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  • 1
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    Inducible nitric oxide synthase binds, S-nitrosylates, and activates cyclooxygenase-2 (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2005-12-24
    Beschreibung: Cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) are two major inflammatory mediators. Here we show that iNOS specifically binds to COX-2 and S-nitrosylates it, enhancing COX-2 catalytic activity. Selectively disrupting iNOS-COX-2 binding prevented NO-mediated activation of COX-2. This synergistic molecular interaction between two inflammatory systems may inform the development of anti-inflammatory drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Sangwon F -- Huri, Daniel A -- Snyder, Solomon H -- DA000266/DA/NIDA NIH HHS/ -- DA00074/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 2005 Dec 23;310(5756):1966-70.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Johns Hopkins University School of Medicine, 725 North Wolfe Street, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16373578" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Biotin/metabolism ; Catalysis ; Cell Line ; Cyclooxygenase 2/*metabolism ; Cysteine/metabolism ; Dinoprostone/metabolism ; Enzyme Activation ; Humans ; Mice ; Nitric Oxide Donors/metabolism ; Nitric Oxide Synthase Type II/*metabolism ; Nitroso Compounds/*metabolism ; Protein Binding ; S-Nitrosoglutathione/metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Environmental epigenomics meeting. Supplements restore gene function via methylation (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2005-12-17
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2005 Dec 16;310(5755):1761.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16357241" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Axin Protein ; Body Patterning/drug effects/genetics ; *DNA Methylation ; DNA Transposable Elements ; *Dietary Supplements ; Embryonic Development/drug effects/*genetics ; *Epigenesis, Genetic ; Female ; Folic Acid/*administration & dosage/pharmacology ; Gene Expression Regulation, Developmental/*drug effects ; Mice ; Pregnancy ; Repressor Proteins/genetics ; Tail/embryology ; Vitamin B Complex/*administration & dosage/pharmacology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    SLC24A5, a putative cation exchanger, affects pigmentation in zebrafish and humans (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2005-12-17
    Beschreibung: Lighter variations of pigmentation in humans are associated with diminished number, size, and density of melanosomes, the pigmented organelles of melanocytes. Here we show that zebrafish golden mutants share these melanosomal changes and that golden encodes a putative cation exchanger slc24a5 (nckx5) that localizes to an intracellular membrane, likely the melanosome or its precursor. The human ortholog is highly similar in sequence and functional in zebrafish. The evolutionarily conserved ancestral allele of a human coding polymorphism predominates in African and East Asian populations. In contrast, the variant allele is nearly fixed in European populations, is associated with a substantial reduction in regional heterozygosity, and correlates with lighter skin pigmentation in admixed populations, suggesting a key role for the SLC24A5 gene in human pigmentation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lamason, Rebecca L -- Mohideen, Manzoor-Ali P K -- Mest, Jason R -- Wong, Andrew C -- Norton, Heather L -- Aros, Michele C -- Jurynec, Michael J -- Mao, Xianyun -- Humphreville, Vanessa R -- Humbert, Jasper E -- Sinha, Soniya -- Moore, Jessica L -- Jagadeeswaran, Pudur -- Zhao, Wei -- Ning, Gang -- Makalowska, Izabela -- McKeigue, Paul M -- O'donnell, David -- Kittles, Rick -- Parra, Esteban J -- Mangini, Nancy J -- Grunwald, David J -- Shriver, Mark D -- Canfield, Victor A -- Cheng, Keith C -- CA73935/CA/NCI NIH HHS/ -- EY11308/EY/NEI NIH HHS/ -- HD37572/HD/NICHD NIH HHS/ -- HD40179/HD/NICHD NIH HHS/ -- HG002154/HG/NHGRI NIH HHS/ -- HL077910/HL/NHLBI NIH HHS/ -- RR017441/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2005 Dec 16;310(5755):1782-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Jake Gittlen Cancer Research Foundation, Department of Pathology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16357253" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): African Americans/genetics ; African Continental Ancestry Group/genetics ; Alanine/genetics ; Alleles ; Amino Acid Sequence ; Animals ; Antiporters/chemistry/*genetics/physiology ; Asian Continental Ancestry Group/genetics ; Biological Evolution ; Calcium/metabolism ; European Continental Ancestry Group/genetics ; Gene Frequency ; Genes ; Genetic Variation ; Haplotypes ; Heterozygote ; Humans ; Ion Transport ; Melanins/analysis ; Melanosomes/chemistry/ultrastructure ; Mice ; Molecular Sequence Data ; Multifactorial Inheritance ; Mutation ; Pigment Epithelium of Eye/chemistry/ultrastructure ; Polymorphism, Single Nucleotide ; Selection, Genetic ; Skin Pigmentation/*genetics ; Threonine/genetics ; Zebrafish/embryology/*genetics/metabolism ; Zebrafish Proteins/chemistry/*genetics/physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    Spongiform diseases. Waiting for the final experiment (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2005-12-17
