (lbl) gene in Drosophila encodes a member of the tetraspanin family of cell surface proteins. LBL protein is transiently expressed on motor axons, growth cones, and terminal arbors. In lbl mutant embryos, the growth cone of the RP3 motoneuron contacts its target muscles, but synapse formation is delayed and neighboring motoneurons display an increase in ectopic sprouting.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kopczynski, C C -- Davis, G W -- Goodman, C S -- New York, N.Y. -- Science. 1996 Mar 29;271(5257):1867-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of California, Berkeley 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8596956" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Axons/metabolism/ultrastructure ; Cloning, Molecular ; Drosophila/embryology/genetics/physiology ; *Drosophila Proteins ; *Genes, Insect ; Membrane Proteins/chemistry/genetics/*physiology ; Molecular Sequence Data ; Motor Neurons/cytology/metabolism/*physiology ; Muscles/innervation ; Mutation ; Nerve Tissue Proteins/chemistry/genetics/*physiology ; Neuromuscular Junction/*physiology ; Presynaptic Terminals/*physiology/ultrastructure ; Signal Transduction
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    Role of lymphotoxin and the type I TNF receptor in the formation of germinal centers (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-03-01
    Description: In mice deficient in either lymphotoxin-alpha (LT-alpha) or the type I tumor necrosis factor (TNF) receptor, but not the type II TNF receptor, germinal centers failed to develop in peripheral lymphoid organs. Germinal center formation was restored in LT-alpha-deficient mice by transplantation of normal bone marrow, indicating that the LT-alpha-expressing cells required to establish this lymphoid structure are derived from bone marrow.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Matsumoto, M -- Mariathasan, S -- Nahm, M H -- Baranyay, F -- Peschon, J J -- Chaplin, D D -- New York, N.Y. -- Science. 1996 Mar 1;271(5253):1289-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Immunology and Howard Hughes Medical Institute, Washington University School of Medicine, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8638112" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Cells ; Bone Marrow Transplantation ; Gene Targeting ; Germinal Center/cytology/immunology/*physiology ; Immunization ; Lymphotoxin-alpha/genetics/*physiology ; Mice ; Receptors, Tumor Necrosis Factor/genetics/*physiology ; Spleen/anatomy & histology/*immunology
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    The whole structure of the 13-subunit oxidized cytochrome c oxidase at 2.8 A (1996)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 1996-05-24
    Description: The crystal structure of bovine heart cytochrome c oxidase at 2.8 A resolution with an R value of 19.9 percent reveals 13 subunits, each different from the other, five phosphatidyl ethanolamines, three phosphatidyl glycerols and two cholates, two hemes A, and three copper, one magnesium, and one zinc. Of 3606 amino acid residues in the dimer, 3560 have been converged to a reasonable structure by refinement. A hydrogen-bonded system, including a propionate of a heme A (heme a), part of peptide backbone, and an imidazole ligand of CuA, could provide an electron transfer pathway between CuA and heme a. Two possible proton pathways for pumping, each spanning from the matrix to the cytosolic surfaces, were identified, including hydrogen bonds, internal cavities likely to contain water molecules, and structures that could form hydrogen bonds with small possible conformational change of amino acid side chains. Possible channels for chemical protons to produce H2O, for removing the produced water, and for O2, respectively, were identified.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tsukihara, T -- Aoyama, H -- Yamashita, E -- Tomizaki, T -- Yamaguchi, H -- Shinzawa-Itoh, K -- Nakashima, R -- Yaono, R -- Yoshikawa, S -- New York, N.Y. -- Science. 1996 May 24;272(5265):1136-44.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Protein Research, Osaka University, Suita, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8638158" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cattle ; Cell Nucleus/genetics ; Copper/analysis ; Crystallography, X-Ray ; Electron Transport ; Electron Transport Complex IV/*chemistry/genetics/metabolism ; Heme/analogs & derivatives/analysis ; Hydrogen Bonding ; Iron/analysis ; Membrane Proteins/chemistry ; Mitochondria, Heart/genetics ; Models, Molecular ; Molecular Sequence Data ; Molecular Weight ; Myocardium/enzymology ; Nucleotides/metabolism ; Oxidation-Reduction ; Oxygen/metabolism ; Phospholipids/analysis ; *Protein Conformation ; Protein Structure, Secondary ; Proton Pumps ; Water/metabolism
