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  • 1
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    An activating immunoreceptor complex formed by NKG2D and DAP10 (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-31
    Description: Many immune receptors are composed of separate ligand-binding and signal-transducing subunits. In natural killer (NK) and T cells, DAP10 was identified as a cell surface adaptor protein in an activating receptor complex with NKG2D, a receptor for the stress-inducible and tumor-associated major histocompatibility complex molecule MICA. Within the DAP10 cytoplasmic domain, an Src homology 2 (SH2) domain-binding site was capable of recruiting the p85 subunit of the phosphatidylinositol 3-kinase (PI 3-kinase), providing for NKG2D-dependent signal transduction. Thus, NKG2D-DAP10 receptor complexes may activate NK and T cell responses against MICA-bearing tumors.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, J -- Song, Y -- Bakker, A B -- Bauer, S -- Spies, T -- Lanier, L L -- Phillips, J H -- AI30581/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 30;285(5428):730-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉DNAX Research Institute, 901 California Avenue, Palo Alto, CA 94304, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10426994" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Cell Line ; Cytotoxicity, Immunologic ; Humans ; Killer Cells, Natural/*immunology/metabolism ; Ligands ; *Lymphocyte Activation ; Membrane Proteins/chemistry/genetics/*metabolism ; Mice ; Molecular Sequence Data ; NK Cell Lectin-Like Receptor Subfamily K ; Neoplasms/immunology ; Phosphatidylinositol 3-Kinases/metabolism ; Phosphorylation ; Phosphotyrosine/metabolism ; Receptors, Immunologic/chemistry/genetics/*metabolism ; Receptors, Natural Killer Cell ; Signal Transduction ; T-Lymphocytes/*immunology/metabolism ; Tumor Cells, Cultured ; src Homology Domains
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Activation of NK cells and T cells by NKG2D, a receptor for stress-inducible MICA (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-31
    Description: Stress-inducible MICA, a distant homolog of major histocompatibility complex (MHC) class I, functions as an antigen for gammadelta T cells and is frequently expressed in epithelial tumors. A receptor for MICA was detected on most gammadelta T cells, CD8+ alphabeta T cells, and natural killer (NK) cells and was identified as NKG2D. Effector cells from all these subsets could be stimulated by ligation of NKG2D. Engagement of NKG2D activated cytolytic responses of gammadelta T cells and NK cells against transfectants and epithelial tumor cells expressing MICA. These results define an activating immunoreceptor-MHC ligand interaction that may promote antitumor NK and T cell responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bauer, S -- Groh, V -- Wu, J -- Steinle, A -- Phillips, J H -- Lanier, L L -- Spies, T -- P01 CA18221/CA/NCI NIH HHS/ -- R01 AI30581/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 30;285(5428):727-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fred Hutchinson Cancer Research Center, Clinical Research Division, 1100 Fairview Avenue North, Seattle, WA 98109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10426993" target="_blank"〉PubMed〈/a〉
    Keywords: Cytotoxicity, Immunologic ; Histocompatibility Antigens Class I/*immunology/metabolism ; Humans ; Jurkat Cells ; Killer Cells, Natural/*immunology ; Ligands ; *Lymphocyte Activation ; Lymphocyte Subsets/immunology ; Membrane Proteins/metabolism ; NK Cell Lectin-Like Receptor Subfamily K ; Receptors, Antigen, T-Cell, gamma-delta/immunology ; Receptors, Immunologic/chemistry/genetics/*immunology/metabolism ; Receptors, Natural Killer Cell ; Signal Transduction ; T-Lymphocytes/*immunology ; Transfection ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Membrane anchoring of a human IgG Fc receptor (CD16) determined by a single amino acid (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-12-22
