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  • Amino Acid Sequence  (771)
  • American Association for the Advancement of Science (AAAS)  (771)
  • Blackwell Publishing Ltd
  • 1990-1994  (771)
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (771)
  • Blackwell Publishing Ltd
Years
Year
  • 1
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    Maspin, a serpin with tumor-suppressing activity in human mammary epithelial cells (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-01-28
    Description: A gene encoding a protein related to the serpin family of protease inhibitors was identified as a candidate tumor suppressor gene that may play a role in human breast cancer. The gene product, called maspin, is expressed in normal mammary epithelial cells but not in most mammary carcinoma cell lines. Transfection of MDA-MB-435 mammary carcinoma cells with the maspin gene did not alter the cells' growth properties in vitro, but reduced the cells' ability to induce tumors and metastasize in nude mice and to invade through a basement membrane matrix in vitro. Analysis of human breast cancer specimens revealed that loss of maspin expression occurred most frequently in advanced cancers. These results support the hypothesis that maspin functions as a tumor suppressor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zou, Z -- Anisowicz, A -- Hendrix, M J -- Thor, A -- Neveu, M -- Sheng, S -- Rafidi, K -- Seftor, E -- Sager, R -- CA39814/CA/NCI NIH HHS/ -- P01 CA22427/CA/NCI NIH HHS/ -- R01 CA59702/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1994 Jan 28;263(5146):526-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cancer Genetics, Dana-Farber Cancer Institute, Boston, MA 02115.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8290962" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Breast/*chemistry ; Breast Neoplasms/*chemistry/pathology ; Down-Regulation ; Epithelium/chemistry ; Female ; Gene Expression ; Genes, Tumor Suppressor ; Humans ; Mice ; Mice, Nude ; Molecular Sequence Data ; Neoplasm Metastasis ; Neoplasm Transplantation ; Neoplasms, Experimental/pathology ; Proteins/analysis/genetics/*physiology ; Sequence Analysis ; Serpins/analysis/genetics/*physiology ; Transfection ; Tumor Cells, Cultured
    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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  • 2
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    Stat3: a STAT family member activated by tyrosine phosphorylation in response to epidermal growth factor and interleukin-6 (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-04-01
    Description: The STAT family of proteins carries out a dual function: signal transduction and activation of transcription. A new family member, Stat3, becomes activated through phosphorylation on tyrosine as a DNA binding protein in response to epidermal growth factor (EGF) and interleukin-6 (IL-6) but not interferon gamma (IFN-gamma). It is likely that this phosphoprotein forms homodimers as well as heterodimers with the first described member of the STAT family, Stat91 (renamed Stat1 alpha), which is activated by the IFNs and EGF. Differential activation of different STAT proteins in response to different ligands should help to explain specificity in nuclear signaling from the cell surface.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhong, Z -- Wen, Z -- Darnell, J E Jr -- AI32489/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1994 Apr 1;264(5155):95-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Cell Biology, Rockefeller University, New York, NY 10021.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8140422" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; DNA/metabolism ; DNA-Binding Proteins/chemistry/genetics/isolation & purification/*metabolism ; Epidermal Growth Factor/*pharmacology ; Humans ; Interferon-gamma ; Interleukin-6/*pharmacology ; Mice ; Molecular Sequence Data ; Phosphorylation ; Regulatory Sequences, Nucleic Acid ; STAT1 Transcription Factor ; STAT3 Transcription Factor ; Sequence Alignment ; Trans-Activators/metabolism ; Transfection ; Tumor Cells, Cultured ; Tyrosine/metabolism
    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
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    Photoactivated conformational changes in rhodopsin: a time-resolved spin label study (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-11-26
    Description: Rhodopsin has been selectively spin-labeled near the cytoplasmic termini of helices C and G. Photoactivation with a light flash induces an electron paramagnetic resonance spectral change in the millisecond time domain, coincident with the appearance of the active metarhodopsin II intermediate. The spectral change is consistent with a small movement near the cytoplasmic termination of the C helix and reverses upon formation of the MIII state. These results provide an important link between the optical changes associated with the retinal chromophore and protein conformational states.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Farahbakhsh, Z T -- Hideg, K -- Hubbell, W L -- EY05216/EY/NEI NIH HHS/ -- EY07026/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1993 Nov 26;262(5138):1416-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Jules Stein Eye Institute, Los Angeles, CA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8248781" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Electron Spin Resonance Spectroscopy ; Light ; Molecular Sequence Data ; Protein Conformation ; Protein Structure, Secondary ; Rhodopsin/*chemistry ; Spin Labels ; Temperature
    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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  • 4
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    Harpin, elicitor of the hypersensitive response produced by the plant pathogen Erwinia amylovora (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-07-03
