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  • Nucleic Acid Hybridization  (76)
  • ASTROPHYSICS
  • Chemistry
  • SPACE VEHICLES
  • STRUCTURAL MECHANICS
  • American Association for the Advancement of Science (AAAS)  (85)
  • 1985-1989  (85)
  • 1970-1974
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (85)
  • Wiley-Blackwell  (4,252)
Years
Year
  • 1
    Publication Date: 1989-07-28
    Description: Amyloid deposition in senile plaques and the cerebral vasculature is a marker of Alzheimer's disease. Whether amyloid itself contributes to the neurodegenerative process or is simply a by-product of that process is unknown. Pheochromocytoma (PC12) and fibroblast (NIH 3T3) cell lines were transfected with portions of the gene for the human amyloid precursor protein. Stable PC12 cell transfectants expressing a specific amyloid-containing fragment of the precursor protein gradually degenerated when induced to differentiate into neuronal cells with nerve growth factor. Conditioned medium from these cells was toxic to neurons in primary hippocampal cultures, and the toxic agent could be removed by immunoabsorption with an antibody directed against the amyloid polypeptide. Thus, a peptide derived from the amyloid precursor may be neurotoxic.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yankner, B A -- Dawes, L R -- Fisher, S -- Villa-Komaroff, L -- Oster-Granite, M L -- Neve, R L -- HD 18655/HD/NICHD NIH HHS/ -- HD 18658/HD/NICHD NIH HHS/ -- NS 01240/NS/NINDS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1989 Jul 28;245(4916):417-20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Harvard Medical School, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2474201" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*etiology/pathology ; Amyloid/genetics/*physiology ; Blotting, Northern ; Cell Line ; Fibroblasts ; Gene Expression Regulation ; Humans ; Immunoblotting ; Neurons/pathology ; Nucleic Acid Hybridization ; Pheochromocytoma ; Protein Precursors/genetics/*physiology ; RNA/analysis/genetics ; Restriction Mapping ; 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
    Publication Date: 1987-08-14
    Description: On the basis of electrophysiological analysis of Shaker mutants, the Shaker locus of Drosophila melanogaster has been proposed to encode a structural component of a voltage-dependent potassium channel, the A channel. Unlike sodium channels, acetylcholine receptors, and calcium channels, K+ channels have not been purified biochemically. To facilitate biochemical studies of a K+ channel, genomic DNA from the Shaker locus has been cloned. Rearrangements in five Shaker mutants have been mapped to a 60-kilobase segment of the genome. Four complementary DNA clones have been analyzed. These clones indicate that the Shaker gene contains multiple exons distributed over at least 65 kilobases of genomic DNA in the region where the mutations mapped. Furthermore, the gene may produce several classes of alternatively spliced transcripts. Two of the complementary DNA clones have been sequenced and their sequences support the hypothesis that Shaker encodes a component of a K+ channel.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Papazian, D M -- Schwarz, T L -- Tempel, B L -- Jan, Y N -- Jan, L Y -- NS15963/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1987 Aug 14;237(4816):749-53.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2441470" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cloning, Molecular ; DNA/*genetics/isolation & purification ; Drosophila melanogaster/*genetics ; Exons ; *Ion Channels ; Membrane Proteins/*genetics ; Mutation ; Nucleic Acid Hybridization ; Potassium/*metabolism ; RNA Splicing ; Transcription, Genetic ; Translocation, Genetic
    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: 1986-08-22
