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  • 1
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    Methods for improved dip determination in water-based mud with the six-arm dipmeter (1993)
    Halliburton Energy Services, Technical Papers
    In:  Professional Paper, Open Hole Logging, Washington, D. C., Halliburton Energy Services, Technical Papers, vol. 65, no. 16, pp. 243-271, (ISBN 1-86239-165-3, vi + 330 pp.)
    Details
    Publication Date: 1993
    Keywords: Borehole geophys. ; Dipmeter, ~analysis
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Pliocene hominin diversity conundrum [Biological Sciences] (2016)
    National Academy of Sciences
    Details
    Publication Date: 2016-06-08
    Description: Recent discoveries of multiple middle Pliocene hominins have raised the possibility that early hominins were as speciose as later hominins. However, debates continue to arise around the validity of most of these new taxa, largely based on poor preservation of holotype specimens, small sample size, or the lack of evidence...
    Keywords: Human Origins Special Feature
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 3
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    Cancer-associated IDH1 mutations produce 2-hydroxyglutarate (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-11-26
    Description: Mutations in the enzyme cytosolic isocitrate dehydrogenase 1 (IDH1) are a common feature of a major subset of primary human brain cancers. These mutations occur at a single amino acid residue of the IDH1 active site, resulting in loss of the enzyme's ability to catalyse conversion of isocitrate to alpha-ketoglutarate. However, only a single copy of the gene is mutated in tumours, raising the possibility that the mutations do not result in a simple loss of function. Here we show that cancer-associated IDH1 mutations result in a new ability of the enzyme to catalyse the NADPH-dependent reduction of alpha-ketoglutarate to R(-)-2-hydroxyglutarate (2HG). Structural studies demonstrate that when arginine 132 is mutated to histidine, residues in the active site are shifted to produce structural changes consistent with reduced oxidative decarboxylation of isocitrate and acquisition of the ability to convert alpha-ketoglutarate to 2HG. Excess accumulation of 2HG has been shown to lead to an elevated risk of malignant brain tumours in patients with inborn errors of 2HG metabolism. Similarly, in human malignant gliomas harbouring IDH1 mutations, we find markedly elevated levels of 2HG. These data demonstrate that the IDH1 mutations result in production of the onco-metabolite 2HG, and indicate that the excess 2HG which accumulates in vivo contributes to the formation and malignant progression of gliomas.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2818760/" 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/PMC2818760/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dang, Lenny -- White, David W -- Gross, Stefan -- Bennett, Bryson D -- Bittinger, Mark A -- Driggers, Edward M -- Fantin, Valeria R -- Jang, Hyun Gyung -- Jin, Shengfang -- Keenan, Marie C -- Marks, Kevin M -- Prins, Robert M -- Ward, Patrick S -- Yen, Katharine E -- Liau, Linda M -- Rabinowitz, Joshua D -- Cantley, Lewis C -- Thompson, Craig B -- Vander Heiden, Matthew G -- Su, Shinsan M -- P01 CA104838/CA/NCI NIH HHS/ -- P01 CA104838-05/CA/NCI NIH HHS/ -- P30 EB009998/EB/NIBIB NIH HHS/ -- R01 CA105463/CA/NCI NIH HHS/ -- R01 CA105463-06/CA/NCI NIH HHS/ -- R21 CA128620/CA/NCI NIH HHS/ -- England -- Nature. 2009 Dec 10;462(7274):739-44. doi: 10.1038/nature08617. Epub .〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Agios Pharmaceuticals, Cambridge, Massachusetts 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19935646" target="_blank"〉PubMed〈/a〉
    Keywords: Arginine/genetics ; Brain Neoplasms/*genetics/*metabolism/pathology ; Catalytic Domain ; Cell Line ; Crystallography, X-Ray ; Disease Progression ; Enzyme Assays ; Glioma/genetics/metabolism/pathology ; Glutarates/*metabolism ; Histidine/genetics/metabolism ; Humans ; Isocitrate Dehydrogenase/*genetics/*metabolism ; Ketoglutaric Acids/metabolism ; Models, Molecular ; Mutant Proteins/*genetics/*metabolism ; Mutation/genetics ; Protein Conformation
