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  • Lunar and Planetary Science and Exploration  (243)
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  • 1
    Publikationsdatum: 2014-03-29
    Beschreibung: Regulated transcription controls the diversity, developmental pathways and spatial organization of the hundreds of cell types that make up a mammal. Using single-molecule cDNA sequencing, we mapped transcription start sites (TSSs) and their usage in human and mouse primary cells, cell lines and tissues to produce a comprehensive overview of mammalian gene expression across the human body. We find that few genes are truly 'housekeeping', whereas many mammalian promoters are composite entities composed of several closely separated TSSs, with independent cell-type-specific expression profiles. TSSs specific to different cell types evolve at different rates, whereas promoters of broadly expressed genes are the most conserved. Promoter-based expression analysis reveals key transcription factors defining cell states and links them to binding-site motifs. The functions of identified novel transcripts can be predicted by coexpression and sample ontology enrichment analyses. The functional annotation of the mammalian genome 5 (FANTOM5) project provides comprehensive expression profiles and functional annotation of mammalian cell-type-specific transcriptomes with wide applications in biomedical research.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4529748/" 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/PMC4529748/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉FANTOM Consortium and the RIKEN PMI and CLST (DGT) -- Forrest, Alistair R R -- Kawaji, Hideya -- Rehli, Michael -- Baillie, J Kenneth -- de Hoon, Michiel J L -- Haberle, Vanja -- Lassmann, Timo -- Kulakovskiy, Ivan V -- Lizio, Marina -- Itoh, Masayoshi -- Andersson, Robin -- Mungall, Christopher J -- Meehan, Terrence F -- Schmeier, Sebastian -- Bertin, Nicolas -- Jorgensen, Mette -- Dimont, Emmanuel -- Arner, Erik -- Schmidl, Christian -- Schaefer, Ulf -- Medvedeva, Yulia A -- Plessy, Charles -- Vitezic, Morana -- Severin, Jessica -- Semple, Colin A -- Ishizu, Yuri -- Young, Robert S -- Francescatto, Margherita -- Alam, Intikhab -- Albanese, Davide -- Altschuler, Gabriel M -- Arakawa, Takahiro -- Archer, John A C -- Arner, Peter -- Babina, Magda -- Rennie, Sarah -- Balwierz, Piotr J -- Beckhouse, Anthony G -- Pradhan-Bhatt, Swati -- Blake, Judith A -- Blumenthal, Antje -- Bodega, Beatrice -- Bonetti, Alessandro -- Briggs, James -- Brombacher, Frank -- Burroughs, A Maxwell -- Califano, Andrea -- Cannistraci, Carlo V -- Carbajo, Daniel -- Chen, Yun -- Chierici, Marco -- Ciani, Yari -- Clevers, Hans C -- Dalla, Emiliano -- Davis, Carrie A -- Detmar, Michael -- Diehl, Alexander D -- Dohi, Taeko -- Drablos, Finn -- Edge, Albert S B -- Edinger, Matthias -- Ekwall, Karl -- Endoh, Mitsuhiro -- Enomoto, Hideki -- Fagiolini, Michela -- Fairbairn, Lynsey -- Fang, Hai -- Farach-Carson, Mary C -- Faulkner, Geoffrey J -- Favorov, Alexander V -- Fisher, Malcolm E -- Frith, Martin C -- Fujita, Rie -- Fukuda, Shiro -- Furlanello, Cesare -- Furino, Masaaki -- Furusawa, Jun-ichi -- Geijtenbeek, Teunis B -- Gibson, Andrew P -- Gingeras, Thomas -- Goldowitz, Daniel -- Gough, Julian -- Guhl, Sven -- Guler, Reto -- Gustincich, Stefano -- Ha, Thomas J -- Hamaguchi, Masahide -- Hara, Mitsuko -- Harbers, Matthias -- Harshbarger, Jayson -- Hasegawa, Akira -- Hasegawa, Yuki -- Hashimoto, Takehiro -- Herlyn, Meenhard -- Hitchens, Kelly J -- Ho Sui, Shannan J -- Hofmann, Oliver M -- Hoof, Ilka -- Hori, Furni -- Huminiecki, Lukasz -- Iida, Kei -- Ikawa, Tomokatsu -- Jankovic, Boris R -- Jia, Hui -- Joshi, Anagha -- Jurman, Giuseppe -- Kaczkowski, Bogumil -- Kai, Chieko -- Kaida, Kaoru -- Kaiho, Ai -- Kajiyama, Kazuhiro -- Kanamori-Katayama, Mutsumi -- Kasianov, Artem S -- Kasukawa, Takeya -- Katayama, Shintaro -- Kato, Sachi -- Kawaguchi, Shuji -- Kawamoto, Hiroshi -- Kawamura, Yuki I -- Kawashima, Tsugumi -- Kempfle, Judith S -- Kenna, Tony J -- Kere, Juha -- Khachigian, Levon M -- Kitamura, Toshio -- Klinken, S Peter -- Knox, Alan J -- Kojima, Miki -- Kojima, Soichi -- Kondo, Naoto -- Koseki, Haruhiko -- Koyasu, Shigeo -- Krampitz, Sarah -- Kubosaki, Atsutaka -- Kwon, Andrew T -- Laros, Jeroen F J -- Lee, Weonju -- Lennartsson, Andreas -- Li, Kang -- Lilje, Berit -- Lipovich, Leonard -- Mackay-Sim, Alan -- Manabe, Ri-ichiroh -- Mar, Jessica C -- Marchand, Benoit -- Mathelier, Anthony -- Mejhert, Niklas -- Meynert, Alison -- Mizuno, Yosuke -- de Lima Morais, David A -- Morikawa, Hiromasa -- Morimoto, Mitsuru -- Moro, Kazuyo -- Motakis, Efthymios -- Motohashi, Hozumi -- Mummery, Christine L -- Murata, Mitsuyoshi -- Nagao-Sato, Sayaka -- Nakachi, Yutaka -- Nakahara, Fumio -- Nakamura, Toshiyuki -- Nakamura, Yukio -- Nakazato, Kenichi -- van Nimwegen, Erik -- Ninomiya, Noriko -- Nishiyori, Hiromi -- Noma, Shohei -- Noazaki, Tadasuke -- Ogishima, Soichi -- Ohkura, Naganari -- Ohimiya, Hiroko -- Ohno, Hiroshi -- Ohshima, Mitsuhiro -- Okada-Hatakeyama, Mariko -- Okazaki, Yasushi -- Orlando, Valerio -- Ovchinnikov, Dmitry A -- Pain, Arnab -- Passier, Robert -- Patrikakis, Margaret -- Persson, Helena -- Piazza, Silvano -- Prendergast, James G D -- Rackham, Owen J L -- Ramilowski, Jordan A -- Rashid, Mamoon -- Ravasi, Timothy -- Rizzu, Patrizia -- Roncador, Marco -- Roy, Sugata -- Rye, Morten B -- Saijyo, Eri -- Sajantila, Antti -- Saka, Akiko -- Sakaguchi, Shimon -- Sakai, Mizuho -- Sato, Hiroki -- Savvi, Suzana -- Saxena, Alka -- Schneider, Claudio -- Schultes, Erik A -- Schulze-Tanzil, Gundula G -- Schwegmann, Anita -- Sengstag, Thierry -- Sheng, Guojun -- Shimoji, Hisashi -- Shimoni, Yishai -- Shin, Jay W -- Simon, Christophe -- Sugiyama, Daisuke -- Sugiyama, Takaai -- Suzuki, Masanori -- Suzuki, Naoko -- Swoboda, Rolf K -- 't Hoen, Peter A C -- Tagami, Michihira -- Takahashi, Naoko -- Takai, Jun -- Tanaka, Hiroshi -- Tatsukawa, Hideki -- Tatum, Zuotian -- Thompson, Mark -- Toyodo, Hiroo -- Toyoda, Tetsuro -- Valen, Elvind -- van de Wetering, Marc -- van den Berg, Linda M -- Verado, Roberto -- Vijayan, Dipti -- Vorontsov, Ilya E -- Wasserman, Wyeth W -- Watanabe, Shoko -- Wells, Christine A -- Winteringham, Louise N -- Wolvetang, Ernst -- Wood, Emily J -- Yamaguchi, Yoko -- Yamamoto, Masayuki -- Yoneda, Misako -- Yonekura, Yohei -- Yoshida, Shigehiro -- Zabierowski, Susan E -- Zhang, Peter G -- Zhao, Xiaobei -- Zucchelli, Silvia -- Summers, Kim M -- Suzuki, Harukazu -- Daub, Carsten O -- Kawai, Jun -- Heutink, Peter -- Hide, Winston -- Freeman, Tom C -- Lenhard, Boris -- Bajic, Vladimir B -- Taylor, Martin S -- Makeev, Vsevolod J -- Sandelin, Albin -- Hume, David A -- Carninci, Piero -- Hayashizaki, Yoshihide -- BB/F003722/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/G022771/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/I001107/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- MC_PC_U127597124/Medical Research Council/United Kingdom -- MC_UP_1102/1/Medical Research Council/United Kingdom -- R01 DE022969/DE/NIDCR NIH HHS/ -- R01 GM084875/GM/NIGMS NIH HHS/ -- England -- Nature. 2014 Mar 27;507(7493):462-70. doi: 10.1038/nature13182.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24670764" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; *Atlases as Topic ; Cell Line ; Cells, Cultured ; Cluster Analysis ; Conserved Sequence/genetics ; Gene Expression Regulation/genetics ; Gene Regulatory Networks/genetics ; Genes, Essential/genetics ; Genome/genetics ; Humans ; Mice ; *Molecular Sequence Annotation ; Open Reading Frames/genetics ; Organ Specificity ; Promoter Regions, Genetic/*genetics ; RNA, Messenger/analysis/genetics ; Transcription Factors/metabolism ; Transcription Initiation Site ; Transcription, Genetic/genetics ; Transcriptome/*genetics
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 2014-02-21