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    Guiding neurons to the cortex (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-11-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1996 Nov 15;274(5290):1100-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8966585" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain/abnormalities/embryology ; Brain Diseases/genetics ; Cell Adhesion Molecules, Neuronal/*genetics/physiology ; Cell Movement ; Cerebral Cortex/cytology/*embryology ; Cloning, Molecular ; Cyclin-Dependent Kinase 5 ; *Cyclin-Dependent Kinases ; Extracellular Matrix Proteins/*genetics/physiology ; Female ; Humans ; Intellectual Disability/genetics ; Male ; Mice ; Mice, Neurologic Mutants ; Nerve Tissue Proteins/genetics/physiology ; Neurons/*physiology ; Protein-Serine-Threonine Kinases/physiology ; Serine Endopeptidases
    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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  • 83
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    DPC4, a candidate tumor suppressor gene at human chromosome 18q21.1 (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-01-19
    Description: About 90 percent of human pancreatic carcinomas show allelic loss at chromosome 18q. To identify candidate tumor suppressor genes on 18q, a panel of pancreatic carcinomas were analyzed for convergent sites of homozygous deletion. Twenty-five of 84 tumors had homozygous deletions at 18q21.1, a site that excludes DCC (a candidate suppressor gene for colorectal cancer) and includes DPC4, a gene similar in sequence to a Drosophila melanogaster gene (Mad) implicated in a transforming growth factor-beta (TGF-beta)-like signaling pathway. Potentially inactivating mutations in DPC4 were identified in six of 27 pancreatic carcinomas that did not have homozygous deletions at 18q21.1. These results identify DPC4 as a candidate tumor suppressor gene whose inactivation may play a role in pancreatic and possibly other human cancers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hahn, S A -- Schutte, M -- Hoque, A T -- Moskaluk, C A -- da Costa, L T -- Rozenblum, E -- Weinstein, C L -- Fischer, A -- Yeo, C J -- Hruban, R H -- Kern, S E -- CA62924/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1996 Jan 19;271(5247):350-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8553070" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Amino Acid Sequence ; Animals ; Base Sequence ; Cell Division ; Chromosome Mapping ; *Chromosomes, Human, Pair 18 ; *DNA-Binding Proteins ; Gene Deletion ; Gene Expression ; *Genes, Tumor Suppressor ; Genetic Markers ; Humans ; Mice ; Molecular Sequence Data ; Mutation ; Neoplasm Transplantation ; Pancreatic Neoplasms/*genetics/pathology ; Proteins/chemistry/*genetics/physiology ; Signal Transduction ; Smad4 Protein ; *Trans-Activators ; Transforming Growth Factor beta/physiology ; Transplantation, Heterologous ; Tumor Cells, Cultured
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 84
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    Lipid A: target for antibacterial drugs (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-11-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vaara, M -- New York, N.Y. -- Science. 1996 Nov 8;274(5289):939-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bacteriology, University of Helsinki, Finland. martti.vaara@helsinki.fi〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8966574" target="_blank"〉PubMed〈/a〉
    Keywords: Amidohydrolases/*antagonists & inhibitors/genetics ; Animals ; Anti-Bacterial Agents/*pharmacology ; Escherichia coli/drug effects/genetics ; Escherichia coli Infections/drug therapy/microbiology ; Gram-Negative Bacteria/*drug effects ; Hydroxamic Acids/*pharmacology ; Lipid A/*biosynthesis ; Mice ; Microbial Sensitivity Tests
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 85
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    Mutant mice and worms help solve mysteries of olfaction (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-10-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1996 Oct 25;274(5287):500-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8928002" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Caenorhabditis elegans/genetics/physiology ; Cyclic AMP/*physiology ; Inositol Phosphates/physiology ; Ion Channels/genetics/*physiology ; Mice ; Mice, Knockout ; Mutation ; Neurons, Afferent/physiology ; Odors ; Olfactory Receptor Neurons/*physiology ; Sensation/*physiology ; Sexual Behavior, Animal ; Signal Transduction ; Smell/*physiology
