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  • Artikel  (7)
  • Animals  (6)
  • Amino Acid Sequence  (3)
  • American Association for the Advancement of Science (AAAS)  (7)
  • 1985-1989  (4)
  • 1980-1984  (3)
  • 1950-1954
  • 1
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    Amiloride directly inhibits the Na,K-ATPase activity of rabbit kidney proximal tubules (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1983-05-27
    Beschreibung: Amiloride inhibited the ouabain-sensitive rate of oxygen consumption (QO2) of a suspension of rabbit intact proximal tubules in the presence of different concentrations of extracellular sodium. Measurements of the ouabain-sensitive QO2 in the presence of nystatin, the tissue sodium and potassium contents of the tubules in suspension, and the sodium- and potassium-dependent adenosinetriphosphatase (Na,K-ATPase) activity of lysed tubule membranes indicated that the effect of amiloride was due to a direct inhibition of the Na,K-ATPase activity of the proximal tubule.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soltoff, S P -- Mandel, L J -- AM26816/AM/NIADDK NIH HHS/ -- GM29256/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1983 May 27;220(4600):957-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6302840" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amiloride/*pharmacology ; Animals ; Dose-Response Relationship, Drug ; Female ; Ion Channels/drug effects ; Kidney Tubules, Proximal/drug effects/*enzymology ; Nystatin/pharmacology ; Ouabain/pharmacology ; Oxygen Consumption/drug effects ; Pyrazines/*pharmacology ; Rabbits ; Rats ; Sodium/metabolism ; Sodium-Potassium-Exchanging ATPase/*antagonists & inhibitors/metabolism
    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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    Phase variation: evolution of a controlling element (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1980-09-19
    Beschreibung: Phase variation in bacteria is regulated by homologous recombination at a specific DNA site. This recombinational event causes the inversion of a 970-base-pair DNA sequence that includes the promoter necessary for transcription of a flagellar gene. The invertible segment is flanked by two sites that are necessary for the inversion and contains a gene (hin) whose product mediates the inversion event. The hin gene shows extensive homology with the TnpR gene carried on the Tn3 transposon. It is also homologous with the gin gene carried on bacteriophage mu. These relationships suggest that the phase variation system may have evolved by the association of a transposon with a resident gene and the subsequent specialization of these elements to regulate flagellar antigen expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Simon, M -- Zieg, J -- Silverman, M -- Mandel, G -- Doolittle, R -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1370-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6251543" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Bacterial Proteins/*genetics ; Base Sequence ; *DNA Transposable Elements ; DNA, Bacterial/genetics ; Flagellin/*genetics ; Genes ; Recombination, Genetic ; Salmonella/*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)
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Oxygen consumption and cellular ion transport: evidence for adenosine triphosphate to O2 ratio near 6 in intact cell (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1980-06-06
    Beschreibung: Oxygen (O2) consumption and net K+ uptake were measured simultaneously upon reintroduction of K+ into a K+-depleted suspension of renal tubules. The K+/O2 stoichiometries of 11.8 +/- 0.2 and 8.4 +/- 0.6 were obtained for reduced nicotinamide adenine dinucleotide- and flavoprotein-linked substrates, respectively. These values complement classical K+ to adenosine triphosphate (ATP) and ATP/O2 stoichiometries, thereby demonstrating a remarkably efficient coupling between the processes of Na+- and K+-dependent adenosinetriphosphatase-mediated ion transport and oxidative phosphorylation within the intact cell.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Harris, S I -- Balaban, R S -- Mandel, L J -- New York, N.Y. -- Science. 1980 Jun 6;208(4448):1148-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6246581" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adenosine Triphosphate/*metabolism ; Animals ; Biological Transport, Active ; Kidney Tubules/metabolism ; Mitochondria/metabolism ; NAD/metabolism ; Ouabain/pharmacology ; *Oxidative Phosphorylation ; *Oxygen Consumption/drug effects ; Potassium/*metabolism ; Rabbits ; Sodium-Potassium-Exchanging ATPase/*metabolism
    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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  • 4
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    Gonadotroph-specific expression of metallothionein fusion genes in pituitaries of transgenic mice (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1986-02-28
    Beschreibung: Transgenic mice expressing a metallothionein-somatostatin fusion gene contain high concentrations of somatostatin in the anterior pituitary gland, a tissue that does not normally produce somatostatin. Immunoreactive somatostatin within the anterior pituitaries was found exclusively within gonadotrophs. Similarly, a metallothionein-human growth-hormone fusion gene was also expressed selectively in gonadotrophs. It is proposed that sequences common to the two fusion genes are responsible for the gonadotroph-specific expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Low, M J -- Lechan, R M -- Hammer, R E -- Brinster, R L -- Habener, J F -- Mandel, G -- Goodman, R H -- AM 01313/AM/NIADDK NIH HHS/ -- AM 30457/AM/NIADDK NIH HHS/ -- AM 31400/AM/NIADDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1986 Feb 28;231(4741):1002-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2868526" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; DNA, Recombinant/metabolism ; Genes ; Genetic Engineering ; Humans ; Immunoenzyme Techniques ; Luteinizing Hormone/metabolism ; Metallothionein/*genetics ; Mice ; Pituitary Gland, Anterior/*metabolism ; Rats ; Somatostatin/*genetics/metabolism
