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  • Cell Line  (77)
  • Cells, Cultured  (48)
  • American Association for the Advancement of Science (AAAS)  (122)
  • American Geophysical Union
  • Blackwell Publishing Ltd
  • Cell Press
  • 1995-1999  (122)
  • 1985-1989
  • 1980-1984
  • 1975-1979
  • 1940-1944
  • 1995  (122)
Collection
Publisher
  • American Association for the Advancement of Science (AAAS)  (122)
  • American Geophysical Union
  • Blackwell Publishing Ltd
  • Cell Press
Years
  • 1995-1999  (122)
  • 1985-1989
  • 1980-1984
  • 1975-1979
  • 1940-1944
Year
  • 1
    Publication Date: 1995-07-07
    Description: Human T cell lymphotropic virus I (HTLV-I) is the etiological agent for adult T cell leukemia and tropical spastic paraparesis (also termed HTLV-I-associated myelopathy). HTLV-I-infected peripheral blood T cells exhibit an initial phase of interleukin-2 (IL-2)-dependent growth; over time, by an unknown mechanism, the cells become IL-2-independent. Whereas the Jak kinases Jak1 and Jak3 and the signal transducer and activator of transcription proteins Stat3 and Stat5 are activated in normal T cells in response to IL-2, this signaling pathway was constitutively activated in HTLV-I-transformed cells. In HTLV-I-infected cord blood lymphocytes, the transition from IL-2-dependent to IL-2-independent growth correlated with the acquisition of a constitutively activated Jak-STAT pathway, which suggests that this pathway participates in HTLV-I-mediated T cell transformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Migone, T S -- Lin, J X -- Cereseto, A -- Mulloy, J C -- O'Shea, J J -- Franchini, G -- Leonard, W J -- New York, N.Y. -- Science. 1995 Jul 7;269(5220):79-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Immunology, National Heart, Lung, and Blood Institute, 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/7604283" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cell Line, Transformed ; *Cell Transformation, Viral ; Cells, Cultured ; DNA-Binding Proteins/*metabolism ; Enzyme Activation ; Fetal Blood/cytology ; Human T-lymphotropic virus 1/*physiology ; Humans ; Interleukin-2/pharmacology ; Janus Kinase 1 ; Janus Kinase 3 ; *Milk Proteins ; Molecular Sequence Data ; Phosphorylation ; Protein-Tyrosine Kinases/*metabolism ; Receptors, Interleukin-2/metabolism ; STAT3 Transcription Factor ; STAT5 Transcription Factor ; Signal Transduction ; T-Lymphocytes/metabolism/*virology ; Trans-Activators/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1995-12-15
    Description: Immune responses dominated by interleukin-4 (IL-4)-producing T helper type 2 (TH2) cells or by interferon gamma (IFN-gamma)-producing T helper type 1 (TH1) cells express distinctive protection against infection with different pathogens. Interleukin-4 promotes the differentiation of naive CD4+ T cells into IL-4 producers and suppresses their development into IFN-gamma producers. CD1-specific splenic CD4+NK1.1+ T cells, a numerically minor population, produced IL-4 promptly on in vivo stimulation. This T cell population was essential for the induction of IL-4-producing cells and for switching to immunoglobulin E, an IL-4-dependent event, in response to injection of antibodies to immunoglobulin D.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoshimoto, T -- Bendelac, A -- Watson, C -- Hu-Li, J -- Paul, W E -- New York, N.Y. -- Science. 1995 Dec 15;270(5243):1845-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, National Institute of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8525383" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CD4-Positive T-Lymphocytes/*immunology ; Cells, Cultured ; Immunoglobulin E/*biosynthesis ; Interleukin-4/biosynthesis ; Killer Cells, Natural ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Spleen/cytology ; Th2 Cells/*immunology ; Thymus Gland/cytology
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  • 3
    Publication Date: 1995-07-14
    Description: CD1 molecules are distantly related to the major histocompatibility complex (MHC) class I proteins. They are of unknown function. Screening random peptide phage display libraries with soluble empty mouse CD1 (mCD1) identified a peptide binding motif. It consists of three anchor positions occupied by aromatic or bulky hydrophobic amino acids. Equilibrium binding studies demonstrated that mCD1 binds peptides containing the appropriate motif with relatively high affinity. However, in contrast to classical MHC class I molecules, strong binding to mCD1 required relatively long peptides. Peptide-specific, mCD1-restricted T cell responses can be raised, which suggests that the findings are of immunological significance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Castano, A R -- Tangri, S -- Miller, J E -- Holcombe, H R -- Jackson, M R -- Huse, W D -- Kronenberg, M -- Peterson, P A -- New York, N.Y. -- Science. 1995 Jul 14;269(5221):223-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7542403" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Antigen Presentation ; Antigens, CD/chemistry/*immunology/metabolism ; Antigens, CD1 ; Cell Line ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Peptides/chemistry/*immunology/metabolism ; T-Lymphocytes, Cytotoxic/*immunology ; Transfection
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  • 4
    Publication Date: 1995-09-01
    Description: Eukaryotic chromosomes are capped with repetitive telomere sequences that protect the ends from damage and rearrangements. Telomere repeats are synthesized by telomerase, a ribonucleic acid (RNA)-protein complex. Here, the cloning of the RNA component of human telomerase, termed hTR, is described. The template region of hTR encompasses 11 nucleotides (5'-CUAACCCUAAC) complementary to the human telomere sequence (TTAGGG)n. Germline tissues and tumor cell lines expressed more hTR than normal somatic cells and tissues, which have no detectable telomerase activity. Human cell lines that expressed hTR mutated in the template region generated the predicted mutant telomerase activity. HeLa cells transfected with an antisense hTR lost telomeric DNA and began to die after 23 to 26 doublings. Thus, human telomerase is a critical enzyme for the long-term proliferation of immortal tumor cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Feng, J -- Funk, W D -- Wang, S S -- Weinrich, S L -- Avilion, A A -- Chiu, C P -- Adams, R R -- Chang, E -- Allsopp, R C -- Yu, J -- AG09383/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 1995 Sep 1;269(5228):1236-41.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Geron Corporation, Menlo Park, CA 94025, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7544491" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Death ; *Cell Division ; Cell Line ; Cloning, Molecular ; DNA Nucleotidylexotransferase/antagonists & ; inhibitors/chemistry/genetics/*metabolism ; HeLa Cells ; Humans ; Molecular Sequence Data ; Oligonucleotides, Antisense/pharmacology ; Polymerase Chain Reaction ; RNA/chemistry/genetics/*metabolism ; Templates, Genetic ; Transfection ; Tumor Cells, Cultured
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  • 5
    Publication Date: 1995-11-03
    Description: The human beta-globin locus control region (LCR) controls the transcription, chromatin structure, and replication timing of the entire locus. DNA replication was found to initiate in a transcription-independent manner within a region located 50 kilobases downstream of the LCR in human, mouse, and chicken cells containing the entire human beta-globin locus. However, DNA replication did not initiate within a deletion mutant locus lacking the sequences that encompass the LCR. This mutant locus replicated in the 3' to 5' direction. Thus, interactions between distantly separated sequences can be required for replication initiation, and factors mediating this interaction appear to be conserved in evolution.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aladjem, M I -- Groudine, M -- Brody, L L -- Dieken, E S -- Fournier, R E -- Wahl, G M -- Epner, E M -- New York, N.Y. -- Science. 1995 Nov 3;270(5237):815-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Gene Expression Laboratory, Salk Institute, San Diego, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481774" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Biological Evolution ; Cell Line ; Chickens ; *DNA Replication ; Globins/*genetics ; Humans ; Hybrid Cells ; Mice ; Molecular Sequence Data ; *Regulatory Sequences, Nucleic Acid ; Sequence Deletion ; Tumor Cells, Cultured
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-12-22
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fernandez-Sanchez, M T -- Novelli, A -- New York, N.Y. -- Science. 1995 Dec 22;270(5244):2019.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8533100" target="_blank"〉PubMed〈/a〉
    Keywords: Brain-Derived Neurotrophic Factor ; Cell Death/drug effects ; Cells, Cultured ; Cerebellum/cytology/drug effects ; Glutamic Acid/*toxicity ; Nerve Growth Factors/*pharmacology ; Nerve Tissue Proteins/*pharmacology ; Neurons/cytology/*drug effects ; Neurotrophin 3 ; Receptors, N-Methyl-D-Aspartate/physiology
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  • 7
    Publication Date: 1995-03-31
    Description: Members of the interleukin-6 family of cytokines bind to and activate receptors that contain a common subunit, gp130. This leads to the activation of Stat3 and Stat1, two cytoplasmic signal transducers and activators of transcription (STATs), by tyrosine phosphorylation. Serine phosphorylation of Stat3 was constitutive and was enhanced by signaling through gp130. In cells of lymphoid and neuronal origins, inhibition of serine phosphorylation prevented the formation of complexes of DNA with Stat3-Stat3 but not with Stat3-Stat1 or Stat1-Stat1 dimers. In vitro serine dephosphorylation of Stat3 also inhibited DNA binding of Stat3-Stat3. The requirement of serine phosphorylation for Stat3-Stat3.DNA complex formation was inversely correlated with the affinity of Stat3-Stat3 for the binding site. Thus, serine phosphorylation appears to enhance or to be required for the formation of stable Stat3-Stat3.DNA complexes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, X -- Blenis, J -- Li, H C -- Schindler, C -- Chen-Kiang, S -- CA46595/CA/NCI NIH HHS/ -- HL 21006/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1995 Mar 31;267(5206):1990-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Brookdale Center for Molecular Biology, Mount Sinai School of Medicine, New York, NY 10029, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7701321" target="_blank"〉PubMed〈/a〉
    Keywords: 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine ; Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Cell Nucleus/metabolism ; Ciliary Neurotrophic Factor ; Cytoplasm/metabolism ; DNA/metabolism ; DNA-Binding Proteins/*metabolism ; Humans ; Interleukin-6/metabolism/*pharmacology ; Isoquinolines/pharmacology ; Mice ; Molecular Sequence Data ; Nerve Tissue Proteins/pharmacology ; Phosphorylation ; Piperazines/pharmacology ; *Promoter Regions, Genetic ; STAT1 Transcription Factor ; STAT3 Transcription Factor ; Serine/*metabolism ; Signal Transduction ; Threonine/metabolism ; Trans-Activators/*metabolism ; Tumor Cells, Cultured ; Tyrosine/metabolism
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  • 8
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-01-27
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Montaner, L J -- Gordon, S -- New York, N.Y. -- Science. 1995 Jan 27;267(5197):538-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7824955" target="_blank"〉PubMed〈/a〉
    Keywords: Cells, Cultured ; Down-Regulation ; HIV-1/*physiology ; Humans ; Interleukins/biosynthesis/*immunology ; Macrophages/*virology ; T-Lymphocytes, Helper-Inducer/*immunology/virology ; Virus Replication
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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-02-03
    Description: Neurotrophic factors participate in the development and maintenance of the nervous system. Application of ciliary neurotrophic factor (CNTF), a protein that promotes survival of motor neurons, resulted in an immediate potentiation of spontaneous and impulse-evoked transmitter release at developing neuromuscular synapses in Xenopus cell cultures. When CNTF was applied at the synapse, the onset of the potentiation was slower than that produced by application at the cell body of the presynaptic neuron. The potentiation effect was abolished when the neurite shaft was severed from the cell body. Thus, transmitter secretion from the nerve terminals is under immediate somatic control and can be regulated by CNTF.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stoop, R -- Poo, M M -- New York, N.Y. -- Science. 1995 Feb 3;267(5198):695-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Columbia University, New York, NY 10027.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7839148" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/*metabolism ; Action Potentials/drug effects ; Animals ; Brain-Derived Neurotrophic Factor ; Calcium/metabolism ; Cells, Cultured ; Ciliary Neurotrophic Factor ; Cycloheximide/pharmacology ; Dactinomycin/pharmacology ; Nerve Tissue Proteins/metabolism/*pharmacology ; Neurites/physiology ; Neuromuscular Junction/drug effects/*metabolism ; Patch-Clamp Techniques ; Receptor, Ciliary Neurotrophic Factor ; Receptors, Nerve Growth Factor/metabolism ; *Signal Transduction ; Synapses/drug effects/*metabolism ; Synaptic Transmission ; Xenopus
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  • 10
    Publication Date: 1995-06-30
    Description: CD25 expression occurs early in thymocyte differentiation. The mechanism of induction of CD25 before T cell receptor rearrangement and the importance of this mechanism for T cell development are unknown. In a thymus reconstitution assay, tumor necrosis factor alpha (TNF-alpha) and interleukin-1 alpha (IL-1 alpha), two cytokines produced within the thymic microenvironment, induced CD25 expression on early immature thymocytes. Either TNF-alpha or IL-1 alpha was necessary for further thymocyte maturation and CD4+CD8+ differentiation. In irradiated mice reconstituted with CD117+CD25+ thymocytes, commitment to the T cell lineage was marked by the loss of precursor multipotency.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zuniga-Pflucker, J C -- Jiang, D -- Lenardo, M J -- New York, N.Y. -- Science. 1995 Jun 30;268(5219):1906-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7541554" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cells, Cultured ; Hematopoietic Stem Cells/*cytology/immunology ; Interleukin-1/pharmacology/*physiology ; Interleukin-7/pharmacology ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, SCID ; Organ Culture Techniques ; Proto-Oncogene Proteins/biosynthesis ; Proto-Oncogene Proteins c-kit ; Receptor Protein-Tyrosine Kinases/biosynthesis ; Receptors, Colony-Stimulating Factor/biosynthesis ; Receptors, Interleukin-2/*biosynthesis ; Stromal Cells/physiology ; T-Lymphocyte Subsets/cytology/immunology ; T-Lymphocytes/*cytology/immunology ; Thymus Gland/cytology/*embryology/immunology ; Tumor Necrosis Factor-alpha/pharmacology/*physiology
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  • 11
    Publication Date: 1995-01-27
    Description: Lamellar ichthyosis is a severe congenital skin disorder characterized by generalized large scales and variable redness. Affected individuals in three families exhibited drastically reduced keratinocyte transglutaminase (TGK) activity. In two of these families, expression of TGK transcripts was diminished or abnormal and no TGK protein was detected. Homozygous or compound heterozygous mutations of the TGK gene were identified in all families. These data suggest that defects in TGK cause lamellar ichthyosis and that intact cross-linkage of cornified cell envelopes is required for epidermal tissue homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huber, M -- Rettler, I -- Bernasconi, K -- Frenk, E -- Lavrijsen, S P -- Ponec, M -- Bon, A -- Lautenschlager, S -- Schorderet, D F -- Hohl, D -- New York, N.Y. -- Science. 1995 Jan 27;267(5197):525-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Dermatology, Centre Hospitalier Universitaire Vandois (CHUV), Hopital de Beaumont, Lausanne, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7824952" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Cell Membrane/metabolism ; Cells, Cultured ; Codon ; Female ; Gene Deletion ; Genetic Linkage ; Heterozygote ; Homozygote ; Humans ; Ichthyosis, Lamellar/enzymology/*genetics ; Introns ; Keratinocytes/*enzymology/ultrastructure ; Male ; Membrane Proteins/metabolism ; Molecular Sequence Data ; Mutation ; Pedigree ; Point Mutation ; Protein Precursors/metabolism ; Transglutaminases/*genetics/metabolism
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  • 12
    Publication Date: 1995-12-22
    Description: A physical map has been constructed of the human genome containing 15,086 sequence-tagged sites (STSs), with an average spacing of 199 kilobases. The project involved assembly of a radiation hybrid map of the human genome containing 6193 loci and incorporated a genetic linkage map of the human genome containing 5264 loci. This information was combined with the results of STS-content screening of 10,850 loci against a yeast artificial chromosome library to produce an integrated map, anchored by the radiation hybrid and genetic maps. The map provides radiation hybrid coverage of 99 percent and physical coverage of 94 percent of the human genome. The map also represents an early step in an international project to generate a transcript map of the human genome, with more than 3235 expressed sequences localized. The STSs in the map provide a scaffold for initiating large-scale sequencing of the human genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hudson, T J -- Stein, L D -- Gerety, S S -- Ma, J -- Castle, A B -- Silva, J -- Slonim, D K -- Baptista, R -- Kruglyak, L -- Xu, S H -- Hu, X -- Colbert, A M -- Rosenberg, C -- Reeve-Daly, M P -- Rozen, S -- Hui, L -- Wu, X -- Vestergaard, C -- Wilson, K M -- Bae, J S -- Maitra, S -- Ganiatsas, S -- Evans, C A -- DeAngelis, M M -- Ingalls, K A -- Nahf, R W -- Horton, L T Jr -- Anderson, M O -- Collymore, A J -- Ye, W -- Kouyoumjian, V -- Zemsteva, I S -- Tam, J -- Devine, R -- Courtney, D F -- Renaud, M T -- Nguyen, H -- O'Connor, T J -- Fizames, C -- Faure, S -- Gyapay, G -- Dib, C -- Morissette, J -- Orlin, J B -- Birren, B W -- Goodman, N -- Weissenbach, J -- Hawkins, T L -- Foote, S -- Page, D C -- Lander, E S -- HG00017/HG/NHGRI NIH HHS/ -- HG00098/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 1995 Dec 22;270(5244):1945-54.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead-MIT Center for Genome Research, Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8533086" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; *Chromosome Mapping ; Chromosomes, Artificial, Yeast ; Databases, Factual ; Gene Expression ; Genetic Markers ; *Genome, Human ; *Human Genome Project ; Humans ; Hybrid Cells ; Polymerase Chain Reaction ; *Sequence Analysis, DNA ; *Sequence Tagged Sites
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  • 13
    Publication Date: 1995-05-26
    Description: Receptor-mediated activation of heterotrimeric guanine nucleotide-binding proteins (G proteins) results in the dissociation of alpha from beta gamma subunits, thereby allowing both to regulate effectors. Little is known about the regions of effectors required for recognition of G beta gamma. A peptide encoding residues 956 to 982 of adenylyl cyclase 2 specifically blocked G beta gamma stimulation of adenylyl cyclase 2, phospholipase C-beta 3, potassium channels, and beta-adrenergic receptor kinase as well as inhibition of calmodulin-stimulated adenylyl cyclases, but had no effect on interactions between G beta gamma and G alpha o. Substitutions in this peptide identified a functionally important motif, Gln-X-X-Glu-Arg, that is also conserved in regions of potassium channels and beta-adrenergic receptor kinases that participate in G beta gamma interactions. Thus, the region defined by residues 956 to 982 of adenylyl cyclase 2 may contain determinants important for receiving signals from G beta gamma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, J -- DeVivo, M -- Dingus, J -- Harry, A -- Li, J -- Sui, J -- Carty, D J -- Blank, J L -- Exton, J H -- Stoffel, R H -- CA-44998/CA/NCI NIH HHS/ -- DK-37219/DK/NIDDK NIH HHS/ -- DK-38761/DK/NIDDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1995 May 26;268(5214):1166-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Mount Sinai School of Medicine, City University of New York, NY 10029, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7761832" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclase Inhibitors ; Adenylyl Cyclases/*chemistry/metabolism ; Amino Acid Sequence ; Animals ; Cell Line ; Enzyme Activation/physiology ; GTP-Binding Proteins/chemistry/*physiology ; Guanosine Triphosphate/physiology ; In Vitro Techniques ; Molecular Sequence Data ; Peptide Fragments/chemical synthesis/chemistry/physiology ; Potassium Channels/physiology ; Rats ; Receptor Protein-Tyrosine Kinases/metabolism ; Receptors, Adrenergic, beta/metabolism ; Signal Transduction/physiology ; Structure-Activity Relationship ; Type C Phospholipases/metabolism
