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  • 1995-1999  (452)
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  • 1
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    In:  Pageoph, Taipei, Conseil de l'Europe, vol. 153, no. 1, pp. 133-149, pp. 1551, (ISBN: 0-12-018847-3)
    Publication Date: 1998
    Keywords: Induced seismicity ; Rock bursts (see also ERDSTOSS and GEBIRGSSCHLAG) ; Mining geophysics ; Erdstoss ; Gebirgsschlag ; Seismicity ; Project report/description
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1999-01-15
    Description: Rod-coil diblock copolymers in a selective solvent for the coil-like polymer self-organize into hollow spherical micelles having diameters of a few micrometers. Long-range, close-packed self-ordering of the micelles produced highly iridescent periodic microporous materials. Solution-cast micellar films consisted of multilayers of hexagonally ordered arrays of spherical holes whose diameter, periodicity, and wall thickness depended on copolymer molecular weight and composition. Addition of fullerenes into the copolymer solutions also regulated the microstructure and optical properties of the microporous films. These results demonstrate the potential of hierarchical self-assembly of macromolecular components for engineering complex two- and three-dimensional periodic and functional mesostructures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jenekhe -- Chen -- New York, N.Y. -- Science. 1999 Jan 15;283(5400):372-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Chemical Engineering and Chemistry, University of Rochester, Rochester, NY 14627-0166, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9888850" target="_blank"〉PubMed〈/a〉
    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
    Publication Date: 1999-07-31
    Description: BRCA1 encodes a tumor suppressor that is mutated in familial breast and ovarian cancers. Here, it is shown that BRCA1 interacts in vitro and in vivo with hRad50, which forms a complex with hMre11 and p95/nibrin. Upon irradiation, BRCA1 was detected in discrete foci in the nucleus, which colocalize with hRad50. Formation of irradiation-induced foci positive for BRCA1, hRad50, hMre11, or p95 was dramatically reduced in HCC/1937 breast cancer cells carrying a homozygous mutation in BRCA1 but was restored by transfection of wild-type BRCA1. Ectopic expression of wild-type, but not mutated, BRCA1 in these cells rendered them less sensitive to the DNA damage agent, methyl methanesulfonate. These data suggest that BRCA1 is important for the cellular responses to DNA damage that are mediated by the hRad50-hMre11-p95 complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhong, Q -- Chen, C F -- Li, S -- Chen, Y -- Wang, C C -- Xiao, J -- Chen, P L -- Sharp, Z D -- Lee, W H -- CA 30195/CA/NCI NIH HHS/ -- CA 58183/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1999 Jul 30;285(5428):747-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Medicine, Institute of Biotechnology, University of Texas Health Science Center at San Antonio, 15355 Lambda Drive, San Antonio, TX 78245, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10426999" target="_blank"〉PubMed〈/a〉
    Keywords: BRCA1 Protein/*metabolism ; Cell Cycle Proteins/*metabolism ; Cell Nucleus/*metabolism ; Cell Survival ; *DNA Damage ; *DNA Repair Enzymes ; DNA-Binding Proteins/*metabolism ; Gamma Rays ; Genes, BRCA1 ; Humans ; Methyl Methanesulfonate/pharmacology ; Mutagens/pharmacology ; Mutation ; *Nuclear Proteins ; Rad51 Recombinase ; Recombination, Genetic ; Transfection ; Tumor Cells, Cultured
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 1998-04-02
    Description: Amphiphilic poly(phenylquinoline)-block-polystyrene rod-coil diblock copolymers were observed to self-organize into robust, micrometer-scale, spherical, vesicular, cylindrical, and lamellar aggregates from solution. These diverse aggregate morphologies were seen at each composition, but their size scale decreased with a decreasing fraction of the rigid-rod block. Compared to coil-coil block copolymer micelles, the present aggregates are larger by about two orders of magnitude and have aggregation numbers of over 10(8). The spherical and cylindrical aggregates have large hollow cavities. Only spherical aggregates with aggregation numbers in excess of 10(9) were formed in the presence of fullerenes (C60, C70) in solution, resulting in the solubilization and encapsulation of over 10(10) fullerene molecules per aggregate.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jenekhe -- Chen -- New York, N.Y. -- Science. 1998 Mar 20;279(5358):1903-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Chemical Engineering and Chemistry, University of Rochester, Rochester, NY 14627-0166, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9506934" target="_blank"〉PubMed〈/a〉
    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
    Publication Date: 1995-11-03