    Description: A new family of protein kinase C-related genes has been identified in bovine, human, and rat genomes. The alpha-, beta-, and gamma-type protein kinase sequences are highly homologous, include a kinase domain, and potential calcium-binding sites, and they contain interspersed variable regions. The corresponding genes are located on distinct human chromosomes; the possibility of even greater genetic complexity of this gene family is suggested by Northern and Southern hybridization analyses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Coussens, L -- Parker, P J -- Rhee, L -- Yang-Feng, T L -- Chen, E -- Waterfield, M D -- Francke, U -- Ullrich, A -- New York, N.Y. -- Science. 1986 Aug 22;233(4766):859-66.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3755548" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cattle ; Chromosome Mapping ; Chromosomes, Human, 16-18 ; Dna ; Genes ; Humans ; Nucleic Acid Hybridization ; Protein Kinase C/*genetics ; Rats
    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
    Publication Date: 1988-08-26
    Description: In situ hybridization was used to assess total amyloid protein precursor (APP) messenger RNA and the subset of APP mRNA containing the Kunitz protease inhibitor (KPI) insert in 11 Alzheimer's disease (AD) and 7 control brains. In AD, a significant twofold increase was observed in total APP mRNA in nucleus basalis and locus ceruleus neurons but not in hippocampal subicular neurons, neurons of the basis pontis, or occipital cortical neurons. The increase in total APP mRNA in locus ceruleus and nucleus basalis neurons was due exclusively to an increase in APP mRNA lacking the KPI domain. These findings suggest that increased production of APP lacking the KPI domain in nucleus basalis and locus ceruleus neurons may play an important role in the deposition of cerebral amyloid that occurs in AD.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palmert, M R -- Golde, T E -- Cohen, M L -- Kovacs, D M -- Tanzi, R E -- Gusella, J F -- Usiak, M F -- Younkin, L H -- Younkin, S G -- 5T32GM07250/GM/NIGMS NIH HHS/ -- AG06656/AG/NIA NIH HHS/ -- MH43444/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1988 Aug 26;241(4869):1080-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neuropathology, Case Western Reserve University, School of Medicine, Cleveland, OH 44106.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2457949" target="_blank"〉PubMed〈/a〉
    Keywords: Alzheimer Disease/*genetics ; Amyloid/*genetics ; Bacteriophage lambda/genetics ; Brain/metabolism ; Cerebral Cortex/metabolism ; *Gene Expression Regulation ; Humans ; Locus Coeruleus/metabolism ; Neurons/metabolism ; Nucleic Acid Hybridization ; Operator Regions, Genetic ; Plasmids ; Protein Precursors/*genetics ; RNA/genetics ; RNA, Complementary ; RNA, Messenger/*genetics/metabolism ; Repressor Proteins/metabolism ; Transcription, Genetic ; Trypsin Inhibitors/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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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1988-12-09
    Description: Cell types associated with angiotensinogen mRNA in rat brain were identified in individual brain sections by in situ hybridization with tritiated RNA probes or with a sulfur-35--labeled oligonucleotide combined with immunocytochemical detection of either glial fibrillary acidic protein (GFAP) for astrocytes or microtubule-associated protein (MAP-2) for neurons. Autoradiography revealed silver grains clustered primarily over GFAP-reactive soma and processes; most grain clusters were not associated with MAP-2--reactive cells. These results demonstrate that, in contrast to other known neuropeptide precursors, angiotensinogen is synthesized by glia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stornetta, R L -- Hawelu-Johnson, C L -- Guyenet, P G -- Lynch, K R -- R01 HL33513/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1988 Dec 9;242(4884):1444-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Virginia School of Medicine, Charlottesville 22908.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201232" target="_blank"〉PubMed〈/a〉
    Keywords: Angiotensinogen/*biosynthesis/genetics ; Animals ; Astrocytes/*metabolism ; Brain/*metabolism ; Glial Fibrillary Acidic Protein/analysis ; Histocytochemistry ; Microtubule-Associated Proteins/analysis ; Nucleic Acid Hybridization ; RNA, Messenger/analysis/genetics ; Rats
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 1988-05-06
