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  • Articles  (11)
  • Female  (5)
  • Protein Structure, Tertiary  (3)
  • Water  (3)
  • 2000-2004  (11)
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  • Articles  (11)
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  • 1
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    Positioning of longitudinal nerves in C. elegans by nidogen (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-07
    Description: Basement membranes can help determine pathways of migrating axons. Although members of the nidogen (entactin) protein family are structural components of basement membranes, we find that nidogen is not required for basement membrane assembly in the nematode Caenorhabditis elegans. Nidogen is localized to body wall basement membranes and is required to direct longitudinal nerves dorsoventrally and to direct axons at the midlines. By examining migration of a single axon in vivo, we show that nidogen is required for the axon to switch from circumferential to longitudinal migration. Specialized basement membranes may thus regulate nerve position.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, S -- Wadsworth, W G -- New York, N.Y. -- Science. 2000 Apr 7;288(5463):150-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Robert Wood Johnson Medical School, Piscataway, NJ 08854-5635, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10753123" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Animals ; Animals, Genetically Modified ; Axons/*physiology ; Basement Membrane/*physiology ; Body Patterning ; Caenorhabditis elegans/anatomy & histology/embryology/genetics/*growth & ; development ; *Caenorhabditis elegans Proteins ; Cell Adhesion Molecules/genetics/physiology ; Cell Movement ; Cloning, Molecular ; Gene Expression ; Genes, Helminth ; In Situ Hybridization ; Intestines/cytology/metabolism ; Membrane Glycoproteins/analysis/chemistry/genetics/*physiology ; Motor Neurons/physiology/ultrastructure ; Muscles/metabolism ; Nervous System/anatomy & histology/embryology/growth & development/ultrastructure ; Neurons/metabolism ; Phenotype ; Protein Structure, Tertiary ; Receptors, Cell Surface/genetics/physiology ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    HIFalpha targeted for VHL-mediated destruction by proline hydroxylation: implications for O2 sensing (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-04-09
    Description: HIF (hypoxia-inducible factor) is a transcription factor that plays a pivotal role in cellular adaptation to changes in oxygen availability. In the presence of oxygen, HIF is targeted for destruction by an E3 ubiquitin ligase containing the von Hippel-Lindau tumor suppressor protein (pVHL). We found that human pVHL binds to a short HIF-derived peptide when a conserved proline residue at the core of this peptide is hydroxylated. Because proline hydroxylation requires molecular oxygen and Fe(2+), this protein modification may play a key role in mammalian oxygen sensing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ivan, M -- Kondo, K -- Yang, H -- Kim, W -- Valiando, J -- Ohh, M -- Salic, A -- Asara, J M -- Lane, W S -- Kaelin , W G Jr -- New York, N.Y. -- Science. 2001 Apr 20;292(5516):464-8. Epub 2001 Apr 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dana-Farber Cancer Institute and Brigham and Women's Hospital, Howard Hughes Medical Institute, Harvard Medical School, 44 Binney Street, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11292862" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Basic Helix-Loop-Helix Transcription Factors ; Cell Hypoxia ; Cell Line ; Cobalt/pharmacology ; Deferoxamine/pharmacology ; Humans ; Hydroxylation ; Hydroxyproline/*metabolism ; *Ligases ; Mass Spectrometry ; Mice ; Molecular Sequence Data ; Oxygen/*physiology ; Protein Structure, Tertiary ; Proteins/*metabolism ; Recombinant Fusion Proteins/metabolism ; Trans-Activators/chemistry/genetics/*metabolism ; Transcription Factors/*metabolism ; Tumor Cells, Cultured ; *Tumor Suppressor Proteins ; *Ubiquitin-Protein Ligases ; Ubiquitins/metabolism ; Von Hippel-Lindau Tumor Suppressor Protein
    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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    Location of a major susceptibility locus for familial schizophrenia on chromosome 1q21-q22 (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-04-28