    Beschreibung: Members of the nuclear factor-kappaB (NF-kappaB) family of transcriptional regulators are central mediators of the cellular inflammatory response. Although constitutive NF-kappaB signalling is present in most human tumours, mutations in pathway members are rare, complicating efforts to understand and block aberrant NF-kappaB activity in cancer. Here we show that more than two-thirds of supratentorial ependymomas contain oncogenic fusions between RELA, the principal effector of canonical NF-kappaB signalling, and an uncharacterized gene, C11orf95. In each case, C11orf95-RELA fusions resulted from chromothripsis involving chromosome 11q13.1. C11orf95-RELA fusion proteins translocated spontaneously to the nucleus to activate NF-kappaB target genes, and rapidly transformed neural stem cells--the cell of origin of ependymoma--to form these tumours in mice. Our data identify a highly recurrent genetic alteration of RELA in human cancer, and the C11orf95-RELA fusion protein as a potential therapeutic target in supratentorial ependymoma.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4050669/" 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/PMC4050669/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parker, Matthew -- Mohankumar, Kumarasamypet M -- Punchihewa, Chandanamali -- Weinlich, Ricardo -- Dalton, James D -- Li, Yongjin -- Lee, Ryan -- Tatevossian, Ruth G -- Phoenix, Timothy N -- Thiruvenkatam, Radhika -- White, Elsie -- Tang, Bo -- Orisme, Wilda -- Gupta, Kirti -- Rusch, Michael -- Chen, Xiang -- Li, Yuxin -- Nagahawhatte, Panduka -- Hedlund, Erin -- Finkelstein, David -- Wu, Gang -- Shurtleff, Sheila -- Easton, John -- Boggs, Kristy -- Yergeau, Donald -- Vadodaria, Bhavin -- Mulder, Heather L -- Becksfort, Jared -- Gupta, Pankaj -- Huether, Robert -- Ma, Jing -- Song, Guangchun -- Gajjar, Amar -- Merchant, Thomas -- Boop, Frederick -- Smith, Amy A -- Ding, Li -- Lu, Charles -- Ochoa, Kerri -- Zhao, David -- Fulton, Robert S -- Fulton, Lucinda L -- Mardis, Elaine R -- Wilson, Richard K -- Downing, James R -- Green, Douglas R -- Zhang, Jinghui -- Ellison, David W -- Gilbertson, Richard J -- P01 CA096832/CA/NCI NIH HHS/ -- P01CA96832/CA/NCI NIH HHS/ -- P30 CA021765/CA/NCI NIH HHS/ -- P30CA021765/CA/NCI NIH HHS/ -- R01 CA129541/CA/NCI NIH HHS/ -- R01CA129541/CA/NCI NIH HHS/ -- England -- Nature. 2014 Feb 27;506(7489):451-5. doi: 10.1038/nature13109. Epub 2014 Feb 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] Department of Computational Biology and Bioinformatics, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA [3]. ; 1] Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA [2]. ; 1] Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA [2]. ; 1] Department of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA [2]. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] Department of Computational Biology and Bioinformatics, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; Department of Computational Biology and Bioinformatics, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; 1] Department of Computational Biology and Bioinformatics, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA [2] Structural Biology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA. ; Structural Biology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; Department of Radiological Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; Department of Surgery, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; MD Anderson Cancer Center Orlando, Pediatric Hematology/Oncology, 92 West Miller MP 318, Orlando, Florida 32806, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] The Genome Institute, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA [3] Department of Genetics, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] The Genome Institute, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] The Genome Institute, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA [3] Department of Genetics, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA [4] Siteman Cancer Center, Washington University School of Medicine in St Louis, St Louis, Missouri 63108, USA. ; Department of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA. ; 1] St. Jude Children's Research