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  • Lunar and Planetary Science and Exploration  (398)
  • Models, Molecular  (175)
  • Signal Transduction  (142)
  • 2005-2009  (713)
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  • 1
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    The genome of the sea urchin Strongylocentrotus purpuratus (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-11-11
    Description: We report the sequence and analysis of the 814-megabase genome of the sea urchin Strongylocentrotus purpuratus, a model for developmental and systems biology. The sequencing strategy combined whole-genome shotgun and bacterial artificial chromosome (BAC) sequences. This use of BAC clones, aided by a pooling strategy, overcame difficulties associated with high heterozygosity of the genome. The genome encodes about 23,300 genes, including many previously thought to be vertebrate innovations or known only outside the deuterostomes. This echinoderm genome provides an evolutionary outgroup for the chordates and yields insights into the evolution of deuterostomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3159423/" 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/PMC3159423/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sea Urchin Genome Sequencing Consortium -- Sodergren, Erica -- Weinstock, George M -- Davidson, Eric H -- Cameron, R Andrew -- Gibbs, Richard A -- Angerer, Robert C -- Angerer, Lynne M -- Arnone, Maria Ina -- Burgess, David R -- Burke, Robert D -- Coffman, James A -- Dean, Michael -- Elphick, Maurice R -- Ettensohn, Charles A -- Foltz, Kathy R -- Hamdoun, Amro -- Hynes, Richard O -- Klein, William H -- Marzluff, William -- McClay, David R -- Morris, Robert L -- Mushegian, Arcady -- Rast, Jonathan P -- Smith, L Courtney -- Thorndyke, Michael C -- Vacquier, Victor D -- Wessel, Gary M -- Wray, Greg -- Zhang, Lan -- Elsik, Christine G -- Ermolaeva, Olga -- Hlavina, Wratko -- Hofmann, Gretchen -- Kitts, Paul -- Landrum, Melissa J -- Mackey, Aaron J -- Maglott, Donna -- Panopoulou, Georgia -- Poustka, Albert J -- Pruitt, Kim -- Sapojnikov, Victor -- Song, Xingzhi -- Souvorov, Alexandre -- Solovyev, Victor -- Wei, Zheng -- Whittaker, Charles A -- Worley, Kim -- Durbin, K James -- Shen, Yufeng -- Fedrigo, Olivier -- Garfield, David -- Haygood, Ralph -- Primus, Alexander -- Satija, Rahul -- Severson, Tonya -- Gonzalez-Garay, Manuel L -- Jackson, Andrew R -- Milosavljevic, Aleksandar -- Tong, Mark -- Killian, Christopher E -- Livingston, Brian T -- Wilt, Fred H -- Adams, Nikki -- Belle, Robert -- Carbonneau, Seth -- Cheung, Rocky -- Cormier, Patrick -- Cosson, Bertrand -- Croce, Jenifer -- Fernandez-Guerra, Antonio -- Geneviere, Anne-Marie -- Goel, Manisha -- Kelkar, Hemant -- Morales, Julia -- Mulner-Lorillon, Odile -- Robertson, Anthony J -- Goldstone, Jared V -- Cole, Bryan -- Epel, David -- Gold, Bert -- Hahn, Mark E -- Howard-Ashby, Meredith -- Scally, Mark -- Stegeman, John J -- Allgood, Erin L -- Cool, Jonah -- Judkins, Kyle M -- McCafferty, Shawn S -- Musante, Ashlan M -- Obar, Robert A -- Rawson, Amanda P -- Rossetti, Blair J -- Gibbons, Ian R -- Hoffman, Matthew P -- Leone, Andrew -- Istrail, Sorin -- Materna, Stefan C -- Samanta, Manoj P -- Stolc, Viktor -- Tongprasit, Waraporn -- Tu, Qiang -- Bergeron, Karl-Frederik -- Brandhorst, Bruce P -- Whittle, James -- Berney, Kevin -- Bottjer, David J -- Calestani, Cristina -- Peterson, Kevin -- Chow, Elly -- Yuan, Qiu Autumn -- Elhaik, Eran -- Graur, Dan -- Reese, Justin T -- Bosdet, Ian -- Heesun, Shin -- Marra, Marco A -- Schein, Jacqueline -- Anderson, Michele K -- Brockton, Virginia -- Buckley, Katherine M -- Cohen, Avis H -- Fugmann, Sebastian D -- Hibino, Taku -- Loza-Coll, Mariano -- Majeske, Audrey J -- Messier, Cynthia -- Nair, Sham V -- Pancer, Zeev -- Terwilliger, David P -- Agca, Cavit -- Arboleda, Enrique -- Chen, Nansheng -- Churcher, Allison M -- Hallbook, F -- Humphrey, Glen W -- Idris, Mohammed M -- Kiyama, Takae -- Liang, Shuguang -- Mellott, Dan -- Mu, Xiuqian -- Murray, Greg -- Olinski, Robert P -- Raible, Florian -- Rowe, Matthew -- Taylor, John S -- Tessmar-Raible, Kristin -- Wang, D -- Wilson, Karen H -- Yaguchi, Shunsuke -- Gaasterland, Terry -- Galindo, Blanca