    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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  • 86
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    Genetic clues to Alzheimer's disease (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-01-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dewji, N N -- Singer, S J -- New York, N.Y. -- Science. 1996 Jan 12;271(5246):159-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Medicine, University of California at San Diego, La Jolla 92093-0322, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8539612" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*genetics/metabolism ; Amyloid beta-Peptides/biosynthesis ; Amyloid beta-Protein Precursor/*genetics/metabolism ; Animals ; Brain/metabolism ; Caenorhabditis elegans/growth & development ; *Caenorhabditis elegans Proteins ; Drosophila/genetics/growth & development ; *Drosophila Proteins ; Eye Proteins/metabolism ; Female ; Helminth Proteins/genetics/metabolism ; Humans ; Membrane Glycoproteins/metabolism ; Membrane Proteins/*genetics/metabolism ; Mutation ; Neurons/metabolism ; Photoreceptor Cells, Invertebrate/growth & development/metabolism ; Presenilin-1 ; Presenilin-2 ; *Receptor Protein-Tyrosine Kinases ; Receptors, Notch ; *Receptors, Peptide ; Signal Transduction ; Vulva/growth & development/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 87
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    Fetal immune response (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-08-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sarfati, M -- Delespesse, G -- New York, N.Y. -- Science. 1996 Aug 9;273(5276):722-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8701318" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn/immunology ; Female ; Fetal Blood/immunology ; Fetus/*immunology ; Humans ; Immunoglobulins/blood ; Infant, Newborn/*immunology ; Mice ; Pregnancy ; Tetanus Toxoid/*immunology ; Th2 Cells/*immunology ; Vaccination
    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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  • 88
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    Nonselective and G betagamma-insensitive weaver K+ channels (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-06-28
    Description: Homozygous weaver mice are profoundly ataxic because of the loss of granule cell neurons during cerebellar development. This granule cell loss appears to be caused by a genetic defect in the pore region (Gly156--〉Ser) of the heterotrimeric guanine nucleotide-binding protein (G protein)-gated inwardly rectifying potassium (K+) channel subunit (GIRK2). A related subunit, GIRK1, associates with GIRK2 to constitute a neuronal G protein-gated inward rectifier K+ channel. The weaver allele of the GIRK2 subunit (wvGIRK2) caused loss of K+ selectivity when expressed either as wvGIRK2 homomultimers or as GIRK1-wvGIRK2 heteromultimers. The mutation also let to loss of sensitivity to G protein betagamma dimers. Expression of wvGIRK2 subunits let to increased cell death, presumably as a result of basal nonselective channel opening.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Navarro, B -- Kennedy, M E -- Velimirovic, B -- Bhat, D -- Peterson, A S -- Clapham, D E -- New York, N.Y. -- Science. 1996 Jun 28;272(5270):1950-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Mayo Foundation, Rochester, Minnesota 55905, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8658170" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antisense Elements (Genetics) ; CHO Cells ; Cell Death ; Cell Line ; Cerebellum/cytology/*metabolism ; Cricetinae ; G Protein-Coupled Inwardly-Rectifying Potassium Channels ; GTP-Binding Proteins/*physiology ; Membrane Potentials ; Mice ; Mice, Neurologic Mutants ; Molecular Sequence Data ; Neurons/cytology/metabolism ; Oocytes/cytology ; Patch-Clamp Techniques ; Point Mutation ; Potassium Channels/genetics/*metabolism ; *Potassium Channels, Inwardly Rectifying ; Transfection
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 89
