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  • Cloning, Molecular  (19)
  • American Association for the Advancement of Science (AAAS)  (19)
  • American Geophysical Union
  • Blackwell Publishing Ltd
  • 2020-2023
  • 1985-1989  (19)
  • 1980-1984
  • 1970-1974
  • 1988  (19)
Sammlung
Schlagwörter
Verlag/Herausgeber
  • American Association for the Advancement of Science (AAAS)  (19)
  • American Geophysical Union
  • Blackwell Publishing Ltd
Erscheinungszeitraum
  • 2020-2023
  • 1985-1989  (19)
  • 1980-1984
  • 1970-1974
Jahr
  • 1
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    Type-restricted neutralization of molecular clones of human immunodeficiency virus (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-07-15
    Beschreibung: In a study of the immunologic significance of the genetic diversity present within single isolates of human immunodeficiency virus type 1 (HIV-1), the neutralization of viruses derived from molecular clones of the HIV-1 strain HTLV-IIIB by an extensive panel of sera was compared. Sera from HIV-1-infected patients and from goats immunized with polyacrylamide gel-purified HIV-1 envelope glycoprotein (gp120), native gp120, or gp120-derived recombinant peptides, showed marked heterogeneity in neutralizing activity against these closely related viruses. The change of a single amino acid residue in gp120 may account for such "clonal restriction" of neutralizing activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Looney, D J -- Fisher, A G -- Putney, S D -- Rusche, J R -- Redfield, R R -- Burke, D S -- Gallo, R C -- Wong-Staal, F -- New York, N.Y. -- Science. 1988 Jul 15;241(4863):357-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Viral Diseases, Walter Reed Army Institute of Research, Washington, DC 20307.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3388046" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Antibodies, Viral/*immunology ; Binding, Competitive ; Cloning, Molecular ; HIV/genetics/*immunology ; HIV Seropositivity/immunology ; Humans ; Molecular Sequence Data ; Neutralization Tests ; Oligopeptides/chemical synthesis/immunology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    A "selfish" B chromosome that enhances its transmission by eliminating the paternal genome (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-04-22
    Beschreibung: In the parasitic wasp, Nasonia vitripennis, males are haploid and usually develop from unfertilized eggs, whereas females are diploid and develop from fertilized eggs. Some individuals in this species carry a genetic element, termed psr (paternal sex ratio), which is transmitted through sperm and causes condensation and subsequent loss of paternal chromosomes in fertilized eggs, thus converting diploid females into haploid males. In this report the psr trait was shown to be caused by a supernumerary chromosome. This B chromosome contains at least three repetitive DNA sequences that do not cross-hybridize to each other or to the host genome. The psr chromosome apparently produces a trans-acting product responsible for condensation of the paternal chromosomes, but is itself insensitive to the effect. Because the psr chromosome enhances its transmission by eliminating the rest of the genome, it can be considered the most "selfish" genetic element yet described.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nur, U -- Werren, J H -- Eickbush, D G -- Burke, W D -- Eickbush, T H -- GM31867/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Apr 22;240(4851):512-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, University of Rochester, NY 14627.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3358129" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Base Sequence ; Chromosomes/*physiology ; Cloning, Molecular ; DNA, Satellite ; Diploidy ; Haploidy ; Hymenoptera/*genetics ; Molecular Sequence Data ; Repetitive Sequences, Nucleic Acid ; Sex Determination Analysis ; *Sex Ratio ; Wasps/*genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 3
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    Gene encoding the beta subunit of S100 protein is on chromosome 21: implications for Down syndrome (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-03-11
    Beschreibung: S100 protein is a calcium-binding protein found predominantly in the vertebrate nervous system. Genomic and complementary DNA probes were used in conjunction with a panel of rodent-human somatic cell hybrids to assign the gene for the beta subunit of S100 protein to the distal half of the long arm of human chromosome 21. This gene was identified as a candidate sequence which, when expressed in the trisomic state, may underlie the neurologic disturbances in Down syndrome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allore, R -- O'Hanlon, D -- Price, R -- Neilson, K -- Willard, H F -- Cox, D R -- Marks, A -- Dunn, R J -- 140-17001/PHS HHS/ -- New York, N.Y. -- Science. 1988 Mar 11;239(4845):1311-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Genetics, University of Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2964086" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Chromosome Mapping ; *Chromosomes, Human, Pair 21 ; Cloning, Molecular ; Down Syndrome/*genetics ; Humans ; Macromolecular Substances ; Nucleic Acid Hybridization ; S100 Proteins/*genetics
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 4
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    Transient expression shows ligand gating and allosteric potentiation of GABAA receptor subunits (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-12-02