    Description: CD16 is a low-affinity immunoglobulin G (IgG) Fc receptor that is expressed on natural killer (NK) cells, granulocytes, activated macrophages, and some T lymphocytes. Two similar genes, CD16-I and CD16-II, encode membrane glycoproteins that are anchored by phosphatidylinositol (PI)-glycan and transmembrane polypeptides, respectively. The primary structural requirements for PI-linkage were examined by constructing a series of hybrid cDNA molecules. Although both cDNA's have an identical COOH-terminal hydrophobic segment, CD16-I has Ser203 whereas CD16-II has Phe203. Conversion of Phe to Ser in CD16-II permits expression of a PI-glycan-anchored glycoprotein, whereas conversion of Ser to Phe in CD16-I prevents PI-glycan linkage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lanier, L L -- Cwirla, S -- Yu, G -- Testi, R -- Phillips, J H -- New York, N.Y. -- Science. 1989 Dec 22;246(4937):1611-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Becton Dickinson Monoclonal Center, Inc., Mountain View, CA 94043.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2531919" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD/*genetics ; Antigens, Differentiation/*genetics/metabolism ; Base Sequence ; Cell Line ; Cell Membrane/immunology ; Codon/genetics ; *Genes, Immunoglobulin ; Granulocytes/immunology ; Humans ; Membrane Glycoproteins/*genetics ; Molecular Sequence Data ; *Phenylalanine ; Receptors, Fc/*genetics/metabolism ; Receptors, IgG ; *Serine ; 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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  • 4
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    Superantigen-dependent, cell-mediated cytotoxicity inhibited by MHC class I receptors on T lymphocytes (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-04-21
    Description: Bacterial superantigens bind with high affinity to major histocompatibility complex (MHC) class II antigens on antigen-presenting cells and with T cell antigen receptor (TCR) beta chains on T lymphocytes, which results in the T cell activation responsible for toxic shock syndrome and food poisoning. Many cytotoxic T lymphocyte (CTL) clones were shown to have receptors for human leukocyte antigen (HLA) class I molecules that inhibited superantigen-induced cytotoxicity against appropriate class I-bearing target cells. One type of inhibitory receptor, NKB1, was present on CD4+ and CD8+TCR alpha beta+ CTL clones and blocked the killing of staphylococcal enterotoxin B (SEB)-coated targets bearing certain polymorphic HLA-B molecules. Expression of HLA-A, -B, and -C molecules on the SEB-coated targets also protected against cytolysis mediated by many NKB1-negative T cell clones, suggesting the presence of additional inhibitory MHC class I receptors. These HLA class I receptors may limit tissue destruction and possibly autoimmunity caused by activated T lymphocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Phillips, J H -- Gumperz, J E -- Parham, P -- Lanier, L L -- AI22039/AI/NIAID NIH HHS/ -- GM07276/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Apr 21;268(5209):403-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Immunology, DNAX Research Institute of Molecular and Cellular Biology, Palo Alto, CA 94304, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7716542" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; *Cytotoxicity, Immunologic ; Enterotoxins/immunology ; HLA-A Antigens/immunology ; HLA-B Antigens/immunology ; HLA-C Antigens/immunology ; Humans ; Receptors, Antigen, T-Cell/*immunology ; Receptors, Antigen, T-Cell, alpha-beta/immunology ; Receptors, Immunologic/*immunology ; Receptors, KIR ; Receptors, KIR3DL1 ; Superantigens/*immunology ; T-Lymphocytes, Cytotoxic/*immunology ; 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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  • 5
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    Polychlorinated biphenyls: transfer from microparticulates to marine phytoplankton and the effects on photosynthesis (1978)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1978-12-15
    Description: Polychlorinated biphenyls (PCB's) initially associated with microparticulates are incorporated into marine diatom cells. The time course of transfer is rapid; equilibrium is attained within several hours. Assays with chlorophyll a fluorescence in vivo indicate that the transferred PCB's reach sites in the photosynthetic machinery that are sensitive to the effects of these compounds.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harding, L W Jr -- Phillips, J H Jr -- New York, N.Y. -- Science. 1978 Dec 15;202(4373):1189-92.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17735404" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Electronic Resource
    Electronic Resource
    Determination of Carbon in Sodium-Potassium Alloy (1955)
    s.l. : American Chemical Society
    Analytical chemistry 27 (1955), S. 773-776 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60101a022
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  • 7
    Electronic Resource
    Electronic Resource
    Polychlorinated biphenyl (PCB) effects on marine phytoplankton photosynthesis and cell division (1978)
    Springer
