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  • *Oncogenes  (2)
  • Animals  (2)
  • Computational Chemistry and Molecular Modeling  (2)
  • 1985-1989  (6)
  • 1
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    erbB-2 is a potent oncogene when overexpressed in NIH/3T3 cells (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-07-10
    Description: A wide variety of human tumors contain an amplified or overexpressed erbB-2 gene, which encodes a growth factor receptor-like protein. When erbB-2 complementary DNA was expressed in NIH/3T3 cells under the control of the SV40 promoter, the gene lacked transforming activity despite expression of detectable levels of the erbB-2 protein. A further five- to tenfold increase in its expression under influence of the long terminal repeat of Moloney murine leukemia virus was associated with activation of erbB-2 as a potent oncogene. The high levels of the erbB-2 product associated with malignant transformation of NIH/3T3 cells were observed in human mammary tumor cells that overexpressed this gene. These findings demonstrate a new mechanism for acquisition of oncogenic properties by genes encoding growth factor receptor-like proteins and provide a functional basis for the role of their overexpression in the development of human malignancies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Di Fiore, P P -- Pierce, J H -- Kraus, M H -- Segatto, O -- King, C R -- Aaronson, S A -- New York, N.Y. -- Science. 1987 Jul 10;237(4811):178-82.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2885917" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast Neoplasms/genetics ; Cell Line ; *Cell Transformation, Neoplastic/genetics ; DNA/genetics ; Fibroblasts/*metabolism ; Gene Expression Regulation ; Genes, Viral ; Humans ; Mice ; Moloney murine leukemia virus/genetics ; Promoter Regions, Genetic ; Proto-Oncogene Proteins/biosynthesis/genetics/*physiology ; Rats ; Receptor, Epidermal Growth Factor ; Receptor, ErbB-2 ; Receptors, Cell Surface/genetics ; Recombinant Fusion Proteins/biosynthesis/genetics/physiology ; Simian virus 40/genetics ; Tumor Stem Cell Assay
    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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    Amplification of a novel v-erbB-related gene in a human mammary carcinoma (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-09-06
    Description: The cellular gene encoding the receptor for epidermal growth factor (EGF) has considerable homology to the oncogene of avian erythroblastosis virus. In a human mammary carcinoma, a DNA sequence was identified that is related to v-erbB but amplified in a manner that appeared to distinguish it from the gene for the EGF receptor. Molecular cloning of this DNA segment and nucleotide sequence analysis revealed the presence of two putative exons in a DNA segment whose predicted amino acid sequence was closely related to, but different from, the corresponding sequence of the erbB/EGF receptor. Moreover, this DNA segment identified a 5-kilobase transcript distinct from the transcripts of the EGF receptor gene. Thus, a new member of the tyrosine kinase proto-oncogene family has been identified on the basis of its amplification in a human mammary carcinoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉King, C R -- Kraus, M H -- Aaronson, S A -- New York, N.Y. -- Science. 1985 Sep 6;229(4717):974-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2992089" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Breast Neoplasms/*genetics ; Cell Line ; Cloning, Molecular ; DNA, Neoplasm/*genetics ; Female ; *Gene Amplification ; Gene Expression Regulation ; Humans ; *Oncogenes ; Protein Kinases/*genetics ; Protein-Tyrosine Kinases ; Receptor, Epidermal Growth Factor ; Receptors, Cell Surface/*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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  • 3
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    Selective loss of a family of gene transcripts in a hereditary murine cataract (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-01-04
    Description: The eye lens of the Fraser mouse contains a dominantly inherited cataract with reduced amounts of seven distinct but homologous gamma crystallins encoded by a family of gamma-crystallin genes. The results of experiments with cultured lenses, cell-free RNA translation, and Northern blot hybridization indicated a specific loss of the family of gamma-crystallin messenger RNA's in the Fraser mouse lens. Southern blot hybridization of genomic DNA's from normal and Fraser mice showed no differences in gamma-crystallin coding sequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Garber, A T -- Winkler, C -- Shinohara, T -- King, C R -- Inana, G -- Piatigorsky, J -- Gold, R J -- New York, N.Y. -- Science. 1985 Jan 4;227(4682):74-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3964960" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cataract/*genetics ; Crystallins/*genetics ; Genes ; Lens, Crystalline/metabolism ; Mice ; Mice, Mutant Strains ; Nucleic Acid Hybridization ; Protein Biosynthesis ; RNA, Messenger/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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  • 4
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    A novel human gene closely related to the abl proto-oncogene (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-19
