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  • 1
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    GTP-GDP exchange proteins (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-05-18
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levitzki, A -- New York, N.Y. -- Science. 1990 May 18;248(4957):794.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, Hebrew University of Jerusalem, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2188357" target="_blank"〉PubMed〈/a〉
    Keywords: Guanine Nucleotides/*metabolism ; Guanosine Diphosphate/*metabolism ; Guanosine Triphosphate/*metabolism ; Mutation ; Oncogene Protein p21(ras)/genetics/*metabolism ; Proto-Oncogene Proteins/genetics/*metabolism ; Proto-Oncogene Proteins p21(ras) ; Saccharomyces cerevisiae/genetics/metabolism ; Schizosaccharomyces/genetics/metabolism
    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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    Blocking of EGF-dependent cell proliferation by EGF receptor kinase inhibitors (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-11-11
    Description: A systematic series of low molecular weight protein tyrosine kinase inhibitors were synthesized; they had progressively increasing affinity over a 2500-fold range toward the substrate site of epidermal growth factor (EGF) receptor kinase domain. These compounds inhibited EGF receptor kinase activity up to three orders of magnitude more than they inhibited insulin receptor kinase, and they also effectively inhibited the EGF-dependent autophosphorylation of the receptor. The most potent compounds effectively inhibited the EGF-dependent proliferation of A431/clone 15 cells with little or no effect on the EGF-independent proliferation of these cells. The potential use of tyrosine protein kinase inhibitors as antiproliferative agents is demonstrated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yaish, P -- Gazit, A -- Gilon, C -- Levitzki, A -- New York, N.Y. -- Science. 1988 Nov 11;242(4880):933-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, Hebrew University of Jerusalem, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3263702" target="_blank"〉PubMed〈/a〉
    Keywords: Binding, Competitive ; Cell Division/drug effects ; Cell Line ; Epidermal Growth Factor/*pharmacology ; Molecular Structure ; Molecular Weight ; Phosphorylation ; Protein-Tyrosine Kinases/*antagonists & inhibitors ; Receptor, Epidermal Growth Factor/*metabolism ; Receptor, Insulin/metabolism ; Solubility ; Structure-Activity Relationship
    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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    Tyrosine kinase inhibition: an approach to drug development (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-03-24
    Description: Protein tyrosine kinases (PTKs) regulate cell proliferation, cell differentiation, and signaling processes in the cells of the immune system. Uncontrolled signaling from receptor tyrosine kinases and intracellular tyrosine kinases can lead to inflammatory responses and to diseases such as cancer, atherosclerosis, and psoriasis. Thus, inhibitors that block the activity of tyrosine kinases and the signaling pathways they activate may provide a useful basis for drug development. This article summarizes recent progress in the development of PTK inhibitors and demonstrates their potential use in the treatment of disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levitzki, A -- Gazit, A -- New York, N.Y. -- Science. 1995 Mar 24;267(5205):1782-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, Alexander Silberman Institute of Life Sciences, Hebrew University of Jerusalem, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7892601" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Catechols/pharmacology ; Cell Division/drug effects ; *Drug Design ; Humans ; Nitriles/pharmacology ; Protein-Tyrosine Kinases/*antagonists & inhibitors ; Signal Transduction/drug effects ; Structure-Activity Relationship ; *Tyrphostins
    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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    Prevention of lipopolysaccharide-induced lethal toxicity by tyrosine kinase inhibitors (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-05-27
    Description: Septic shock results from excessive stimulation of the host immune system, especially macrophages, by lipopolysaccharide (LPS), or endotoxin, which resides on the outer membrane of bacteria. Protein tyrosine kinase inhibitors of the tyrphostin AG 126 family protect mice against LPS-induced lethal toxicity. The protection correlates with the ability of these agents to block LPS-induced production of tumor necrosis factor alpha (TNF-alpha) and nitric oxide in macrophages as well as LPS-induced production of TNF-alpha in vivo. Furthermore, this inhibitory effect correlated with the potency of AG 126 to block LPS-induced tyrosine phosphorylation of a p42MAPK protein substrate in the murine macrophage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Novogrodsky, A -- Vanichkin, A -- Patya, M -- Gazit, A -- Osherov, N -- Levitzki, A -- New York, N.Y. -- Science. 1994 May 27;264(5163):1319-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Felsenstein Medical Research Center, Petach Tikva, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8191285" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzylidene Compounds/*pharmacology ; Biological Assay ; Cell Line ; Cell Survival/drug effects ; Dose-Response Relationship, Drug ; Enzyme-Linked Immunosorbent Assay ; Female ; Lipopolysaccharides/*toxicity ; Macrophage Activation ; Macrophages, Peritoneal/*drug effects/metabolism ; Mice ; Mice, Inbred C57BL ; Mitogen-Activated Protein Kinase 1 ; Nitric Oxide/*biosynthesis ; Nitriles/*pharmacology ; Phosphorylation ; Protein-Serine-Threonine Kinases/metabolism ; Protein-Tyrosine Kinases/*antagonists & inhibitors/metabolism ; Tumor Necrosis Factor-alpha/analysis/*biosynthesis/toxicity ; *Tyrphostins
    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
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    From epinephrine to cyclic AMP (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-08-12
    Description: Binding of catecholamines to the beta-adrenergic receptor results in the activation of adenylate cyclase and the intracellular formation of adenosine 3',5'-monophosphate (cAMP). In the past 20 years the events that lead from hormone binding at the cell surface receptor site to the synthesis of cAMP at the inner layer of the membrane have been intensively studied. Signal transduction in this system involves the sequential interaction of the beta-adrenergic receptor with the guanine nucleotide-binding protein (Gs) and the adenylate cyclase catalyst (C). The mechanism of signal transduction from the receptor through Gs to C, as well as the role of the adenylate cyclase inhibitory G protein Gi, is discussed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Levitzki, A -- GM 37110/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1988 Aug 12;241(4867):800-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry, Hebrew University of Jerusalem, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2841758" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/metabolism ; Animals ; Cyclic AMP/*physiology ; Epinephrine/*physiology ; Homeostasis ; Receptors, Adrenergic, beta/physiology
    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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