    Description: Schizophrenia is a complex disorder, and there is substantial evidence supporting a genetic etiology. Despite this, prior attempts to localize susceptibility loci have produced predominantly suggestive findings. A genome-wide scan for schizophrenia susceptibility loci in 22 extended families with high rates of schizophrenia provided highly significant evidence of linkage to chromosome 1 (1q21-q22), with a maximum heterogeneity logarithm of the likelihood of linkage (lod) score of 6.50. This linkage result should provide sufficient power to allow the positional cloning of the underlying susceptibility gene.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3787922/" 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/PMC3787922/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brzustowicz, L M -- Hodgkinson, K A -- Chow, E W -- Honer, W G -- Bassett, A S -- 53216/Canadian Institutes of Health Research/Canada -- K08 MH01392/MH/NIMH NIH HHS/ -- N01-HG-65403/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2000 Apr 28;288(5466):678-82.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Molecular and Behavioral Neuroscience, Rutgers University, Newark, NJ 07102, USA. brzustowicz@axon.rutgers.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10784452" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Mapping ; Chromosomes, Human, Pair 1/*genetics ; Computer Simulation ; Female ; Genes, Dominant ; Genes, Recessive ; Genetic Heterogeneity ; Genetic Linkage ; Genetic Markers ; *Genetic Predisposition to Disease ; Humans ; Likelihood Functions ; Lod Score ; Male ; Models, Genetic ; Pedigree ; Schizophrenia/*genetics
    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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    Structure of an HIF-1alpha -pVHL complex: hydroxyproline recognition in signaling (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-11
    Description: The ubiquitination of the hypoxia-inducible factor (HIF) by the von Hippel-Lindau tumor suppressor (pVHL) plays a central role in the cellular response to changes in oxygen availability. pVHL binds to HIF only when a conserved proline in HIF is hydroxylated, a modification that is oxygen-dependent. The 1.85 angstrom structure of a 20-residue HIF-1alpha peptide-pVHL-ElonginB-ElonginC complex shows that HIF-1alpha binds to pVHL in an extended beta strand-like conformation. The hydroxyproline inserts into a gap in the pVHL hydrophobic core, at a site that is a hotspot for tumorigenic mutations, with its 4-hydroxyl group recognized by buried serine and histidine residues. Although the beta sheet-like interactions contribute to the stability of the complex, the hydroxyproline contacts are central to the strict specificity characteristic of signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Min, Jung-Hyun -- Yang, Haifeng -- Ivan, Mircea -- Gertler, Frank -- Kaelin, William G Jr -- Pavletich, Nikola P -- New York, N.Y. -- Science. 2002 Jun 7;296(5574):1886-9. Epub 2002 May 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cellular Biochemistry and Biophysics Program and Howard Hughes Medical Institute, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12004076" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; Crystallography, X-Ray ; Humans ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Hydroxylation ; Hydroxyproline/*metabolism ; Hypoxia-Inducible Factor 1, alpha Subunit ; Ligases/*chemistry/genetics/metabolism ; Macromolecular Substances ; Mice ; Models, Molecular ; Molecular Sequence Data ; Mutation ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Signal Transduction ; Transcription Factors/*chemistry/metabolism ; *Tumor Suppressor Proteins ; *Ubiquitin-Protein Ligases ; Von Hippel-Lindau Tumor Suppressor Protein
    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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    Human hypertension caused by mutations in WNK kinases (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-08-11
    Description: Hypertension is a major public health problem of largely unknown cause. Here, we identify two genes causing pseudohypoaldosteronism type II, a Mendelian trait featuring hypertension, increased renal salt reabsorption, and impaired K+ and H+ excretion. Both genes encode members of the WNK family of serine-threonine kinases. Disease-causing mutations in WNK1 are large intronic deletions that increase WNK1 expression. The mutations in WNK4 are missense, which cluster in a short, highly conserved segment of the encoded protein. Both proteins localize to the distal nephron, a kidney segment involved in salt, K+, and pH homeostasis. WNK1 is cytoplasmic, whereas WNK4 localizes to tight junctions. The WNK kinases and their associated signaling pathway(s) may offer new targets for the development of antihypertensive drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, F H -- Disse-Nicodeme, S -- Choate, K A -- Ishikawa, K -- Nelson-Williams, C -- Desitter, I -- Gunel, M -- Milford, D V -- Lipkin, G W -- Achard, J M -- Feely, M P -- Dussol, B -- Berland, Y -- Unwin, R J -- Mayan, H -- Simon, D B -- Farfel, Z -- Jeunemaitre, X -- Lifton, R P -- New York, N.Y. -- Science. 