E -- Gunaratne, Herath J -- Juliano, Celina -- Kinukawa, Masashi -- Moy, Gary W -- Neill, Anna T -- Nomura, Mamoru -- Raisch, Michael -- Reade, Anna -- Roux, Michelle M -- Song, Jia L -- Su, Yi-Hsien -- Townley, Ian K -- Voronina, Ekaterina -- Wong, Julian L -- Amore, Gabriele -- Branno, Margherita -- Brown, Euan R -- Cavalieri, Vincenzo -- Duboc, Veronique -- Duloquin, Louise -- Flytzanis, Constantin -- Gache, Christian -- Lapraz, Francois -- Lepage, Thierry -- Locascio, Annamaria -- Martinez, Pedro -- Matassi, Giorgio -- Matranga, Valeria -- Range, Ryan -- Rizzo, Francesca -- Rottinger, Eric -- Beane, Wendy -- Bradham, Cynthia -- Byrum, Christine -- Glenn, Tom -- Hussain, Sofia -- Manning, Gerard -- Miranda, Esther -- Thomason, Rebecca -- Walton, Katherine -- Wikramanayke, Athula -- Wu, Shu-Yu -- Xu, Ronghui -- Brown, C Titus -- Chen, Lili -- Gray, Rachel F -- Lee, Pei Yun -- Nam, Jongmin -- Oliveri, Paola -- Smith, Joel -- Muzny, Donna -- Bell, Stephanie -- Chacko, Joseph -- Cree, Andrew -- Curry, Stacey -- Davis, Clay -- Dinh, Huyen -- Dugan-Rocha, Shannon -- Fowler, Jerry -- Gill, Rachel -- Hamilton, Cerrissa -- Hernandez, Judith -- Hines, Sandra -- Hume, Jennifer -- Jackson, Laronda -- Jolivet, Angela -- Kovar, Christie -- Lee, Sandra -- Lewis, Lora -- Miner, George -- Morgan, Margaret -- Nazareth, Lynne V -- Okwuonu, Geoffrey -- Parker, David -- Pu, Ling-Ling -- Thorn, Rachel -- Wright, Rita -- 2P42 ESO7381/PHS HHS/ -- 5 U54 HG003273/HG/NHGRI NIH HHS/ -- EY11930/EY/NEI NIH HHS/ -- F32 ESO12794/PHS HHS/ -- F32 HD047136/HD/NICHD NIH HHS/ -- F32 HD047136-02/HD/NICHD NIH HHS/ -- F32 HD047136-03/HD/NICHD NIH HHS/ -- F32-HD47136/HD/NICHD NIH HHS/ -- GM058231/GM/NIGMS NIH HHS/ -- GM070840/GM/NIGMS NIH HHS/ -- GM61005/GM/NIGMS NIH HHS/ -- GM61464/GM/NIGMS NIH HHS/ -- HD-37105/HD/NICHD NIH HHS/ -- HD039948/HD/NICHD NIH HHS/ -- HD14483/HD/NICHD NIH HHS/ -- HD66219/HD/NICHD NIH HHS/ -- P30-CA14051/CA/NCI NIH HHS/ -- R01 ES006272/ES/NIEHS NIH HHS/ -- R01 ES006272-13/ES/NIEHS NIH HHS/ -- R01 GM070840/GM/NIGMS NIH HHS/ -- R01 HD028152/HD/NICHD NIH HHS/ -- R01ES006272/ES/NIEHS NIH HHS/ -- R37-HD12896/HD/NICHD NIH HHS/ -- RR-15044/RR/NCRR NIH HHS/ -- S19916/Biotechnology and Biological Sciences Research Council/United Kingdom -- T32 GM007601/GM/NIGMS NIH HHS/ -- U54 HG003273/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2006 Nov 10;314(5801):941-52.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17095691" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcification, Physiologic ; Cell Adhesion Molecules/genetics/physiology ; Complement Activation/genetics ; Computational Biology ; Embryonic Development/genetics ; Evolution, Molecular ; Gene Expression Regulation, Developmental ; Genes ; *Genome ; Immunity, Innate/genetics ; Immunologic Factors/genetics/physiology ; Male ; Nervous System Physiological Phenomena ; Proteins/genetics/physiology ; *Sequence Analysis, DNA ; Signal Transduction ; Strongylocentrotus purpuratus/embryology/*genetics/immunology/physiology ; Transcription Factors/genetics
    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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    Characterization and Petrologic Interpretation of Olivine-Rich Basalts at Gusev Crater, Mars (2006)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: Rocks on the floor of Gusev crater are basalts of uniform composition and mineralogy. Olivine, the only mineral to have been identified or inferred from data by all instruments on the Spirit rover, is especially abundant in these rocks. These picritic basalts are similar in many respects to certain Martian meteorites (olivine-phyric shergottites). The olivine megacrysts in both have intermediate compositions, with modal abundances ranging up to 20-30%. Associated minerals in both include low-calcium and high-calcium pyroxenes, plagioclase of intermediate composition, iron-titanium-chromium oxides, and phosphate. These rocks also share minor element trends, reflected in their nickel-magnesium and chromium-magnesium ratios. Gusev basalts and shergottites appear to have formed from primitive magmas produced by melting an undepleted mantle at depth and erupted without significant fractionation. However, apparent differences between Gusev rocks and shergottites in their ages, plagioclase abundances, and volatile contents preclude direct correlation. Orbital determinations of global olivine distribution and compositions by thermal emission spectroscopy suggest that olivine-rich rocks may be widespread. Because weathering under acidic conditions preferentially attacks olivine and disguises such rocks beneath alteration rinds, picritic basalts formed from primitive magmas may even be a common component of the Martian crust formed during ancient and recent times.