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  • 14
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-09-08
    Description: TNF receptor-associated factor (TRAF) proteins are candidate signal transducers that associate with the cytoplasmic domains of members of the tumor necrosis factor (TNF) receptor superfamily. The role of TRAFs in the TNF-R2 and CD40 signal transduction pathways, which result in the activation of transcription factor NF-kappa B, was investigated. Overexpression of TRAF2, but not TRAF1 or TRAF3, was sufficient to induce NF-kappa B activation. A truncated derivative of TRAF2 lacking an amino-terminal RING finger domain was a dominant-negative inhibitor of NF-kappa B activation mediated by TNF-R2 and CD40. Thus, TRAF2 is a common mediator of TNF-R2 and CD40 signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rothe, M -- Sarma, V -- Dixit, V M -- Goeddel, D V -- CA64803/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Sep 8;269(5229):1424-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biology Department, Tularik, Inc., South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7544915" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/*metabolism ; Antigens, CD40 ; Antigens, Differentiation, B-Lymphocyte/*metabolism ; Cell Line ; Gene Expression Regulation ; Genes, Reporter ; Mice ; NF-kappa B/*metabolism ; Proteins/*metabolism ; Receptors, Tumor Necrosis Factor/*metabolism ; Receptors, Tumor Necrosis Factor, Type I ; Receptors, Tumor Necrosis Factor, Type II ; *Signal Transduction ; T-Lymphocytes/metabolism ; TNF Receptor-Associated Factor 2 ; Transfection
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  • 15
    Publication Date: 1995-07-28
    Description: Human papillomaviruses (HPVs) are associated with the majority of cervical cancers and encode a transforming protein, E6, that interacts with the tumor suppressor protein p53. Because E6 has p53-independent transforming activity, the yeast two-hybrid system was used to search for other E6-binding proteins. One such protein, E6BP, interacted with cancer-associated HPV E6 and with bovine papillomavirus type 1 (BPV-1) E6. The transforming activity of BPV-1 E6 mutants correlated with their E6BP-binding ability. E6BP is identical to a putative calcium-binding protein, ERC-55, that appears to be localized in the endoplasmic reticulum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, J J -- Reid, C E -- Band, V -- Androphy, E J -- R01CA44174/CA/NCI NIH HHS/ -- R29CA56803/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Jul 28;269(5223):529-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Dermatology, New England Medical Center, Boston, MA, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7624774" target="_blank"〉PubMed〈/a〉
    Keywords: Bovine papillomavirus 1/physiology ; Calcium-Binding Proteins/analysis/*metabolism ; Cell Transformation, Viral ; Cells, Cultured ; Endoplasmic Reticulum/chemistry ; HeLa Cells ; Humans ; Oncogene Proteins, Viral/analysis/*metabolism ; *Papillomaviridae ; Recombinant Fusion Proteins/metabolism ; *Repressor Proteins ; Ubiquitin-Protein Ligases ; Viral Proteins/metabolism
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  • 16
    Publication Date: 1995-11-03
    Description: The BRCA1 gene product was identified as a 220-kilodalton nuclear phosphoprotein in normal cells, including breast ductal epithelial cells, and in 18 of 20 tumor cell lines derived from tissues other than breast and ovary. In 16 of 17 breast and ovarian cancer lines and 17 of 17 samples of cells obtained from malignant effusions, however, BRCA1 localized mainly in cytoplasm. Absence of BRCA1 or aberrant subcellular location was also observed to a variable extent in histological sections of many breast cancer biopsies. These findings suggest that BRCA1 abnormalities may be involved in the pathogenesis of many breast cancers, sporadic as well as familial.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Y -- Chen, C F -- Riley, D J -- Allred, D C -- Chen, P L -- Von Hoff, D -- Osborne, C K -- Lee, W H -- CA58318/CA/NCI NIH HHS/ -- EY05758/EY/NEI NIH HHS/ -- P50CA58183/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Nov 3;270(5237):789-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Molecular Medicine/Institute of Biotechnology, University of Texas Health Science Center at San Antonio 78245, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481765" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; BRCA1 Protein ; Base Sequence ; Breast/*chemistry ; Breast Neoplasms/*chemistry/ultrastructure ; Cell Fractionation ; Cell Line ; Cell Nucleus/chemistry ; Cytoplasm/*chemistry ; Female ; Humans ; Male ; Molecular Sequence Data ; Mutation ; Neoplasm Proteins/*analysis/genetics/metabolism ; Neoplasms/chemistry/ultrastructure ; Ovarian Neoplasms/chemistry/ultrastructure ; Pleural Effusion, Malignant/chemistry/pathology ; Transcription Factors/*analysis/genetics/metabolism ; Tumor Cells, Cultured
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  • 17
    Publication Date: 1995-08-11
    Description: Cystic fibrosis transmembrane regulator (CFTR), the gene product that is mutated in cystic fibrosis (CF) patients, has a well-recognized function as a cyclic adenosine 3',5'-monophosphate (cAMP)-regulated chloride channel, but this property does not account for the abnormally high basal rate and cAMP sensitivity of sodium ion absorption in CF airway epithelia. Expression of complementary DNAs for rat epithelial Na+ channel (rENaC) alone in Madin Darby canine kidney (MDCK) epithelial cells generated large amiloride-sensitive sodium currents that were stimulated by cAMP, whereas coexpression of human CFTR with rENaC generated smaller basal sodium currents that were inhibited by cAMP. Parallel studies that measured regulation of sodium permeability in fibroblasts showed similar results. In CF airway epithelia, the absence of this second function of CFTR as a cAMP-dependent regulator likely accounts for abnormal sodium transport.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stutts, M J -- Canessa, C M -- Olsen, J C -- Hamrick, M -- Cohn, J A -- Rossier, B C -- Boucher, R C -- CFF R026/PHS HHS/ -- HL 34322/HL/NHLBI NIH HHS/ -- HL 42384/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1995 Aug 11;269(5225):847-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cystic Fibrosis/Pulmonary Research and Treatment Center, University of North Carolina at Chapel Hill 27599-7020, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7543698" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Absorption ; Amiloride/pharmacology ; Animals ; Cell Line ; Cell Membrane Permeability ; Chloride Channels/metabolism ; Cyclic AMP/*metabolism ; Cystic Fibrosis/*metabolism ; Cystic Fibrosis Transmembrane Conductance Regulator ; DNA, Complementary ; Dogs ; Humans ; Membrane Proteins/*metabolism ; Mice ; Patch-Clamp Techniques ; Rats ; Sodium/metabolism ; Sodium Channels/*metabolism ; Transfection
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  • 18
    Publication Date: 1995-05-05
    Description: After germinal center B cells undergo somatic mutation and antigen selection, they become either memory B cells or plasma cells, but the signal requirements that control entry into either pathway have been unclear. When purified human germinal center cells were cultured with interleukin-2, interleukin-10, and cells expressing CD40 ligand, cells with characteristics of memory B cells were generated. Removal of CD40 ligand from the system resulted in terminal differentiation of germinal center B cells into cells with the characteristics of plasma cells. These results indicate that CD40 ligand directs the differentiation of germinal center B cells toward memory B cells rather than toward plasma cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arpin, C -- Dechanet, J -- Van Kooten, C -- Merville, P -- Grouard, G -- Briere, F -- Banchereau, J -- Liu, Y J -- New York, N.Y. -- Science. 1995 May 5;268(5211):720-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Schering-Plough, Laboratory for Immunological Research, Dardilly, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7537388" target="_blank"〉PubMed〈/a〉
    Keywords: ADP-ribosyl Cyclase ; Antigens, CD/analysis ; Antigens, CD20 ; Antigens, CD38 ; Antigens, Differentiation/analysis ; Antigens, Differentiation, B-Lymphocyte/analysis ; B-Lymphocyte Subsets/*immunology ; CD40 Ligand ; Cell Differentiation/*immunology ; Cell Division/immunology ; Cells, Cultured ; Humans ; Immunoglobulin Isotypes/analysis ; Immunologic Memory/immunology ; Immunophenotyping ; Lymph Nodes/cytology ; Membrane Glycoproteins/immunology ; Plasma Cells/*immunology
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  • 19
    Publication Date: 1995-03-10
    Description: RNA encoding the B subunit of the alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) subtype of ionotropic glutamate receptor (GluR-B) undergoes a posttranscriptional modification in which a genomically encoded adenosine is represented as a guanosine in the GluR-B complementary DNA. In vitro editing of GluR-B RNA transcripts with HeLa cell nuclear extracts was found to result from an activity that converts adenosine to inosine in regions of double-stranded RNA by enzymatic base modification. This activity is consistent with that of a double-stranded RNA-specific adenosine deaminase previously described in Xenopus oocytes and widely distributed in mammalian tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rueter, S M -- Burns, C M -- Coode, S A -- Mookherjee, P -- Emeson, R B -- ES00267/ES/NIEHS NIH HHS/ -- New York, N.Y. -- Science. 1995 Mar 10;267(5203):1491-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37232-6600.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7878468" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine/*metabolism ; Animals ; Base Sequence ; Cell Line ; Codon ; Exons ; HeLa Cells ; Humans ; Inosine/*metabolism ; Inosine Monophosphate/metabolism ; Mice ; Molecular Sequence Data ; *RNA Editing ; RNA Precursors/metabolism ; RNA, Double-Stranded/metabolism ; Rats ; Receptors, AMPA/*genetics ; Repetitive Sequences, Nucleic Acid ; Tumor Cells, Cultured
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  • 20
    Publication Date: 1995-11-17
    Description: A member of the inwardly rectifying potassium channel family was cloned here. The channel, called BIR (Kir6.2), was expressed in large amounts in rat pancreatic islets and glucose-responsive insulin-secreting cell lines. Coexpression with the sulfonylurea receptor SUR reconstituted an inwardly rectifying potassium conductance of 76 picosiemens that was sensitive to adenosine triphosphate (ATP) (IKATP) and was inhibited by sulfonylureas and activated by diazoxide. The data indicate that these pancreatic beta cell potassium channels are a complex composed of at least two subunits--BIR, a member of the inward rectifier potassium channel family, and SUR, a member of the ATP-binding cassette superfamily. Gene mapping data show that these two potassium channel subunit genes are clustered on human chromosome 11 at position 11p15.1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Inagaki, N -- Gonoi, T -- Clement, J P 4th -- Namba, N -- Inazawa, J -- Gonzalez, G -- Aguilar-Bryan, L -- Seino, S -- Bryan, J -- DK44311/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1995 Nov 17;270(5239):1166-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Molecular Medicine, Chiba University School of Medicine, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7502040" target="_blank"〉PubMed〈/a〉
    Keywords: *ATP-Binding Cassette Transporters ; Adenosine Triphosphate/pharmacology ; Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Chromosome Mapping ; Chromosomes, Human, Pair 11 ; Cloning, Molecular ; Cricetinae ; Diazoxide/pharmacology ; Humans ; Islets of Langerhans/metabolism ; KATP Channels ; Mice ; Molecular Sequence Data ; Potassium/*metabolism ; Potassium Channels/*chemistry/genetics/*metabolism ; *Potassium Channels, Inwardly Rectifying ; Rats ; Receptors, Drug/*chemistry/metabolism ; Rubidium/metabolism ; Sulfonylurea Compounds/pharmacology ; Sulfonylurea Receptors
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  • 21
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-07-28
    Description: Whether neurons express major histocompatibility complex (MHC) class I genes has not been firmly established. The techniques of confocal laser microscopy, patch clamp electrophysiology, and reverse transcriptase-polymerase chain reaction were combined here to directly examine the inducibility of MHC class I genes in individual cultured rat hippocampal neurons. Transcription of MHC class I genes was very rare in neurons with spontaneous action potentials. In electrically silent neurons, transcription was noted, with expression of beta 2-microglobulin under tighter control than in class I heavy chain molecules. Surface expression of class I molecules occurred only in electrically silent neurons treated with interferon gamma. Immunosurveillance by cytotoxic T cells may be focused on functionally impaired neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Neumann, H -- Cavalie, A -- Jenne, D E -- Wekerle, H -- New York, N.Y. -- Science. 1995 Jul 28;269(5223):549-52.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroimmunology, Max Planck Institute for Psychiatry, Martinsried, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7624779" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials/drug effects ; Animals ; Base Sequence ; Cells, Cultured ; *Gene Expression Regulation ; *Genes, MHC Class I ; Hippocampus/cytology ; Histocompatibility Antigens Class I/biosynthesis/genetics ; Interferon-gamma/pharmacology ; Molecular Sequence Data ; Patch-Clamp Techniques ; Polymerase Chain Reaction ; Pyramidal Cells/cytology/*metabolism/physiology ; RNA, Messenger/genetics/metabolism ; Rats ; Rats, Inbred Lew ; Tetrodotoxin/pharmacology ; Transcription, Genetic ; beta 2-Microglobulin/biosynthesis/genetics
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  • 22
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-11-24
    Description: Opioid analgesia, the selective suppression of pain without effects on other sensations, also distinguishes between different types of pain: severe, persistent pain is potently inhibited by opioids, but they fail to cohceal the sensation of a pinprick. The cellular basis for this specificity was analyzed by means of patch-clamp experiments performed on fluorescently labeled nociceptive neurons (nociceptors) that innervate rat tooth pulp. Activation of the mu opioid receptor inhibited calcium channels on almost all small nociceptors but had minimal effect on large nociceptors. Somatostatin had the opposite specificity, preferentially inhibiting calcium channels on the large cells. Because persistent pain is mediated by slow-conducting, small nociceptors, opioids are thus likely to inhibit neurotransmitter release only at those primary synapses specialized for persistent pain.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Taddese, A -- Nah, S Y -- McCleskey, E W -- New York, N.Y. -- Science. 1995 Nov 24;270(5240):1366-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vollum Institute, Oregon Health Sciences University, Portland 97201, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481826" target="_blank"〉PubMed〈/a〉
    Keywords: Analgesics/*pharmacology ; Animals ; Calcium Channels/drug effects ; Cells, Cultured ; Dental Pulp/innervation ; Enkephalin, Ala(2)-MePhe(4)-Gly(5)- ; Enkephalins/*pharmacology ; Male ; Neurons, Afferent/*drug effects/physiology ; Neurotransmitter Agents/metabolism ; Nociceptors/*drug effects/physiology ; Patch-Clamp Techniques ; Presynaptic Terminals/drug effects/metabolism ; Rats ; Rats, Sprague-Dawley ; Receptors, Opioid, mu/*physiology ; Receptors, Somatostatin/physiology ; Sodium Channel Blockers ; Somatostatin/pharmacology
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  • 23
    Publication Date: 1995-04-21
    Description: Fibroblast growth factors (FGFs) require a polysaccharide cofactor, heparin or heparan sulfate (HS), for receptor binding and activation. To probe the molecular mechanism by which heparin or HS (heparin/HS) activates FGF, small nonsulfated oligosaccharides found within heparin/HS were assayed for activity. These synthetic and isomerically pure compounds can activate the FGF signaling pathway. The crystal structures of complexes between FGF and these heparin/HS oligosaccharides reveal several binding sites on FGF and constrain possible mechanisms by which heparin/HS can activate the FGF receptor. These studies establish a framework for the molecular design of compounds capable of modulating FGF activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ornitz, D M -- Herr, A B -- Nilsson, M -- Westman, J -- Svahn, C M -- Waksman, G -- CA60673/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Apr 21;268(5209):432-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Pharmacology, Washington University Medical School, St. Louis, MO 63110, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7536345" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Carbohydrate Sequence ; Cell Line ; Crystallization ; Fibroblast Growth Factor 1/chemistry/*metabolism ; Fibroblast Growth Factor 2/*metabolism ; Heparin/metabolism/*pharmacology ; Heparitin Sulfate/chemistry/*pharmacology ; Mitogens/pharmacology ; Molecular Sequence Data ; Oligosaccharides/chemistry/metabolism/*pharmacology ; Receptors, Fibroblast Growth Factor/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction
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  • 24
    Publication Date: 1995-01-06
    Description: Hematopoietic cells differentiate in steps marked by the acquisition or loss of specific phenotypic characteristics. Human bone marrow cells that were responsive to the early-acting cytokines Kit ligand and interleukin-3 were forced to a metabolic death. The subfraction remaining represented 1 in 10(5) bone marrow mononuclear cells, were determined to be quiescent by cell cycle analysis, and had a stem cell immunophenotype. The cells were highly enriched for long-term culture-initiating cells, were capable of secondary colony formation, and produced both myeloid and lymphoid progeny. Thus, this technically simple strategy led to the efficient purification of cells with characteristics of hematopoietic stem cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berardi, A C -- Wang, A -- Levine, J D -- Lopez, P -- Scadden, D T -- R01-HL44851/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1995 Jan 6;267(5194):104-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology/Oncology, Deaconess Hospital, Harvard Medical School, Boston, MA 02215.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7528940" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, CD/analysis ; Antigens, CD34 ; Base Sequence ; Cell Differentiation ; Cell Division ; Cell Separation/*methods ; Cells, Cultured ; Colony-Forming Units Assay ; DNA, Complementary/genetics ; Flow Cytometry ; Fluorouracil/pharmacology ; Hematopoietic Cell Growth Factors/pharmacology ; Hematopoietic Stem Cells/*cytology/drug effects ; Humans ; Immunophenotyping ; Interleukin-3/pharmacology ; Molecular Sequence Data ; Proto-Oncogene Proteins/analysis ; Proto-Oncogene Proteins c-kit ; Receptor Protein-Tyrosine Kinases/analysis ; Receptors, Colony-Stimulating Factor/analysis ; Stem Cell Factor
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  • 25
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-03-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Brien, C -- New York, N.Y. -- Science. 1995 Mar 3;267(5202):1263-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7871418" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; Cell Adhesion Molecules, Neuronal/chemistry/*physiology ; Cells, Cultured ; Neurites/*physiology ; Neurons/*cytology ; Receptors, Fibroblast Growth Factor/chemistry/*physiology ; *Signal Transduction
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  • 26
    Publication Date: 1995-10-20