    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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    Cancer-associated IDH1 mutations produce 2-hydroxyglutarate (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-06-19
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3766976/" 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/PMC3766976/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dang, Lenny -- White, David W -- Gross, Stefan -- Bennett, Bryson D -- Bittinger, Mark A -- Driggers, Edward M -- Fantin, Valeria R -- Jang, Hyun Gyung -- Jin, Shengfang -- Keenan, Marie C -- Marks, Kevin M -- Prins, Robert M -- Ward, Patrick S -- Yen, Katharine E -- Liau, Linda M -- Rabinowitz, Joshua D -- Cantley, Lewis C -- Thompson, Craig B -- Vander Heiden, Matthew G -- Su, Shinsan M -- R01 CA105463/CA/NCI NIH HHS/ -- England -- Nature. 2010 Jun 17;465(7300):966. doi: 10.1038/nature09132.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20559394" target="_blank"〉PubMed〈/a〉
    Keywords: Age Factors ; Glutarates/*metabolism ; Humans ; Isocitrate Dehydrogenase/*genetics ; Mutation/*genetics ; Neoplasms/*physiopathology
    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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  • 5
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    Targeted inhibition of mutant IDH2 in leukemia cells induces cellular differentiation (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-04-06
    Description: A number of human cancers harbor somatic point mutations in the genes encoding isocitrate dehydrogenases 1 and 2 (IDH1 and IDH2). These mutations alter residues in the enzyme active sites and confer a gain-of-function in cancer cells, resulting in the accumulation and secretion of the oncometabolite (R)-2-hydroxyglutarate (2HG). We developed a small molecule, AGI-6780, that potently and selectively inhibits the tumor-associated mutant IDH2/R140Q. A crystal structure of AGI-6780 complexed with IDH2/R140Q revealed that the inhibitor binds in an allosteric manner at the dimer interface. The results of steady-state enzymology analysis were consistent with allostery and slow-tight binding by AGI-6780. Treatment with AGI-6780 induced differentiation of TF-1 erythroleukemia and primary human acute myelogenous leukemia cells in vitro. These data provide proof-of-concept that inhibitors targeting mutant IDH2/R140Q could have potential applications as a differentiation therapy for cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Fang -- Travins, Jeremy -- DeLaBarre, Byron -- Penard-Lacronique, Virginie -- Schalm, Stefanie -- Hansen, Erica -- Straley, Kimberly -- Kernytsky, Andrew -- Liu, Wei -- Gliser, Camelia -- Yang, Hua -- Gross, Stefan -- Artin, Erin -- Saada, Veronique -- Mylonas, Elena -- Quivoron, Cyril -- Popovici-Muller, Janeta -- Saunders, Jeffrey O -- Salituro, Francesco G -- Yan, Shunqi -- Murray, Stuart -- Wei, Wentao -- Gao, Yi -- Dang, Lenny -- Dorsch, Marion -- Agresta, Sam -- Schenkein, David P -- Biller, Scott A -- Su, Shinsan M -- de Botton, Stephane -- Yen, Katharine E -- New York, N.Y. -- Science. 2013 May 3;340(6132):622-6. doi: 10.1126/science.1234769. Epub 2013 Apr 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Agios Pharmaceuticals, Cambridge, MA 02139-4169, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23558173" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Site ; Antineoplastic Agents/chemistry/metabolism/pharmacology ; Catalytic Domain ; Cell Line, Tumor ; Cell Proliferation ; Cells, Cultured ; Crystallography, X-Ray ; Enzyme Inhibitors/chemistry/metabolism/*pharmacology ; Erythropoiesis/drug effects ; Gene Expression Regulation, Leukemic ; Glutarates/metabolism ; Hematopoiesis/*drug effects ; Humans ; Isocitrate Dehydrogenase/*antagonists & inhibitors/chemistry/*genetics/metabolism ; Leukemia, Erythroblastic, Acute ; Leukemia, Myeloid, Acute/drug therapy/*enzymology/genetics/pathology ; Molecular Targeted Therapy ; Mutant Proteins/antagonists & inhibitors/chemistry/metabolism ; Phenylurea Compounds/chemistry/metabolism/*pharmacology ; Point Mutation ; Protein Multimerization ; Protein Structure, Secondary ; Small Molecule Libraries ; Sulfonamides/chemistry/metabolism/*pharmacology