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enserink, Martin -- New York, N.Y. -- Science. 2005 Dec 16;310(5755):1758.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16357238" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cricetinae ; Humans ; Mice ; PrPC Proteins/*chemistry ; PrPSc Proteins/*chemistry/*pathogenicity ; Prion Diseases/*etiology ; Protein Folding
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 5
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    Multistep synthesis of a radiolabeled imaging probe using integrated microfluidics (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2005-12-17
    Beschreibung: Microreactor technology has shown potential for optimizing synthetic efficiency, particularly in preparing sensitive compounds. We achieved the synthesis of an [(18)F]fluoride-radiolabeled molecular imaging probe, 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG), in an integrated microfluidic device. Five sequential processes-[18F]fluoride concentration, water evaporation, radiofluorination, solvent exchange, and hydrolytic deprotection-proceeded with high radio-chemical yield and purity and with shorter synthesis time relative to conventional automated synthesis. Multiple doses of [18F]FDG for positron emission tomography imaging studies in mice were prepared. These results, which constitute a proof of principle for automated multistep syntheses at the nanogram to microgram scale, could be generalized to a range of radiolabeled substrates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Chung-Cheng -- Sui, Guodong -- Elizarov, Arkadij -- Shu, Chengyi Jenny -- Shin, Young-Shik -- Dooley, Alek N -- Huang, Jiang -- Daridon, Antoine -- Wyatt, Paul -- Stout, David -- Kolb, Hartmuth C -- Witte, Owen N -- Satyamurthy, Nagichettiar -- Heath, James R -- Phelps, Michael E -- Quake, Stephen R -- Tseng, Hsian-Rong -- 5T32-GM07616/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2005 Dec 16;310(5755):1793-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioengineering, California Institute of Technology, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16357255" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Automation ; Fluorides ; Fluorodeoxyglucose F18/*chemical synthesis ; Gas Chromatography-Mass Spectrometry ; Mice ; *Microfluidics ; Miniaturization ; Molecular Probes/*chemical synthesis ; Positron-Emission Tomography ; Radiopharmaceuticals/*chemical synthesis ; Rhabdomyosarcoma/radionuclide imaging ; Solvents ; Tomography, Emission-Computed
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
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    The snoRNA HBII-52 regulates alternative splicing of the serotonin receptor 2C (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2005-12-17
    Beschreibung: The Prader-Willi syndrome is a congenital disease that is caused by the loss of paternal gene expression from a maternally imprinted region on chromosome 15. This region contains a small nucleolar RNA (snoRNA), HBII-52, that exhibits sequence complementarity to the alternatively spliced exon Vb of the serotonin receptor 5-HT(2C)R. We found that HBII-52 regulates alternative splicing of 5-HT(2C)R by binding to a silencing element in exon Vb. Prader-Willi syndrome patients do not express HBII-52. They have different 5-HT(2C)R messenger RNA (mRNA) isoforms than healthy individuals. Our results show that a snoRNA regulates the processing of an mRNA expressed from a gene located on a different chromosome, and the results indicate that a defect in pre-mRNA processing contributes to the Prader-Willi syndrome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kishore, Shivendra -- Stamm, Stefan -- N01-HD-1-3138/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2006 Jan 13;311(5758):230-2. Epub 2005 Dec 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Biochemie, Emil-Fischer-Zentrum, Friedrich-Alexander Universitat Erlangen-Nurnberg, Fahrstrasse 17, 91054 Erlangen, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16357227" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Alternative Splicing ; Animals ; Cell Line ; Chromosomes, Human, Pair 15 ; Chromosomes, Human, X ; Conserved Sequence ; Exons ; Humans ; Mice ; Prader-Willi Syndrome/*genetics ; Protein Isoforms/genetics ; RNA, Small Nucleolar/*physiology ; Rats ; Receptor, Serotonin, 5-HT2C/*genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
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    Increase in activity during calorie restriction requires Sirt1 (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2005-12-13
    Beschreibung: Sir2 (silent information regulator 2) is a nicotinamide adenine dinucleotide-dependent deacetylase required for longevity due to calorie restriction in yeast and Drosophila. In mammals, calorie restriction induces a complex pattern of physiological and behavioral changes. Here we report that the mammalian Sir2 ortholog, Sirt1, is required for the induction of a phenotype by calorie restriction in mice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Danica -- Steele, Andrew D -- Lindquist, Susan -- Guarente, Leonard -- AG11119/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2005 Dec 9;310(5754):1641.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16339438" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Caloric Restriction ; Eating ; Mice ; Mice, Knockout ; *Motor Activity ; Movement ; Sirtuin 1 ; Sirtuins/genetics/*physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