2001 Aug 10;293(5532):1107-12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute; Yale University School of Medicine, Boyer Center for Molecular Medicine, 295 Congress Avenue, New Haven, CT 06510 USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11498583" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Chromosome Mapping ; Chromosomes, Human, Pair 12/genetics ; Chromosomes, Human, Pair 17/genetics ; Cytoplasm/enzymology ; Female ; Gene Expression Regulation, Enzymologic ; Genetic Linkage ; Humans ; Hypertension/enzymology/*genetics/physiopathology ; Intercellular Junctions/enzymology ; Intracellular Signaling Peptides and Proteins ; Introns ; Kidney Tubules, Collecting/enzymology/ultrastructure ; Kidney Tubules, Distal/enzymology/ultrastructure ; Male ; Membrane Proteins/metabolism ; Microscopy, Fluorescence ; Molecular Sequence Data ; *Mutation ; Mutation, Missense ; Pedigree ; Phosphoproteins/metabolism ; Protein-Serine-Threonine Kinases/chemistry/*genetics/metabolism ; Pseudohypoaldosteronism/enzymology/*genetics/physiopathology ; Sequence Deletion ; Signal Transduction ; Zonula Occludens-1 Protein
    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
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    Rapid evolution of a geographic cline in size in an introduced fly (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-01-15
    Description: The introduction and rapid spread of Drosophila subobscura in the New World two decades ago provide an opportunity to determine the predictability and rate of evolution of a geographic cline. In ancestral Old World populations, wing length increases clinally with latitude. In North American populations, no wing length cline was detected one decade after the introduction. After two decades, however, a cline has evolved and largely converged on the ancestral cline. The rate of morphological evolution on a continental scale is very fast, relative even to rates measured within local populations. Nevertheless, different wing sections dominate the New versus Old World clines. Thus, the evolution of geographic variation in wing length has been predictable, but the means by which the cline is achieved is contingent.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huey, R B -- Gilchrist, G W -- Carlson, M L -- Berrigan, D -- Serra, L -- New York, N.Y. -- Science. 2000 Jan 14;287(5451):308-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Washington, Box 351800, Seattle, WA 98195-1800, USA. hueyrb@u.washington.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10634786" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Drosophila/*anatomy & histology/*genetics ; Europe ; Female ; Geography ; Male ; North America ; Sex Characteristics ; Time Factors ; Wings, Animal/*anatomy & histology
    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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  • 7
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    Chemistry of rocks and soils at Meridiani Planum from the Alpha Particle X-ray Spectrometer (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-12-04
    Description: The Alpha Particle X-ray Spectrometer on the Opportunity rover determined major and minor elements of soils and rocks in Meridiani Planum. Chemical compositions differentiate between basaltic rocks, evaporite-rich rocks, basaltic soils, and hematite-rich soils. Although soils are compositionally similar to those at previous landing sites, differences in iron and some minor element concentrations signify the addition of local components. Rocky outcrops are rich in sulfur and variably enriched in bromine relative to chlorine. The interaction with water in the past is indicated by the chemical features in rocks and soils at this site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rieder, R -- Gellert, R -- Anderson, R C -- Bruckner, J -- Clark, B C -- Dreibus, G -- Economou, T -- Klingelhofer, G -- Lugmair, G W -- Ming, D W -- Squyres, S W -- d'Uston, C -- Wanke, H -- Yen, A -- Zipfel, J -- New York, N.Y. -- Science. 2004 Dec 3;306(5702):1746-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur Chemie, J. J. Becher-Weg 27, D-55128 Mainz, Germany. rieder@mpch-mainz.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15576611" target="_blank"〉PubMed〈/a〉
    Keywords: Alpha Particles ; Bromine ; Chlorine ; Elements ; Extraterrestrial Environment ; Ferric Compounds ; Geologic Sediments ; Iron ; Magnesium ; *Mars ; Minerals ; Silicates ; Spacecraft ; Spectrometry, X-Ray Emission ; Sulfates ; Sulfur ; Water
    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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  • 8
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    Osedax: bone-eating marine worms with dwarf males (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-08-03