    Description: Acute promyelocytic leukemia (subtype M3) is characterized by malignant promyelocytes exhibiting an abundance of abnormally large or aberrant primary granules. Myeloperoxidase (MPO) activity of these azurophilic granules, as assessed by cytochemical staining, is unusually intense. In addition, M3 is universally associated with a chromosomal translocation, t(15;17)(q22;q11.2). In this report, the MPO gene was localized to human chromosome 17 (q12-q21), the region of the breakpoint on chromosome 17 in the t(15;17), by somatic cell hybrid analysis and in situ chromosomal hybridization. By means of MPO complementary DNA clones for in situ hybridization and Southern blot analysis, the effect of this specific translocation on the MPO gene was examined. In all cases of M3 examined, MPO is translocated to chromosome 15. Genomic blot analyses indicate rearrangement of MPO in leukemia cells of two of four cases examined. These findings suggest that MPO may be pivotal in the pathogenesis of acute promyelocytic leukemia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weil, S C -- Rosner, G L -- Reid, M S -- Chisholm, R L -- Lemons, R S -- Swanson, M S -- Carrino, J J -- Diaz, M O -- Le Beau, M M -- 1R01 CA44475/CA/NCI NIH HHS/ -- CA09273/CA/NCI NIH HHS/ -- CA16910/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 May 6;240(4853):790-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Northwestern University Medical Center, Chicago, IL 60611.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2896388" target="_blank"〉PubMed〈/a〉
    Keywords: Bone Marrow/analysis ; Chromosome Mapping ; Chromosomes, Human, Pair 15 ; Chromosomes, Human, Pair 17 ; DNA/genetics ; DNA Restriction Enzymes ; DNA, Recombinant ; Humans ; Leukemia, Myeloid, Acute/*enzymology/genetics ; Nucleic Acid Hybridization ; Peroxidase/*genetics ; Plasmids ; Polymorphism, Restriction Fragment Length ; *Translocation, Genetic
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  • 7
    Publication Date: 1989-09-08
    Description: An understanding of the basic defect in the inherited disorder cystic fibrosis requires cloning of the cystic fibrosis gene and definition of its protein product. In the absence of direct functional information, chromosomal map position is a guide for locating the gene. Chromosome walking and jumping and complementary DNA hybridization were used to isolate DNA sequences, encompassing more than 500,000 base pairs, from the cystic fibrosis region on the long arm of human chromosome 7. Several transcribed sequences and conserved segments were identified in this cloned region. One of these corresponds to the cystic fibrosis gene and spans approximately 250,000 base pairs of genomic DNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rommens, J M -- Iannuzzi, M C -- Kerem, B -- Drumm, M L -- Melmer, G -- Dean, M -- Rozmahel, R -- Cole, J L -- Kennedy, D -- Hidaka, N -- DK34944/DK/NIDDK NIH HHS/ -- DK39690/DK/NIDDK NIH HHS/ -- N01-CO-74102/CO/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 Sep 8;245(4922):1059-65.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Hospital for Sick Children, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2772657" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cattle ; Chickens ; *Chromosome Mapping ; *Chromosomes, Human, Pair 7 ; Cloning, Molecular/methods ; Cricetinae ; Cystic Fibrosis/*genetics ; DNA Probes ; Genes, Overlapping ; *Genes, Recessive ; Genetic Markers ; Humans ; Mice ; Nucleic Acid Hybridization ; Restriction Mapping/methods
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 1989-05-05
    Description: Cells of the mouse cell line 3T3-F442A can be induced by various hormones to differentiate into adipocytes, whereas cells of 3T3-C2, a subclone of 3T3, cannot. However, transfection of DNA from uninduced 3T3-F422A cells into 3T3-C2 cells permits recovery of 3T3-C2 transfectants that differentiate into adipocytes in the presence of insulin. DNA isolated from human fat tissue, when transfected into 3T3-C2 mouse cells, also gives rise to mouse transfectants that are induced to differentiate into adipocytes by the addition of insulin. Apparently, transfection of a trans-regulatory gene (or genes) from 3T3-F442A or human fat cells into 3T3-C2 cells is sufficient to commit 3T3-C2 cells to adipocyte differentiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, S -- Teicher, L C -- Kazim, D -- Pollack, R E -- Wise, L S -- New York, N.Y. -- Science. 1989 May 5;244(4904):582-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Columbia University, New York, NY 10027.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2470149" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-3-isobutylxanthine/pharmacology ; Adipose Tissue/*cytology ; Animals ; Cell Differentiation/drug effects ; Cell Line ; DNA/*genetics ; DNA Probes ; DNA Restriction Enzymes ; Dexamethasone/pharmacology ; Fibroblasts/*cytology ; Glycerolphosphate Dehydrogenase/metabolism ; Humans ; Insulin/pharmacology ; Mice ; Molecular Weight ; Nucleic Acid Hybridization ; RNA, Messenger/analysis ; *Transfection