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    Neuroscience. Synaptic membranes bend to the will of a neurotoxin (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2005-12-13
    Beschreibung: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zimmerberg, Joshua -- Chernomordik, Leonid V -- New York, N.Y. -- Science. 2005 Dec 9;310(5754):1626-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cellular and Molecular Biophysics, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892-1855, USA. joshz@helix.nih.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16339436" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Exocytosis ; Fatty Acids/*metabolism ; Hydrolysis ; Lipid Bilayers ; Lysophospholipids/*metabolism ; Membrane Fusion ; Membrane Lipids/analysis/metabolism ; Mice ; Micelles ; Neuromuscular Junction/drug effects/physiology ; Neurotoxins/metabolism/toxicity ; Neurotransmitter Agents/metabolism ; Phospholipases A/*metabolism/toxicity ; Synaptic Membranes/chemistry/*physiology ; Synaptic Vesicles/physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 9
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    Equivalent effects of snake PLA2 neurotoxins and lysophospholipid-fatty acid mixtures (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2005-12-13
    Beschreibung: Snake presynaptic phospholipase A2 neurotoxins (SPANs) paralyze the neuromuscular junction (NMJ). Upon intoxication, the NMJ enlarges and has a reduced content of synaptic vesicles, and primary neuronal cultures show synaptic swelling with surface exposure of the lumenal domain of the synaptic vesicle protein synaptotagmin I. Concomitantly, these neurotoxins induce exocytosis of neurotransmitters. We found that an equimolar mixture of lysophospholipids and fatty acids closely mimics all of the biological effects of SPANs. These results draw attention to the possible role of local lipid changes in synaptic vesicle release and provide new tools for the study of exocytosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rigoni, Michela -- Caccin, Paola -- Gschmeissner, Steve -- Koster, Grielof -- Postle, Anthony D -- Rossetto, Ornella -- Schiavo, Giampietro -- Montecucco, Cesare -- GP0272Y01/Telethon/Italy -- New York, N.Y. -- Science. 2005 Dec 9;310(5754):1678-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biomedical Sciences and Consiglio Nazionale Ricerche Institute of Neuroscience, University of Padova, Italy.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16339444" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cells, Cultured ; Elapid Venoms/toxicity ; Esterification ; Exocytosis ; Fatty Acids/*metabolism/toxicity ; Glutamic Acid/metabolism ; Hydrolysis ; Kinetics ; Lipid Bilayers ; Lysophospholipids/*metabolism/toxicity ; Male ; Mass Spectrometry ; Membrane Fusion ; Membrane Lipids/metabolism ; Mice ; Neuromuscular Junction/drug effects/metabolism/physiology ; Neurons/drug effects/metabolism/ultrastructure ; Neurotoxins/*metabolism/toxicity ; Neurotransmitter Agents/metabolism ; Phospholipases A/*metabolism/toxicity ; Phospholipases A2 ; Synapses/drug effects/ultrastructure ; Synaptic Membranes/metabolism/*physiology ; Synaptic Vesicles/drug effects/physiology/ultrastructure
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
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    A clonogenic bone marrow progenitor specific for macrophages and dendritic cells (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2005-12-03
    Beschreibung: Macrophages and dendritic cells (DCs) are crucial for immune and inflammatory responses and belong to a network of cells that has been termed the mononuclear phagocyte system (MPS). However, the origin and lineage of these cells remain poorly understood. Here, we describe the isolation and clonal analysis of a mouse bone marrow progenitor that is specific for monocytes, several macrophage subsets, and resident spleen DCs in vivo. It was also possible to recapitulate this differentiation in vitro by using treatment with the cytokines macrophage colony-stimulating factor and granulocyte-macrophage colony-stimulating factor. Thus, macrophages and DCs appear to renew from a common progenitor, providing a cellular and molecular basis for the concept of the MPS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fogg, Darin K -- Sibon, Claire -- Miled, Chaouki -- Jung, Steffen -- Aucouturier, Pierre -- Littman, Dan R -- Cumano, Ana -- Geissmann, Frederic -- A133856/PHS HHS/ -- G0900867/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2006 Jan 6;311(5757):83-7. Epub 2005 Dec 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM, Laboratory of Mononuclear Phagocyte Biology, Avenir Team, Necker Enfants Malades Institute, 75015 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16322423" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cell Differentiation ; Cell Lineage ; Cell Separation ; Clone Cells ; Colony-Stimulating Factors/pharmacology ; Dendritic Cells/*cytology ; Flow Cytometry ; Granulocyte Colony-Stimulating Factor/pharmacology ; Hematopoietic Stem Cell Transplantation ; Macrophage Colony-Stimulating Factor/pharmacology ; Macrophages/*cytology ; Mice ; Mice, Inbred C57BL ; Myeloid Progenitor Cells/*cytology/immunology ; Proto-Oncogene Proteins c-kit/analysis ; Receptors, Cytokine/analysis ; Receptors, HIV/analysis ; Recombinant Proteins ; Spleen/cytology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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