    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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  • 5
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    Fertilization events induced by neurotransmitters after injection of mRNA in Xenopus eggs (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1988-07-22
    Beschreibung: Fertilization initiates in the egg a dramatic increase in intracellular calcium that opens ion channels and causes exocytosis. To explore the possibility that these events might involve a receptor-mediated pathway, receptors for serotonin or acetylcholine (M1 muscarinic) were expressed in the Xenopus egg; serotonin or acetylcholine then could initiate a series of responses similar to those normally initiated by sperm. Thus, there may be an endogenous receptor in the egg membrane that is activated by sperm, and the serotonin or M1 muscarinic receptor may replace the sperm receptor in this pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kline, D -- Simoncini, L -- Mandel, G -- Maue, R A -- Kado, R T -- Jaffe, L A -- New York, N.Y. -- Science. 1988 Jul 22;241(4864):464-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, University of Connecticut Health Center, Farmington 06032.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3134693" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Cloning, Molecular ; Cytoplasmic Granules/physiology ; Endocytosis ; Exocytosis ; Female ; *Fertilization ; GTP-Binding Proteins/physiology ; Genetic Engineering ; Inositol Phosphates/physiology ; Male ; Membrane Potentials ; Receptors, Muscarinic/*physiology ; Receptors, Serotonin/*physiology ; Sperm-Ovum Interactions ; Xenopus laevis
    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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  • 6
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    Thyrotropin-releasing hormone precursor: characterization in rat brain (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1986-01-10
    Beschreibung: To characterize the precursor of mammalian thyrotropin-releasing hormone (TRH), a rat hypothalamic lambda gt11 library was screened with an antiserum directed against a synthetic peptide representing a portion of the rat TRH prohormone. The nucleotide sequence of the immunopositive complementary DNA encoded a protein with a molecular weight of 29,247. This protein contained five copies of the sequence Gln-His-Pro-Gly flanked by paired basic amino acids and could therefore generate five TRH molecules. In addition, potential cleavage sites in the TRH precursor could produce other non-TRH peptides, which may be secreted. In situ hybridization to rat brain sections demonstrated that the pre-proTRH complementary DNA detected neurons concentrated in the parvocellular division of the paraventricular nucleus, the same location as cells detected by immunohistochemistry. These findings indicate that mammalian TRH arises by posttranslational processing of a larger precursor protein. The ability of the TRH prohormone to generate multiple copies of the bioactive peptide may be an important mechanism in the amplification of hormone production.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lechan, R M -- Wu, P -- Jackson, I M -- Wolf, H -- Cooperman, S -- Mandel, G -- Goodman, R H -- AM 34540/AM/NIADDK NIH HHS/ -- CA 37370/CA/NCI NIH HHS/ -- P30 AM 39428/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1986 Jan 10;231(4734):159-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3079917" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Brain/*physiology ; DNA/genetics ; Hypothalamus/physiology ; Molecular Weight ; Protein Precursors/genetics/*physiology ; Pyrrolidonecarboxylic Acid/analogs & derivatives ; Rats ; Rats, Inbred Strains ; Thyrotropin-Releasing Hormone/genetics/*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)
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
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    Genomic organization and deduced amino acid sequence of a putative sodium channel gene in Drosophila (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1987-08-14
    Beschreibung: The deduced amino acid sequence of a Drosophila gene isolated with a vertebrate sodium channel complementary DNA probe revealed an organization virtually identical to the vertebrate sodium channel protein; four homologous domains containing all putative membrane-spanning regions are repeated in tandem with connecting linkers of various sizes. All areas of the protein presumed to be critical for channel function show high evolutionary conservation. These include those proposed to function in voltage-sensitive gating, inactivation, and ion selectivity. All 24 putative gating charges of the vertebrate protein are in identical positions in the Drosophila gene. Ten introns interrupt the coding regions of the four homology units; introns with positions conserved among homology units bracket a region hypothesized to be the selectivity filter for the channel. The Drosophila gene maps to the right arm of the second chromosome in region 60D-E. This position does not coincide with any known mutations that confer behavioral phenotypes, but is close to the seizure locus (60A-B), which has been hypothesized to code for a voltage-sensitive sodium channel.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Salkoff, L -- Butler, A -- Wei, A -- Scavarda, N -- Giffen, K -- Ifune, C -- Goodman, R -- Mandel, G -- 1 R01 NS24785-01/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1987 Aug 14;237(4816):744-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2441469" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Amino Acid Sequence ; Animals ; Biological Evolution ; DNA/genetics ; DNA Restriction Enzymes ; Drosophila/*genetics ; Drosophila melanogaster/genetics ; Electrophorus/genetics ; Exons ; Gene Expression Regulation ; Introns ; *Ion Channels ; Membrane Proteins/*genetics ; RNA, Messenger/genetics ; Sequence Homology, Nucleic Acid ; Sodium/*metabolism
    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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