    Beschreibung: Human gamma-aminobutyric acid A (GABAA) receptor subunits were expressed transiently in cultured mammalian cells. This expression system allows the simultaneous characterization of ligand-gated ion channels by electrophysiology and by pharmacology. Thus, coexpression of the alpha and beta subunits of the GABAA receptor generated GABA-gated chloride channels and binding sites for GABAA receptor ligands. Channels consisting of only alpha or beta subunits could also be detected. These homomeric channels formed with reduced efficiencies compared to the heteromeric receptors. Both of these homomeric GABA-responsive channels were potentiated by barbiturate, indicating that sites for both ligand-gating and allosteric potentiation are present on receptors assembled from either subunit.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pritchett, D B -- Sontheimer, H -- Gorman, C M -- Kettenmann, H -- Seeburg, P H -- Schofield, P R -- New York, N.Y. -- Science. 1988 Dec 2;242(4883):1306-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Neuroendocrinology, ZMBH, University of Heidelberg, Federal Republic of Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2848320" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Allosteric Regulation ; Blotting, Northern ; Cells, Cultured ; Chloride Channels ; Chlorides/*physiology ; Cloning, Molecular ; Electric Conductivity ; Humans ; Macromolecular Substances ; Membrane Proteins/*physiology ; Muscimol/metabolism ; Receptors, GABA-A/*physiology/ultrastructure ; Structure-Activity Relationship ; Transfection
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 5
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    Cloning of a lymphoid-specific cDNA encoding a protein binding the regulatory octamer DNA motif (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-07-29
    Beschreibung: An octamer DNA sequence plays a critical role in directing transcription of immunoglobulin genes in B lymphocytes. A new technique of direct binding of radioactive DNA was used to screen a complementary DNA expression library from the BJAB cell line in lambda gt11 phage to derive molecular cDNA clones representing a putative B lymphocyte-specific octamer binding protein. The plaques were screened with DNA containing four copies of the octamer sequence and positive phage recombinants were identified. The fusion protein produced on inducing a lysogen of one phage bound to a monomeric octamer probe. The cDNA insert from this phage hybridized to messenger RNA found in B lymphocytes, but not in most other cells. Thus, this cDNA derives from a gene (oct-2) that specifies an octamer binding protein expressed preferentially in B lymphocytes, proving that, for at least one gene, a cell-specific transcription factor exists and its amount is controlled through messenger RNA availability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Staudt, L M -- Clerc, R G -- Singh, H -- LeBowitz, J H -- Sharp, P A -- Baltimore, D -- P01-CA42063/CA/NCI NIH HHS/ -- P30-CAL4051/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):577-80.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, Cambridge, MA 02142.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3399892" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cloning, Molecular ; DNA/genetics ; DNA-Binding Proteins/*physiology ; Gene Expression Regulation ; *Genes ; Humans ; Lymphocytes/*physiology ; *Regulatory Sequences, Nucleic Acid ; Transcription Factors/*physiology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 6
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    In situ transcription: specific synthesis of complementary DNA in fixed tissue sections (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-06-17
    Beschreibung: A technique, in situ transcription, is described, in which reverse transcription of mRNAs is achieved within fixed tissue sections. An oligonucleotide complementary to proopiomelanocortin (POMC) mRNA was used as a primer for the specific synthesis of radiolabeled POMC cDNA in fixed sections of rat pituitary, thus permitting the rapid anatomical localization of POMC mRNA by autoradiography. Intermediate lobe signal intensities were sensitive to dopaminergic drugs, demonstrating that the method can be used for studies of mRNA regulation. The transcripts may also be eluted from tissue sections for a variety of uses, including the identification and cloning of autoradiographically localized cDNAs from small amounts of tissue.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tecott, L H -- Barchas, J D -- Eberwine, J H -- DA-05010/DA/NIDA NIH HHS/ -- MH-23861/MH/NIMH NIH HHS/ -- MH09099/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1988 Jun 17;240(4859):1661-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Nancy Pritzker Laboratory of Behavioral Neurochemistry, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, CA 94305.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2454508" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cloning, Molecular ; DNA/*biosynthesis ; Deoxycytidine/metabolism ; Electrophoresis, Polyacrylamide Gel ; Nucleic Acid Denaturation ; Nucleic Acid Hybridization ; Oligonucleotides/genetics ; Pituitary Gland/*metabolism ; Pro-Opiomelanocortin/*genetics ; RNA, Messenger/*metabolism ; RNA-Directed DNA Polymerase/metabolism ; Rats ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 7
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    Human ribosomal RNA genes: orientation of the tandem array and conservation of the 5' end (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-01-01
    Beschreibung: The multiple copies of the human ribosomal RNA genes (rDNA) are arranged as tandem repeat clusters that map to the middle of the short arms of chromosomes 13, 14, 15, 21, and 22. Concerted evolution of the gene family is thought to be mediated by interchromosomal recombination between rDNA repeat units, but such events would also result in conservation of the sequences distal to the rDNA on these five pairs of chromosomes. To test this possibility, a DNA fragment spanning the junction between rDNA and distal flanking sequence has been cloned and characterized. Restriction maps, sequence data, and gene mapping studies demonstrate that (i) the rRNA genes are transcribed in a telomere-to-centromere direction, (ii) the 5' end of the cluster and the adjacent non-rDNA sequences are conserved on the five pairs of chromosomes, and (iii) the 5' end of the cluster is positioned about 3.7 kb upstream from the transcription initiation site of the first repeat unit. The data support a model of concerted evolution by interchromosomal recombination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Worton, R G -- Sutherland, J -- Sylvester, J E -- Willard, H F -- Bodrug, S -- Dube, I -- Duff, C -- Kean, V -- Ray, P N -- Schmickel, R D -- HD-13506/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1988 Jan 1;239(4835):64-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genetics Department, Hospital for Sick Children, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3336775" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Biological Evolution ; Chromosomes, Human, Pair 13 ; Chromosomes, Human, Pair 14 ; Chromosomes, Human, Pair 15 ; Chromosomes, Human, Pair 21 ; Chromosomes, Human, Pair 22 ; Cloning, Molecular ; DNA, Ribosomal/*genetics ; Genes ; Humans ; RNA, Ribosomal/*genetics ; Sequence Homology, Nucleic Acid ; Transcription, Genetic