Hospital - Washington University Pediatric Cancer Genome Project, Memphis, Tennessee 38105, USA [2] Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24553141" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adaptor Proteins, Signal Transducing/genetics/metabolism ; Animals ; Base Sequence ; Brain Neoplasms/genetics/metabolism/pathology ; Cell Line ; Cell Nucleus/metabolism ; *Cell Transformation, Neoplastic/genetics ; Chromosomes, Human, Pair 11/genetics ; Ependymoma/*genetics/*metabolism/pathology ; Female ; Humans ; Mice ; Models, Genetic ; Molecular Sequence Data ; NF-kappa B/genetics/*metabolism ; Neural Stem Cells/metabolism/pathology ; Oncogene Proteins, Fusion/genetics/metabolism ; Phosphoproteins/genetics/metabolism ; Proteins/genetics/*metabolism ; *Signal Transduction ; Transcription Factor RelA/genetics/*metabolism ; Translocation, Genetic/genetics
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Publikationsdatum: 2005-11-08
    Beschreibung: Local catabolism of the amino acid tryptophan (Trp) by indoleamine 2,3-dioxygenase (IDO) is considered an important mechanism of regulating T cell immunity. We show that IDO transcription was increased when myelin-specific T cells were stimulated with tolerogenic altered self-peptides. Catabolites of Trp suppressed proliferation of myelin-specific T cells and inhibited production of proinflammatory T helper-1 (T(H)1) cytokines. N-(3,4,-Dimethoxycinnamoyl) anthranilic acid (3,4-DAA), an orally active synthetic derivative of the Trp metabolite anthranilic acid, reversed paralysis in mice with experimental autoimmune encephalomyelitis, a model of multiple sclerosis (MS). Trp catabolites and their derivatives offer a new strategy for treating T(H)1-mediated autoimmune diseases such as MS.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Platten, Michael -- Ho, Peggy P -- Youssef, Sawsan -- Fontoura, Paulo -- Garren, Hideki -- Hur, Eun Mi -- Gupta, Rohit -- Lee, Lowen Y -- Kidd, Brian A -- Robinson, William H -- Sobel, Raymond A -- Selley, Michael L -- Steinman, Lawrence -- New York, N.Y. -- Science. 2005 Nov 4;310(5749):850-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology and Neurological Sciences, Beckman Center for Molecular Medicine, Stanford University, Stanford, CA 94305, USA. michael.platten@uni-tuebingen.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16272121" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adoptive Transfer ; Animals ; Anti-Inflammatory Agents, Non-Steroidal/administration & ; dosage/pharmacology/*therapeutic use ; Antigen-Presenting Cells/drug effects/immunology ; Brain/pathology ; Cell Line ; Cytokines/biosynthesis ; Disease Models, Animal ; Encephalomyelitis, Autoimmune, Experimental/*drug therapy/immunology ; Female ; Histocompatibility Antigens Class II/immunology/metabolism ; Immune Tolerance ; Immunosuppressive Agents/pharmacology/therapeutic use ; Indoleamine-Pyrrole 2,3,-Dioxygenase/genetics/metabolism ; Interferon-gamma/immunology ; Lymphocyte Activation ; Mice ; Mice, Transgenic ; Microglia/drug effects/immunology ; Multiple Sclerosis/drug therapy/immunology/pathology ; Myelin Proteins/immunology ; Signal Transduction ; Spinal Cord/pathology ; T-Lymphocytes/immunology ; Th1 Cells/immunology ; Th2 Cells/immunology ; Tryptophan/*metabolism ; ortho-Aminobenzoates/administration & dosage/pharmacology/*therapeutic use
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Publikationsdatum: 2005-09-24