    Description: Adenosine deaminase (ADA) deficiency results in severe combined immunodeficiency, the first genetic disorder treated by gene therapy. Two different retroviral vectors were used to transfer ex vivo the human ADA minigene into bone marrow cells and peripheral blood lymphocytes from two patients undergoing exogenous enzyme replacement therapy. After 2 years of treatment, long-term survival of T and B lymphocytes, marrow cells, and granulocytes expressing the transferred ADA gene was demonstrated and resulted in normalization of the immune repertoire and restoration of cellular and humoral immunity. After discontinuation of treatment, T lymphocytes, derived from transduced peripheral blood lymphocytes, were progressively replaced by marrow-derived T cells in both patients. These results indicate successful gene transfer into long-lasting progenitor cells, producing a functional multilineage progeny.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bordignon, C -- Notarangelo, L D -- Nobili, N -- Ferrari, G -- Casorati, G -- Panina, P -- Mazzolari, E -- Maggioni, D -- Rossi, C -- Servida, P -- Ugazio, A G -- Mavilio, F -- B.36/Telethon/Italy -- New York, N.Y. -- Science. 1995 Oct 20;270(5235):470-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Telethon Gene Therapy Program for Genetic Diseases, DIBIT, Istituto Scientifico H. S. Raffaele, Milan, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7570000" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Deaminase/administration & ; dosage/blood/*deficiency/*genetics/therapeutic use ; Antibody Formation ; Base Sequence ; Bone Marrow Cells ; Cells, Cultured ; Child, Preschool ; *Gene Transfer Techniques ; *Genetic Therapy ; Genetic Vectors ; Hematopoietic Stem Cell Transplantation ; *Hematopoietic Stem Cells/enzymology ; Humans ; Immunity, Cellular ; Lymphocyte Transfusion ; *Lymphocytes/enzymology/immunology ; Molecular Sequence Data ; Severe Combined Immunodeficiency/enzymology/genetics/immunology/*therapy ; T-Lymphocytes/enzymology/immunology
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  • 27
    Publication Date: 1995-09-15
    Description: Before the fusion of synaptic vesicles with the plasma membrane, a protein complex is thought to form between VAMP--an integral membrane protein of the vesicle--and two proteins associated with the plasma membrane, SNAP-25 and syntaxin. The yeast two-hybrid interaction cloning system has now been used to identify additional proteins from Aplysia that interact directly with VAMP. A 33-kilodalton membrane protein, termed VAP-33 (VAMP-associated protein of 33 kilodaltons), was identified whose corresponding messenger RNA was detected only in the central nervous system and the gill of Aplysia. Presynaptic injection of antibodies specific for VAP-33 inhibited synaptic transmission, which suggests that VAP-33 is required for the exocytosis of neurotransmitter.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Skehel, P A -- Martin, K C -- Kandel, E R -- Bartsch, D -- R37 MH45923-06/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1995 Sep 15;269(5230):1580-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, College of Physicians and Surgeons of Columbia University, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7667638" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Aplysia ; Base Sequence ; Carrier Proteins/chemistry/genetics/*physiology ; Cells, Cultured ; Central Nervous System/chemistry ; Cloning, Molecular ; Exocytosis ; Gills/innervation ; Membrane Proteins/chemistry/genetics/*metabolism/*physiology ; Molecular Sequence Data ; Molecular Weight ; Motor Neurons/physiology ; Nerve Tissue Proteins/*metabolism ; Neurons/*physiology ; Neurons, Afferent/physiology ; Neurotransmitter Agents/*metabolism ; R-SNARE Proteins ; *Synaptic Transmission ; Synaptic Vesicles/physiology ; *Vesicular Transport Proteins
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  • 28
    Publication Date: 1995-02-17
    Description: Although the myogenic regulator MyoD is expressed in proliferating myoblasts, differentiation of these cells is limited to the G0 phase of the cell cycle. Forced expression of cyclin D1, but not cyclins A, B, or E, inhibited the ability of MyoD to transactivate muscle-specific genes and correlated with phosphorylation of MyoD. Transfection of myoblasts with cyclin-dependent kinase (Cdk) inhibitors p21 and p16 augmented muscle-specific gene expression in cells maintained in high concentrations of serum, suggesting that an active cyclin-Cdk complex suppresses MyoD function in proliferating cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Skapek, S X -- Rhee, J -- Spicer, D B -- Lassar, A B -- 1F32AR08214-01A1/AR/NIAMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Feb 17;267(5200):1022-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7863328" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carrier Proteins/biosynthesis/physiology ; Cell Cycle ; Cell Differentiation ; Cell Line ; Cyclin D1 ; Cyclin-Dependent Kinase Inhibitor p16 ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclin-Dependent Kinases/*metabolism ; Cyclins/biosynthesis/*physiology ; Enzyme Activation ; Mice ; Muscle, Skeletal/*cytology/metabolism ; MyoD Protein/*antagonists & inhibitors/metabolism ; Oncogene Proteins/*physiology ; Phosphorylation ; Transcriptional Activation ; Transfection
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  • 29
    Publication Date: 1995-03-03
    Description: Many members of the cytokine receptor superfamily initiate intracellular signaling by activating members of the Jak family of tyrosine kinases. Activation of the same Jaks by multiple cytokines raises the question of how these cytokines activate distinct intracellular signaling pathways. Selection of particular substrates--the transcriptional activator Stat3 and protein tyrosine phosphatase PTP1D--that characterize responses to the ciliary neurotrophic factor-interleukin-6 cytokine family depended not on which Jak was activated, but was instead determined by specific tyrosine-based motifs in the receptor components--gp130 and LIFR--shared by these cytokines. Further, these tyrosine-based motifs were modular, because addition of a Stat3-specifying motif to another cytokine receptor, that for erythropoietin, caused it to activate Stat3 in a ligand-dependent fashion.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stahl, N -- Farruggella, T J -- Boulton, T G -- Zhong, Z -- Darnell, J E Jr -- Yancopoulos, G D -- New York, N.Y. -- Science. 1995 Mar 3;267(5202):1349-53.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals, Inc., Tarrytown, NY 10591.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7871433" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Antigens, CD ; Cell Line ; Cytokine Receptor gp130 ; DNA-Binding Proteins/*metabolism ; *Growth Inhibitors ; Interleukin-6/pharmacology ; Intracellular Signaling Peptides and Proteins ; Leukemia Inhibitory Factor ; *Lymphokines ; Membrane Glycoproteins/chemistry/*metabolism ; Molecular Sequence Data ; Phosphorylation ; Point Mutation ; Protein Tyrosine Phosphatase, Non-Receptor Type 11 ; Protein Tyrosine Phosphatase, Non-Receptor Type 6 ; Protein Tyrosine Phosphatases/metabolism ; Protein-Tyrosine Kinases/*metabolism ; Receptors, Cytokine/chemistry/*metabolism ; Receptors, OSM-LIF ; Recombinant Fusion Proteins/metabolism ; STAT3 Transcription Factor ; *Signal Transduction ; Trans-Activators/*metabolism ; Tyrosine/metabolism
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  • 30
    Publication Date: 1995-09-01
    Description: A mutated cyclin-dependent kinase 4 (CDK4) was identified as a tumor-specific antigen recognized by HLA-A2. 1-restricted autologous cytolytic T lymphocytes (CTLs) in a human melanoma. The mutated CDK4 allele was present in autologous cultured melanoma cells and metastasis tissue, but not in the patient's lymphocytes. The mutation, an arginine-to-cysteine exchange at residue 24, was part of the CDK4 peptide recognized by CTLs and prevented binding of the CDK4 inhibitor p16INK4a, but not of p21 or of p27KIP1. The same mutation was found in one additional melanoma among 28 melanomas analyzed. These results suggest that mutation of CDK4 can create a tumor-specific antigen and can disrupt the cell-cycle regulation exerted by the tumor suppressor p16INK4a.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wolfel, T -- Hauer, M -- Schneider, J -- Serrano, M -- Wolfel, C -- Klehmann-Hieb, E -- De Plaen, E -- Hankeln, T -- Meyer zum Buschenfelde, K H -- Beach, D -- New York, N.Y. -- Science. 1995 Sep 1;269(5228):1281-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medizinische Klinik und Poliklinik, Johannes Gutenberg-Universitat, Mainz, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7652577" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Carrier Proteins/metabolism/*pharmacology ; *Cell Cycle Proteins ; Cell Line ; Cloning, Molecular ; Cyclin-Dependent Kinase 4 ; Cyclin-Dependent Kinase Inhibitor p15 ; Cyclin-Dependent Kinase Inhibitor p16 ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclin-Dependent Kinase Inhibitor p27 ; *Cyclin-Dependent Kinases ; Cyclins/metabolism/pharmacology ; HLA-A2 Antigen/immunology ; Humans ; Melanoma/enzymology/*immunology ; Microtubule-Associated Proteins/metabolism/pharmacology ; Molecular Sequence Data ; Point Mutation ; Polymerase Chain Reaction ; Protein-Serine-Threonine Kinases/antagonists & ; inhibitors/genetics/*immunology/metabolism ; *Proto-Oncogene Proteins ; T-Lymphocytes, Cytotoxic/*immunology ; Transfection ; Tumor Cells, Cultured ; *Tumor Suppressor Proteins
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  • 31
    Publication Date: 1995-07-21
    Description: Huntington's disease (HD) is a dominant neurodegenerative disorder caused by expansion of a CAG repeat in the gene encoding huntingtin, a protein of unknown function. To distinguish between "loss of function" and "gain of function" models of HD, the murine HD homolog Hdh was inactivated by gene targeting. Mice heterozygous for Hdh inactivation were phenotypically normal, whereas homozygosity resulted in embryonic death. Homozygotes displayed abnormal gastrulation at embryonic day 7.5 and were resorbing by day 8.5. Thus, huntingtin is critical early in embryonic development, before the emergence of the nervous system. That Hdh inactivation does not mimic adult HD neuropathology suggests that the human disease involves a gain of function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duyao, M P -- Auerbach, A B -- Ryan, A -- Persichetti, F -- Barnes, G T -- McNeil, S M -- Ge, P -- Vonsattel, J P -- Gusella, J F -- Joyner, A L -- NS16367/NS/NINDS NIH HHS/ -- NS32765/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1995 Jul 21;269(5222):407-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Neurogenetics Unit, Massachusetts General Hospital, Charlestown 02129, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7618107" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Line ; Ectoderm/cytology ; Embryonic and Fetal Development ; Female ; Gene Targeting ; Genotype ; Heterozygote ; Homozygote ; Humans ; Huntington Disease/*genetics ; Male ; Mesoderm/cytology ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Nerve Tissue Proteins/*genetics/physiology ; Nuclear Proteins/*genetics/physiology ; Phenotype ; Stem Cells/metabolism
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  • 32
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-02-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Marx, J -- New York, N.Y. -- Science. 1995 Feb 17;267(5200):963-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7863339" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Cycle ; *Cell Differentiation ; Cells, Cultured ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclin-Dependent Kinases/antagonists & inhibitors ; Cyclins/genetics/*physiology ; Gene Expression Regulation, Developmental ; Mice ; Muscle, Skeletal/*cytology/embryology/metabolism
    Print ISSN: 0036-8075
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  • 33
    Publication Date: 1995-09-22
    Description: The N-methyl-D-aspartate (NMDA) receptor subserves synaptic glutamate-induced transmission and plasticity in central neurons. The yeast two-hybrid system was used to show that the cytoplasmic tails of NMDA receptor subunits interact with a prominent postsynaptic density protein PSD-95. The second PDZ domain in PSD-95 binds to the seven-amino acid, COOH-terminal domain containing the terminal tSXV motif (where S is serine, X is any amino acid, and V is valine) common to NR2 subunits and certain NR1 splice forms. Transcripts encoding PSD-95 are expressed in a pattern similar to that of NMDA receptors, and the NR2B subunit co-localizes with PSD-95 in cultured rat hippocampal neurons. The interaction of these proteins may affect the plasticity of excitatory synapses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kornau, H C -- Schenker, L T -- Kennedy, M B -- Seeburg, P H -- NS-28710/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1995 Sep 22;269(5231):1737-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Molecular Biology (ZMBH), University of Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7569905" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cells, Cultured ; Cytoplasm/chemistry ; Genes, Reporter ; Hippocampus/*metabolism ; Intracellular Signaling Peptides and Proteins ; Membrane Proteins ; Molecular Sequence Data ; Nerve Tissue Proteins/chemistry/genetics/*metabolism ; Neuronal Plasticity ; Neurons/*metabolism ; RNA Splicing ; Rats ; Receptors, N-Methyl-D-Aspartate/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction
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  • 34
    Publication Date: 1995-08-04
    Description: Combinations of antiretroviral drugs that prevent or delay the appearance of drug-resistant human immunodeficiency virus-type 1 (HIV-1) mutants are urgently required. Mutants resistant to 3'-azidothymidine (AZT, zidovudine) became phenotypically sensitive in vitro by mutation of residue 184 of viral reverse transcriptase to valine, which also induced resistance to (-)2'-deoxy-3'-thiacytidine (3TC). Furthermore, AZT-3TC coresistance was not observed during extensive in vitro selection with both drugs. In vivo AZT-3TC combination therapy resulted in a markedly greater decreased in serum HIV-1 RNA concentrations than treatment with AZT alone, even though valine-184 mutants rapidly emerged. Most samples assessed from the combination group remained AZT sensitive at 24 weeks of therapy, consistent with in vitro mutation studies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Larder, B A -- Kemp, S D -- Harrigan, P R -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1995 Aug 4;269(5224):696-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Antiviral Therapeutic Research Unit, Wellcome Research Laboratories, Beckenham, Kent, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7542804" target="_blank"〉PubMed〈/a〉
    Keywords: Antiviral Agents/*pharmacology/therapeutic use ; Base Sequence ; CD4 Lymphocyte Count ; Cell Line ; Codon ; Drug Resistance, Microbial ; Drug Therapy, Combination ; HIV Infections/*drug therapy/virology ; HIV Reverse Transcriptase ; HIV-1/*drug effects/enzymology/genetics/growth & development ; HeLa Cells ; Humans ; Lamivudine ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Point Mutation ; RNA, Viral/blood ; RNA-Directed DNA Polymerase/genetics ; *Reverse Transcriptase Inhibitors ; Serial Passage ; Zalcitabine/*analogs & derivatives/pharmacology/therapeutic use ; Zidovudine/*pharmacology/therapeutic use
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  • 35
    Publication Date: 1995-03-24
    Description: Gap junctions are made up of connexin proteins, which comprise a multigene family in mammals. Targeted mutagenesis of connexin43 (Cx43), one of the most prevalent connexin proteins, showed that its absence was compatible with survival of mouse embryos to term, even though mutant cell lines showed reduced dye coupling in vitro. However, mutant embryos died at birth, as a result of a failure in pulmonary gas exchange caused by a swelling and blockage of the right ventricular outflow tract from the heart. This finding suggests that Cx43 plays an essential role in heart development but that there is functional compensation among connexins in other parts of the developing fetus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reaume, A G -- de Sousa, P A -- Kulkarni, S -- Langille, B L -- Zhu, D -- Davies, T C -- Juneja, S C -- Kidder, G M -- Rossant, J -- New York, N.Y. -- Science. 1995 Mar 24;267(5205):1831-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7892609" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Connexin 43/*genetics/*physiology ; Embryo, Mammalian/cytology ; Heart Defects, Congenital/*genetics/pathology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Respiratory Transport/genetics ; Stem Cells ; Ventricular Outflow Obstruction/congenital/genetics
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  • 36
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-11-17
    Description: Cadherins mediate cell adhesion and are essential for normal development. Embryonic stem cells were transfected with a dominant negative N-cadherin mutant (NCAD delta) under the control of promoters active in small intestinal epithelial cells and then introduced into C57BL/6 mouse blastocysts. Analysis of adult chimeric mice revealed that expression of NCAD delta along the entire crypt-villus axis, but not in the villus epithelium alone, produced an inflammatory bowel disease resembling Crohn's disease. NCAD delta perturbed proliferation, migration, and death programs in crypts, which lead to adenomas. This model provides insights about cadherin function in an adult organ and the factors underlying inflammatory bowel disease and intestinal neoplasia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hermiston, M L -- Gordon, J I -- DK30292/DK/NIDDK NIH HHS/ -- DK39760/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1995 Nov 17;270(5239):1203-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology and Pharmacology, 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/7502046" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoma/*etiology/metabolism/pathology ; Animals ; Apoptosis ; Cadherins/biosynthesis/genetics/*physiology ; Cell Division ; Cell Line ; Cell Movement ; Chimera ; Crohn Disease/etiology/immunology/metabolism/pathology ; Immunity, Mucosal ; Inflammatory Bowel Diseases/*etiology/immunology/metabolism/pathology ; Intestinal Mucosa/immunology/metabolism/*pathology ; Intestinal Neoplasms/*etiology/metabolism/pathology ; Intestine, Small/pathology ; Jejunum/pathology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Mutation ; Stem Cells ; Transfection
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  • 37
    Publication Date: 1995-12-22
    Description: The mitogen-activated protein kinase (MAPK) pathway is a conserved eukaryotic signaling module that converts receptor signals into various outputs. MAPK is activated through phosphorylation by MAPK kinase (MAPKK), which is first activated by MAPKK kinase (MAPKKK). A genetic selection based on a MAPK pathway in yeast was used to identify a mouse protein kinase (TAK1) distinct from other members of the MAPKKK family. TAK1 was shown to participate in regulation of transcription by transforming growth factor-beta (TGF-beta). Furthermore, kinase activity of TAK1 was stimulated in response to TGF-beta and bone morphogenetic protein. These results suggest that TAK1 functions as a mediator in the signaling pathway of TGF-beta superfamily members.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamaguchi, K -- Shirakabe, K -- Shibuya, H -- Irie, K -- Oishi, I -- Ueno, N -- Taniguchi, T -- Nishida, E -- Matsumoto, K -- New York, N.Y. -- Science. 1995 Dec 22;270(5244):2008-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Faculty of Science, Nagoya University, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8533096" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Bone Morphogenetic Proteins ; Cell Line ; Cloning, Molecular ; Epidermal Growth Factor/pharmacology ; *Gene Expression Regulation ; Genes, Reporter ; *MAP Kinase Kinase Kinases ; Mice ; Molecular Sequence Data ; Protein-Serine-Threonine Kinases/*metabolism ; Proteins/pharmacology ; Saccharomyces cerevisiae/genetics ; *Signal Transduction ; Transfection ; Transforming Growth Factor beta/*pharmacology
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  • 38
    Publication Date: 1995-11-17