    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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  • 6
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    IDH1(R132H) mutation increases murine haematopoietic progenitors and alters epigenetics (2012)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2012-07-06
    Description: Mutations in the IDH1 and IDH2 genes encoding isocitrate dehydrogenases are frequently found in human glioblastomas and cytogenetically normal acute myeloid leukaemias (AML). These alterations are gain-of-function mutations in that they drive the synthesis of the 'oncometabolite' R-2-hydroxyglutarate (2HG). It remains unclear how IDH1 and IDH2 mutations modify myeloid cell development and promote leukaemogenesis. Here we report the characterization of conditional knock-in (KI) mice in which the most common IDH1 mutation, IDH1(R132H), is inserted into the endogenous murine Idh1 locus and is expressed in all haematopoietic cells (Vav-KI mice) or specifically in cells of the myeloid lineage (LysM-KI mice). These mutants show increased numbers of early haematopoietic progenitors and develop splenomegaly and anaemia with extramedullary haematopoiesis, suggesting a dysfunctional bone marrow niche. Furthermore, LysM-KI cells have hypermethylated histones and changes to DNA methylation similar to those observed in human IDH1- or IDH2-mutant AML. To our knowledge, our study is the first to describe the generation and characterization of conditional IDH1(R132H)-KI mice, and also the first report to demonstrate the induction of a leukaemic DNA methylation signature in a mouse model. Our report thus sheds light on the mechanistic links between IDH1 mutation and human AML.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4005896/" 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/PMC4005896/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sasaki, Masato -- Knobbe, Christiane B -- Munger, Joshua C -- Lind, Evan F -- Brenner, Dirk -- Brustle, Anne -- Harris, Isaac S -- Holmes, Roxanne -- Wakeham, Andrew -- Haight, Jillian -- You-Ten, Annick -- Li, Wanda Y -- Schalm, Stefanie -- Su, Shinsan M -- Virtanen, Carl -- Reifenberger, Guido -- Ohashi, Pamela S -- Barber, Dwayne L -- Figueroa, Maria E -- Melnick, Ari -- Zuniga-Pflucker, Juan-Carlos -- Mak, Tak W -- R01 AI081773/AI/NIAID NIH HHS/ -- Canadian Institutes of Health Research/Canada -- England -- Nature. 2012 Aug 30;488(7413):656-9. doi: 10.1038/nature11323.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Campbell Family Institute for Breast Cancer Research, Ontario Cancer Institute, University Health Network, Toronto, Ontario M5G 2C1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22763442" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Bone Marrow/pathology ; Cell Lineage ; CpG Islands/genetics ; DNA Methylation ; Disease Models, Animal ; Epigenesis, Genetic/*genetics ; Female ; Gene Knock-In Techniques ; Glioma/pathology ; Hematopoiesis ; Hematopoietic Stem Cells/*cytology/metabolism ; Histones/metabolism ; Humans ; Isocitrate Dehydrogenase/*genetics/*metabolism ; Leukemia, Myeloid, Acute/genetics ; Male ; Mice ; Mutant Proteins/genetics/*metabolism ; Mutation/*genetics ; Myeloid Cells/cytology/metabolism ; Spleen/pathology
    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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  • 7
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    An inhibitor of mutant IDH1 delays growth and promotes differentiation of glioma cells (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-04-06