    Beschreibung: Aneuploidies are common chromosomal defects that result in growth and developmental deficits and high levels of lethality in humans. To gain insight into the biology of aneuploidies, we manipulated mouse embryonic stem cells and generated a trans-species aneuploid mouse line that stably transmits a freely segregating, almost complete human chromosome 21 (Hsa21). This "transchromosomic" mouse line, Tc1, is a model of trisomy 21, which manifests as Down syndrome (DS) in humans, and has phenotypic alterations in behavior, synaptic plasticity, cerebellar neuronal number, heart development, and mandible size that relate to human DS. Transchromosomic mouse lines such as Tc1 may represent useful genetic tools for dissecting other human aneuploidies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1378183/" 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/PMC1378183/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Doherty, Aideen -- Ruf, Sandra -- Mulligan, Claire -- Hildreth, Victoria -- Errington, Mick L -- Cooke, Sam -- Sesay, Abdul -- Modino, Sonie -- Vanes, Lesley -- Hernandez, Diana -- Linehan, Jacqueline M -- Sharpe, Paul T -- Brandner, Sebastian -- Bliss, Timothy V P -- Henderson, Deborah J -- Nizetic, Dean -- Tybulewicz, Victor L J -- Fisher, Elizabeth M C -- 076700/Wellcome Trust/United Kingdom -- MC_U117512674/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2005 Sep 23;309(5743):2033-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurodegenerative Disease, Institute of Neurology, Queen Square, London WC1N 3BG, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16179473" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): *Aneuploidy ; Animals ; Behavior, Animal ; Brain/pathology ; Cell Count ; Cell Line ; Chimera ; *Chromosomes, Human, Pair 21 ; *Disease Models, Animal ; *Down Syndrome/genetics/physiopathology ; Embryo, Mammalian/cytology ; Facial Bones/pathology ; Female ; Gene Expression ; *Genetic Engineering ; Genetic Markers ; Heart Defects, Congenital/embryology ; Hippocampus/physiopathology ; Humans ; Long-Term Potentiation ; Lymphocyte Activation ; Male ; Maze Learning ; Memory ; Mice ; Mice, Inbred Strains ; *Mice, Transgenic ; Neurons/cytology ; Oligonucleotide Array Sequence Analysis ; Phenotype ; Skull/pathology ; Stem Cells ; Synaptic Transmission ; T-Lymphocytes/immunology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Publikationsdatum: 2019-08-17
    Beschreibung: As part of our work [1] to develop techniques and procedures to create regional and eventually global THEMIS mosaics of Mars, we are developing algorithms and software to photogrammetrically control THEMIS IR line scanner camera images. We have found from comparison of a limited number of images to MOLA digital image models (DIMs) [2] that the a priori geometry information (i.e. SPICE [3]) for THEMIS images generally allows their relative positions to be specified at the several pixel level (e.g. approx.5 to 13 pixels). However a need for controlled solutions to improve this geometry to the sub-pixel level still exists. Only with such solutions can seamless mosaics be obtained and likely distortion from spacecraft motion during image collection removed at such levels. Past experience has shown clearly that such mosaics are in heavy demand by users for operational and scientific use, and that they are needed over large areas or globally (as opposed to being available only on a limited basis via labor intensive custom mapping projects). Uses include spacecraft navigation, landing site planning and mapping, registration of multiple data types and image sets, registration of multispectral images, registration of images with topographic information, recovery of thermal properties, change detection searches, etc.
    Schlagwort(e): Lunar and Planetary Science and Exploration
    Materialart: Lunar and Planetary Science XXXVI, Part 1; LPI-Contrib-1234-Pt-1
    Format: text
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  • 6
    Publikationsdatum: 2019-07-11
    Beschreibung: Lunar meteorite MET 01210 (hereafter referred to as MET) is a 22.8 g breccia collected during the 2001 field season in the Meteorite Hills, Antarctica. Although initially classified as an anorthositic breccia, MET is a regolith breccia composed predominantly of very-low-Ti (VLT) basaltic material. Four other brecciated lunar meteorites (NWA 773, QUE 94281, EET 87/96, Yamato 79/98) with a significant VLT basaltic component have been identified. We present here the petrography and bulk major element composition of MET and compare it to previously studied basaltic lunar meteorite breccias.