    Description: Strategies for the treatment of human immunodeficiency virus-type 1 (HIV-1) infection must contend with the obstacle of drug resistance. HIV-1 nucleocapsid protein zinc fingers are prime antiviral targets because they are mutationally intolerant and are required both for acute infection and virion assembly. Nontoxic disulfide-substituted benzamides were identified that attack the zinc fingers, inactivate cell-free virions, inhibit acute and chronic infections, and exhibit broad antiretroviral activity. The compounds were highly synergistic with other antiviral agents, and resistant mutants have not been detected. Zinc finger-reactive compounds may offer an anti-HIV strategy that restricts drug-resistance development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rice, W G -- Supko, J G -- Malspeis, L -- Buckheit, R W Jr -- Clanton, D -- Bu, M -- Graham, L -- Schaeffer, C A -- Turpin, J A -- Domagala, J -- Gogliotti, R -- Bader, J P -- Halliday, S M -- Coren, L -- Sowder, R C 2nd -- Arthur, L O -- Henderson, L E -- New York, N.Y. -- Science. 1995 Nov 17;270(5239):1194-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Antiviral Drug Mechanisms, PRI/DynCorp., National Cancer Institute-Frederick Cancer Research and Development Center, MD 21702, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7502043" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antiviral Agents/chemistry/pharmacokinetics/*pharmacology ; Benzamides/chemistry/pharmacokinetics/*pharmacology ; Biological Availability ; Capsid/chemistry/*metabolism ; *Capsid Proteins ; Cell Line ; Disulfides/chemistry/pharmacokinetics/*pharmacology ; Drug Resistance, Microbial ; Drug Synergism ; Gene Products, gag/*antagonists & inhibitors/chemistry ; HIV-1/*drug effects/physiology ; Humans ; Male ; Mice ; Molecular Sequence Data ; *Viral Proteins ; Zinc Fingers/*drug effects ; gag Gene Products, Human Immunodeficiency Virus
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  • 39
    Publication Date: 1995-02-10
    Description: Integrin receptors mediate cell adhesion, signal transduction, and cytoskeletal organization. How a single transmembrane receptor can fulfill multiple functions was clarified by comparing roles of receptor occupancy and aggregation. Integrin occupancy by monovalent ligand induced receptor redistribution, but minimal tyrosine phosphorylation signaling or cytoskeletal protein redistribution. Aggregation of integrins by noninhibitory monoclonal antibodies on beads induced intracellular accumulations of pp125FAK and tensin, as well as phosphorylation, but no accumulation of other cytoskeletal proteins such as talin. Combining antibody-mediated clustering with monovalent ligand occupancy induced accumulation of seven cytoskeletal proteins, including alpha-actinin, talin, and F-actin, thereby mimicking multivalent interactions with fibronectin or polyvalent peptides. Integrins therefore mediate a complex repertoire of functions through the distinct effects of receptor aggregation, receptor occupancy, or both together.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miyamoto, S -- Akiyama, S K -- Yamada, K M -- New York, N.Y. -- Science. 1995 Feb 10;267(5199):883-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Developmental Biology, National Institute of Dental Research, National Institutes of Health, Bethesda, MD 20892-4370.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7846531" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal ; Cell Adhesion Molecules/metabolism ; Cell Membrane/*metabolism ; Cells, Cultured ; Cytoskeletal Proteins/*metabolism ; Focal Adhesion Kinase 1 ; Focal Adhesion Protein-Tyrosine Kinases ; Humans ; Integrins/*physiology ; Ligands ; Microfilament Proteins/metabolism ; Molecular Sequence Data ; Oligopeptides/metabolism ; Phosphorylation ; Protein-Tyrosine Kinases/metabolism ; Signal Transduction ; Tyrosine/metabolism
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  • 40
    Publication Date: 1995-06-09
    Description: Fluorescent probes offer insight into the highly localized and rapid molecular events that underlie cell function. However, methods are required that can efficiently transform the limited signals from such probes into high-resolution images. An algorithm has now been developed that produces highly accurate images of fluorescent probe distribution inside cells with minimal light exposure and a conventional light microscope. This method provides resolution nearly four times greater than that currently available from any fluorescence microscope and was used to study several biological problems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carrington, W A -- Lynch, R M -- Moore, E D -- Isenberg, G -- Fogarty, K E -- Fay, F S -- New York, N.Y. -- Science. 1995 Jun 9;268(5216):1483-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Molecular Medicine, 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/7770772" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; Calcium Channels/analysis ; Cell Line ; Cell Physiological Phenomena ; Cells/*chemistry/*ultrastructure ; Cells, Cultured ; Fluorescence ; *Fluorescent Dyes ; Guinea Pigs ; Hexokinase/analysis ; *Image Processing, Computer-Assisted ; Light ; Microscopy, Fluorescence ; Microtubules/ultrastructure ; Muscle Proteins/analysis ; Muscle, Smooth/cytology/enzymology ; Rats ; Ryanodine Receptor Calcium Release Channel
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  • 41
    Publication Date: 1995-04-21
    Description: Sulfonylureas are a class of drugs widely used to promote insulin secretion in the treatment of non-insulin-dependent diabetes mellitus. These drugs interact with the sulfonylurea receptor of pancreatic beta cells and inhibit the conductance of adenosine triphosphate (ATP)-dependent potassium (KATP) channels. Cloning of complementary DNAs for the high-affinity sulfonylurea receptor indicates that it is a member of the ATP-binding cassette or traffic ATPase superfamily with multiple membrane-spanning domains and two nucleotide binding folds. The results suggest that the sulfonylurea receptor may sense changes in ATP and ADP concentration, affect KATP channel activity, and thereby modulate insulin release.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aguilar-Bryan, L -- Nichols, C G -- Wechsler, S W -- Clement, J P 4th -- Boyd, A E 3rd -- Gonzalez, G -- Herrera-Sosa, H -- Nguy, K -- Bryan, J -- Nelson, D A -- DK41898/DK/NIDDK NIH HHS/ -- DK44311/DK/NIDDK NIH HHS/ -- HL45742/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1995 Apr 21;268(5209):423-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, 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/7716547" target="_blank"〉PubMed〈/a〉
    Keywords: *ATP-Binding Cassette Transporters ; Adenosine Diphosphate/metabolism ; Adenosine Triphosphate/metabolism ; Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Cloning, Molecular ; Cricetinae ; Insulin/*secretion ; Islets of Langerhans/*metabolism ; Molecular Sequence Data ; Phosphorylation ; Potassium Channels/chemistry/*genetics/metabolism ; *Potassium Channels, Inwardly Rectifying ; Protein Folding ; Protein Structure, Secondary ; Receptors, Drug/chemistry/*genetics/metabolism ; Sequence Alignment ; Sulfonylurea Compounds/metabolism ; Sulfonylurea Receptors ; Transfection ; Tumor Cells, Cultured
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  • 42
    Publication Date: 1995-12-15
    Description: The relative locations of several chromosomes within wheel-shaped prometaphase chromosome rosettes of human fibroblasts and HeLa cells were determined with fluorescence hybridization. Homologs were consistently positioned on opposite sides of the rosette, which suggests that chromosomes are separated into two haploid sets, each derived from one parent. The relative locations of chromosomes on the rosette were mapped by dual hybridizations. The data suggest that the chromosome orders within the two haploid sets are antiparallel. This chromosome arrangement in human cells appears to be both independent of cell type- and species-specific and may influence chromosome topology throughout the cell cycle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nagele, R -- Freeman, T -- McMorrow, L -- Lee, H Y -- New York, N.Y. -- Science. 1995 Dec 15;270(5243):1831-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, University of Medicine and Dentistry of New Jersey, School of Osteopathic Medicine, Stratford 08084, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8525379" target="_blank"〉PubMed〈/a〉
    Keywords: Cells, Cultured ; Chromosomes/*physiology/ultrastructure ; DNA Probes ; Fibroblasts/ultrastructure ; HeLa Cells ; Humans ; In Situ Hybridization, Fluorescence ; Metaphase/genetics/*physiology
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  • 43
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-09-15
    Description: Endogenously synthesized antigenic determinants are generally presented on major histocompatibility complex (MHC) class I molecules, whereas exogenous determinants are presented by MHC class II molecules. Here, it is shown that exogenous antigens chaperoned by a heat shock protein can be channeled into the endogenous pathway, presented by MHC class I molecules, and recognized by CD8+ T lymphocytes. This pathway is functional only in a subset of macrophages among the cell types tested. These observations provide a basis for the tumor-specific and virus-specific immunogenicity of cognate heat shock protein preparations and offer a mechanism for the classical phenomenon of cross-priming.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Suto, R -- Srivastava, P K -- CA44786/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Sep 15;269(5230):1585-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Fordham University, Bronx, NY 10458, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7545313" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigen Presentation ; Antigens, Neoplasm/*immunology ; Antigens, Viral/*immunology ; Cells, Cultured ; Chaperonins/*immunology ; Cytotoxicity, Immunologic ; Epitopes ; Histocompatibility Antigens Class I/immunology ; Macrophages/*immunology ; Macrophages, Peritoneal/immunology ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Peptides/immunology ; T-Lymphocytes, Cytotoxic/*immunology ; Transfection ; Tumor Necrosis Factor-alpha/metabolism ; Vesicular stomatitis Indiana virus/*immunology
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  • 44
    Publication Date: 1995-04-14
    Description: One Ras-dependent protein kinase cascade leading from growth factor receptors to the ERK (extracellular signal-regulated kinases) subgroup of mitogen-activated protein kinases (MAPKs) is dependent on the protein kinase Raf-1, which activates the MEK (MAPK or ERK kinase) dual specificity kinases. A second protein kinase cascade leading to activation of the Jun kinases (JNKs) is dependent on MEKK (MEK kinase). A dual-specificity kinase that activates JNK, named JNKK, was identified that functions between MEKK and JNK. JNKK activated the JNKs but did not activate the ERKs and was unresponsive to Raf-1 in transfected HeLa cells. JNKK also activated another MAPK, p38 (Mpk2; the mammalian homolog of HOG1 from yeast), whose activity is regulated similarly to that of the JNKs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, A -- Minden, A -- Martinetto, H -- Claret, F X -- Lange-Carter, C -- Mercurio, F -- Johnson, G L -- Karin, M -- New York, N.Y. -- Science. 1995 Apr 14;268(5208):286-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of California-San Diego School of Medicine, La Jolla 92093-0636, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7716521" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Cell Line ; Enzyme Activation ; Epidermal Growth Factor/pharmacology ; HeLa Cells ; Humans ; JNK Mitogen-Activated Protein Kinases ; MAP Kinase Kinase 4 ; *MAP Kinase Kinase Kinase 1 ; *Mitogen-Activated Protein Kinase Kinases ; *Mitogen-Activated Protein Kinases ; Molecular Sequence Data ; Phosphorylation ; Protein Kinases/chemistry/*metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-raf ; Recombinant Fusion Proteins/metabolism ; Substrate Specificity ; Transfection ; p38 Mitogen-Activated Protein Kinases
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  • 45
    Publication Date: 1995-12-08
    Description: A stepwise approach for reducing the size of a polypeptide hormone, atrial natriuretic peptide (ANP), from 28 residues to 15 while retaining high biopotency is described. Systematic structural and functional analysis identified a discontinuous functional epitope for receptor binding and activation, most of which was placed onto a smaller ring (Cys6 to Cys17) that was created by repositioning the ANP native disulfide bond (Cys7 to Cys23). High affinity was subsequently restored by optimizing the remaining noncritical residues by means of phage display. Residues that flanked the mini-ring structure were then deleted in stages, and affinity losses were rectified by additional phage-sorting experiments. Thus, structural and functional data on hormones, coupled with phage display methods, can be used to shrink the hormones to moieties more amendable to small-molecule design.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, B -- Tom, J Y -- Oare, D -- Yen, R -- Fairbrother, W J -- Wells, J A -- Cunningham, B C -- New York, N.Y. -- Science. 1995 Dec 8;270(5242):1657-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Protein Engineering, Genenteeh, South San Francisco, CA 94080, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7502074" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Atrial Natriuretic Factor/*chemistry/genetics/immunology/metabolism ; Base Sequence ; Cell Line ; Cyclic GMP/metabolism ; Epitopes ; Guanylate Cyclase/metabolism ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Protein Conformation ; *Protein Engineering ; Receptors, Atrial Natriuretic Factor/metabolism
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  • 46
    Publication Date: 1995-07-28
    Description: T cell hybridomas require the immediate-early gene NGFI-B (nur77) for T cell receptor (TCR)-mediated apoptosis, a model for negative selection of self-reactive T cells. TCR-mediated death was examined in mice bearing an NGFI-B loss-of-function mutation, either by administration of antibodies to CD3 (anti-CD3) or in two well-characterized transgenic models expressing self-reactive TCRs. Both the extent and the rate of thymocyte death were unimpaired. Anti-CD3-induced death was normal in CD4+ peripheral T cells, in which death is mediated predominantly by the Fas signaling pathway. Thus, no unique requirement for NGFI-B is observed for thymic or peripheral T cell death.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, S L -- Wesselschmidt, R L -- Linette, G P -- Kanagawa, O -- Russell, J H -- Milbrandt, J -- P01 CA49712/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Jul 28;269(5223):532-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, 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/7624775" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies ; Antigens, CD3/immunology/physiology ; *Apoptosis ; Cells, Cultured ; Clonal Deletion ; Crosses, Genetic ; DNA-Binding Proteins/genetics/*physiology ; Female ; Gene Targeting ; Hybridomas ; Male ; Mice ; Mice, Transgenic ; Nuclear Receptor Subfamily 4, Group A, Member 1 ; Receptors, Antigen, T-Cell, alpha-beta/*physiology ; Receptors, Cytoplasmic and Nuclear ; Receptors, Steroid/genetics/*physiology ; Stem Cells ; T-Lymphocyte Subsets/cytology ; T-Lymphocytes/*cytology/immunology ; Thymus Gland/cytology ; Transcription Factors/genetics/*physiology
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  • 47
    Publication Date: 1995-09-15
    Description: Cyclin-dependent kinases (CDKs) are activated by CDC25 phosphatases, which remove inhibitory phosphate from tyrosine and threonine residues. In human cells, CDC25 proteins are encoded by a multigene family, consisting of CDC25A, CDC25B, and CDC25C. In rodent cells, human CDC25A or CDC25B but not CDC25C phosphatases cooperate with either Ha-RASG12V or loss of RB1 in oncogenic focus formation. Such transformants were highly aneuploid, grew in soft agar, and formed high-grade tumors in nude mice. Overexpression of CDC25B was detected in 32 percent of human primary breast cancers tested. The CDC25 phosphatases may contribute to the development of human cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Galaktionov, K -- Lee, A K -- Eckstein, J -- Draetta, G -- Meckler, J -- Loda, M -- Beach, D -- New York, N.Y. -- Science. 1995 Sep 15;269(5230):1575-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Cold Spring Harbor Laboratory, NY 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7667636" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast Neoplasms/genetics ; Cell Cycle Proteins/*genetics ; Cell Division ; *Cell Transformation, Neoplastic ; Cells, Cultured ; Gene Expression ; Genes, Retinoblastoma ; Genes, p53 ; Genes, ras ; Humans ; In Situ Hybridization ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; *Multigene Family ; Neoplasm Transplantation ; *Oncogenes ; Phosphoprotein Phosphatases/*genetics ; Prognosis ; Transfection ; Tumor Cells, Cultured ; cdc25 Phosphatases
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  • 48
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-04-21
    Description: Fas is a cell surface receptor that controls a poorly understood signal transduction pathway that leads to cell death by means of apoptosis. A protein tyrosine phosphatase, FAP-1, capable of interacting with the cytosolic domain of Fas, was identified. The carboxyl terminal 15 amino acids of Fas are necessary and sufficient for interaction with FAP-1. FAP-1 expression is highest in tissues and cell lines that are relatively resistant to Fas-mediated cytotoxicity. Gene transfer-mediated elevations in FAP-1 partially abolished Fas-induced apoptosis in a T cell line. These findings are consistent with an inhibitory effect of FAP-1 on Fas signal transduction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sato, T -- Irie, S -- Kitada, S -- Reed, J C -- New York, N.Y. -- Science. 1995 Apr 21;268(5209):411-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉La Jolla Cancer Research Foundation, Oncogene and Tumor Suppressor Gene Program, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7536343" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, CD95 ; Antigens, Surface/genetics/*metabolism ; Apoptosis ; Base Sequence ; Cell Line ; Cloning, Molecular ; DNA, Complementary/genetics ; Humans ; Mice ; Molecular Sequence Data ; Protein Tyrosine Phosphatases/genetics/*metabolism ; Receptors, Cell Surface/genetics/*metabolism ; Recombinant Fusion Proteins/metabolism ; Signal Transduction ; T-Lymphocytes/cytology
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  • 49
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-01-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Linskens, M H -- Harley, C B -- West, M D -- Campisi, J -- Hayflick, L -- New York, N.Y. -- Science. 1995 Jan 6;267(5194):17.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7848496" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; *Cell Aging ; Cell Division ; Cells, Cultured ; Humans ; Telomere/physiology
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  • 50
    Publication Date: 1995-01-06
    Description: Specificity of protein kinases and phosphatases may be achieved through compartmentalization with preferred substrates. In neurons, adenosine 3', 5'-monophosphate (cAMP)-dependent protein kinase (PKA) is localized at postsynaptic densities by association of its regulatory subunit with an A kinase anchor protein, AKAP79. Interaction cloning experiments demonstrated that AKAP79 also binds protein phosphatase 2B, or calcineurin (CaN). A ternary complex of PKA, AKAP, and CaN was isolated from bovine brain, and colocalization of the kinase and the phosphatase was established in neurites of cultured hippocampal neurons. The putative CaN-binding domain of AKAP79 is similar to that of the immunophilin FKBP-12, and AKAP79 inhibited CaN phosphatase activity. These results suggest that both PKA and CaN are targeted to subcellular sites by association with a common anchor protein and thereby regulate the phosphorylation state of key neuronal substrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coghlan, V M -- Perrino, B A -- Howard, M -- Langeberg, L K -- Hicks, J B -- Gallatin, W M -- Scott, J D -- DK09059/DK/NIDDK NIH HHS/ -- GM48231/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Jan 6;267(5194):108-11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vollum Institute, Oregon Health Sciences University, Portland 97201.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7528941" target="_blank"〉PubMed〈/a〉
    Keywords: A Kinase Anchor Proteins ; *Adaptor Proteins, Signal Transducing ; Amino Acid Sequence ; Animals ; Binding Sites ; *Brain Chemistry ; Calcineurin ; Calmodulin-Binding Proteins/analysis/antagonists & inhibitors/*metabolism ; Carrier Proteins/analysis ; Cattle ; Cells, Cultured ; Cyclic AMP-Dependent Protein Kinases/analysis/*metabolism ; Hippocampus/chemistry ; Molecular Sequence Data ; Neurites/chemistry ; Phosphoprotein Phosphatases/analysis/antagonists & inhibitors/*metabolism ; Phosphorylation ; Proteins/*metabolism/pharmacology ; Rats ; Recombinant Proteins/pharmacology ; Tacrolimus/pharmacology