    Keywords: Lunar and Planetary Science and Exploration
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  • 3
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    The Phaeodactylum genome reveals the evolutionary history of diatom genomes (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-10-17
    Description: Diatoms are photosynthetic secondary endosymbionts found throughout marine and freshwater environments, and are believed to be responsible for around one-fifth of the primary productivity on Earth. The genome sequence of the marine centric diatom Thalassiosira pseudonana was recently reported, revealing a wealth of information about diatom biology. Here we report the complete genome sequence of the pennate diatom Phaeodactylum tricornutum and compare it with that of T. pseudonana to clarify evolutionary origins, functional significance and ubiquity of these features throughout diatoms. In spite of the fact that the pennate and centric lineages have only been diverging for 90 million years, their genome structures are dramatically different and a substantial fraction of genes ( approximately 40%) are not shared by these representatives of the two lineages. Analysis of molecular divergence compared with yeasts and metazoans reveals rapid rates of gene diversification in diatoms. Contributing factors include selective gene family expansions, differential losses and gains of genes and introns, and differential mobilization of transposable elements. Most significantly, we document the presence of hundreds of genes from bacteria. More than 300 of these gene transfers are found in both diatoms, attesting to their ancient origins, and many are likely to provide novel possibilities for metabolite management and for perception of environmental signals. These findings go a long way towards explaining the incredible diversity and success of the diatoms in contemporary oceans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bowler, Chris -- Allen, Andrew E -- Badger, Jonathan H -- Grimwood, Jane -- Jabbari, Kamel -- Kuo, Alan -- Maheswari, Uma -- Martens, Cindy -- Maumus, Florian -- Otillar, Robert P -- Rayko, Edda -- Salamov, Asaf -- Vandepoele, Klaas -- Beszteri, Bank -- Gruber, Ansgar -- Heijde, Marc -- Katinka, Michael -- Mock, Thomas -- Valentin, Klaus -- Verret, Frederic -- Berges, John A -- Brownlee, Colin -- Cadoret, Jean-Paul -- Chiovitti, Anthony -- Choi, Chang Jae -- Coesel, Sacha -- De Martino, Alessandra -- Detter, J Chris -- Durkin, Colleen -- Falciatore, Angela -- Fournet, Jerome -- Haruta, Miyoshi -- Huysman, Marie J J -- Jenkins, Bethany D -- Jiroutova, Katerina -- Jorgensen, Richard E -- Joubert, Yolaine -- Kaplan, Aaron -- Kroger, Nils -- Kroth, Peter G -- La Roche, Julie -- Lindquist, Erica -- Lommer, Markus -- Martin-Jezequel, Veronique -- Lopez, Pascal J -- Lucas, Susan -- Mangogna, Manuela -- McGinnis, Karen -- Medlin, Linda K -- Montsant, Anton -- Oudot-Le Secq, Marie-Pierre -- Napoli, Carolyn -- Obornik, Miroslav -- Parker, Micaela Schnitzler -- Petit, Jean-Louis -- Porcel, Betina M -- Poulsen, Nicole -- Robison, Matthew -- Rychlewski, Leszek -- Rynearson, Tatiana A -- Schmutz, Jeremy -- Shapiro, Harris -- Siaut, Magali -- Stanley, Michele -- Sussman, Michael R -- Taylor, Alison R -- Vardi, Assaf -- von Dassow, Peter -- Vyverman, Wim -- Willis, Anusuya -- Wyrwicz, Lucjan S -- Rokhsar, Daniel S -- Weissenbach, Jean -- Armbrust, E Virginia -- Green, Beverley R -- Van de Peer, Yves -- Grigoriev, Igor V -- England -- Nature. 2008 Nov 13;456(7219):239-44. doi: 10.1038/nature07410. Epub 2008 Oct 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CNRS UMR8186, Department of Biology, Ecole Normale Superieure, 46 rue d'Ulm, 75005 Paris, France. cbowler@biologie.ens.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18923393" target="_blank"〉PubMed〈/a〉