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    Obesity: leptin receptor weighs in (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-01-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1996 Jan 5;271(5245):29.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8539591" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood-Brain Barrier ; *Brain Chemistry ; Carrier Proteins/*genetics/isolation & purification/metabolism ; Choroid Plexus/metabolism ; Humans ; Leptin ; Mice ; Obesity/drug therapy/genetics/metabolism ; Proteins/*metabolism ; *Receptors, Cell Surface ; Receptors, Leptin
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 90
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    Regulation of RAD53 by the ATM-like kinases MEC1 and TEL1 in yeast cell cycle checkpoint pathways (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-01-19
    Description: Mutants of the Saccharomyces cerevisiae ataxia telangiectasia mutated (ATM) homolog MEC1/SAD3/ESR1 were identified that could live only if the RAD53/SAD1 checkpoint kinase was overproduced. MEC1 and a structurally related gene, TEL1, have overlapping functions in response to DNA damage and replication blocks that in mutants can be provided by overproduction of RAD53. Both MEC1 and TEL1 were found to control phosphorylation of Rad53p in response to DNA damage. These results indicate that RAD53 is a signal transducer in the DNA damage and replication checkpoint pathways and functions downstream of two members of the ATM lipid kinase family. Because several members of this pathway are conserved among eukaryotes, it is likely that a RAD53-related kinase will function downstream of the human ATM gene product and play an important role in the mammalian response to DNA damage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sanchez, Y -- Desany, B A -- Jones, W J -- Liu, Q -- Wang, B -- Elledge, S J -- DK07696/DK/NIDDK NIH HHS/ -- GM44664/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1996 Jan 19;271(5247):357-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Verna and Mars McLean Department of Biochemistry, Department of Molecular and Human Genetics, Howard Hughes Medical Institute, Baylor College of Medicine, Houston, TX 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8553072" target="_blank"〉PubMed〈/a〉
    Keywords: Ataxia Telangiectasia Mutated Proteins ; Base Sequence ; *Cell Cycle ; *Cell Cycle Proteins ; Checkpoint Kinase 2 ; *DNA Damage ; DNA Replication ; DNA-Binding Proteins ; Fungal Proteins/*genetics/metabolism ; Gene Expression Regulation, Fungal ; *Genes, Fungal ; Intracellular Signaling Peptides and Proteins ; Molecular Sequence Data ; Mutation ; Phosphorylation ; Protein Kinases/*genetics/metabolism ; *Protein-Serine-Threonine Kinases ; Proteins/genetics/metabolism ; Saccharomyces cerevisiae/cytology/*genetics/metabolism ; *Saccharomyces cerevisiae Proteins ; Signal Transduction ; Tumor Suppressor Proteins
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  • 91
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    Two genetically separable steps in the differentiation of thymic epithelium (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-05-10
    Description: The development of the thymus depends initially on epithelial-mesenchymal and subsequently on reciprocal lympho-stromal interactions. The genetic steps governing development and differentiation of the thymic microenvironment are unknown. With the use of a targeted disruption of the whn gene, which recapitulates the phenotype of the athymic nude mouse, the WHN transcription factor was shown to be the product of the nude locus. Formation of the thymic epithelial primordium before the entry of lymphocyte progenitors did not require the activity of WHN. However, subsequent differentiation of primitive precursor cells into subcapsular, cortical, and medullary epithelial cells of the postnatal thymus did depend on activity of the whn gene. These results define the first genetically separable steps during thymic epithelial differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nehls, M -- Kyewski, B -- Messerle, M -- Waldschutz, R -- Schuddekopf, K -- Smith, A J -- Boehm, T -- New York, N.Y. -- Science. 1996 May 10;272(5263):886-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Deutsches Krebsforschungszentrum, Im Neuenheimer Feld, Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8629026" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Animals, Newborn ; Base Sequence ; Cell Differentiation/*genetics ; Crosses, Genetic ; DNA-Binding Proteins/*genetics/physiology ; Epithelial Cells ; Female ; Forkhead Transcription Factors ; Gene Expression Regulation, Developmental ; Gene Targeting ; Genetic Complementation Test ; Male ; Mice ; Mice, Nude ; Molecular Sequence Data ; T-Lymphocytes/*cytology ; Thymus Gland/*cytology/embryology/metabolism ; Transcription Factors/*genetics/physiology