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  • 51
    Publication Date: 1995-10-13
    Description: Glucocorticoids are among the most potent anti-inflammatory and immunosuppressive agents. They inhibit synthesis of almost all known cytokines and of several cell surface molecules required for immune function, but the mechanism underlying this activity has been unclear. Here it is shown that glucocorticoids are potent inhibitors of nuclear factor kappa B (NF-kappa B) activation in mice and cultured cells. This inhibition is mediated by induction of the I kappa B alpha inhibitory protein, which traps activated NF-kappa B in inactive cytoplasmic complexes. Because NF-kappa B activates many immunoregulatory genes in response to pro-inflammatory stimuli, the inhibition of its activity can be a major component of the anti-inflammatory activity of glucocorticoids.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Auphan, N -- DiDonato, J A -- Rosette, C -- Helmberg, A -- Karin, M -- New York, N.Y. -- Science. 1995 Oct 13;270(5234):286-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, School of Medicine, University of California, San Diego, La Jolla 92093-0636, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7569976" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Inflammatory Agents/*pharmacology ; Cell Line ; Cell Nucleus/metabolism ; Cytoplasm/metabolism ; DNA-Binding Proteins/*biosynthesis ; Dexamethasone/*pharmacology ; Humans ; Hybridomas ; *I-kappa B Proteins ; *Immunosuppression ; Interleukin-2/pharmacology ; Lymph Nodes/drug effects/metabolism ; Mice ; NF-kappa B/*antagonists & inhibitors/metabolism ; Receptors, Glucocorticoid/metabolism ; T-Lymphocytes/drug effects/*metabolism ; Tetradecanoylphorbol Acetate/pharmacology ; Transcription Factor AP-1/metabolism ; Transcription Factor RelA ; Tumor Cells, Cultured
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  • 52
    Publication Date: 1995-10-13
    Description: Glucocorticoids are potent immunosuppressive drugs, but their mechanism is poorly understood. Nuclear factor kappa B (NF-kappa B), a regulator of immune system and inflammation genes, may be a target for glucocorticoid-mediated immunosuppression. The activation of NF-kappa B involves the targeted degradation of its cytoplasmic inhibitor, I kappa B alpha, and the translocation of NF-kappa B to the nucleus. Here it is shown that the synthetic glucocorticoid dexamethasone induces the transcription of the I kappa B alpha gene, which results in an increased rate of I kappa B alpha protein synthesis. Stimulation by tumor necrosis factor causes the release of NF-kappa B from I kappa B alpha. However, in the presence of dexamethasone this newly released NF-kappa B quickly reassociates with newly synthesized I kappa B alpha, thus markedly reducing the amount of NF-kappa B that translocates to the nucleus. This decrease in nuclear NF-kappa B is predicted to markedly decrease cytokine secretion and thus effectively block the activation of the immune system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Scheinman, R I -- Cogswell, P C -- Lofquist, A K -- Baldwin, A S Jr -- AI35098/AI/NIAID NIH HHS/ -- CA52515/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Oct 13;270(5234):283-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill 27599, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7569975" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cell Nucleus/metabolism ; DNA-Binding Proteins/genetics/*metabolism ; Dexamethasone/*pharmacology ; HeLa Cells ; Humans ; *I-kappa B Proteins ; *Immunosuppression ; Immunosuppressive Agents/*pharmacology ; Lipopolysaccharides/pharmacology ; NF-kappa B/genetics/*metabolism ; RNA, Messenger/genetics/metabolism ; Signal Transduction/drug effects ; Transcription Factor RelA ; Transcription, Genetic/drug effects ; Tumor Necrosis Factor-alpha/pharmacology
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  • 53
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-12-15
    Description: Coordinate activation of transcription by multiple enhancer binding factors is essential for the regulation of pattern formation during development of Drosophila melanogaster. Cell-free transcription reactions are described that recapitulate transcriptional synergism directed by the Drosophila developmental regulators Bicoid (BCD) and Hunchback (HB). Within the basal transcription factor complex TFIID, two specific targets, TAFII110 and TAFII60, served as coactivators to mediate transcriptional activation by these two enhancer binding proteins. A quadruple complex containing TATA binding protein (TBP), TAFII250, TAFII110, and TAFII60 mediated transcriptional synergism by BCD and HB, whereas triple TBP-TAFII complexes lacking one or the other target coactivator failed to support synergistic activation. Deoxyribonuclease I footprint protection experiments revealed that an integral step leading to transcriptional synergism involves the recruitment of TBP-TAFII complexes to the promoter by way of multivalent contacts between activators and selected TAFIIs. Thus, the concerted action of multiple regulators with different coactivators helps to establish the pattern and level of segmentation gene transcription during Drosophila development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sauer, F -- Hansen, S K -- Tjian, R -- New York, N.Y. -- Science. 1995 Dec 15;270(5243):1783-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8525367" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; DNA-Binding Proteins/metabolism ; *Drosophila Proteins ; Drosophila melanogaster/embryology/genetics ; Enhancer Elements, Genetic ; *Gene Expression Regulation, Developmental ; *Homeodomain Proteins ; Insect Hormones/*genetics ; Juvenile Hormones/*genetics ; Protein Binding ; Recombinant Proteins ; TATA Box ; TATA-Box Binding Protein ; *Trans-Activators ; Transcription Factor TFIID ; Transcription Factors/*metabolism ; *Transcriptional Activation
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  • 54
    Publication Date: 1995-03-03
    Description: Cell cycle checkpoints enhance genetic fidelity by causing arrest at specific stages of the cell cycle when previous events have not been completed. The tumor suppressor p53 has been implicated in a G1 checkpoint. To investigate whether p53 also participates in a mitotic checkpoint, cultured fibroblasts from p53-deficient mouse embryos were exposed to spindle inhibitors. The fibroblasts underwent multiple rounds of DNA synthesis without completing chromosome segregation, thus forming tetraploid and octaploid cells. Deficiency of p53 was also associated with the development of tetraploidy in vivo. These results suggest that murine p53 is a component of a spindle checkpoint that ensures the maintenance of diploidy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cross, S M -- Sanchez, C A -- Morgan, C A -- Schimke, M K -- Ramel, S -- Idzerda, R L -- Raskind, W H -- Reid, B J -- R01CA55814/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Mar 3;267(5202):1353-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Washington, Seattle 98195.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7871434" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Cycle ; Cells, Cultured ; DNA/biosynthesis ; Demecolcine/pharmacology ; Diploidy ; Female ; Genes, p53 ; Male ; Mice ; *Mitosis ; Nocodazole/pharmacology ; Ploidies ; Spindle Apparatus/*physiology ; Tumor Suppressor Protein p53/*physiology
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  • 55
    Publication Date: 1995-12-08
    Description: Pineal serotonin N-acetyltransferase (arylalkylamine N-acetyltransferase, or AA-NAT) generates the large circadian rhythm in melatonin, the hormone that coordinates daily and seasonal physiology in some mammals. Complementary DNA encoding ovine AA-NAT was cloned. The abundance of AA-NAT messenger RNA (mRNA) during the day was high in the ovine pineal gland and somewhat lower in retina. AA-NAT mRNA was found unexpectedly in the pituitary gland and in some brain regions. The night-to-day ratio of ovine pineal AA-NAT mRNA is less than 2. In contrast, the ratio exceeds 150 in rats. AA-NAT represents a family within a large superfamily of acetyltransferases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coon, S L -- Roseboom, P H -- Baler, R -- Weller, J L -- Namboodiri, M A -- Koonin, E V -- Klein, D C -- New York, N.Y. -- Science. 1995 Dec 8;270(5242):1681-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section on Neuroendocrinology, National Institute of Child Health and Human Development, 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/7502081" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Arylamine N-Acetyltransferase/*genetics/metabolism ; Brain/metabolism ; Cell Line ; Circadian Rhythm ; *Cloning, Molecular ; DNA, Complementary/genetics ; Molecular Sequence Data ; Pineal Gland/*enzymology/metabolism ; Pituitary Gland/metabolism ; RNA, Messenger/genetics/metabolism ; Rats ; Retina/metabolism ; Sequence Alignment ; Sheep ; Transfection
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  • 56
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kazantsev, A -- Sancar, A -- 32833/PHS HHS/ -- New York, N.Y. -- Science. 1995 Nov 10;270(5238):1003-4; author reply 1005-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481776" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; Cell-Free System ; DNA Damage ; *DNA Repair ; HeLa Cells ; Humans ; Intracellular Signaling Peptides and Proteins ; Proliferating Cell Nuclear Antigen/metabolism ; Proteins/metabolism/*pharmacology
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  • 57
    Publication Date: 1995-11-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kearsey, J M -- Shivji, M K -- Hall, P A -- Wood, R D -- New York, N.Y. -- Science. 1995 Nov 10;270(5238):1004-5; author reply 1005-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481777" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line ; DNA Damage ; DNA Repair/*drug effects ; Genes, p53 ; Humans ; Intracellular Signaling Peptides and Proteins ; Proliferating Cell Nuclear Antigen/metabolism ; Proteins/metabolism/*pharmacology ; Recombinant Fusion Proteins/pharmacology
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  • 58
    Publication Date: 1995-06-16
    Description: Long-term potentiation has previously been studied with electrophysiological techniques that do not readily separate presynaptic and postsynaptic contributions. Changes in exocytotic-endocytotic cycling have now been monitored at synapses between cultured rat hippocampal neurons by measuring the differential uptake of antibodies that recognize the intraluminal domain of the synaptic vesicle protein synaptotagmin. Vesicular cycling increased markedly during glutamate-induced long-term potentiation. The degree of potentiation was heterogeneous, appearing greater at synapses at which the initial extent of vesicular turnover was low. Thus, changes in presynaptic activity were visualized directly and the spatial distribution of potentiation could be determined at the level of single synaptic boutons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malgaroli, A -- Ting, A E -- Wendland, B -- Bergamaschi, A -- Villa, A -- Tsien, R W -- Scheller, R H -- D.016/Telethon/Italy -- New York, N.Y. -- Science. 1995 Jun 16;268(5217):1624-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Scientific Institute San Raffaele, Milan, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7777862" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Calcium-Binding Proteins ; Cells, Cultured ; Glutamic Acid/pharmacology ; Hippocampus/*cytology/physiology ; Long-Term Potentiation/drug effects/*physiology ; Membrane Glycoproteins/analysis/immunology ; Molecular Sequence Data ; Nerve Tissue Proteins/analysis/immunology ; Neurons/*physiology ; Patch-Clamp Techniques ; Potassium/pharmacology ; Presynaptic Terminals/drug effects/*physiology ; Pyrroles/pharmacology ; Rats ; Receptors, N-Methyl-D-Aspartate/physiology ; *Synaptic Transmission/drug effects ; Synaptic Vesicles/chemistry/metabolism ; Synaptotagmins
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  • 59
    Publication Date: 1995-02-17
    Description: Terminal differentiation is coupled to withdrawal from the cell cycle. The cyclin-dependent kinase inhibitor (CKI) p21Cip1 is transcriptionally regulated by p53 and can induce growth arrest. CKIs are therefore potential mediators of developmental control of cell proliferation. The expression pattern of mouse p21 correlated with terminal differentiation of multiple cell lineages including skeletal muscle, cartilage, skin, and nasal epithelium in a p53-independent manner. Although the muscle-specific transcription factor MyoD is sufficient to activate p21 expression in 10T1/2 cells, p21 was expressed in myogenic cells of mice lacking the genes encoding MyoD and myogenin, demonstrating that p21 expression does not require these transcription factors. The p21 protein may function during development as an inducible growth inhibitor that contributes to cell cycle exit and differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parker, S B -- Eichele, G -- Zhang, P -- Rawls, A -- Sands, A T -- Bradley, A -- Olson, E N -- Harper, J W -- Elledge, S J -- AG-11085/AG/NIA NIH HHS/ -- AR39849/AR/NIAMS NIH HHS/ -- AR40339/AR/NIAMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Feb 17;267(5200):1024-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Howard Hughes Medical Institute, Baylor College of Medicine, Houston, TX 77030.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7863329" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Cycle ; *Cell Differentiation ; Cell Line ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclins/*biosynthesis/genetics ; Embryo, Mammalian/metabolism ; *Gene Expression Regulation, Developmental ; In Situ Hybridization ; Mice ; Mice, Inbred C57BL ; Muscle, Skeletal/*cytology/metabolism ; MyoD Protein/genetics/physiology ; Myogenin/genetics/physiology ; Tumor Suppressor Protein p53/*physiology
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  • 60
    Publication Date: 1995-02-10
    Description: Apoptosis (programmed cell death) plays a major role in development and tissue regeneration. Basement membrane extracellular matrix (ECM), but not fibronectin or collagen, was shown to suppress apoptosis of mammary epithelial cells in tissue culture and in vivo. Apoptosis was induced by antibodies to beta 1 integrins or by overexpression of stromelysin-1, which degrades ECM. Expression of interleukin-1 beta converting enzyme (ICE) correlated with the loss of ECM, and inhibitors of ICE activity prevented apoptosis. These results suggest that ECM regulates apoptosis in mammary epithelial cells through an integrin-dependent negative regulation of ICE expression.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3004777/" 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/PMC3004777/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boudreau, N -- Sympson, C J -- Werb, Z -- Bissell, M J -- CA 57621/CA/NCI NIH HHS/ -- ES 07106/ES/NIEHS NIH HHS/ -- R01 CA057621/CA/NCI NIH HHS/ -- R01 CA057621-07/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Feb 10;267(5199):891-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Life Sciences Division, Lawrence Berkeley Laboratory, Berkeley, CA 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7531366" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD29 ; *Apoptosis ; Basement Membrane ; Caspase 1 ; Cell Line ; Collagen ; Cysteine Endopeptidases/genetics/*metabolism ; Cysteine Proteinase Inhibitors/pharmacology ; Extracellular Matrix/metabolism/*physiology ; Fibronectins ; Gene Expression Regulation, Enzymologic ; Integrins/immunology ; Mammary Glands, Animal/*cytology/enzymology ; Matrix Metalloproteinase 3 ; Metalloendopeptidases/genetics/metabolism ; Mice ; Mice, Transgenic ; RNA, Messenger/genetics/metabolism ; Transfection
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  • 61
    Publication Date: 1995-07-14
    Description: CD22 is a membrane immunoglobulin (mIg)-associated protein of B cells. CD22 is tyrosine-phosphorylated when mIg is ligated. Tyrosine-phosphorylated CD22 binds and activates SHP, a protein tyrosine phosphatase known to negatively regulate signaling through mIg. Ligation of CD22 to prevent its coaggregation with mIg lowers the threshold at which mIg activates the B cell by a factor of 100. In secondary lymphoid organs, CD22 may be sequestered away from mIg through interactions with counterreceptors on T cells. Thus, CD22 is a molecular switch for SHP that may bias mIg signaling to anatomic sites rich in T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Doody, G M -- Justement, L B -- Delibrias, C C -- Matthews, R J -- Lin, J -- Thomas, M L -- Fearon, D T -- GM-46524/GM/NIGMS NIH HHS/ -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1995 Jul 14;269(5221):242-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Immunology Unit, Department of Medicine, University of Cambridge, School of Clinical Medicine, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7618087" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antigens, CD/*immunology/metabolism ; Antigens, Differentiation, B-Lymphocyte/*immunology/metabolism ; B-Lymphocytes/*immunology ; *Cell Adhesion Molecules ; Cells, Cultured ; Humans ; Immunoglobulin M/immunology ; Intracellular Signaling Peptides and Proteins ; *Lectins ; *Lymphocyte Activation ; Mice ; Molecular Sequence Data ; Phosphorylation ; Protein Tyrosine Phosphatase, Non-Receptor Type 11 ; Protein Tyrosine Phosphatase, Non-Receptor Type 6 ; Protein Tyrosine Phosphatases/*metabolism ; Recombinant Proteins/metabolism ; Sialic Acid Binding Ig-like Lectin 2 ; Signal Transduction ; Tumor Cells, Cultured
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  • 62
    Publication Date: 1995-02-17
    Description: Skeletal muscle differentiation entails the coordination of muscle-specific gene expression and terminal withdrawal from the cell cycle. This cell cycle arrest in the G0 phase requires the retinoblastoma tumor suppressor protein (Rb). The function of Rb is negatively regulated by cyclin-dependent kinases (Cdks), which are controlled by Cdk inhibitors. Expression of MyoD, a skeletal muscle-specific transcriptional regulator, activated the expression of the Cdk inhibitor p21 during differentiation of murine myocytes and in nonmyogenic cells. MyoD-mediated induction of p21 did not require the tumor suppressor protein p53 and correlated with cell cycle withdrawal. Thus, MyoD may induce terminal cell cycle arrest during skeletal muscle differentiation by increasing the expression of p21.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Halevy, O -- Novitch, B G -- Spicer, D B -- Skapek, S X -- Rhee, J -- Hannon, G J -- Beach, D -- Lassar, A B -- F32ARO8214-01A1/AR/NIAMS NIH HHS/ -- N01-HD-6-2915/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1995 Feb 17;267(5200):1018-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7863327" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Carrier Proteins ; *Cell Cycle ; *Cell Cycle Proteins ; *Cell Differentiation ; Cell Line ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclin-Dependent Kinase Inhibitor p27 ; Cyclin-Dependent Kinases/*antagonists & inhibitors ; Cyclins/*biosynthesis/genetics ; *DNA-Binding Proteins ; E2F Transcription Factors ; G0 Phase ; Humans ; Mice ; Microtubule-Associated Proteins/biosynthesis/genetics ; Muscle, Skeletal/*cytology/metabolism ; MyoD Protein/*physiology ; RNA, Messenger/genetics/metabolism ; Retinoblastoma Protein/physiology ; Retinoblastoma-Binding Protein 1 ; Transcription Factor DP1 ; Transcription Factors/metabolism ; Tumor Cells, Cultured ; Tumor Suppressor Protein p53/physiology ; *Tumor Suppressor Proteins
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  • 63
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-11-24
    Description: The assembly and transport of major histocompatibility complex (MHC) class II molecules require interaction with the invariant chain. A fragment of the invariant chain, CLIP, occupies the peptide-binding groove of the class II molecule. At endosomal pH, the binding of CLIP to human MHC class II HLA-DR molecules was counteracted by its amino-terminal segment (residues 81 to 89), which facilitated rapid release. The CLIP (81-89) fragment also catalyzed the release of CLIP(90-105) and a subset of other self-peptides, probably by transient interaction with an effector site outside the groove. Thus, CLIP may facilitate peptide loading through an allosteric release mechanism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kropshofer, H -- Vogt, A B -- Stern, L J -- Hammerling, G J -- New York, N.Y. -- Science. 1995 Nov 24;270(5240):1357-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Immunology, German Cancer Research Center, Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481823" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigens, Differentiation, B-Lymphocyte/chemistry/*metabolism ; Binding Sites ; Cell Line ; HLA-DR3 Antigen/*metabolism ; Histocompatibility Antigens Class II/chemistry/*metabolism ; Humans ; Hydrogen-Ion Concentration ; Lysine/chemistry ; Molecular Sequence Data ; Peptide Fragments/metabolism ; Proline/chemistry ; Protein Conformation