    Schlagwort(e): Lunar and Planetary Science and Exploration
    Materialart: Lunar and Planetary Science XXXVI, Part 22; LPI-Contrib-1234-Pt-22
    Format: application/pdf
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  • 7
    Publikationsdatum: 2019-07-13
    Beschreibung: We present new observations of pyroclastic deposits on the surface of Mercury from data acquired during the orbital phase of the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) mission. The global analysis of pyroclastic deposits brings the total number of such identified features from 40 to 51. Some 90% of pyroclastic deposits are found within impact craters. The locations of most pyroclastic deposits appear to be unrelated to regional smooth plains deposits, except some deposits cluster around the margins of smooth plains, similar to the relation between many lunar pyroclastic deposits and lunar maria. A survey of the degradation state of the impact craters that host pyroclastic deposits suggests that pyroclastic activity occurred on Mercury over a prolonged interval. Measurements of surface reflectance by MESSENGER indicate that the pyroclastic deposits are spectrally distinct from their surrounding terrain, with higher reflectance values, redder (i.e., steeper) spectral slopes, and a downturn at wavelengths shorter than approximately 400nm (i.e., in the near-ultraviolet region of the spectrum). Three possible causes for these distinctive characteristics include differences in transition metal content, physical properties (e.g., grain size), or degree of space weathering from average surface material on Mercury. The strength of the near-ultraviolet downturn varies among spectra of pyroclastic deposits and is correlated with reflectance at visible wavelengths. We suggest that this interdeposit variability in reflectance spectra is the result of either variable amounts of mixing of the pyroclastic deposits with underlying material or inherent differences in chemical and physical properties among pyroclastic deposits.
    Schlagwort(e): Lunar and Planetary Science and Exploration
    Materialart: GSFC-E-DAA-TN21209 , Geophysical Research Letters (ISSN 0094-8276); 119; 3; 635–658
    Format: text
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  • 8
    Publikationsdatum: 2019-07-13
    Beschreibung: Mercury's regolith, derived from the crustal bedrock, has been altered by a set of space weathering processes. Before we can interpret crustal composition, it is necessary to understand the nature of these surface alterations. The processes that space weather the surface are the same as those that form Mercury's exosphere (micrometeoroid flux and solar wind interactions) and are moderated by the local space environment and the presence of a global magnetic field. To comprehend how space weathering acts on Mercury's regolith, an understanding is needed of how contributing processes act as an interactive system. As no direct information (e.g., from returned samples) is available about how the system of space weathering affects Mercury's regolith, we use as a basis for comparison the current understanding of these same processes on lunar and asteroidal regoliths as well as laboratory simulations. These comparisons suggest that Mercury's regolith is overturned more frequently (though the characteristic surface time for a grain is unknown even relative to the lunar case), more than an order of magnitude more melt and vapor per unit time and unit area is produced by impact processes than on the Moon (creating a higher glass content via grain coatings and agglutinates), the degree of surface irradiation is comparable to or greater than that on the Moon, and photon irradiation is up to an order of magnitude greater (creating amorphous grain rims, chemically reducing the upper layers of grains to produce nanometer scale particles of metallic iron, and depleting surface grains in volatile elements and alkali metals). The processes that chemically reduce the surface and produce nanometer-scale particles on Mercury are suggested to be more effective than similar processes on the Moon. Estimated abundances of nanometer-scale particles can account for Mercury's dark surface relative to that of the Moon without requiring macroscopic grains of opaque minerals. The presence of nanometer-scale particles may also account for Mercury's relatively featureless visible-near-infrared reflectance spectra. Characteristics of material returned from asteroid 25143 Itokawa demonstrate that this nanometer-scale material need not be pure iron, raising the possibility that the nanometer-scale material on Mercury may have a composition different from iron metal [such as (Fe,Mg)S]. The expected depletion of volatiles and particularly alkali metals from solar-wind interaction processes are inconsistent with the detection of sodium, potassium, and sulfur within the regolith. One plausible explanation invokes a larger fine fraction (grain size less than 45 micron) and more radiation-damaged grains than in the lunar surface material to create a regolith that is a more efficient reservoir for these volatiles. By this view the volatile elements detected are present not only within the grain structures, but also as adsorbates within the regolith and deposits on the surfaces of the regolith grains. The comparisons with findings from the Moon and asteroids provide a basis for predicting how compositional modifications induced by space weathering have affected Mercury's surface composition.