    Keywords: DNA, Algal/analysis ; Diatoms/*genetics ; *Evolution, Molecular ; Genes, Bacterial/genetics ; Genome/*genetics ; Molecular Sequence Data ; Protein Structure, Tertiary ; Sequence Homology, Amino Acid ; Signal Transduction
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 4
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    An integrated genomic analysis of human glioblastoma multiforme (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-09-06
    Description: Glioblastoma multiforme (GBM) is the most common and lethal type of brain cancer. To identify the genetic alterations in GBMs, we sequenced 20,661 protein coding genes, determined the presence of amplifications and deletions using high-density oligonucleotide arrays, and performed gene expression analyses using next-generation sequencing technologies in 22 human tumor samples. This comprehensive analysis led to the discovery of a variety of genes that were not known to be altered in GBMs. Most notably, we found recurrent mutations in the active site of isocitrate dehydrogenase 1 (IDH1) in 12% of GBM patients. Mutations in IDH1 occurred in a large fraction of young patients and in most patients with secondary GBMs and were associated with an increase in overall survival. These studies demonstrate the value of unbiased genomic analyses in the characterization of human brain cancer and identify a potentially useful genetic alteration for the classification and targeted therapy of GBMs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2820389/" 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/PMC2820389/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parsons, D Williams -- Jones, Sian -- Zhang, Xiaosong -- Lin, Jimmy Cheng-Ho -- Leary, Rebecca J -- Angenendt, Philipp -- Mankoo, Parminder -- Carter, Hannah -- Siu, I-Mei -- Gallia, Gary L -- Olivi, Alessandro -- McLendon, Roger -- Rasheed, B Ahmed -- Keir, Stephen -- Nikolskaya, Tatiana -- Nikolsky, Yuri -- Busam, Dana A -- Tekleab, Hanna -- Diaz, Luis A Jr -- Hartigan, James -- Smith, Doug R -- Strausberg, Robert L -- Marie, Suely Kazue Nagahashi -- Shinjo, Sueli Mieko Oba -- Yan, Hai -- Riggins, Gregory J -- Bigner, Darell D -- Karchin, Rachel -- Papadopoulos, Nick -- Parmigiani, Giovanni -- Vogelstein, Bert -- Velculescu, Victor E -- Kinzler, Kenneth W -- 5P50-NS-20023/NS/NINDS NIH HHS/ -- CA09547/CA/NCI NIH HHS/ -- CA108786/CA/NCI NIH HHS/ -- CA11898/CA/NCI NIH HHS/ -- CA121113/CA/NCI NIH HHS/ -- CA43460/CA/NCI NIH HHS/ -- CA57345/CA/NCI NIH HHS/ -- CA62924/CA/NCI NIH HHS/ -- NS052507/NS/NINDS NIH HHS/ -- P50 CA062924/CA/NCI NIH HHS/ -- P50 CA062924-160017/CA/NCI NIH HHS/ -- R01 CA121113/CA/NCI NIH HHS/ -- R01 CA121113-04/CA/NCI NIH HHS/ -- R01 CA140316/CA/NCI NIH HHS/ -- R37 CA043460/CA/NCI NIH HHS/ -- R37 CA043460-27/CA/NCI NIH HHS/ -- R37 CA057345/CA/NCI NIH HHS/ -- R37 CA057345-13/CA/NCI NIH HHS/ -- R37 CA057345-17/CA/NCI NIH HHS/ -- R37 CA057345-18/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Sep 26;321(5897):1807-12. doi: 10.1126/science.1164382. Epub 2008 Sep 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Center for Cancer Genetics and Therapeutics, and Howard Hughes Medical Institute at Johns Hopkins Kimmel Cancer Center, Baltimore, MD 21231, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18772396" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Brain Neoplasms/*genetics/mortality ; Female ; Gene Amplification ; Gene Dosage ; Gene Expression Profiling ; Gene Expression Regulation, Neoplastic ; Genome, Human ; Glioblastoma/*genetics/mortality ; Humans ; Isocitrate Dehydrogenase/chemistry/*genetics ; Male ; Middle Aged ; *Mutation ; Mutation, Missense ; Oligonucleotide Array Sequence Analysis ; Polymorphism, Single Nucleotide ; Sequence Analysis, DNA ; Signal Transduction ; Survival Rate
    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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    Core signaling pathways in human pancreatic cancers revealed by global genomic analyses (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-09-06