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  • 92
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    Researchers nail down leptin receptor (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barinaga, M -- New York, N.Y. -- Science. 1996 Feb 16;271(5251):913.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8584929" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier Proteins/biosynthesis/chemistry/*genetics ; Chromosome Mapping ; Cloning, Molecular ; Diabetes Mellitus/*genetics ; Humans ; Leptin ; Mice ; Mutation ; Obesity/*genetics ; Proteins/genetics ; RNA, Messenger/genetics ; Rats ; *Receptors, Cell Surface ; Receptors, Cytokine/biosynthesis/chemistry/*genetics ; Receptors, Leptin
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  • 93
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    In vitro development of primitive and definitive erythrocytes from different precursors (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-05-03
    Description: During mouse embryogenesis the production of "primitive" erythrocytes (EryP) precedes the production of "definitive" erythrocytes (EryD) in parallel with the transition of the hematopoietic site from the yolk sac to the fetal liver. On a macrophage colony-stimulating factor-deficient stromal cell line OP9, mouse embryonic stem cells were shown to give rise to EryP and EryD sequentially with a time course similar to that seen in murine ontogeny. Studies of the different growth factor requirements and limiting dilution analysis of precursor frequencies indicate that most EryP and EryD probably developed from different precursors by way of distinct differentiation pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakano, T -- Kodama, H -- Honjo, T -- New York, N.Y. -- Science. 1996 May 3;272(5262):722-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Chemistry, Faculty of Medicine, Kyoto University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8614833" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cell Division ; Cell Line ; Cell Lineage ; Cell Separation ; Cells, Cultured ; Coculture Techniques ; Erythroid Precursor Cells/*cytology ; *Erythropoiesis ; Erythropoietin/pharmacology ; Kinetics ; Mice ; Signal Transduction ; Stem Cell Factor/physiology
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  • 94
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    Interfering with apoptosis: Ca(2+)-binding protein ALG-2 and Alzheimer's disease gene ALG-3 (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-01-26
    Description: Two apoptosis-linked genes, named ALG-2 and ALG-3, were identified by means of a functional selection strategy. ALG-2 codes for a Ca(2+)-binding protein required for T cell receptor-, Fas-, and glucocorticoid-induced cell death. ALG-3, a partial complementary DNA that is homologous to the familial Alzheimer's disease gene STM2, rescues a T cell hybridoma from T cell receptor- and Fas-induced apoptosis. These findings suggest that ALG-2 may mediate Ca(2+)-regulated signals along the death pathway and that cell death may play a role in Alzheimer's disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vito, P -- Lacana, E -- D'Adamio, L -- New York, N.Y. -- Science. 1996 Jan 26;271(5248):521-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉T Cell Molecular Biology Unit, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8560270" target="_blank"〉PubMed〈/a〉
    Keywords: Alkaloids/pharmacology ; Alzheimer Disease/*genetics ; Amino Acid Sequence ; Animals ; Antigens, CD95/metabolism ; *Apoptosis/drug effects ; Apoptosis Regulatory Proteins ; Calcium/metabolism ; Calcium-Binding Proteins/chemistry/genetics/*physiology ; Cell Line ; Cloning, Molecular ; DNA, Complementary ; Dactinomycin/pharmacology ; Dexamethasone/pharmacology ; Fas Ligand Protein ; Hybridomas ; Interleukin-2/metabolism ; Membrane Glycoproteins/metabolism ; Membrane Proteins/chemistry/genetics/*physiology ; Mice ; Molecular Sequence Data ; Presenilin-2 ; Receptors, Antigen, T-Cell/physiology ; Signal Transduction ; Staurosporine ; T-Lymphocytes ; Transfection ; Up-Regulation
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 95
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    Induction of protective CTL responses in newborn mice by a murine retrovirus (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-03-22