    Description: The BRCA1 gene product was identified as a 220-kilodalton nuclear phosphoprotein in normal cells, including breast ductal epithelial cells, and in 18 of 20 tumor cell lines derived from tissues other than breast and ovary. In 16 of 17 breast and ovarian cancer lines and 17 of 17 samples of cells obtained from malignant effusions, however, BRCA1 localized mainly in cytoplasm. Absence of BRCA1 or aberrant subcellular location was also observed to a variable extent in histological sections of many breast cancer biopsies. These findings suggest that BRCA1 abnormalities may be involved in the pathogenesis of many breast cancers, sporadic as well as familial.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Y -- Chen, C F -- Riley, D J -- Allred, D C -- Chen, P L -- Von Hoff, D -- Osborne, C K -- Lee, W H -- CA58318/CA/NCI NIH HHS/ -- EY05758/EY/NEI NIH HHS/ -- P50CA58183/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1995 Nov 3;270(5237):789-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Molecular Medicine/Institute of Biotechnology, University of Texas Health Science Center at San Antonio 78245, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7481765" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; BRCA1 Protein ; Base Sequence ; Breast/*chemistry ; Breast Neoplasms/*chemistry/ultrastructure ; Cell Fractionation ; Cell Line ; Cell Nucleus/chemistry ; Cytoplasm/*chemistry ; Female ; Humans ; Male ; Molecular Sequence Data ; Mutation ; Neoplasm Proteins/*analysis/genetics/metabolism ; Neoplasms/chemistry/ultrastructure ; Ovarian Neoplasms/chemistry/ultrastructure ; Pleural Effusion, Malignant/chemistry/pathology ; Transcription Factors/*analysis/genetics/metabolism ; Tumor Cells, Cultured
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    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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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-12-01
    Description: Human ribosomal RNA synthesis by RNA polymerase I requires the activator UBF and the promoter selectivity factor SL1, which consists of the TATA binding protein (TBP) and three associated subunits, TAFI110, TAFI63, and TAFI48. Here it is shown that both TAFI110 and TAFI63 contact the promoter, whereas TAFI48 serves as a target for interaction with UBF and is required to form a transcriptionally active SL1 complex responsive to UBF in vitro. TAFI48 also alters the ability of TBP to interact with TATA box elements, and the resulting complex fails to support transcription by RNA polymerase II. Thus, TAFI48 may function both as a target to mediate UBF activation and as a class-specific promoter selectivity factor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Beckmann, H -- Chen, J L -- O'Brien, T -- Tjian, R -- New York, N.Y. -- Science. 1995 Dec 1;270(5241):1506-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Molecular and Cell Biology, University of California, Berkeley 94720-3204, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7491500" target="_blank"〉PubMed〈/a〉
    Keywords: DNA-Binding Proteins/*metabolism ; HeLa Cells ; Humans ; *Pol1 Transcription Initiation Complex Proteins ; *Promoter Regions, Genetic ; RNA Polymerase I/*metabolism ; RNA Polymerase II/metabolism ; RNA, Ribosomal/biosynthesis/genetics ; Recombinant Proteins/metabolism ; TATA Box ; *TATA-Binding Protein Associated Factors ; TATA-Box Binding Protein ; *Transcription Factor TFIID ; Transcription Factors/*metabolism
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 1995-12-15
    Description: The rice Xa21 gene, which confers resistance to Xanthomonas oryzae pv. oryzae race 6, was isolated by positional cloning. Fifty transgenic rice plants carrying the cloned Xa21 gene display high levels of resistance to the pathogen. The sequence of the predicted protein, which carries both a leucine-rich repeat motif and a serine-threonine kinase-like domain, suggests a role in cell surface recognition of a pathogen ligand and subsequent activation of an intracellular defense response. Characterization of Xa21 should facilitate understanding of plant disease resistance and lead to engineered resistance in rice.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Song, W Y -- Wang, G L -- Chen, L L -- Kim, H S -- Pi, L Y -- Holsten, T -- Gardner, J -- Wang, B -- Zhai, W X -- Zhu, L H -- Fauquet, C -- Ronald, P -- New York, N.Y. -- Science. 1995 Dec 15;270(5243):1804-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology, University of California, Davis 95616, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8525370" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cloning, Molecular ; *Genes, Plant ; Genetic Linkage ; Molecular Sequence Data ; Oryza/enzymology/*genetics/microbiology ; Plant Diseases ; Plant Proteins/*genetics/metabolism ; Plants, Genetically Modified ; Protein-Serine-Threonine Kinases/*genetics/metabolism ; Receptor Protein-Tyrosine Kinases ; Receptors, Cell Surface/*genetics/metabolism ; Xanthomonas/physiology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 1996-12-06