    Description: We describe a new genus, Osedax, and two new species of annelids with females that consume the bones of dead whales via ramifying roots. Molecular and morphological evidence revealed that Osedax belongs to the Siboglinidae, which includes pogonophoran and vestimentiferan worms from deep-sea vents, seeps, and anoxic basins. Osedax has skewed sex ratios with numerous dwarf (paedomorphic) males that live in the tubes of females. DNA sequences reveal that the two Osedax species diverged about 42 million years ago and currently maintain large populations ranging from 10(5) to 10(6) adult females.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rouse, G W -- Goffredi, S K -- Vrijenhoek, R C -- New York, N.Y. -- Science. 2004 Jul 30;305(5684):668-71.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉South Australian Museum, North Terrace, Adelaide SA 5000, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15286372" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bacterial Physiological Phenomena ; Bone Marrow/metabolism ; Bone and Bones/*metabolism ; Female ; Male ; Phylogeny ; Polychaeta/anatomy & histology/*classification/microbiology/*physiology ; Population Density ; Seawater ; Sex Characteristics ; Sex Ratio ; Symbiosis ; Terminology as Topic ; Whales
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Mitochondrial dysfunction in the elderly: possible role in insulin resistance (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-05-17
    Description: Insulin resistance is a major factor in the pathogenesis of type 2 diabetes in the elderly. To investigate how insulin resistance arises, we studied healthy, lean, elderly and young participants matched for lean body mass and fat mass. Elderly study participants were markedly insulin-resistant as compared with young controls, and this resistance was attributable to reduced insulin-stimulated muscle glucose metabolism. These changes were associated with increased fat accumulation in muscle and liver tissue assessed by 1H nuclear magnetic resonance (NMR) spectroscopy, and with a approximately 40% reduction in mitochondrial oxidative and phosphorylation activity, as assessed by in vivo 13C/31P NMR spectroscopy. These data support the hypothesis that an age-associated decline in mitochondrial function contributes to insulin resistance in the elderly.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3004429/" 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/PMC3004429/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Petersen, Kitt Falk -- Befroy, Douglas -- Dufour, Sylvie -- Dziura, James -- Ariyan, Charlotte -- Rothman, Douglas L -- DiPietro, Loretta -- Cline, Gary W -- Shulman, Gerald I -- K-23 DK-02347/DK/NIDDK NIH HHS/ -- K23 DK002734/DK/NIDDK NIH HHS/ -- K23 DK002734-04/DK/NIDDK NIH HHS/ -- M01 RR-00125/RR/NCRR NIH HHS/ -- P30 DK-45735/DK/NIDDK NIH HHS/ -- P60 AG-10469/AG/NIA NIH HHS/ -- R01 AG-09872/AG/NIA NIH HHS/ -- R01 AG023686/AG/NIA NIH HHS/ -- R01 AG023686-01A1/AG/NIA NIH HHS/ -- R01 DK-49230/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2003 May 16;300(5622):1140-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12750520" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Aging/metabolism ; Blood Glucose/metabolism ; Body Mass Index ; Female ; Humans ; Insulin/metabolism ; *Insulin Resistance ; Liver/metabolism ; Male ; Middle Aged ; Mitochondria/*metabolism ; Mitochondrial Diseases/blood/*complications/metabolism ; Muscle, Skeletal/metabolism ; Nuclear Magnetic Resonance, Biomolecular ; Oxidation-Reduction ; Oxygen Consumption ; Phosphorylation ; Triglycerides/*metabolism
    Print ISSN: 0036-8075
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  • 10
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    Chemistry of rocks and soils in Gusev Crater from the alpha particle x-ray spectrometer (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-08-07
    Description: The alpha particle x-ray spectrometer on the Spirit rover determined major and minor elements of soils and rocks in Gusev crater in order to unravel the crustal evolution of planet Mars. The composition of soils is similar to those at previous landing sites, as a result of global mixing and distribution by dust storms. Rocks (fresh surfaces exposed by the rock abrasion tool) resemble volcanic rocks of primitive basaltic composition with low intrinsic potassium contents. High abundance of bromine (up to 170 parts per million) in rocks may indicate the alteration of surfaces formed during a past period of aqueous activity in Gusev crater.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gellert, R -- Rieder, R -- Anderson, R C -- Bruckner, J -- Clark, B C -- Dreibus, G -- Economou, T -- Klingelhofer, G -- Lugmair, G W -- Ming, D W -- Squyres, S W -- D'Uston, C -- Wanke, H -- Yen, A -- Zipfel, J -- New York, N.Y. -- Science. 2004 Aug 6;305(5685):829-32.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max-Planck-Institut fur Chemie, J. J. Becher-Weg 27, D-55128 Mainz, Germany. gellert@mpch-mainz.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15297665" target="_blank"〉PubMed〈/a〉
    Keywords: Alpha Particles ; Bromine ; *Elements ; Evolution, Planetary ; Extraterrestrial Environment ; Geologic Sediments ; *Mars ; Potassium ; Spectrum Analysis ; Water
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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