    Description: The susceptibility of neonates to virus-induced disease is thought to reflect, in part, the immaturity of their immune systems. However, inoculation of newborn mice with low doses of Cas-Br-M murine leukemia virus induced a protective cytotoxic T lymphocyte (CTL) response. The inability of neonates to develop a CTL response to high doses of virus was not the result of immunological immaturity but correlated with the induction of a nonprotective type 2 cytokine response. Thus, the initial viral dose is critical in the development of protective immunity in newborns.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sarzotti, M -- Robbins, D S -- Hoffman, P M -- New York, N.Y. -- Science. 1996 Mar 22;271(5256):1726-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Rsearch Service, Veterans Affairs Medical Center, Baltimore, MD 21201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8596933" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn/*immunology ; Cells, Cultured ; Cytotoxicity, Immunologic ; Dose-Response Relationship, Immunologic ; Immunotherapy, Adoptive ; Interferon-gamma/biosynthesis ; Interleukin-4/biosynthesis ; Leukemia Virus, Murine/*immunology ; Mice ; Retroviridae Infections/*immunology ; T-Lymphocytes, Cytotoxic/*immunology ; Tumor Virus Infections/*immunology
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  • 96
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    Immunostimulatory DNA sequences necessary for effective intradermal gene immunization (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-07-19
    Description: Vaccination with naked DNA elicits cellular and humoral immune responses that have a T helper cell type 1 bias. However, plasmid vectors expressing large amounts of gene product do not necessarily induce immune responses to the encoded antigens. Instead, the immunogenicity of plasmid DNA (pDNA) requires short immunostimulatory DNA sequences (ISS) that contain a CpG dinucleotide in a particular base context. Human monocytes transfected with pDNA or double-stranded oligonucleotides containing the ISS, but not those transfected with ISS-deficient pDNA or oligonucleotides, transcribed large amounts of interferon-alpha, interferon-beta, and interleukin-12. Although ISS are necessary for gene vaccination, they down-regulate gene expression and thus may interfere with gene replacement therapy by inducing proinflammatory cytokines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sato, Y -- Roman, M -- Tighe, H -- Lee, D -- Corr, M -- Nguyen, M D -- Silverman, G J -- Lotz, M -- Carson, D A -- Raz, E -- AI36214/AI/NIAID NIH HHS/ -- AI37305/AI/NIAID NIH HHS/ -- AR41897/AR/NIAMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1996 Jul 19;273(5273):352-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine and The Sam and Rose Stein Institute for Research on Aging, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0663, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8662521" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Ampicillin Resistance/*genetics ; Animals ; *Antibody Formation ; Base Sequence ; CpG Islands ; Cytokines/*biosynthesis ; DNA/chemistry/genetics/*immunology ; Female ; Gene Expression Regulation ; Genetic Vectors ; Humans ; Injections, Intradermal ; Interferons/biosynthesis ; Interleukin-12/biosynthesis ; Mice ; Mice, Inbred BALB C ; Molecular Sequence Data ; Monocytes/immunology ; Plasmids/genetics/*immunology ; Th1 Cells/immunology ; Transfection ; *Vaccination ; beta-Galactosidase/*immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 97
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    Enhancement of antitumor immunity by CTLA-4 blockade (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-03-22
    Description: One reason for the poor immunogenicity of many tumors may be that they cannot provide signals for CD28-mediated costimulation necessary to fully activate T cells. It has recently become apparent that CTLA-4, a second counterreceptor for the B7 family of costimulatory molecules, is a negative regulator of T cell activation. Here, in vivo administration of antibodies to CTLA-4 resulted in the rejection of tumors, including preestablished tumors. Furthermore, this rejection resulted in immunity to a secondary exposure to tumor cells. These results suggest that blockade of the inhibitory effects of CTLA-4 can allow for, and potentiate, effective immune responses against tumor cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Leach, D R -- Krummel, M F -- Allison, J P -- CA09179/CA/NCI NIH HHS/ -- CA40041/CA/NCI NIH HHS/ -- CA57986/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1996 Mar 22;271(5256):1734-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Research Laboratory, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8596936" target="_blank"〉PubMed〈/a〉