    Description: There are currently few therapeutic options for patients with pancreatic cancer, and new insights into the pathogenesis of this lethal disease are urgently needed. Toward this end, we performed a comprehensive genetic analysis of 24 pancreatic cancers. We first determined the sequences of 23,219 transcripts, representing 20,661 protein-coding genes, in these samples. Then, we searched for homozygous deletions and amplifications in the tumor DNA by using microarrays containing probes for approximately 10(6) single-nucleotide polymorphisms. We found that pancreatic cancers contain an average of 63 genetic alterations, the majority of which are point mutations. These alterations defined a core set of 12 cellular signaling pathways and processes that were each genetically altered in 67 to 100% of the tumors. Analysis of these tumors' transcriptomes with next-generation sequencing-by-synthesis technologies provided independent evidence for the importance of these pathways and processes. Our data indicate that genetically altered core pathways and regulatory processes only become evident once the coding regions of the genome are analyzed in depth. Dysregulation of these core pathways and processes through mutation can explain the major features of pancreatic tumorigenesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2848990/" 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/PMC2848990/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, Sian -- Zhang, Xiaosong -- Parsons, D Williams -- Lin, Jimmy Cheng-Ho -- Leary, Rebecca J -- Angenendt, Philipp -- Mankoo, Parminder -- Carter, Hannah -- Kamiyama, Hirohiko -- Jimeno, Antonio -- Hong, Seung-Mo -- Fu, Baojin -- Lin, Ming-Tseh -- Calhoun, Eric S -- Kamiyama, Mihoko -- Walter, Kimberly -- Nikolskaya, Tatiana -- Nikolsky, Yuri -- Hartigan, James -- Smith, Douglas R -- Hidalgo, Manuel -- Leach, Steven D -- Klein, Alison P -- Jaffee, Elizabeth M -- Goggins, Michael -- Maitra, Anirban -- Iacobuzio-Donahue, Christine -- Eshleman, James R -- Kern, Scott E -- Hruban, Ralph H -- Karchin, Rachel -- Papadopoulos, Nickolas -- Parmigiani, Giovanni -- Vogelstein, Bert -- Velculescu, Victor E -- Kinzler, Kenneth W -- CA121113/CA/NCI NIH HHS/ -- CA43460/CA/NCI NIH HHS/ -- CA57345/CA/NCI NIH HHS/ -- CA62924/CA/NCI NIH HHS/ -- P50 CA062924/CA/NCI NIH HHS/ -- P50 CA062924-130011/CA/NCI NIH HHS/ -- P50 CA062924-140011/CA/NCI NIH HHS/ -- P50 CA062924-160017/CA/NCI NIH HHS/ -- R01 CA121113/CA/NCI NIH HHS/ -- R01 CA121113-04/CA/NCI NIH HHS/ -- R37 CA043460/CA/NCI NIH HHS/ -- R37 CA043460-27/CA/NCI NIH HHS/ -- R37 CA057345/CA/NCI NIH HHS/ -- R37 CA057345-17/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2008 Sep 26;321(5897):1801-6. doi: 10.1126/science.1164368. Epub 2008 Sep 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Sol Goldman Pancreatic Cancer Research Center, Ludwig Center and Howard Hughes Medical Institute at the Johns Hopkins Kimmel Cancer Center, Baltimore, MD 21231, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18772397" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/etiology/*genetics/*metabolism ; Algorithms ; Carcinoma, Pancreatic Ductal/etiology/genetics/metabolism ; Computational Biology ; Gene Amplification ; Gene Expression Profiling ; Genome, Human ; Humans ; Models, Molecular ; *Mutation ; Mutation, Missense ; Oligonucleotide Array Sequence Analysis ; Pancreatic Neoplasms/etiology/*genetics/*metabolism ; Point Mutation ; Polymorphism, Single Nucleotide ; Sequence Deletion ; Signal Transduction/*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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  • 6
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    Pickup Ion Mass Spectrometry for Surface Bounded Exospheres and Composition Mapping of Lunar and Planetary Surfaces (2005)
    In:  CASI
    Details
    Publication Date: 2017-10-02
