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  • copper  (2)
  • Carrier Proteins/antagonists & inhibitors/metabolism/pharmacology/*physiology  (1)
  • Chromosome Mapping  (1)
  • Citrate (si)-Synthase/*chemistry  (1)
  • 1995-1999  (4)
  • 1970-1974
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  • 1
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    Unknown
    PTEN, a putative protein tyrosine phosphatase gene mutated in human brain, breast, and prostate cancer (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-03-28
    Description: Mapping of homozygous deletions on human chromosome 10q23 has led to the isolation of a candidate tumor suppressor gene, PTEN, that appears to be mutated at considerable frequency in human cancers. In preliminary screens, mutations of PTEN were detected in 31% (13/42) of glioblastoma cell lines and xenografts, 100% (4/4) of prostate cancer cell lines, 6% (4/65) of breast cancer cell lines and xenografts, and 17% (3/18) of primary glioblastomas. The predicted PTEN product has a protein tyrosine phosphatase domain and extensive homology to tensin, a protein that interacts with actin filaments at focal adhesions. These homologies suggest that PTEN may suppress tumor cell growth by antagonizing protein tyrosine kinases and may regulate tumor cell invasion and metastasis through interactions at focal adhesions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, J -- Yen, C -- Liaw, D -- Podsypanina, K -- Bose, S -- Wang, S I -- Puc, J -- Miliaresis, C -- Rodgers, L -- McCombie, R -- Bigner, S H -- Giovanella, B C -- Ittmann, M -- Tycko, B -- Hibshoosh, H -- Wigler, M H -- Parsons, R -- 5R35 CA39829/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1997 Mar 28;275(5308):1943-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, College of Physicians & Surgeons, Columbia University, 630 West 168 Street, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9072974" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Brain Neoplasms/genetics ; Breast Neoplasms/genetics ; Chromosome Mapping ; *Chromosomes, Human, Pair 10 ; Female ; Frameshift Mutation ; *Genes, Tumor Suppressor ; Glioblastoma/genetics ; Humans ; Male ; Microfilament Proteins/chemistry ; Molecular Sequence Data ; *Mutation ; Neoplasm Transplantation ; Neoplasms/*genetics ; PTEN Phosphohydrolase ; *Phosphoric Monoester Hydrolases ; Phosphotyrosine/metabolism ; Prostatic Neoplasms/genetics ; Protein Tyrosine Phosphatases/chemistry/*genetics/physiology ; Protein-Tyrosine Kinases/antagonists & inhibitors ; Sequence Deletion ; Sequence Homology, Amino Acid ; Transplantation, Heterologous ; Tumor Cells, Cultured ; *Tumor Suppressor Proteins
    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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    Chaperone function of Hsp90-associated proteins (1996)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1996-12-06
    Description: The Hsp90 heat shock protein of eukaryotic cells regulates the activity of proteins involved in signal transduction pathways and may direct intracellular protein folding in general. Hsp90 performs at least part of its function in a complex with a specific set of partner proteins that include members of the prolyl isomerase family. The properties of the major components of the Hsp90 complex were examined through the use of in vitro protein folding assays. Two of the components, FKBP52 and p23, functioned as mechanistically distinct molecular chaperones. These results suggest the existence of a super-chaperone complex in the cytosol of eukaryotic cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bose, S -- Weikl, T -- Bugl, H -- Buchner, J -- New York, N.Y. -- Science. 1996 Dec 6;274(5293):1715-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Biophysik und Physikalische Biochemie, Universitat Regensburg, 93040 Regensburg, Germany. johannes.buchner@biologie.uni-regensburg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8939863" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Isomerases/antagonists & inhibitors/metabolism ; Carrier Proteins/antagonists & inhibitors/metabolism/pharmacology/*physiology ; Citrate (si)-Synthase/*chemistry ; DNA-Binding Proteins/metabolism/pharmacology/*physiology ; Drosophila Proteins ; Enzyme Inhibitors/pharmacology ; HSP90 Heat-Shock Proteins/metabolism/*physiology ; Heat-Shock Proteins/metabolism/pharmacology/*physiology ; Intramolecular Oxidoreductases ; Janus Kinases ; Molecular Chaperones/metabolism/pharmacology/*physiology ; Peptidylprolyl Isomerase ; Phosphoproteins/metabolism/pharmacology/*physiology ; Polyenes/pharmacology ; Protein Denaturation ; *Protein Folding ; Protein-Tyrosine Kinases/metabolism/pharmacology ; Recombinant Proteins/metabolism ; Sirolimus ; Tacrolimus Binding Proteins ; Temperature ; Transcription Factors