    Keywords: Abatacept ; Animals ; Antibodies/immunology ; Antigens, CD ; Antigens, CD28/immunology ; Antigens, CD80/immunology ; Antigens, Differentiation/*immunology ; CTLA-4 Antigen ; Female ; Graft Rejection ; *Immunoconjugates ; Immunologic Memory ; *Lymphocyte Activation ; Mice ; Mice, Inbred A ; Mice, Inbred BALB C ; Neoplasm Transplantation ; Neoplasms, Experimental/*immunology ; T-Lymphocytes/*immunology ; Transfection ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 98
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    Susceptibility to Leishmania major infection in interleukin-4-deficient mice (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-02-16
    Description: Interleukin-4 (IL-4), a pleiotropic cytokine, is a major regulator of the immune system and is considered crucial for the development of T helper cell type 2 (TH2) responses. The susceptibility of BALB/c mice to infection with Leishmania major has been associated with a polarized TH2 response and an inability to down-modulate IL-4 production. The role of IL-4 in vivo was examined directly by disrupting the IL-4 gene in BALB/c embryonic stem cells. Despite the absence of IL-4, the genetically pure BALB/c mutant mice remained susceptible to L. major infection, showed no signs of lesion healing or parasite clearance, and did not switch to a TH1 phenotype.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Noben-Trauth, N -- Kropf, P -- Muller, I -- 1R29 AI37636-01/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1996 Feb 16;271(5251):987-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Jackson Laboratory, Bar Harbor, ME 04609, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8584936" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cytokines/analysis ; Disease Susceptibility ; Immunity, Innate ; Immunoglobulin E/blood ; Immunoglobulin G/blood ; Interferon-gamma/biosynthesis ; Interleukin-4/biosynthesis/deficiency/genetics/*immunology ; Leishmania major/*immunology ; Leishmaniasis, Cutaneous/*immunology ; Mice ; Mice, Inbred BALB C ; Mice, Knockout ; Molecular Sequence Data ; Th1 Cells/immunology ; Th2 Cells/*immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 99
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    Unknown
    An essential role for NF-kappaB in preventing TNF-alpha-induced cell death (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-11-01
    Description: Studies on mice deficient in nuclear factor kappa B (NF-kappaB) subunits have shown that this transcription factor is important for lymphocyte responses to antigens and cytokine-inducible gene expression. In particular, the RelA (p65) subunit is required for induction of tumor necrosis factor-alpha (TNF-alpha)-dependent genes. Treatment of RelA-deficient (RelA-/-) mouse fibroblasts and macrophages with TNF-alpha resulted in a significant reduction in viability, whereas RelA+/+ cells were unaffected. Cytotoxicity to both cell types was mediated by TNF receptor 1. Reintroduction of RelA into RelA-/- fibroblasts resulted in enhanced survival, demonstrating that the presence of RelA is required for protection from TNF-alpha. These results have implications for the treatment of inflammatory and proliferative diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beg, A A -- Baltimore, D -- New York, N.Y. -- Science. 1996 Nov 1;274(5288):782-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8864118" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Antigens, CD/metabolism ; *Cell Death ; Cell Survival ; Cells, Cultured ; Gene Expression Regulation ; Humans ; Macrophages/cytology ; Mice ; NF-kappa B/genetics/*physiology ; Receptors, Tumor Necrosis Factor/metabolism ; Receptors, Tumor Necrosis Factor, Type I ; Signal Transduction ; Transcription Factor RelA ; Transfection ; Tumor Necrosis Factor-alpha/*pharmacology/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 100
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    Exposure to methylene chloride (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-10-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, W C 3rd -- New York, N.Y. -- Science. 1996 Oct 18;274(5286):327.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8927983" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carcinogenicity Tests ; Carcinogens/*toxicity ; Humans ; Methylene Chloride/*toxicity ; Mice ; Neoplasms/*chemically induced ; Rats
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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