    Description: Many of the small to medium sized objects in the solar system can be characterized as having surface bounded exospheres, or atmospheres so tenuous that scale lengths for inter-particle collisions are much larger than the dimensions of the objects. The atmospheres of these objects are the product of their surfaces, both the surface composition and the interactions that occur on them and also their interiors when gases escape from there. Thus by studying surface bounded exospheres it is possible to develop insight into the composition and processes that are taking place on the surface and interiors of these objects. The Moon and Mercury are two examples of planetary bodies with surface bounded exospheres that have been studied through spectroscopic observations of sodium, potassium, and, on the moon, mass spectrometric measurements of lunar gases such as argon and helium.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Lunar and Planetary Science XXXVI, Part 11; LPI-Contrib-1234-Pt-11
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  • 7
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    Mars Sulfate Formation Sourced in Sulfide-Enriched Subsurface Fluids: The Rio Tinto Model (2007)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The extensive evidence for sulfate deposits on Mars provided by analyses of MER and Mars Express data shows that the sulfur played an essential role in the geochemical cycles of the planet, including reservoirs in the atmosphere, hydro-sphere and geosphere. Overall the data are consistent with a fluvial/lacustrine-evaporative origin of at least some of the sulfate deposits, with mineral precipitation through oversaturation of salty acidic fluids enriched in sulfates. This scenario requires reservoirs of sulfur and associated cations, as well as an acidic and oxidizing hydrochemistry which could be provided by surface and subsurface catching of meteoric waters resulting in the presence of sulfur-bearing gases and steam photochemistry. In this work we suggest a new scenario for the extensive generation of sulfates in Mars based on the observation of seasonal changes in the redox and pH of subsurface waters enriched in sulfur that supply the acidic Mars process analog of Rio Tinto. This model considers the long-term subsurface storage of sulfur during most of Noachian and its release from the late Noachian to Hesperian time through weathering by meteoric fluids that would acidify and oxidize the sulfur bearing compounds stored in the subsurface.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Lunar and Planetary Science Conference; Mar 12, 2007 - Mar 16, 2007; Houston, TX; United States
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  • 8
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    Geomorphic and Aqueous Chemistry of a Portion of the Upper Rio Tinto System, Spain (2007)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Observations from the two Mars rovers, Spirit and Opportunity, combined with discoveries of extensive hydrated sulfate deposits from OMEGA and CRISM show that aqueous deposition and alteration involving acidic systems and sulfate deposition has been a key contributor to the martian geologic record. Rio Tinto, Spain, provides a process model for formation of sulfates on Mars by evaporation of acidic waters within shallow fluvial pools, particularly during dry seasons. We present results from a detailed investigation of an upper portion of the Rio Tinto, focusing on geomorphology, clastic sediment transport, and acidic aqueous processes. We also lay out lessons-learned for under-standing sulfate formation and alteration on Mars.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Lunar and Planetary Science Conference; Mar 12, 2007 - Mar 16, 2007; Houston, TX; United States
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  • 9
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    Mapping GFP structure evolution during proton transfer with femtosecond Raman spectroscopy (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-11-13