    Description: A DNA sequence related to the abl proto-oncogene was identified in human placenta. Molecular cloning and nucleotide sequence analysis revealed two putative exons whose predicted amino acid sequence was most homologous to the corresponding sequences of c-abl and v-abl but was related to other tyrosine kinase genes as well. The new sequence was localized by in situ hybridization and somatic cell genetic analysis to human chromosome 1q24-25, which differs from the location of any previously identified tyrosine kinase gene. The detection of a novel 12-kb transcript by this gene in human normal and tumor cells establishes it as a new member of the tyrosine kinase family that is closely related to but distinct from c-abl.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kruh, G D -- King, C R -- Kraus, M H -- Popescu, N C -- Amsbaugh, S C -- McBride, W O -- Aaronson, S A -- New York, N.Y. -- Science. 1986 Dec 19;234(4783):1545-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3787260" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Chromosome Mapping ; Chromosomes, Human, Pair 1 ; Cloning, Molecular ; DNA/*genetics ; Exons ; Humans ; Nucleic Acid Hybridization ; *Oncogenes ; Placenta/analysis ; Protein-Tyrosine Kinases/*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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  • 5
    Electronic Resource
    Electronic Resource
    Graph theory in the study of metal cluster bonding topology: Applications to metal clusters having fused polyhedra (1986)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 30 (1986), S. 227-238 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The energy levels in a delocalized two- or three-dimensional chemical structure are related to the eigenvalues of the graph representing the corresponding bonding topology. Such relatively crude but computationally undemanding graph theory-derived models provide a clear demonstration of the close relationship between two-dimensional aromatic systems such as benzene and three-dimensional aromatic systems such as deltahedral boranes, carboranes, and metal clusters. The basic building blocks for the three-dimensional aromatic systems are deltahedra, having no degree 3 vertices. Delocalized bonding in such systems having v vertices requires two electrons for a multicenter core bond as well as 2v electrons for pairwise surface bonding. A problem of particular interest is how metal cluster polyhedra can fuse together, leading ultimately to the infinite structures of the bulk metals. As a model for such processes the fusion of rhodium carbonyl octahedra is examined using graph theory-derived methods. These lead to reasonable electron-precise models for the bonding topologies in the “biphenyl analogue” [Rh12(CO)30]2-, the “naphthalene analogue” [Rh9(CO)19]3-, the “anthracene analogue” H2Rh12(CO)25, and the “perinaphthene analogue” [Rh11(CO)23]3-. Similar models can also be developed for clusters based on centered larger rhodium polyhedra as exemplified by the centered cuboctahedral clusters of the type [Rh13(CO)24H5-q]q- (q = 2, 3, 4) representing a fragment of the hexagonal close-packed metal structure.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560300722
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  • 6
    Electronic Resource
    Electronic Resource
    Chemical applications of topology and group theory. 23. A comparison of graph-theoretical and extended Hückel methods for study of bonding in octahedral and icosahedral boranesPaper presented at the CIC Symposium on Computational and Mathematical Chemistry, Saskatoon, Saskatchewan, Canada, June 1-4, 1986. (1987)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Computational Chemistry 8 (1987), S. 341-349 
    Details
    ISSN: 0192-8651
    Keywords: Computational Chemistry and Molecular Modeling ; Biochemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Computer Science
    Notes: The graph-theory derived model for the bonding topology in the globally delocalized polyhedral boranes B6H62- and B12H122- is evaluated by comparison of the energies of the core molecular orbitals with those obtained by the 1962 LCAO-MO extended Hückel calculations of Hoffmann and Lipscomb. Of particular interest is how well the complete graphs K6 and K12 used in the graph-theory derived model approximate the bonding topologies of the unique internal orbitals (radial orbitals) of the octahedron and icosahedron, respectively. In the case of the B6H62- octahedron the single positive eigenvalue of the K6 graph corresponds to the results from the extended Hückel calculations. In addition, the parameters from the latter calculations indicate a ratio of 0.625 for the overlap of the unique internal orbitals of the trans atom pairs relative to cis atom pairs as compared with unity implied by an unweighted K6 graph. In the case of the B12H122- icosahedron the graph-theory derived model is far less satisfactory since the single positive eigenvalue of the K12 graph disagrees with the four bonding core molecular orbitals (an A1g and three triply degenerate T1u molecular orbitals) found by the extended Hückel calculations after removing the effect of the mixing of core and surface bonding orbitals corresponding to the same irreducible representations. However, this core-surface orbital mixing raises the energy of the triply degenerate T1u core molecular orbitals to antibonding levels so that the graph-theory derived model fortuitiously gives correct skeletal electron counts for the regular icosahedron despite this fundamental error.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcc.540080410
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