    Description: A proteinaceous elicitor of the plant defense reaction known as the hypersensitive response was isolated from Erwinia amylovora, the bacterium that causes fire blight of pear, apple, and other rosaceous plants. The elicitor, named harpin, is an acidic, heat-stable, cell-envelope-associated protein with an apparent molecular weight of 44 kilodaltons. Harpin caused tobacco leaf lamina to collapse and caused an increase in the pH of bathing solutions of suspension-cultured tobacco cells. The gene encoding harpin (hrpN) was located in the 40-kilobase hrp gene cluster of E. amylovora, sequenced, and mutated with Tn5tac1. The hrpN mutants were not pathogenic to pear, did not elicit the hypersensitive response, and did not produce harpin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wei, Z M -- Laby, R J -- Zumoff, C H -- Bauer, D W -- He, S Y -- Collmer, A -- Beer, S V -- New York, N.Y. -- Science. 1992 Jul 3;257(5066):85-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Plant Pathology, Cornell University, Ithaca, NY 14853.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1621099" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *Bacterial Outer Membrane Proteins ; Bacterial Proteins/*genetics/isolation & purification/metabolism ; Cells, Cultured ; Erwinia/genetics/pathogenicity/*physiology ; Escherichia coli/genetics ; *Genes, Bacterial ; Membrane Proteins/*genetics/isolation & purification/metabolism ; Molecular Sequence Data ; *Multigene Family ; Plants, Toxic ; Restriction Mapping ; Tobacco/microbiology
    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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    An osmosensing signal transduction pathway in mammalian cells (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-08-05
    Description: The osmotic balance between the cytoplasmic and extracellular compartments of cells is critical for the control of cell volume. A mammalian protein kinase, Jnk, which is a distant relative of the mitogen-activated protein kinase group, was activated by phosphorylation on threonine and tyrosine in osmotically shocked cells. The activation of Jnk may be relevant to the biological response to osmotic shock because the expression of human Jnk in the yeast Saccharomyces cerevisiae rescued a defect in growth on hyper-osmolar media. These data indicate that related protein kinases may mediate osmosensing signal transduction in yeast and mammalian cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Galcheva-Gargova, Z -- Derijard, B -- Wu, I H -- Davis, R J -- New York, N.Y. -- Science. 1994 Aug 5;265(5173):806-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, University of Massachusetts Medical School, Worcester 01605.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8047888" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; CHO Cells ; Calcium-Calmodulin-Dependent Protein Kinases/genetics ; Cricetinae ; Cricetulus ; Enzyme Activation ; Genetic Complementation Test ; JNK Mitogen-Activated Protein Kinases ; *Mitogen-Activated Protein Kinases ; Molecular Sequence Data ; Osmotic Pressure ; Protein-Serine-Threonine Kinases/*physiology ; Saccharomyces cerevisiae/genetics ; *Saccharomyces cerevisiae Proteins ; Sequence Homology, Amino Acid ; Signal Transduction/*physiology ; Water-Electrolyte Balance/*physiology
    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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    Active oxygen species in the induction of plant systemic acquired resistance by salicylic acid (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-12-17
    Description: A complementary DNA encoding a salicylic acid (SA)-binding protein has been cloned. Its properties suggest involvement in SA-mediated induction of systemic acquired resistance (SAR) in plants. The sequence of the protein is similar to that of catalases and the protein exhibits catalase activity. Salicylic acid specifically inhibited the catalase activity in vitro and induced an increase in H2O2 concentrations in vivo. H2O2 or compounds, such as SA, that inhibit catalases or enhance the generation of H2O2, induced expression of defense-related genes associated with SAR. Thus, the action of SA in SAR is likely mediated by elevated amounts of H2O2.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Z -- Silva, H -- Klessig, D F -- New York, N.Y. -- Science. 1993 Dec 17;262(5141):1883-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Waksman Institute, Rutgers, State University of New Jersey, Piscataway 08855.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8266079" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Carrier Proteins/chemistry/genetics/*metabolism ; Catalase/antagonists & inhibitors/*metabolism ; Genes, Plant ; Hydrogen Peroxide/*metabolism ; Hydroxybenzoates/pharmacology ; Molecular Sequence Data ; Oxidation-Reduction ; *Plant Diseases ; *Plant Proteins ; *Plants, Toxic ; Salicylates/metabolism/*pharmacology ; Salicylic Acid ; Tobacco/genetics/*metabolism
    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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  • 7
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    Crystal structure of the repetitive segments of spectrin (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-12-24
    Description: The elongated proteins of the spectrin family (dystrophin, alpha-actinin, and spectrin) contain tandemly repeated segments and form resilient cellular meshworks by cross-linking actin filaments. The structure of one of the repetitive segments of alpha-spectrin was determined at a 1.8 angstrom resolution. A segment consists of a three-helix bundle. A model of the interface between two tandem segments suggests that hydrophobic interactions between segments may constrain intersegment flexibility. The helix side chain interactions explain how mutations that are known to produce hemolytic anemias disrupt spectrin associations that sustain the integrity of the erythrocyte membrane.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yan, Y -- Winograd, E -- Viel, A -- Cronin, T -- Harrison, S C -- Branton, D -- CA 13202/CA/NCI NIH HHS/ -- HL 17411/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1993 Dec 24;262(5142):2027-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Harvard University, Cambridge, MA 02138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8266097" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Crystallization ; Drosophila ; Models, Molecular ; Molecular Sequence Data ; Protein Conformation ; Spectrin/*chemistry