    Description: Tracing the transient atomic motions that lie at the heart of chemical reactions requires high-resolution multidimensional structural information on the timescale of molecular vibrations, which commonly range from 10 fs to 1 ps. For simple chemical systems, it has been possible to map out in considerable detail the reactive potential-energy surfaces describing atomic motions and resultant reaction dynamics, but such studies remain challenging for complex chemical and biological transformations. A case in point is the green fluorescent protein (GFP) from the jellyfish Aequorea victoria, which is a widely used gene expression marker owing to its efficient bioluminescence. This feature is known to arise from excited-state proton transfer (ESPT), yet the atomistic details of the process are still not fully understood. Here we show that femtosecond stimulated Raman spectroscopy provides sufficiently detailed and time-resolved vibrational spectra of the electronically excited chromophore of GFP to reveal skeletal motions involved in the proton transfer that produces the fluorescent form of the protein. In particular, we observe that the frequencies and intensities of two marker bands, the C-O and C = N stretching modes at opposite ends of the conjugated chromophore, oscillate out of phase with a period of 280 fs; we attribute these oscillations to impulsively excited low-frequency phenoxyl-ring motions, which optimize the geometry of the chromophore for ESPT. Our findings illustrate that femtosecond simulated Raman spectroscopy is a powerful approach to revealing the real-time nuclear dynamics that make up a multidimensional polyatomic reaction coordinate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fang, Chong -- Frontiera, Renee R -- Tran, Rosalie -- Mathies, Richard A -- England -- Nature. 2009 Nov 12;462(7270):200-4. doi: 10.1038/nature08527.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley, California 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19907490" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Evolution, Molecular ; Green Fluorescent Proteins/*chemistry/genetics/*metabolism ; Models, Molecular ; Movement ; Protons ; Spectrum Analysis, Raman ; Time Factors ; *Vibration
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 10
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    Impact of genome reduction on bacterial metabolism and its regulation (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-12-08
    Description: To understand basic principles of bacterial metabolism organization and regulation, but also the impact of genome size, we systematically studied one of the smallest bacteria, Mycoplasma pneumoniae. A manually curated metabolic network of 189 reactions catalyzed by 129 enzymes allowed the design of a defined, minimal medium with 19 essential nutrients. More than 1300 growth curves were recorded in the presence of various nutrient concentrations. Measurements of biomass indicators, metabolites, and 13C-glucose experiments provided information on directionality, fluxes, and energetics; integration with transcription profiling enabled the global analysis of metabolic regulation. Compared with more complex bacteria, the M. pneumoniae metabolic network has a more linear topology and contains a higher fraction of multifunctional enzymes; general features such as metabolite concentrations, cellular energetics, adaptability, and global gene expression responses are similar, however.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yus, Eva -- Maier, Tobias -- Michalodimitrakis, Konstantinos -- van Noort, Vera -- Yamada, Takuji -- Chen, Wei-Hua -- Wodke, Judith A H -- Guell, Marc -- Martinez, Sira -- Bourgeois, Ronan -- Kuhner, Sebastian -- Raineri, Emanuele -- Letunic, Ivica -- Kalinina, Olga V -- Rode, Michaela -- Herrmann, Richard -- Gutierrez-Gallego, Ricardo -- Russell, Robert B -- Gavin, Anne-Claude -- Bork, Peer -- Serrano, Luis -- New York, N.Y. -- Science. 2009 Nov 27;326(5957):1263-8. doi: 10.1126/science.1177263.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Genomic Regulation (CRG) and Universitat Pompeu Fabra, Avenida Dr. Aiguader 88, 08003 Barcelona, Spain.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965476" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Bacterial Proteins/*metabolism ; Culture Media ; Energy Metabolism ; Enzymes/genetics/metabolism ; Gene Expression Profiling ; *Gene Expression Regulation, Bacterial ; *Genome, Bacterial ; Glycolysis ; *Metabolic Networks and Pathways ; Mycoplasma pneumoniae/*genetics/growth & development/*metabolism ; RNA, Bacterial/genetics/metabolism ; Signal Transduction ; Systems Biology ; Transcription, Genetic ; rRNA Operon
    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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