    Description: The crust north of the Himalaya is generally electrically conductive below depths of 10 to 20 km. This conductive zone approaches the surface beneath the Kangmar dome (dipping north) and extends beneath the Zangbo suture. A profile crossing the northern Yadong-Gulu rift shows that the high conductivity region extends outside the rift, and its top within the rift coincides with a bright spot horizon imaged on the INDEPTH CMP (common midpoint) profiles. The high conductivity of the middle crust is atypical of stable continental regions and suggests that there is a regionally interconnected fluid phase in the crust of the region.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen -- Booker -- Jones -- Wu -- Unsworth -- Wei -- Tan -- New York, N.Y. -- Science. 1996 Dec 6;274(5293):1694-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Leshou Chen, Wenbo Wei, Handong Tan, China University of Geosciences, Beijing, China. J. R. Booker, Nong Wu, M. J. Unsworth, School of Geophysics, University of Washington, Seattle, WA 98195, USA. A. G. Jones, Geological Survey of Canada, 1 Observatory Crescent, Ottawa, Ontario, Canada K1A 0Y3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8939855" target="_blank"〉PubMed〈/a〉
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  • 9
    Publication Date: 1995-11-17
    Description: The Tat protein of bovine immunodeficiency virus (BIV) binds to its target RNA, TAR, and activates transcription. A 14-amino acid arginine-rich peptide corresponding to the RNA-binding domain of BIV Tat binds specifically to BIV TAR, and biochemical and in vivo experiments have identified the amino acids and nucleotides required for binding. The solution structure of the RNA-peptide complex has now been determined by nuclear magnetic resonance spectroscopy. TAR forms a virtually continuous A-form helix with two unstacked bulged nucleotides. The peptide adopts a beta-turn conformation and sits in the major groove of the RNA. Specific contacts are apparent between critical amino acids in the peptide and bases and phosphates in the RNA. The structure is consistent with all biochemical data and demonstrates ways in which proteins can recognize the major groove of RNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Puglisi, J D -- Chen, L -- Blanchard, S -- Frankel, A D -- AI08591/AI/NIAID NIH HHS/ -- AI29135/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1995 Nov 17;270(5239):1200-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Biochemistry, University of California, Santa Cruz 95064, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7502045" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Composition ; Base Sequence ; Gene Products, tat/*chemistry/metabolism ; Hydrogen Bonding ; Immunodeficiency Virus, Bovine/*chemistry ; Magnetic Resonance Spectroscopy ; Models, Molecular ; Molecular Sequence Data ; Nucleic Acid Conformation ; Protein Conformation ; Protein Structure, Secondary ; RNA, Viral/*chemistry/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1995-01-06
    Description: The tumor suppressor protein p53 is a transcriptional regulator that enhances the expression of proteins that control cellular proliferation. The multisubunit transcription factor IID (TFIID) is thought to be a primary target for site-specific activators of transcription. Here, a direct interaction between the activation domain of p53 and two subunits of the TFIID complex, TAFII40 and TAFII60, is reported. A double point mutation in the activation domain of p53 impaired the ability of this domain to activate transcription and, simultaneously, its ability to interact with both TAFII40 and TAFII60. Furthermore, a partial TFIID complex containing Drosophila TATA binding protein (dTBP), human TAFII250, dTAFII60, and dTAFII40 supported activation by a Gal4-p53 fusion protein in vitro, whereas TBP or a subcomplex lacking TAFII40 and TAFII60 did not. Together, these results suggest that TAFII40 and TAFII60 are important targets for transmitting activation signals between p53 and the initiation complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thut, C J -- Chen, J L -- Klemm, R -- Tjian, R -- New York, N.Y. -- Science. 1995 Jan 6;267(5194):100-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of California, Berkeley 94720.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7809597" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; DNA-Binding Proteins/metabolism ; *Drosophila Proteins ; HeLa Cells ; Histone Acetyltransferases ; Humans ; Molecular Sequence Data ; Nuclear Proteins/metabolism ; Point Mutation ; Recombinant Fusion Proteins/metabolism ; *TATA-Binding Protein Associated Factors ; TATA-Box Binding Protein ; Trans-Activators/*metabolism ; *Transcription Factor TFIID ; Transcription Factors/*metabolism ; *Transcriptional Activation ; Tumor Suppressor Protein p53/genetics/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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