    Description: The recent discovery of mutations in metabolic enzymes has rekindled interest in harnessing the altered metabolism of cancer cells for cancer therapy. One potential drug target is isocitrate dehydrogenase 1 (IDH1), which is mutated in multiple human cancers. Here, we examine the role of mutant IDH1 in fully transformed cells with endogenous IDH1 mutations. A selective R132H-IDH1 inhibitor (AGI-5198) identified through a high-throughput screen blocked, in a dose-dependent manner, the ability of the mutant enzyme (mIDH1) to produce R-2-hydroxyglutarate (R-2HG). Under conditions of near-complete R-2HG inhibition, the mIDH1 inhibitor induced demethylation of histone H3K9me3 and expression of genes associated with gliogenic differentiation. Blockade of mIDH1 impaired the growth of IDH1-mutant--but not IDH1-wild-type--glioma cells without appreciable changes in genome-wide DNA methylation. These data suggest that mIDH1 may promote glioma growth through mechanisms beyond its well-characterized epigenetic effects.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3985613/" 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/PMC3985613/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rohle, Dan -- Popovici-Muller, Janeta -- Palaskas, Nicolaos -- Turcan, Sevin -- Grommes, Christian -- Campos, Carl -- Tsoi, Jennifer -- Clark, Owen -- Oldrini, Barbara -- Komisopoulou, Evangelia -- Kunii, Kaiko -- Pedraza, Alicia -- Schalm, Stefanie -- Silverman, Lee -- Miller, Alexandra -- Wang, Fang -- Yang, Hua -- Chen, Yue -- Kernytsky, Andrew -- Rosenblum, Marc K -- Liu, Wei -- Biller, Scott A -- Su, Shinsan M -- Brennan, Cameron W -- Chan, Timothy A -- Graeber, Thomas G -- Yen, Katharine E -- Mellinghoff, Ingo K -- 1R01NS080944-01/NS/NINDS NIH HHS/ -- R01 NS080944/NS/NINDS NIH HHS/ -- U54CA143798/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2013 May 3;340(6132):626-30. doi: 10.1126/science.1236062. Epub 2013 Apr 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23558169" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzeneacetamides/administration & dosage/*pharmacology/toxicity ; *Cell Differentiation/drug effects ; Cell Transformation, Neoplastic ; Enzyme Inhibitors/*pharmacology/toxicity ; Gene Expression Profiling ; Gene Expression Regulation, Neoplastic/drug effects ; Glioma/drug therapy/*enzymology/genetics/*pathology ; Glutarates/metabolism ; Histones/metabolism ; Imidazoles/administration & dosage/*pharmacology/toxicity ; Isocitrate Dehydrogenase/*antagonists & inhibitors/chemistry/*genetics/metabolism ; Methylation ; Mice ; Mice, SCID ; Mutant Proteins/antagonists & inhibitors/chemistry/metabolism ; Protein Multimerization ; RNA Interference ; Xenograft Model Antitumor Assays
    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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  • 8
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    ALDH2 suppresses liver tumors [Medical Sciences] (2015)
    National Academy of Sciences
    Details
    Publication Date: 2015-07-22
    Description: Mitochondrial aldehyde dehydrogenase 2 (ALDH2) in the liver removes toxic aldehydes including acetaldehyde, an intermediate of ethanol metabolism. Nearly 40% of East Asians inherit an inactive ALDH2*2 variant, which has a lysine-for-glutamate substitution at position 487 (E487K), and show a characteristic alcohol flush reaction after drinking and a higher risk...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 9
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    Su et al. Reply: (2011)
    American Physical Society (APS)
    Details
    Publication Date: 2011-06-15
    Description: Author(s): W. B. Su, S. M. Lu, C. S. Chang, and Tien T. Tsong A Reply to the Comment by A. Zugarramurdi et al. [Phys. Rev. Lett. 106, 249602] Published Tue Jun 14, 2011
    Keywords: Comments
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Published by American Physical Society (APS)
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  • 10
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    Heavy metal accumulation and source analysis in greenhouse soils of Wuwei District, Gansu Province, China (2014)
    Springer
    Details
    Publication Date: 2014-11-28
    Print ISSN: 0944-1344
    Electronic ISSN: 1614-7499
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
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