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  • 64
    Publication Date: 1995-09-08
    Description: Germline mutations in the von Hippel-Lindau tumor suppressor gene (VHL) predispose individuals to a variety of tumors, including renal carcinoma, hemangioblastoma of the central nervous system, and pheochromocytoma. Here, a cellular transcription factor, Elongin (SIII), is identified as a functional target of the VHL protein. Elongin (SIII) is a heterotrimer consisting of a transcriptionally active subunit (A) and two regulatory subunits (B and C) that activate transcription elongation by RNA polymerase II. The VHL protein was shown to bind tightly and specifically to the Elongin B and C subunits and to inhibit Elongin (SIII) transcriptional activity in vitro. These findings reveal a potentially important transcriptional regulatory network in which the VHL protein may play a key role.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duan, D R -- Pause, A -- Burgess, W H -- Aso, T -- Chen, D Y -- Garrett, K P -- Conaway, R C -- Conaway, J W -- Linehan, W M -- Klausner, R D -- GM41628/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Sep 8;269(5229):1402-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Urologic Oncology Section, National Cancer Institute, 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/7660122" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Line ; Cloning, Molecular ; Gene Expression Regulation ; *Genes, Tumor Suppressor ; HeLa Cells ; Humans ; *Ligases ; Molecular Sequence Data ; Mutation ; Nuclear Proteins/genetics/*metabolism ; RNA Polymerase II/metabolism ; Recombinant Proteins/metabolism ; Transcription Factors/chemistry/isolation & purification/*metabolism ; *Transcription, Genetic ; *Tumor Suppressor Proteins ; *Ubiquitin-Protein Ligases ; Von Hippel-Lindau Tumor Suppressor Protein ; von Hippel-Lindau Disease/*genetics
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  • 65
    Publication Date: 1995-02-03
    Description: Mammalian mitogen-activated protein (MAP) kinases include extracellular signal-regulated protein kinase (ERK), c-Jun amino-terminal kinase (JNK), and p38 subgroups. These MAP kinase isoforms are activated by dual phosphorylation on threonine and tyrosine. Two human MAP kinase kinases (MKK3 and MKK4) were cloned that phosphorylate and activate p38 MAP kinase. These MKK isoforms did not activate the ERK subgroup of MAP kinases, but MKK4 did activate JNK. These data demonstrate that the activators of p38 (MKK3 and MKK4), JNK (MKK4), and ERK (MEK1 and MEK2) define independent MAP kinase signal transduction pathways.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Derijard, B -- Raingeaud, J -- Barrett, T -- Wu, I H -- Han, J -- Ulevitch, R J -- Davis, R J -- AI15136/AI/NIAID NIH HHS/ -- CA58396/CA/NCI NIH HHS/ -- GM37696/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Feb 3;267(5198):682-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, University of Massachusetts Medical School, Worcester 01605.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7839144" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Cell Line ; Cloning, Molecular ; Enzyme Activation ; Humans ; JNK Mitogen-Activated Protein Kinases ; MAP Kinase Kinase 3 ; *MAP Kinase Kinase 4 ; Mitogen-Activated Protein Kinase 1 ; *Mitogen-Activated Protein Kinase Kinases ; *Mitogen-Activated Protein Kinases ; Molecular Sequence Data ; Phosphorylation ; Protein-Serine-Threonine Kinases/chemistry/*metabolism ; Protein-Tyrosine Kinases/chemistry/*metabolism ; *Signal Transduction ; Substrate Specificity ; Transfection ; p38 Mitogen-Activated Protein Kinases
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  • 66
    Publication Date: 1995-11-24
    Description: Immune evasion by the human immunodeficiency virus (HIV) is unexplained but may involve the mutation of viral antigens. When cytotoxic T lymphocytes engaged CD4-positive cells that were acutely infected with HIV bearing natural variant epitopes in reverse transcriptase, substantial inhibition of specific antiviral lysis was observed. Mutant viruses capable of these transactive effects could facilitate the persistence of a broad range of HIV variants in the face of an active and specific immune response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meier, U C -- Klenerman, P -- Griffin, P -- James, W -- Koppe, B -- Larder, B -- McMichael, A -- Phillips, R -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 1995 Nov 24;270(5240):1360-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nuffield Department of Clinical Medicine, John Radcliffe Hospital, Headington, Oxford, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481824" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antigenic Variation ; Base Sequence ; CD4-Positive T-Lymphocytes/immunology/virology ; Cell Line ; *Cytotoxicity, Immunologic ; Epitopes/genetics ; HIV Antigens/genetics/*immunology ; HIV Reverse Transcriptase ; HIV-1/enzymology/genetics/*immunology ; HLA-B8 Antigen/immunology ; Humans ; *Immune Tolerance ; Molecular Sequence Data ; RNA-Directed DNA Polymerase/genetics/*immunology ; Receptors, Antigen, T-Cell/immunology ; T-Lymphocytes, Cytotoxic/*immunology
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  • 67
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-04-28
    Description: The effects of neurotrophins on several forms of neuronal degeneration in murine cortical cell cultures were examined. Consistent with other studies, brain-derived neurotrophic factor, neurotrophin-3, and neurotrophin-4/5 all attenuated the apoptotic death induced by serum deprivation or exposure to the calcium channel antagonist nimodipine. Unexpectedly, however, 24-hour pretreatment with these same neurotrophins markedly potentiated the necrotic death induced by exposure to oxygen-glucose deprivation or N-methyl-D-aspartate. Thus, certain neurotrophins may have opposing effects on different types of death in the same neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koh, J Y -- Gwag, B J -- Lobner, D -- Choi, D W -- NS 30337/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1995 Apr 28;268(5210):573-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for the Study of Nervous System Injury, 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/7725105" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis/drug effects ; Brain-Derived Neurotrophic Factor ; Calcium/metabolism ; Cell Death/drug effects ; Cells, Cultured ; Cerebral Cortex/cytology ; Dizocilpine Maleate/pharmacology ; Mice ; N-Methylaspartate/pharmacology ; Necrosis ; Nerve Degeneration/*drug effects ; Nerve Growth Factors/*pharmacology ; Nerve Tissue Proteins/pharmacology ; Neurons/*cytology/drug effects/pathology ; Neurotrophin 3 ; Quinoxalines/pharmacology ; Receptors, AMPA/antagonists & inhibitors
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  • 68
    Publication Date: 1995-10-13
    Description: Stimulation of rat vascular smooth muscle cells (VSMCs) by platelet-derived growth factor (PDGF) transiently increased the intracellular concentration of hydrogen peroxide (H2O2). This increase could be blunted by increasing the intracellular concentration of the scavenging enzyme catalase or by the chemical antioxidant N-acetylcysteine. The response of VSMCs to PDGF, which includes tyrosine phosphorylation, mitogen-activated protein kinase stimulation, DNA synthesis, and chemotaxis, was inhibited when the growth factor-stimulated rise in H2O2 concentration was blocked. These results suggest that H2O2 may act as a signal-transducing molecule, and they suggest a potential mechanism for the cardioprotective effects of antioxidants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sundaresan, M -- Yu, Z X -- Ferrans, V J -- Irani, K -- Finkel, T -- New York, N.Y. -- Science. 1995 Oct 13;270(5234):296-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cardiology Branch, National Heart, Lung, and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD 20892-1650, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7569979" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcysteine/pharmacology ; Adenoviridae/genetics/physiology ; Animals ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Catalase/metabolism ; Cell Line ; Cells, Cultured ; Chemotaxis/drug effects ; Endopeptidase K ; Free Radical Scavengers/pharmacology ; Humans ; Hydrogen Peroxide/*metabolism ; Mitogen-Activated Protein Kinase 1 ; Mitogen-Activated Protein Kinase 3 ; *Mitogen-Activated Protein Kinases ; Muscle, Smooth, Vascular/cytology/drug effects/*metabolism/virology ; Phosphorylation ; Phosphotyrosine/metabolism ; Platelet-Derived Growth Factor/*pharmacology ; Protein-Tyrosine Kinases/metabolism ; Rats ; Serine Endopeptidases/metabolism ; *Signal Transduction
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  • 69
    Publication Date: 1995-08-18
    Description: The Volga German kindreds are a group of seven related families with autosomal dominant early-onset Alzheimer's disease (AD). Linkage to known AD-related loci on chromosomes 21 and 14 has been excluded. Significant evidence for linkage to AD in these families was obtained with D1S479 and there was also positive evidence for linkage with other markers in the region. A 112-base pair allele of D1S479 co-segregated with the disease in five of seven families, which is consistent with a common genetic founder. This study demonstrates the presence of an AD locus on chromosome 1q31-42.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levy-Lahad, E -- Wijsman, E M -- Nemens, E -- Anderson, L -- Goddard, K A -- Weber, J L -- Bird, T D -- Schellenberg, G D -- AG05136/AG/NIA NIH HHS/ -- F32 AG05635/AG/NIA NIH HHS/ -- HG00835/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 1995 Aug 18;269(5226):970-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Geriatric Research, Education, and Clinical Center (182B), Veterans Affairs Medical Center, Seattle, WA 98108-1597, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7638621" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Age of Onset ; Aged ; Aged, 80 and over ; Alleles ; Alzheimer Disease/ethnology/*genetics ; Cell Line ; Chromosome Mapping ; Chromosomes, Human, Pair 1/*genetics ; Female ; Genetic Markers ; Genotype ; Germany/ethnology ; Haplotypes ; Humans ; Lod Score ; Male ; Middle Aged ; Pedigree
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  • 70
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-03-24
    Description: Transport of RNAs within nuclei and through nuclear pore complexes (NPCs) are essential, but poorly understood, steps in gene expression. In experiments with mammalian cells, RCC1, the abundant nuclear guanine nucleotide exchange factor for the guanosine triphosphatase Ran/TC4, was shown to be required for nucleocytoplasmic transport of precursors of spliceosomal small nuclear RNAs (snRNAs), intranuclear transport of U3 snRNA, and processing of ribosomal RNAs, but not for export of transfer RNAs. It is proposed that guanosine triphosphate (GTP)-bound Ran/TC4 associates with ribonucleoprotein particles (RNPs) during intranuclear movement, and that GTP hydrolysis promotes deposition of RNPs at targeted sites such as NPCs or nucleoli.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cheng, Y -- Dahlberg, J E -- Lund, E -- GM 30220/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Mar 24;267(5205):1807-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomolecular Chemistry, University of Wisconsin School of Medicine, Madison 53706.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7534442" target="_blank"〉PubMed〈/a〉
    Keywords: Biological Transport/physiology ; *Cell Cycle Proteins ; Cell Line ; Cell Nucleus/*metabolism ; DNA-Binding Proteins/*physiology ; *Guanine Nucleotide Exchange Factors ; Guanosine Triphosphate/metabolism ; Methylation ; Nuclear Proteins/metabolism/*physiology ; RNA/*metabolism ; RNA Precursors/metabolism ; RNA, Ribosomal/metabolism ; RNA, Small Nuclear/metabolism ; RNA, Transfer/metabolism ; Spliceosomes/metabolism ; ran GTP-Binding Protein
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  • 71
    Publication Date: 1995-12-15
    Description: The template and coactivator requirements for synergistic transcription directed by a single activator, Bicoid (BCD), bound to multiple sites have been determined. Mutagenesis studies in combination with protein binding experiments and reconstituted transcription reactions identified two independent activation domains of BCD that target different coactivator subunits (TAFII110 and TAFII60) of the basal transcription factor IID (TFIID). The presence of both coactivators is required for BCD to recruit the TATA binding protein (TBP)-TAF complex to the promoter and direct synergistic activation of transcription. Thus, contact between multiple activation domains of BCD and different targets within the TFIID complex can mediate transcriptional synergism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sauer, F -- Hansen, S K -- Tjian, R -- New York, N.Y. -- Science. 1995 Dec 15;270(5243):1825-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular and Cell Biology, University of California, Berkeley 94720-3204, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8525377" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Cell Line ; DNA/*metabolism ; DNA-Binding Proteins/genetics/metabolism ; Drosophila/*genetics/metabolism ; *Drosophila Proteins ; Enhancer Elements, Genetic ; Escherichia coli ; *Homeodomain Proteins ; Insect Hormones/genetics/*metabolism ; Juvenile Hormones/genetics/metabolism ; Mutagenesis ; Peptide Fragments/genetics/metabolism ; Promoter Regions, Genetic ; Protein Binding ; Recombinant Fusion Proteins/genetics/metabolism ; TATA-Box Binding Protein ; Templates, Genetic ; Trans-Activators/*metabolism ; Transcription Factor TFIID ; Transcription Factors/genetics/metabolism ; *Transcription, Genetic
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  • 72
    Publication Date: 1995-12-15
    Description: Evidence suggests that CD8+ T lymphocytes are involved in the control of human immunodeficiency virus (HIV) infection in vivo, either by cytolytic mechanisms or by the release of HIV-suppressive factors (HIV-SF). The chemokines RANTES, MIP-1 alpha, and MIP-1 beta were identified as the major HIV-SF produced by CD8+ T cells. Two active proteins purified from the culture supernatant of an immortalized CD8+ T cell clone revealed sequence identity with human RANTES and MIP-1 alpha. RANTES, MIP-1 alpha, and MIP-1 beta were released by both immortalized and primary CD8+ T cells. HIV-SF activity produced by these cells was completely blocked by a combination of neutralizing antibodies against RANTES, MIP-1 alpha, and MIP-1 beta. Recombinant human RANTES, MIP-1 alpha, and MIP-1 beta induced a dose-dependent inhibition of different strains of HIV-1, HIV-2, and simian immunodeficiency virus (SIV). These data may have relevance for the prevention and therapy of AIDS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cocchi, F -- DeVico, A L -- Garzino-Demo, A -- Arya, S K -- Gallo, R C -- Lusso, P -- New York, N.Y. -- Science. 1995 Dec 15;270(5243):1811-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Tumor Cell Biology, National Cancer Institute, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8525373" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Amino Acid Sequence ; Animals ; Antiviral Agents/*physiology ; CD8-Positive T-Lymphocytes/*immunology ; Cell Division/physiology ; Cell Line ; Cells, Cultured ; Chemokine CCL4 ; Chemokine CCL5/antagonists & inhibitors/*immunology ; Culture Media, Conditioned ; Cytokines/antagonists & inhibitors/*immunology ; Dose-Response Relationship, Immunologic ; Escherichia coli ; HIV Infections/immunology ; HIV-1/*immunology ; HIV-2/immunology ; Herpesvirus 6, Human/immunology ; Herpesvirus 7, Human/immunology ; Human T-lymphotropic virus 1/immunology ; Humans ; Immunoglobulin G/immunology ; Lymphocyte Activation ; Macaca nemestrina ; Macrophage Inflammatory Proteins ; Molecular Sequence Data ; Monokines/antagonists & inhibitors/*immunology ; Recombinant Proteins/immunology ; Simian Immunodeficiency Virus/immunology
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  • 73
    Publication Date: 1995-11-17
    Description: Interferon gamma (IFN-gamma) responsiveness in certain cells depends on the state of cellular differentiation or activation. Here an in vitro developmental system was used to show that IFN-gamma produced during generation of the CD4+ T helper cell type 1 (TH1) subset extinguishes expression of the IFN-gamma receptor beta subunit, resulting in TH1 cells that are unresponsive to IFN-gamma. This beta chain loss also occurred in IFN-gamma-treated TH2 cells and thus represents a specific response of CD4+ T cells to IFN-gamma rather than a TH1-specific differentiation event. These results define a mechanism of cellular desensitization where a cytokine down-regulates expression of a receptor subunit required primarily for signaling and not ligand binding.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bach, E A -- Szabo, S J -- Dighe, A S -- Ashkenazi, A -- Aguet, M -- Murphy, K M -- Schreiber, R D -- New York, N.Y. -- Science. 1995 Nov 17;270(5239):1215-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Immunology, 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/7502050" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/*biosynthesis ; Cell Differentiation ; Cell Line ; Cytokines/biosynthesis ; Down-Regulation ; Gene Expression ; Genes, MHC Class I ; Interferon-gamma/*pharmacology ; Ligands ; Mice ; Mice, Transgenic ; Receptors, Interferon/*biosynthesis ; Th1 Cells/cytology/immunology/*metabolism ; Th2 Cells/cytology/immunology/*metabolism
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  • 74
    Publication Date: 1995-11-24
    Description: Development of the mammalian nervous system is regulated by neural impulse activity, but the molecular mechanisms are not well understood. If cell recognition molecules [for example, L1 and the neural cell adhesion molecule (NCAM)] were influenced by specific patterns of impulse activity, cell-cell interactions controlling nervous system structure could be regulated by nervous system function at critical stages of development. Low-frequency electrical pulses delivered to mouse sensory neurons in culture (0.1 hertz for 5 days) down-regulated expression of L1 messenger RNA and protein (but not NCAM). Fasciculation of neurites, adhesion of neuroblastoma cells, and the number of Schwann cells on neurites was reduced after 0.1-hertz stimulation, but higher frequencies or stimulation after synaptogenesis were without effect.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Itoh, K -- Stevens, B -- Schachner, M -- Fields, R D -- New York, N.Y. -- Science. 1995 Nov 24;270(5240):1369-72.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Institutes of Health, National Institute of Child Health and Human Development, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481827" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/physiology ; Cell Adhesion ; Cells, Cultured ; Down-Regulation ; Electric Stimulation ; Ganglia, Spinal/cytology ; Leukocyte L1 Antigen Complex ; Mice ; Nerve Growth Factors/pharmacology ; Neural Cell Adhesion Molecules/*biosynthesis/genetics ; Neurites/physiology ; Neurons, Afferent/*metabolism/physiology ; RNA, Messenger/genetics/metabolism ; Schwann Cells/physiology ; Spinal Cord/cytology/physiology ; Tumor Cells, Cultured
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  • 75
    Publication Date: 1995-05-26
    Description: Src homology 2 (SH2) domains mediate assembly of signaling complexes by binding specifically to tyrosine-phosphorylated proteins. A phosphotyrosine binding (PTB) domain has been identified which also binds specifically to tyrosine-phosphorylated targets, but is structurally different from SH2 domains. Expression cloning was used to identify targets of PTB domains. PTB domains bound to phosphotyrosine within a sequence motif, asparagine-X1-X2-phosphotyrosine (where X represents any amino acid), that is found in many signaling proteins and is not recognized by SH2 domains. Mutational studies indicated that high affinity binding of PTB domains may require a specific conformation of the motif.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kavanaugh, W M -- Turck, C W -- Williams, L T -- K11 HL02714/HL/NHLBI NIH HHS/ -- R01 HL 32898/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1995 May 26;268(5214):1177-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, San Francisco 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7539155" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites/physiology ; Binding, Competitive ; Cell Line ; Humans ; Molecular Sequence Data ; Phosphopeptides/*metabolism ; Phosphotyrosine ; Protein Binding/*physiology ; Recombinant Proteins/metabolism ; Signal Transduction/*physiology ; Tumor Cells, Cultured ; Tyrosine/*analogs & derivatives/metabolism