    Schlagwort(e): Lunar and Planetary Science and Exploration
    Materialart: GSFC-E-DAA-TN16346 , Space Science Reviews; 181; 4-Jan; 121-214
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Publikationsdatum: 2019-07-13
    Beschreibung: No present or approved spacecraft mission has the capability to provide high angular resolution imaging of solar or magnetospheric radio bursts or of the celestial sphere at frequencies below the ionospheric cutoff. Here, we describe a MIDEX-class mission to perform such imaging in the frequency range approx. 30 kHz to 15 MHz. This mission, the Solar Imaging Radio Array (SIRA), is solar and exploration-oriented, with emphasis on improved understanding and application of radio bursts associated with solar energetic particle (SEP) events and on tracking shocks and other components of coronal mass ejections (CMEs). SIRA will require 12 to 16 micro-satellites to establish a sufficient number of baselines with separations on the order of kilometers. The constellation consists of microsats located quasi-randomly on a spherical shell, initially of approx. 10 km diameter. The baseline microsat is 3-axis stabilized with body-mounted solar arrays and an articulated, earth pointing high gain antenna. The constellation will likely be placed at L1, which is the preferred location for full-time solar observations. We also discuss briefly follow-on missions that would be lunar-based with of order 10,000 dipole antennas.
    Schlagwort(e): Lunar and Planetary Science and Exploration
    Materialart: Planetary Radion Emissions 6th; Apr 20, 2005 - Apr 22, 2005; Graz; Austria
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Publikationsdatum: 2014-12-18
    Beschreibung: Endocytosis is required for internalization of micronutrients and turnover of membrane components. Endophilin has been assigned as a component of clathrin-mediated endocytosis. Here we show in mammalian cells that endophilin marks and controls a fast-acting tubulovesicular endocytic pathway that is independent of AP2 and clathrin, activated upon ligand binding to cargo receptors, inhibited by inhibitors of dynamin, Rac, phosphatidylinositol-3-OH kinase, PAK1 and actin polymerization, and activated upon Cdc42 inhibition. This pathway is prominent at the leading edges of cells where phosphatidylinositol-3,4-bisphosphate-produced by the dephosphorylation of phosphatidylinositol-3,4,5-triphosphate by SHIP1 and SHIP2-recruits lamellipodin, which in turn engages endophilin. This pathway mediates the ligand-triggered uptake of several G-protein-coupled receptors such as alpha2a- and beta1-adrenergic, dopaminergic D3 and D4 receptors and muscarinic acetylcholine receptor 4, the receptor tyrosine kinases EGFR, HGFR, VEGFR, PDGFR, NGFR and IGF1R, as well as interleukin-2 receptor. We call this new endocytic route fast endophilin-mediated endocytosis (FEME).〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boucrot, Emmanuel -- Ferreira, Antonio P A -- Almeida-Souza, Leonardo -- Debard, Sylvain -- Vallis, Yvonne -- Howard, Gillian -- Bertot, Laetitia -- Sauvonnet, Nathalie -- McMahon, Harvey T -- U105178805/Medical Research Council/United Kingdom -- Biotechnology and Biological Sciences Research Council/United Kingdom -- England -- Nature. 2015 Jan 22;517(7535):460-5. doi: 10.1038/nature14067. Epub 2014 Dec 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK [2] Institute of Structural and Molecular Biology, University College London &Birkbeck College, London WC1E 6BT, UK. ; Institute of Structural and Molecular Biology, University College London &Birkbeck College, London WC1E 6BT, UK. ; MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK. ; 1] Institute of Structural and Molecular Biology, University College London &Birkbeck College, London WC1E 6BT, UK [2] Department of Biology, Ecole Normale Superieure de Cachan, 94235 Cachan, France. ; Institut Pasteur, Unite de Pathogenie Moleculaire Microbienne, 28 rue du Docteur Roux, 75724 Paris Cedex 15, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25517094" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Actins/metabolism ; Acyltransferases/*metabolism ; Cell Line ; Clathrin ; Dynamins/metabolism ; *Endocytosis ; Humans ; Ligands ; Phosphatidylinositol Phosphates/metabolism ; Pseudopodia/metabolism ; Receptor Protein-Tyrosine Kinases/metabolism ; Receptors, G-Protein-Coupled/metabolism ; Receptors, Interleukin-2/metabolism ; Signal Transduction ; Time Factors
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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