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 8
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    Protection of cattle against rinderpest with vaccinia virus recombinants expressing the HA or F gene (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-11-18
    Beschreibung: Rinderpest is a highly contagious ruminant viral disease manifested by a rapid course and greater than 90% mortality. Infectious vaccinia virus recombinants were constructed that express either the hemagglutinin or the fusion gene of rinderpest virus. All cattle vaccinated with either recombinant or with the combined recombinants produced neutralizing antibodies against rinderpest virus and were protected against the disease when challenged with more than 1000 times the lethal dose of the virus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yilma, T -- Hsu, D -- Jones, L -- Owens, S -- Grubman, M -- Mebus, C -- Yamanaka, M -- Dale, B -- New York, N.Y. -- Science. 1988 Nov 18;242(4881):1058-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Veterinary Microbiology and Immunology, University of California, Davis 95616.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3194758" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cattle ; Cloning, Molecular ; Hemagglutinins, Viral/genetics/*immunology ; Immunologic Memory ; Rinderpest/*prevention & control ; Vaccination ; *Vaccines ; *Vaccines, Synthetic ; Vaccinia virus/genetics ; Viral Fusion Proteins/genetics/*immunology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 9
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    Yeast KEX2 endopeptidase correctly cleaves a neuroendocrine prohormone in mammalian cells (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-07-08
    Beschreibung: Mammalian cell lines (BSC-40, NG108-15, and GH4C1) that cannot process the murine neuroendocrine peptide precursor prepro-opiomelanocortin (mPOMC) when its synthesis is directed by a vaccinia virus vector were coinfected with a second recombinant vaccinia virus carrying the yeast KEX2 gene, which encodes an endopeptidase that cleaves at pairs of basic amino acid residues. mPOMC was cleaved intracellularly to a set of product peptides normally found in vivo, including mature gamma-lipotropin and beta-endorphin1-31. In GH4C1 cells (a rat pituitary line), product peptides were incorporated into stored secretory granules. These results suggest that the inability of any particular cell line to process a prohormone precursor is due to the absence of a suitable endogenous processing enzyme.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thomas, G -- Thorne, B A -- Thomas, L -- Allen, R G -- Hruby, D E -- Fuller, R -- Thorner, J -- AI20563/AI/NIAID NIH HHS/ -- DK37274/DK/NIDDK NIH HHS/ -- HD18438/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1988 Jul 8;241(4862):226-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Vollum Institute for Advanced Biomedical Research, Oregon Health Sciences University, Portland 97201.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3291117" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cell Line ; Cloning, Molecular ; DNA, Recombinant ; Endopeptidases/*metabolism ; In Vitro Techniques ; Pro-Opiomelanocortin/*metabolism ; Protein Precursors/*metabolism ; Protein Processing, Post-Translational ; Saccharomyces cerevisiae/enzymology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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  • 10
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    Primer-directed enzymatic amplification of DNA with a thermostable DNA polymerase (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-01-29
    Beschreibung: A thermostable DNA polymerase was used in an in vitro DNA amplification procedure, the polymerase chain reaction. The enzyme, isolated from Thermus aquaticus, greatly simplifies the procedure and, by enabling the amplification reaction to be performed at higher temperatures, significantly improves the specificity, yield, sensitivity, and length of products that can be amplified. Single-copy genomic sequences were amplified by a factor of more than 10 million with very high specificity, and DNA segments up to 2000 base pairs were readily amplified. In addition, the method was used to amplify and detect a target DNA molecule present only once in a sample of 10(5) cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Saiki, R K -- Gelfand, D H -- Stoffel, S -- Scharf, S J -- Higuchi, R -- Horn, G T -- Mullis, K B -- Erlich, H A -- New York, N.Y. -- Science. 1988 Jan 29;239(4839):487-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cetus Corporation, Department of Human Genetics, Emeryville, CA 94608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2448875" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Cloning, Molecular ; DNA/*genetics ; DNA, Recombinant ; DNA-Directed DNA Polymerase/*metabolism ; Electrophoresis, Agar Gel ; Globins/genetics ; *Hot Temperature ; Humans ; *Nucleic Acid Amplification Techniques ; Nucleic Acid Denaturation ; Nucleic Acid Hybridization ; RNA/genetics ; Thermus/enzymology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
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