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  • 76
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-09-01
    Description: Members of the Rho family of small guanosine triphosphatases (GTPases) regulate the organization of the actin cytoskeleton; Rho controls the assembly of actin stress fibers and focal adhesion complexes, Rac regulates actin filament accumulation at the plasma membrane to produce lamellipodia and membrane ruffles, and Cdc42 stimulates the formation of filopodia. When microinjected into quiescent fibroblasts, Rho, Rac, and Cdc42 stimulated cell cycle progression through G1 and subsequent DNA synthesis. Furthermore, microinjection of dominant negative forms of Rac and Cdc42 or of the Rho inhibitor C3 transferase blocked serum-induced DNA synthesis. Unlike Ras, none of the Rho GTPases activated the mitogen-activated protein kinase (MAPK) cascade that contains the protein kinases c-Raf1, MEK (MAPK or ERK kinase), and ERK (extracellular signal-regulated kinase). Instead, Rac and Cdc42, but not Rho, stimulated a distinct MAP kinase, the c-Jun kinase JNK/SAPK (Jun NH2-terminal kinase or stress-activated protein kinase). Rho, Rac, and Cdc42 control signal transduction pathways that are essential for cell growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olson, M F -- Ashworth, A -- Hall, A -- New York, N.Y. -- Science. 1995 Sep 1;269(5228):1270-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, University College, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7652575" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Amino Acid Sequence ; Animals ; Base Sequence ; Calcium-Calmodulin-Dependent Protein Kinases/metabolism ; Cell Cycle Proteins/*metabolism ; Cell Line ; DNA/biosynthesis ; *G1 Phase ; GTP Phosphohydrolases/*metabolism ; GTP-Binding Proteins/*metabolism ; JNK Mitogen-Activated Protein Kinases ; MAP Kinase Kinase 1 ; Mice ; Microinjections ; *Mitogen-Activated Protein Kinase Kinases ; *Mitogen-Activated Protein Kinases ; Molecular Sequence Data ; Protein-Serine-Threonine Kinases/metabolism ; Protein-Tyrosine Kinases/metabolism ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins c-raf ; *Signal Transduction ; Transfection ; cdc42 GTP-Binding Protein, Saccharomyces cerevisiae ; rac GTP-Binding Proteins ; rhoA GTP-Binding Protein
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  • 77
    Publication Date: 1995-09-22
    Description: Activation of early response genes by interferons (IFNs) requires tyrosine phosphorylation of STAT (signal transducers and activators of transcription) proteins. It was found that the serine-threonine kinase mitogen-activated protein kinase (MAPK) [specifically, the 42-kilodalton MAPK or extracellular signal-regulated kinase 2 (ERK2)] interacted with the alpha subunit of IFN-alpha/beta receptor in vitro and in vivo. Treatment of cells with IFN-beta induced tyrosine phosphorylation and activation of MAPK and caused MAPK and Stat1 alpha to coimmunoprecipitate. Furthermore, expression of dominant negative MAPK inhibited IFN-beta-induced transcription. Therefore, MAPK appears to regulate IFN-alpha and IFN-beta activation of early response genes by modifying the Jak-STAT signaling cascade.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉David, M -- Petricoin, E 3rd -- Benjamin, C -- Pine, R -- Weber, M J -- Larner, A C -- GM47332/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Sep 22;269(5231):1721-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cytokine Biology, Center for Biologics Evaluation and Research, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7569900" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Calcium-Calmodulin-Dependent Protein Kinases/*metabolism ; Cells, Cultured ; DNA-Binding Proteins/*metabolism ; Enzyme Activation ; *Gene Expression Regulation ; Humans ; Interferon-alpha/pharmacology ; Interferon-beta/*pharmacology ; Membrane Proteins ; Mitogen-Activated Protein Kinase 1 ; Phosphorylation ; Receptor, Interferon alpha-beta ; Receptors, Interferon/*metabolism ; Recombinant Fusion Proteins/metabolism ; STAT1 Transcription Factor ; *Signal Transduction ; Trans-Activators/*metabolism ; Transcription, Genetic ; Transfection ; Tumor Cells, Cultured ; Tyrosine/metabolism
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  • 78
    Publication Date: 1995-02-24
    Description: Severe combined immunodeficient (SCID) mice are deficient in a recombination process utilized in both DNA double-strand break repair and in V(D)J recombination. The phenotype of these mice involves both cellular hypersensitivity to ionizing radiation and a lack of B and T cell immunity. The catalytic subunit of DNA-dependent protein kinase, p350, was identified as a strong candidate for the murine gene SCID. Both p350 and a gene complementing the SCID defect colocalize to human chromosome 8q11. Chromosomal fragments expressing p350 complement the SCID phenotype, and p350 protein levels are greatly reduced in cells derived from SCID mice compared to cells from wild-type mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kirchgessner, C U -- Patil, C K -- Evans, J W -- Cuomo, C A -- Fried, L M -- Carter, T -- Oettinger, M A -- Brown, J M -- CA 15201/CA/NCI NIH HHS/ -- CA 37761/CA/NCI NIH HHS/ -- GM48026/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Feb 24;267(5201):1178-83.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Radiation Oncology, Stanford University School of Medicine, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7855601" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Line ; Chromosome Mapping ; Chromosomes, Human, Pair 8 ; Cloning, Molecular ; DNA Repair/genetics ; DNA-Activated Protein Kinase ; *DNA-Binding Proteins ; Gamma Rays ; Genetic Complementation Test ; Genetic Markers ; Humans ; In Situ Hybridization, Fluorescence ; Mice ; Mice, SCID ; Molecular Sequence Data ; Nuclear Proteins ; Phenotype ; Protein-Serine-Threonine Kinases/*genetics/metabolism ; Radiation Tolerance ; Recombination, Genetic ; Severe Combined Immunodeficiency/enzymology/*genetics
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  • 79
    Publication Date: 1995-07-14
    Description: It has long been the paradigm that T cells recognize peptide antigens presented by major histocompatibility complex (MHC) molecules. However, nonpeptide antigens can be presented to T cells by human CD1b molecules, which are not encoded by the MHC. A major class of microbial antigens associated with pathogenicity are lipoglycans. It is shown here that human CD1b presents the defined mycobacterial lipoglycan lipoarabinomannan (LAM) to alpha beta T cell receptor-bearing lymphocytes. Presentation of these lipoglycan antigens required internalization and endosomal acidification. The T cell recognition required mannosides with alpha(1--〉2) linkages and a phosphotidylinositol unit. T cells activated by LAM produced interferon gamma and were cytolytic. Thus, an important class of microbial molecules, the lipoglycans, is a part of the universe of foreign antigens recognized by human T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sieling, P A -- Chatterjee, D -- Porcelli, S A -- Prigozy, T I -- Mazzaccaro, R J -- Soriano, T -- Bloom, B R -- Brenner, M B -- Kronenberg, M -- Brennan, P J -- AI 07118/AI/NIAID NIH HHS/ -- AI 18357/AI/NIAID NIH HHS/ -- AI 28973/AI/NIAID NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1995 Jul 14;269(5221):227-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Dermatology, University of California at Los Angeles (UCLA) School of Medicine 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7542404" target="_blank"〉PubMed〈/a〉
    Keywords: *Antigen Presentation ; Antigen-Presenting Cells/immunology ; Antigens, CD/*immunology ; Antigens, CD1 ; Carbohydrate Conformation ; Carbohydrate Sequence ; Cell Line ; Humans ; Interferon-gamma/secretion ; Interleukin-4/secretion ; Leprosy/*immunology ; Lipopolysaccharides/*immunology ; Lymphocyte Activation ; Molecular Sequence Data ; Mycobacterium leprae/immunology ; Phosphatidylinositols/immunology ; Receptors, Antigen, T-Cell, alpha-beta/immunology ; Species Specificity ; T-Lymphocytes, Cytotoxic/*immunology
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  • 80
    Publication Date: 1995-09-15
    Description: H-Y is a transplantation antigen that can lead to rejection of male organ and bone marrow grafts by female recipients, even if the donor and recipient match at the major histocompatibility locus of humans, the HLA (human leukocyte antigen) locus. However, the origin and function of H-Y antigens has eluded researchers for 40 years. One human H-Y antigen presented by HLA-B7 was identified as an 11-residue peptide derived from SMCY, an evolutionarily conserved protein encoded on the Y chromosome. The protein from the homologous gene on the X chromosome, SMCX, differs by two amino acid residues in the same region. The identification of H-Y may aid in transplantation prognosis, prenatal diagnosis, and fertilization strategies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, W -- Meadows, L R -- den Haan, J M -- Sherman, N E -- Chen, Y -- Blokland, E -- Shabanowitz, J -- Agulnik, A I -- Hendrickson, R C -- Bishop, C E -- AI20963/AI/NIAID NIH HHS/ -- AI33993/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1995 Sep 15;269(5230):1588-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, University of Virginia, Charlottesville 22908, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7667640" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; B-Lymphocytes ; Cell Line ; Chromatography, High Pressure Liquid ; H-Y Antigen/*chemistry/genetics/immunology ; HLA-B7 Antigen/immunology ; Histone Demethylases ; Histone-Lysine N-Methyltransferase ; Humans ; Male ; Mass Spectrometry/methods ; Molecular Sequence Data ; Molecular Weight ; Oxidoreductases, N-Demethylating ; Proteins/*chemistry/genetics/immunology ; T-Lymphocytes, Cytotoxic/immunology ; X Chromosome ; *Y Chromosome
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  • 81
    Publication Date: 1995-12-01
    Description: Intracellular calcium (Ca2+) inhibits the opening of L-type (alpha 1C) Ca2+ channels, providing physiological control of Ca2+ entry into a wide variety of cells. A structural determinant of this Ca(2+)-sensitive inactivation was revealed by chimeric Ca2+ channels derived from parental alpha 1C and alpha 1E channels, the latter of which is a neuronal channel lacking Ca2+ inactivation. A consensus Ca(2+)-binding motif (an EF hand), located on the alpha 1C subunit, was required for Ca2+ inactivation. Donation of the alpha 1C EF-hand region to the alpha 1E channel conferred the Ca(2+)-inactivating phenotype. These results strongly suggest that Ca2+ binding to the alpha 1C subunit initiates Ca2+ inactivation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Leon, M -- Wang, Y -- Jones, L -- Perez-Reyes, E -- Wei, X -- Soong, T W -- Snutch, T P -- Yue, D T -- New York, N.Y. -- Science. 1995 Dec 1;270(5241):1502-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomedical Engineering, 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/7491499" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Barium/metabolism ; Calcium/*metabolism/pharmacology ; Calcium Channels/chemistry/*metabolism ; Cell Line ; Cyclic AMP-Dependent Protein Kinases/metabolism ; Humans ; Ion Channel Gating ; Molecular Sequence Data ; Patch-Clamp Techniques ; Phosphorylation ; Recombinant Fusion Proteins/chemistry/metabolism ; Sequence Alignment ; Up-Regulation
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  • 82
    Publication Date: 1995-11-10
    Description: The role of the cell-surface molecule CTLA-4 in the regulation of T cell activation has been controversial. Here, lymph nodes and spleens of CTLA-4-deficient mice accumulated T cell blasts with up-regulated activation markers. These blast cells also infiltrated liver, heart, lung, and pancreas tissue, and amounts of serum immunoglobulin were elevated. The mice invariably became moribund by 3 to 4 weeks of age. Although CTLA-4-deficient T cells proliferated spontaneously and strongly when stimulated through the T cell receptor, they were sensitive to cell death induced by cross-linking of the Fas receptor and by gamma irradiation. Thus, CTLA-4 acts as a negative regulator of T cell activation and is vital for the control of lymphocyte homeostasis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waterhouse, P -- Penninger, J M -- Timms, E -- Wakeham, A -- Shahinian, A -- Lee, K P -- Thompson, C B -- Griesser, H -- Mak, T W -- New York, N.Y. -- Science. 1995 Nov 10;270(5238):985-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology, University of Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481803" target="_blank"〉PubMed〈/a〉
    Keywords: Abatacept ; Animals ; Antigens, CD/analysis ; Antigens, CD95/metabolism ; Antigens, Differentiation/genetics/*physiology ; Apoptosis ; B-Lymphocytes/immunology ; CTLA-4 Antigen ; Cells, Cultured ; Concanavalin A/pharmacology ; Female ; Gamma Rays ; Gene Targeting ; Homeostasis ; *Immunoconjugates ; Immunoglobulins/blood ; Immunophenotyping ; Lymph Nodes/immunology/pathology ; *Lymphocyte Activation ; Lymphoproliferative Disorders/*immunology/pathology ; Male ; Mice ; Mice, Inbred C57BL ; Spleen/immunology/pathology ; T-Lymphocytes/*immunology
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  • 83
    Publication Date: 1995-07-21
    Description: The basal lamina that ensheaths skeletal muscle fibers traverses the synaptic cleft at the neuromuscular junction. Synaptic and extrasynaptic portions of the basal lamina contain different laminin beta chains: beta 2 (or s) at synapses and beta 1 (or B1) extrasynaptically. Laminin beta 2 is also confined to synapselike patches on myotube surfaces in vitro, whereas beta 1 is present throughout the extracellular matrix. This differential localization of laminin beta chains was analyzed by expression of chimeric beta 1-beta 2 molecules in cultured mouse myotubes. A 16-amino acid carboxyl-terminal sequence in beta 2 was necessary for synaptic localization, and an amino-terminal domain in beta 1 promoted association with extracellular fibrils. The synaptic targeting sequence of beta 2 contains a site previously shown to be adhesive for motor neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martin, P T -- Ettinger, A J -- Sanes, J R -- New York, N.Y. -- Science. 1995 Jul 21;269(5222):413-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Neurobiology, 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/7618109" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Basement Membrane/chemistry/metabolism ; Cell Line ; Laminin/analysis/biosynthesis/*chemistry/*metabolism ; Mice ; Molecular Sequence Data ; Muscle, Skeletal/cytology/metabolism ; Neuromuscular Junction/chemistry/metabolism ; Oligopeptides/metabolism ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Receptors, Cholinergic/analysis ; Recombinant Fusion Proteins/chemistry/metabolism ; Synapses/chemistry/*metabolism ; Transfection
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  • 84
    Publication Date: 1995-04-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Watson, C A -- Camera-Benson, L -- Palmer-Crocker, R -- Pober, J S -- New York, N.Y. -- Science. 1995 Apr 21;268(5209):447-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7716553" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Division/drug effects ; Cell Separation ; Cells, Cultured ; Culture Media ; Endothelium, Vascular/*cytology/drug effects ; Humans ; Interleukin-8/*pharmacology ; Umbilical Veins/cytology/drug effects
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  • 85
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-07-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Martin, S J -- McGahon, A J -- Nishioka, W K -- LaFace, D -- Guo, X -- Th'ng, J -- Bradbury, E M -- Green, D R -- GM52735/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Jul 7;269(5220):106-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7604270" target="_blank"〉PubMed〈/a〉
    Keywords: *Apoptosis ; CDC2 Protein Kinase/*metabolism ; Cell Line ; Temperature
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  • 86
    Publication Date: 1995-06-16
    Description: Gonadal steroidogenesis is regulated by pituitary gonadotropins and a locally produced, unidentified factor. A 70-kilodalton (kD) protein complex secreted from rat Sertoli cells was isolated. The complex, composed of 28- and 38-kD proteins, stimulated steroidogenesis by Leydig cells and ovarian granulosa cells in a dose-dependent and adenosine 3',5'-monophosphate-independent manner. The follicle-stimulating hormone-induced 28-kD protein appeared to be responsible for the bioactivity, but the 38-kD protein was indispensable for maximal activity. The 28- and 38-kD proteins were shown to be identical to the tissue inhibitor of metalloproteinase-1 (TIMP-1) and the proenzyme form of cathepsin L, respectively. Thus, a TIMP-1-procathepsin L complex is a potent activator of steroidogenesis and may regulate steroid concentrations and, thus, germ cell development in both males and females.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boujrad, N -- Ogwuegbu, S O -- Garnier, M -- Lee, C H -- Martin, B M -- Papadopoulos, V -- HD01031/HD/NICHD NIH HHS/ -- HD24633/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1995 Jun 16;268(5217):1609-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Georgetown University Medical Center, Washington, DC 20007, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7777858" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cathepsin L ; Cathepsins/chemistry/*isolation & purification/pharmacology/physiology ; Cells, Cultured ; Culture Media, Conditioned ; Cyclic AMP/metabolism ; Enzyme Precursors/chemistry/*isolation & purification/pharmacology/physiology ; Female ; Follicle Stimulating Hormone/pharmacology ; Glycoproteins/chemistry/genetics/*isolation & ; purification/pharmacology/physiology ; Granulosa Cells/drug effects/metabolism ; Leydig Cells/drug effects/metabolism ; Male ; Molecular Sequence Data ; Molecular Weight ; Pregnenolone/*biosynthesis ; Progesterone/*biosynthesis ; Rats ; Rats, Sprague-Dawley ; Sertoli Cells/*chemistry ; Tissue Inhibitor of Metalloproteinases ; Transfection
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  • 87
    Publication Date: 1995-10-06
    Description: The activation of cyclin-dependent kinases (CDKs) requires the phosphorylation of a conserved threonine (Thr160 in Cdk2) by CDK-activating kinase (CAK). Human KAP (also called Cdi1), a CDK-associated phosphatase, was shown to dephosphorylate Thr160 in human Cdk2. KAP was unable to dephosphorylate Tyr15 and only dephosphorylated Thr160 in native monomeric Cdk2. The binding of cyclin A to Cdk2 inhibited the dephosphorylation of Thr160 by KAP but did not preclude the binding of KAP to the cyclin A-Cdk2 complex. Moreover, the dephosphorylation of Thr160 by KAP prevented Cdk2 kinase activity upon subsequent association with cyclin A. These results suggest that KAP binds to Cdk2 and dephosphorylates Thr160 when the associated cyclin subunit is degraded or dissociates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Poon, R Y -- Hunter, T -- CA14195/CA/NCI NIH HHS/ -- CA39780/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Oct 6;270(5233):90-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Biology and Virology Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037-1099, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7569954" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; *CDC2-CDC28 Kinases ; *Cell Cycle Proteins ; Cell Line ; Cyclin-Dependent Kinase 2 ; Cyclin-Dependent Kinase Inhibitor Proteins ; Cyclin-Dependent Kinases/*metabolism ; Cyclins/metabolism ; Dual-Specificity Phosphatases ; HeLa Cells ; Humans ; Molecular Sequence Data ; Phosphoprotein Phosphatases/*metabolism ; Phosphorylation ; *Protein Tyrosine Phosphatases ; Protein-Serine-Threonine Kinases/*metabolism ; Recombinant Fusion Proteins/metabolism ; Threonine/metabolism
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  • 88
    Publication Date: 1995-01-13