    Marine biology 49 (1978), S. 93-101 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Inhibition of photosynthesis and cell division by polychlorinated biphenyls (PCBs) was studied using 7 marine phytoplankton species representing 4 algal classes. PCB concentrations as low as 1.0 μg l-1 reduced cell division of Thalassiosira pseudonana 3H and Isochrysis galbana. Both photosynthesis and cell division of T. pseudonana 3H, Chaetoceros socialis, Skeletonema costatum, T. pseudonana 13-1, Monochrysis, lutheri and I. galbana were inhibited at a PCB concentration of 10.0 μg l-1. The effects on photosynthesis were immediate and probably resulted in reduced rates of cell division. Interspecific differences in susceptibility were observed. These differences have significance with respect to primary production and the species composition of phytoplankton communities. The initial slopes of photosynthesis-irradiance (P-I) curves for the diatoms S. costatum and T. pseudonana 3H were reduced in the presence of PCBs. These results suggest that PCBs affect the photosynthetic light reactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00387108
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  • 8
    Electronic Resource
    Electronic Resource
    Polychlorinated biphenyl (PCB) uptake by marine phytoplankton (1978)
    Springer
    Marine biology 49 (1978), S. 103-111 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The time-courses of uptake for 2,4,5,2′,5′-pentachlorobiphenyl (PCB) by 11 marine phytoplankton species were measured and found to be rapid, with equilibration occurring within 0.5 to 2.0 h. These data were described with the empirical Freundlich adsorption isotherm. The relationship between cell density and accumulation of PCBs was also investigated. Concentration factors on a volume per volume basis ranged from 1.23x104 to 2.41x106 for the 11 algal species examined. These values are comparable in magnitude to factors reported previously for phytoplankton in natural marine systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00387109
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  • 9
    Electronic Resource
    Electronic Resource
    Evidence for a K+ channel in bovine chromaffin granule membranes: single-channel properties and possible bioenergetic significance (1994)
    Springer
    European biophysics journal 23 (1994), S. 263-275 
    Details
    ISSN: 1432-1017
    Keywords: K+ channel ; Chromaffn granule ; Membrane reconstitution ; Planar bilayer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Abstract A K+ channel was incorporated into voltage-clamped planar lipid bilayers from bovine chromaffin granules and resealed granule membranes (“ghosts”). It was not incorporated from plasma membrane-rich fractions from the adrenal medulla. The channel had a conductance of ∼ 400 pS in symmetric 450 mM KCI, with the permeability sequence K+ 〉 Rb+ 〉 Cs+ 〉 Na+ 〉 Li+, and was insensitive to both Ca2+ and charybdotoxin. It exhibited complex gating kinetics, consistent with the presence of multiple open and closed states, and its gating was voltage-dependent. The channels appeared to incorporate into bilayers with the same orientation, and were blocked from one side (the side of vesicle addition) by 0.2-1 mM TEA'. The block was slightly voltage-dependent. Acidification of resealed granule membranes in response to external ATP (which activated the vacuolartype ATPase) was significantly reduced in the presence of 1 mM intralumenal TEACI (with 9 mM KCl), and parallel measurements with the potential-sensitive dye Oxonol V showed that such vesicles tended to develop higher internal-positive membrane potentials than control vesicles containing only 10 mM KCI. 1 mM TEA+ had no effect on proton-pumping activity when applied externally, and did not directly affect either the proton-pumping or ATP hydrolytic activity of the partially-purified ATPase. These results suggest that chromaffin granule membranes contain a TEA+-sensitive K+ channel which may have a role in regulating the vesicle membrane potential.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00213576
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  • 10
    Electronic Resource
    Electronic Resource
    Association of actin and myosin with secretory granule membranes (1975)
    [s.l.] : Nature Publishing Group
    Nature 254 (1975), S. 526-529 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Chromaffin granules, the catecholamine-containing vesicles of the adrenal medulla, are homologous in origin to the synaptic vesicles of sympathetic nerve cells. Both contain antigenically identical storage proteins10 and similar membrane enzymes11. Bovine chromaffin granules are easily purified12 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/254526a0
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