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  • 9
    Publication Date: 1989-03-03
    Description: Gap junctions in the early amphibian embryo may play a fundamental role in the regulation of differentiation by mediating the cell-to-cell transfer of chemical signals. A complementary DNA encoding a gap junction present in Xenopus oocytes and early embryos has now been cloned and sequenced. This protein sequence is homologous to the well-characterized gap junction structural proteins rat connexin32 and connexin43. RNA blot analysis of total Xenopus oocyte RNA showed hybridization to a single 1.6-kilobase band. This messenger RNA is abundant in oocytes, decreases to levels below the sensitivity of our assay by stage 15 (18 hours), and is not detectable in RNA from a number of adult organs. To confirm that the oocyte cDNA encodes a gap junction channel, the protein was over expressed in Xenopus oocytes by injection of RNA synthesized in vitro. Pairs of RNA-injected oocytes formed many more time- and voltage-sensitive cell-cell channels than water-injected pairs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ebihara, L -- Beyer, E C -- Swenson, K I -- Paul, D L -- Goodenough, D A -- GM18974/GM/NIGMS NIH HHS/ -- GM37751/GM/NIGMS NIH HHS/ -- HL28958-06/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1989 Mar 3;243(4895):1194-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Columbia University, New York, NY 10032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2466337" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cell Communication ; *Cloning, Molecular ; Connexins ; DNA Probes ; Electric Conductivity ; Female ; Gene Expression Regulation ; Intercellular Junctions/physiology ; Membrane Proteins/*genetics/physiology ; Molecular Sequence Data ; Nucleic Acid Hybridization ; Oocytes/analysis/physiology ; RNA/analysis ; RNA, Messenger/analysis ; Rats ; Tissue Distribution ; Xenopus/*embryology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 1989-04-21
    Description: A random-primed complementary DNA library was constructed from plasma containing the uncharacterized non-A, non-B hepatitis (NANBH) agent and screened with serum from a patient diagnosed with NANBH. A complementary DNA clone was isolated that was shown to encode an antigen associated specifically with NANBH infections. This clone is not derived from host DNA but from an RNA molecule present in NANBH infections that consists of at least 10,000 nucleotides and that is positive-stranded with respect to the encoded NANBH antigen. These data indicate that this clone is derived from the genome of the NANBH agent and are consistent with the agent being similar to the togaviridae or flaviviridae. This molecular approach should be of great value in the isolation and characterization of other unidentified infectious agents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Choo, Q L -- Kuo, G -- Weiner, A J -- Overby, L R -- Bradley, D W -- Houghton, M -- New York, N.Y. -- Science. 1989 Apr 21;244(4902):359-62.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Chiron Corporation, Emeryville, CA 94608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2523562" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Viral/*genetics ; Bacteriophage lambda/genetics ; DNA/*genetics/isolation & purification ; Hepatitis Antibodies/analysis ; Hepatitis C/*immunology/microbiology ; Hepatitis Viruses/*genetics/immunology ; Hepatitis, Viral, Human/*immunology ; Immunoblotting ; Nucleic Acid Hybridization ; Pan troglodytes ; Protein Biosynthesis ; RNA, Viral/blood/*genetics
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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