    Description: Peptides from endogenous proteins are presented by major histocompatibility complex class I molecules, but antigens (Ags) in the extracellular fluids are generally not. However, pathogens or particulate Ags that are internalized into phagosomes of macrophages (M phi s) stimulate CD8 T cells. The presentation of these Ags is resistant to chloroquine but is blocked by inhibitors of the proteasome, a mutation in the TAP1-TAP2 transporter, and brefeldin A. Moreover, phagocytosis of a ribosomal-inactivating protein inhibited M phi protein synthesis. These results demonstrate that M phi s transfer Ags from phagosomes into the cytosol and that endogenous and exogenous Ags use a final common pathway for class I presentation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kovacsovics-Bankowski, M -- Rock, K L -- AI20248/AI/NIAID NIH HHS/ -- AI31337/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1995 Jan 13;267(5195):243-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Lymphocyte Biology, Dana-Farber Cancer Institute, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7809629" target="_blank"〉PubMed〈/a〉
    Keywords: ATP-Binding Cassette Transporters/genetics/metabolism ; Amino Acid Sequence ; Animals ; *Antigen Presentation ; Antigens/*metabolism ; Brefeldin A ; Cell Line ; Chloroquine/pharmacology ; Cyclopentanes/pharmacology ; Cysteine Endopeptidases/metabolism ; Cytosol/*immunology/metabolism ; Histocompatibility Antigens Class I/*immunology ; Macrophages/*immunology ; Mice ; Molecular Sequence Data ; Multienzyme Complexes/metabolism ; Oligopeptides/immunology/metabolism ; Ovalbumin/immunology/metabolism ; Phagocytosis ; Phagosomes/*immunology/metabolism ; Plant Proteins/pharmacology ; Proteasome Endopeptidase Complex ; Ribosome Inactivating Proteins, Type 1
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  • 89
    Publication Date: 1995-03-03
    Description: In response to specific ligands, various STAT proteins (signal transducers and activators of transcription) are phosphorylated on tyrosine by Jak protein kinases and translocated to the nucleus to direct gene transcription. Selection of a STAT at the interferon gamma receptor as well as specific STAT dimer formation depended on the presence of particular SH2 groups (phosphotyrosine-binding domains), whereas the amino acid sequence surrounding the phosphorylated tyrosine on the STAT could vary. Thus, SH2 groups in STAT proteins may play crucial roles in specificity at the receptor kinase complex and in subsequent dimerization, whereas the kinases are relatively nonspecific.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heim, M H -- Kerr, I M -- Stark, G R -- Darnell, J E Jr -- AI32489/AI/NIAID NIH HHS/ -- AI34420/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1995 Mar 3;267(5202):1347-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Cell Biology, Rockefeller University, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7871432" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; DNA-Binding Proteins/chemistry/*metabolism ; Interferon-alpha/*pharmacology ; Interferon-gamma/*pharmacology ; Janus Kinase 1 ; Janus Kinase 2 ; Phosphorylation ; Protein-Tyrosine Kinases/*metabolism ; Proteins/metabolism ; *Proto-Oncogene Proteins ; Receptors, Interferon/metabolism ; Recombinant Fusion Proteins/metabolism ; STAT1 Transcription Factor ; Signal Transduction ; Trans-Activators/chemistry/*metabolism ; Tyrosine/metabolism
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  • 90
    Publication Date: 1995-03-31
    Description: The interleukin-1 beta (IL-1 beta) converting enzyme (ICE) processes the inactive IL-1 beta precursor to the proinflammatory cytokine. Adherent monocytes from mice harboring a disrupted ICE gene (ICE-/-) did not export IL-1 beta or interleukin-1 alpha (IL-1 alpha) after stimulation with lipopolysaccharide. Export of tumor necrosis factor-alpha and interleukin-6 (IL-6) from these cells was also diminished. Thymocytes from ICE-/- mice were sensitive to apoptosis induced by dexamethasone or ionizing radiation, but were resistant to apoptosis induced by Fas antibody. Despite this defect in apoptosis, ICE-/- mice proceed normally through development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kuida, K -- Lippke, J A -- Ku, G -- Harding, M W -- Livingston, D J -- Su, M S -- Flavell, R A -- New York, N.Y. -- Science. 1995 Mar 31;267(5206):2000-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT 06510, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7535475" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/immunology ; Antigens, CD95 ; Antigens, Surface/immunology ; *Apoptosis/drug effects/radiation effects ; Base Sequence ; Caspase 1 ; Cells, Cultured ; Chimera ; Cysteine Endopeptidases/deficiency/*metabolism ; Cytokines/*metabolism ; Dexamethasone/pharmacology ; Female ; Interleukin-1/metabolism ; Lipopolysaccharides/pharmacology ; Male ; Mice ; Mice, Inbred C57BL ; Molecular Sequence Data ; Monocytes/*immunology ; Nigericin/pharmacology ; T-Lymphocytes/*cytology
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  • 91
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-11-24
    Description: Some growth factors are therapeutically useful partly because restricted expression of their receptors limits their action to particular cell types. However, no unique stimulatory factor is known for many clinically relevant cell types, such as CD34+ hematopoietic stem cells. Here, soluble alpha receptor (R alpha) components for interleukin-6 (IL-6) and ciliary neurotrophic factor (CNTF) were targeted in an active form to cells expressing surface markers such as CD34 or CD45, thereby rendering those cells responsive to IL-6 or CNTF. The targeting of R alpha components may provide the means to create "designer" cytokines that activate a desired cell type expressing a specific cell surface marker.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Economides, A N -- Ravetch, J V -- Yancopoulos, G D -- Stahl, N -- New York, N.Y. -- Science. 1995 Nov 24;270(5240):1351-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Regeneron Pharmaceuticals, Tarrytown, NY 10591, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481821" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Monoclonal ; Antigens, CD/immunology/*metabolism ; Antigens, CD34/analysis ; Antigens, CD45/analysis ; Cell Division ; Cell Line ; Cell Membrane/*metabolism ; Ciliary Neurotrophic Factor ; Cytokine Receptor gp130 ; *Growth Inhibitors ; Humans ; Immunoglobulin Fc Fragments ; Interleukin-6/*pharmacology ; Leukemia Inhibitory Factor ; Leukemia Inhibitory Factor Receptor alpha Subunit ; *Lymphokines ; Membrane Glycoproteins/metabolism ; Nerve Tissue Proteins/*pharmacology ; Phosphorylation ; Receptor, Ciliary Neurotrophic Factor ; Receptors, Cytokine/metabolism ; Receptors, Fc ; Receptors, Interleukin/immunology/*metabolism ; Receptors, Interleukin-6 ; Receptors, Nerve Growth Factor/immunology/*metabolism ; Receptors, OSM-LIF ; Recombinant Fusion Proteins/metabolism ; Solubility ; Tumor Cells, Cultured
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  • 92
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-09-22
    Description: NMDA (N-methyl-D-aspartate) receptors are selectively localized at the postsynaptic membrane of excitatory synapses in the mammalian brain. The molecular mechanisms underlying this localization were investigated by expressing the NR1 subunit of the NMDA receptor in fibroblasts. NR1 splice variants containing the first COOH-terminal exon cassette (NR1A and NR1D) were located in discrete, receptor-rich domains associated with the plasma membrane. NR1 splice variants lacking this exon cassette (NR1C and NR1E) were distributed throughout the cell, with large amounts of NR1 protein present in the cell interior. Insertion of this exon cassette into the COOH-terminus of the GluR1 AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate) receptor was sufficient to cause GluR1 to be localized to discrete, receptor-rich domains. Furthermore, protein kinase C phosphorylation of specific serines within this exon disrupted the receptor-rich domains. These results demonstrate that amino acid sequences contained within the NR1 molecule serve to localize this receptor subunit to discrete membrane domains in a manner that is regulated by alternative splicing and protein phosphorylation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ehlers, M D -- Tingley, W G -- Huganir, R L -- New York, N.Y. -- Science. 1995 Sep 22;269(5231):1734-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Howard Hughes Medical Institute, 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/7569904" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Cell Membrane/*metabolism ; Exons ; Fluorescent Antibody Technique ; Microscopy, Confocal ; Molecular Sequence Data ; Phosphorylation ; Protein Kinase C/metabolism ; Quail ; Receptors, AMPA/analysis ; Receptors, N-Methyl-D-Aspartate/chemistry/genetics/*metabolism ; Recombinant Fusion Proteins/chemistry/metabolism ; Serine/metabolism ; Subcellular Fractions/metabolism ; Tetradecanoylphorbol Acetate/pharmacology ; Transfection
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  • 93
    Publication Date: 1995-03-10
    Description: bcl-x is a member of the bcl-2 gene family, which may regulate programmed cell death. Mice were generated that lacked Bcl-x. The Bcl-x-deficient mice died around embryonic day 13. Extensive apoptotic cell death was evident in postmitotic immature neurons of the developing brain, spinal cord, and dorsal root ganglia. Hematopoietic cells in the liver were also apoptotic. Analyses of bcl-x double-knockout chimeric mice showed that the maturation of Bcl-x-deficient lymphocytes was diminished. The life-span of immature lymphocytes, but not mature lymphocytes, was shortened. Thus, Bcl-x functions to support the viability of immature cells during the development of the nervous and hematopoietic systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Motoyama, N -- Wang, F -- Roth, K A -- Sawa, H -- Nakayama, K -- Negishi, I -- Senju, S -- Zhang, Q -- Fujii, S -- New York, N.Y. -- Science. 1995 Mar 10;267(5203):1506-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Washington University School of Medicine, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7878471" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Apoptosis ; Bone Marrow Cells ; Brain/cytology/embryology ; Cell Differentiation ; Cell Survival ; Cells, Cultured ; Ganglia, Spinal/cytology/embryology ; Hematopoietic Stem Cells/*cytology ; Liver/cytology/embryology ; Lymphocytes/*cytology ; Mice ; Mice, Knockout ; Nerve Degeneration ; Neurons/*cytology ; Proto-Oncogene Proteins/deficiency/*physiology ; *Proto-Oncogene Proteins c-bcl-2 ; Spinal Cord/cytology/embryology ; Transfection ; bcl-X Protein
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  • 94
    Publication Date: 1995-03-24
    Description: Congenital lipoid adrenal hyperplasia is an autosomal recessive disorder that is characterized by impaired synthesis of all adrenal and gonadal steroid hormones. In three unrelated individuals with this disorder, steroidogenic acute regulatory protein, which enhances the mitochondrial conversion of cholesterol into pregnenolone, was mutated and nonfunctional, providing genetic evidence that this protein is indispensable normal adrenal and gonadal steroidogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, D -- Sugawara, T -- Strauss, J F 3rd -- Clark, B J -- Stocco, D M -- Saenger, P -- Rogol, A -- Miller, W L -- HD 06274/HD/NICHD NIH HHS/ -- HD 07688/HD/NICHD NIH HHS/ -- HD 28825/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1995 Mar 24;267(5205):1828-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, University of California, San Francisco 94143.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7892608" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Glands/*metabolism ; Adrenal Hyperplasia, Congenital/metabolism ; Amino Acid Sequence ; Animals ; Base Sequence ; Biological Transport/physiology ; Cell Line ; Cholesterol/*metabolism ; Female ; Gonads/*metabolism ; Haplorhini ; Hormones/*biosynthesis ; Humans ; Male ; Mitochondria/metabolism ; Molecular Sequence Data ; Phosphoproteins/genetics/*physiology ; Point Mutation ; Steroids/*biosynthesis ; Transfection
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  • 95
    Publication Date: 1995-06-09
    Description: The production of neurotrophin-4 (NT-4) in rat skeletal muscle was found to depend on muscle activity. The amounts of NT-4 messenger RNA present decreased after blockade of neuromuscular transmission with alpha-bungarotoxin and increased during postnatal development and after electrical stimulation in a dose-dependent manner. NT-4 immunoreactivity was detected in slow, type I muscle fibers. Intramuscular administration of NT-4 induced sprouting of intact adult motor nerves. Thus, muscle-derived NT-4 acted as an activity-dependent neurotrophic signal for growth and remodeling of adult motor neuron innervation. NT-4 may thus be partly responsible for the effects of exercise and electrical stimulation on neuromuscular performance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Funakoshi, H -- Belluardo, N -- Arenas, E -- Yamamoto, Y -- Casabona, A -- Persson, H -- Ibanez, C F -- New York, N.Y. -- Science. 1995 Jun 9;268(5216):1495-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7770776" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bungarotoxins/pharmacology ; Cell Line ; Electric Stimulation ; Gene Expression Regulation ; Motor Neurons/*physiology ; Muscle Denervation ; Muscle Development ; Muscle Fibers, Slow-Twitch/chemistry ; Muscle, Skeletal/chemistry/growth & development/innervation/*physiology ; Nerve Growth Factors/biosynthesis/genetics/pharmacology/*physiology ; Neuromuscular Junction/physiology ; RNA, Messenger/analysis/biosynthesis/genetics ; Rats ; Rats, Inbred F344 ; Receptor Protein-Tyrosine Kinases/metabolism ; Receptor, Nerve Growth Factor ; Receptor, trkB ; Receptors, Nerve Growth Factor/metabolism ; Receptors, Neuropeptide/metabolism ; Sciatic Nerve/physiology ; Synaptic Transmission
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  • 96
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-12-08
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balter, M -- New York, N.Y. -- Science. 1995 Dec 8;270(5242):1560-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7502059" target="_blank"〉PubMed〈/a〉
    Keywords: Antiviral Agents/*physiology ; CD4-Positive T-Lymphocytes/virology ; CD8-Positive T-Lymphocytes/*immunology ; Cell Line ; Chemokine CCL4 ; Chemokine CCL5/physiology ; Chemokines/*physiology ; HIV/*physiology ; HIV-1/physiology ; HIV-2/physiology ; Humans ; Interleukin-16 ; Lymphokines/*physiology ; Macrophage Inflammatory Proteins ; Monokines/physiology ; Virus Replication
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  • 97
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-10-27
    Description: There is increasing evidence that neurotrophins (NTs) are involved in processes of neuronal plasticity besides their well-established actions in regulating the survival, differentiation, and maintenance of functions of specific populations of neurons. Nerve growth factor, brain-derived neurotrophic factor, NT-4/5, and corresponding antibodies dramatically modify the development of the visual cortex. Although the neuronal elements involved have not yet been identified, complementary studies of other systems have demonstrated that NT synthesis is rapidly regulated by neuronal activity and that NTs are released in an activity-dependent manner from neuronal dendrites. These data, together with the observation that NTs enhance transmitter release from neurons that express the corresponding signal-transducing Trk receptors, suggest a role for NTs as selective retrograde messengers that regulate synaptic efficacy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thoenen, H -- New York, N.Y. -- Science. 1995 Oct 27;270(5236):593-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurochemistry, Max Planck Institute for Psychiatry, Martinsried, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7570017" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Brain-Derived Neurotrophic Factor ; Cells, Cultured ; Central Nervous System/cytology/metabolism ; Culture Techniques ; Long-Term Potentiation ; Nerve Growth Factors/metabolism/pharmacology/*physiology ; Nerve Tissue Proteins/metabolism/pharmacology/*physiology ; *Neuronal Plasticity ; Neurons/metabolism/*physiology ; Neurotransmitter Agents/metabolism ; Receptor Protein-Tyrosine Kinases/metabolism ; Synaptic Transmission/drug effects ; Visual Cortex/cytology/physiology
    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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  • 98
    Publication Date: 1995-06-16
    Description: Cells from patients with ataxia telangiectasia (AT) are hypersensitive to ionizing radiation and are defective in the regulation of DNA synthesis. A complementary DNA that corrects the radiation sensitivity and DNA synthesis defects in fibroblasts from an AT group D patient was isolated by expression cloning and shown to encode a truncated form of I kappa B-alpha, an inhibitor of the nuclear factor kappa B (NF-kappa B) transcriptional activator. The parental AT fibroblasts expressed large amounts of the I kappa B-alpha transcript and showed constitutive activation of NF-kappa B. The AT fibroblasts transfected with the truncated I kappa B-alpha expressed normal amounts of the I kappa B-alpha transcript and showed regulated activation of NF-kappa B. These results suggest that aberrant regulation of NF-kappa B and I kappa B-alpha contribute to the cellular defect in AT.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jung, M -- Zhang, Y -- Lee, S -- Dritschilo, A -- CA45408/CA/NCI NIH HHS/ -- R29 CA63023/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Jun 16;268(5217):1619-21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Radiation Medicine, Georgetown University School of Medicine, Washington, DC 20007, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7777860" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Ataxia Telangiectasia/*genetics/pathology/physiopathology ; Cell Line ; Cell Survival/radiation effects ; DNA/*biosynthesis ; DNA-Binding Proteins/*genetics/physiology ; Dose-Response Relationship, Radiation ; Genetic Complementation Test ; Humans ; *I-kappa B Proteins ; Molecular Sequence Data ; NF-kappa B/*antagonists & inhibitors/metabolism ; *Radiation Tolerance ; 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
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  • 99
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cohen, J -- New York, N.Y. -- Science. 1995 Jun 30;268(5219):1847-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7604255" target="_blank"〉PubMed〈/a〉
    Keywords: Acquired Immunodeficiency Syndrome/*complications ; Animals ; Cell Line ; DNA, Viral/*analysis ; Female ; Herpesviridae/*genetics ; Herpesviridae Infections/drug therapy/virology ; Humans ; Male ; Sarcoma, Kaposi/complications/therapy/*virology
    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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  • 100
    Publication Date: 1995-04-07
    Description: A single heterozygous nucleotide exchange in exon M2 of the gene encoding the parathyroid hormone-parathyroid hormone-related peptide (PTH-PTHrP) receptor was identified in a patient with Jansen-type metaphyseal chondrodysplasia, which changes a strictly conserved histidine residue at position 223 in the receptor's first intracellular loop to arginine. Constitutive, ligand-independent adenosine 3',5'-monophosphate accumulation was observed in COS-7 cells expressing the mutant PTH-PTHrP receptor but not in cells expressing the wild-type receptor. This finding explains the severe ligand-independent hypercalcemia and hypophosphatemia, and most likely the abnormal formation of endochondral bone, in this rare form of short-limbed dwarfism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schipani, E -- Kruse, K -- Juppner, H -- R01 46718/PHS HHS/ -- New York, N.Y. -- Science. 1995 Apr 7;268(5207):98-100.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Massachusetts General Hospital 02114, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7701349" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cell Line ; Cyclic AMP/metabolism ; DNA Mutational Analysis ; Dwarfism/*genetics ; Female ; Humans ; Inositol Phosphates/metabolism ; Male ; Molecular Sequence Data ; Osteochondrodysplasias/*genetics ; *Point Mutation ; Receptor, Parathyroid Hormone, Type 1 ; Receptors, Parathyroid Hormone/biosynthesis/*genetics/physiology ; Recombinant Proteins/biosynthesis ; Transfection
    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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