    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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  • 8
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    Betacellulin: a mitogen from pancreatic beta cell tumors (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-03-12
    Description: Betacellulin, a member of the epidermal growth factor family, has been identified in the conditioned medium of cell lines derived from mouse pancreatic beta cell tumors. Betacellulin is a 32-kilodalton glycoprotein that appears to be processed from a larger transmembrane precursor by proteolytic cleavage. The carboxyl-terminal domain of betacellulin has 50 percent sequence similarity with that of rat transforming growth factor alpha. Betacellulin is a potent mitogen for retinal pigment epithelial cells and vascular smooth muscle cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shing, Y -- Christofori, G -- Hanahan, D -- Ono, Y -- Sasada, R -- Igarashi, K -- Folkman, J -- CA 70118/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1993 Mar 12;259(5101):1604-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Surgery, Children's Hospital, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8456283" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Amino Acid Sequence ; Animals ; Base Sequence ; Betacellulin ; Cell Division/drug effects ; Cells, Cultured ; DNA Replication/drug effects ; Endothelium, Vascular/cytology/drug effects ; Epidermal Growth Factor/pharmacology ; Growth Substances/*genetics/isolation & purification/pharmacology ; Humans ; *Intercellular Signaling Peptides and Proteins ; Islets of Langerhans/physiopathology ; Kinetics ; Mice ; Molecular Sequence Data ; Muscle, Smooth, Vascular/cytology/drug effects ; Oligodeoxyribonucleotides ; Pancreatic Neoplasms/*physiopathology ; Pigment Epithelium of Eye/cytology/drug effects ; Polymerase Chain Reaction/methods ; Protein Precursors/genetics ; Rats ; Receptor, Epidermal Growth Factor/metabolism ; Recombinant Proteins/pharmacology ; Sequence Homology, Amino Acid ; Thymidine/metabolism ; Transforming Growth Factor alpha/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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  • 9
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    Cloning and expression of a developmentally regulated protein that induces mitogenic and neurite outgrowth activity (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-12-21
    Description: A heparin binding mitogenic protein isolated from bovine uterus shares NH2-terminal amino acid sequence with a protein isolated from newborn rat brain. The cDNA's of the bovine, human, and rat genes have been isolated and encode extraordinarily conserved proteins unrelated to known growth or neurotrophic factors, although identity of nearly 50 percent has been found with the predicted sequence of a retinoic acid induced transcript in differentiating mouse embryonal carcinoma cells. Lysates of COS-7 cells transiently expressing this protein were mitogenic for NRK cells and initiated neurite outgrowth from mixed cultures of embryonic rat brain cells. RNA transcripts encoding this protein were widely distributed in tissues and were developmentally regulated. This protein, previously designated as heparin binding growth factor (HBGF)-8, is now renamed pleiotrophin (PTN) to reflect its diverse activities. PTN may be the first member of a family of developmentally regulated cytokines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Y S -- Milner, P G -- Chauhan, A K -- Watson, M A -- Hoffman, R M -- Kodner, C M -- Milbrandt, J -- Deuel, T F -- CA49712/CA/NCI NIH HHS/ -- HL14147/HL/NHLBI NIH HHS/ -- HL31102/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1990 Dec 21;250(4988):1690-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Jewish Hospital, Washington University Medical Center, St. Louis, MO 63110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2270483" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Axons/*physiology/ultrastructure ; Base Sequence ; Brain/*metabolism ; *Carrier Proteins ; Cattle ; Cell Division ; Cell Line ; Cloning, Molecular ; Cytokines/*genetics ; Humans ; Mitogens/*genetics ; Molecular Sequence Data ; Organ Specificity ; Rats ; Sequence Homology, Nucleic Acid ; Transfection
    Print ISSN: 0036-8075
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  • 10
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    Generation of a mouse strain that produces immunoglobulin kappa chains with human constant regions (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-11-19
    Description: Humanized antibodies are highly efficient as immunotherapeutic reagents and have many advantages over rodent antibodies. A mouse strain was generated by gene targeting to replace the mouse kappa light chain constant (C) region gene with the human C kappa gene. Mice homozygous for the replacement mutation (C kappa R) produced normal concentrations of serum antibodies, most of which carry chimeric kappa light chains, and mounted normal immune responses to hapten-protein conjugates. This technology provides a feasible option for the generation of high-affinity humanized antibodies by means of the powerful somatic hypermutation-selection mechanism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zou, Y R -- Gu, H -- Rajewsky, K -- New York, N.Y. -- Science. 1993 Nov 19;262(5137):1271-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Genetics, University of Cologne, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8235658" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; B-Lymphocytes/*immunology ; Base Sequence ; Gene Rearrangement ; *Genes, Immunoglobulin ; Humans ; Immunoglobulin Constant Regions/*biosynthesis/genetics ; Immunoglobulin Isotypes/biosynthesis ; Immunoglobulin kappa-Chains/*biosynthesis/genetics ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Mutation ; Polymerase Chain Reaction ; Recombinant Fusion Proteins/biosynthesis ; Stem Cells ; Transfection
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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