    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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  • 3
    Electronic Resource
    Electronic Resource
    Effect of short-circuiting on the oxidation kinetics of copper and its doped varieties in the temperature range of 523–1073 K (1996)
    Springer
    Oxidation of metals 46 (1996), S. 73-107 
    Details
    ISSN: 1573-4889
    Keywords: oxidation ; copper ; Li-doped copper ; Cr-doped copper ; short-circuiting ; Mott's parabola ; Wagner's parabola
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The influence of shorting circuitry attachment between metal-oxide and oxideoxygen interfaces on the oxidation kinetics of copper, lithium-doped copper (Li: 400 ppm), and chromium-doped copper (Cr: 12 ppm) have been studied in dry air $$(P_{O_2 } = 21.27kPa)$$ in the temperature range of 523–1073 K. Oxide film or scale growth under short-circuiting as well as under normal oxidation conditions conforms to the parabolic rate law. The oxidation kinetics under short-circuiting resulted in decreased rates for Cu and Li-doped Cu up to a temperature of 773 K, while Cr-doped Cu exhibited an enhancement in rate compared to its normal oxidation in the same temperature range. However, above 873 K, all three systems under shorting circuitry attachment exhibited enhanced rates compared to their normal oxidation rates in conformity to the existing theoretical model. Use of additional resistances in series in the outer short-circuit Pt path have clearly established that below 773 K Mott's fieldinduced migration plays the most important role, while at elevated temperatures Wagner's electrochemical potential-gradient factor acts as the main driving force in the scale-growth process. The results have been interpreted on the basis of average defect concentration, the electrochemical potential gradient, electrical field gradient, and transport coefficient in the Cu2O layer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01046885
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  • 4
    Electronic Resource
    Electronic Resource
    Oxidation behavior of copper at high temperatures under two different modes of direct-current applications (1995)
    Springer
    Oxidation of metals 43 (1995), S. 185-215 
    Details
    ISSN: 1573-4889
    Keywords: copper ; oxidation ; direct current ; uninterrupted mode ; interrupted mode
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Oxidation kinetics of copper in the temperature range of 973–1173 K atP O 2=21.27 kPa exhibit enhancement and deceleration in the rates with changing polarity compared to normal oxidation under interrupted mode of directcurrent application. These conditions are achieved by connecting the oxidizing copper covered with an initially formed thin oxide film to the positive and negative terminal of a dc source, respectively. However, the influence of direction of the current is found to be opposite under uninterrupted mode of impressed current flow in the same temperature range. The effect of short-circuiting the metal to the outer oxide/air interface on the reaction kinetics is also reported. The rate of oxide-scale growth under normal condition, and two different modes of current applications as well as with shorting circuitry attachment conform to the parabolic growth law. The results pertaining to the two different modes of impressed current have been discussed considering both the phenomena of electrolysis of the oxide electrolyte and the polarization at the two phase boundaries. The enhancement and the reduction in rates under uninterrupted impressed current conditions are explained on the basis of increased and decreased average defect concentrations, respectively, within the oxide layer. The acceleration and deceleration in the rates under interrupted mode of current flow have been explained in the light of sustenance of a steeper and flatter electrochemical-potential gradient of defects, respectively, across the growing-oxide layer. The possible different responses of the metal/oxide and oxide/air interfaces to the impressed current brought into play by two different modes of current application, have enabled to display a better insight on the mechanistic aspects of scale growth under the influence of an externally applied current.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01047027
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