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    A phospholipase C-dependent inositol polyphosphate kinase pathway required for efficient messenger RNA export (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-07-03
    Description: In order to identify additional factors required for nuclear export of messenger RNA, a genetic screen was conducted with a yeast mutant deficient in a factor Gle1p, which associates with the nuclear pore complex (NPC). The three genes identified encode phospholipase C and two potential inositol polyphosphate kinases. Together, these constitute a signaling pathway from phosphatidylinositol 4, 5-bisphosphate to inositol hexakisphosphate (IP6). The common downstream effects of mutations in each component were deficiencies in IP6 synthesis and messenger RNA export, indicating a role for IP6 in GLE1 function and messenger RNA export.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉York, J D -- Odom, A R -- Murphy, R -- Ives, E B -- Wente, S R -- New York, N.Y. -- Science. 1999 Jul 2;285(5424):96-100.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, Duke University Medical Center, DUMC 3813, Durham, NC 27710, USA. yorkj@acpub.duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10390371" target="_blank"〉PubMed〈/a〉
    Keywords: Biological Transport ; Carrier Proteins/genetics/*metabolism ; Genes, Fungal ; Genetic Complementation Test ; Inositol Phosphates/metabolism ; Mutation ; Nuclear Envelope/*metabolism ; Nuclear Pore Complex Proteins ; Phosphotransferases (Alcohol Group Acceptor)/genetics/*metabolism ; Phytic Acid/metabolism ; RNA, Fungal/metabolism ; RNA, Messenger/*metabolism ; Saccharomyces cerevisiae/genetics/*metabolism ; *Saccharomyces cerevisiae Proteins ; Signal Transduction ; Type C Phospholipases/*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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    A role for nuclear inositol 1,4,5-trisphosphate kinase in transcriptional control (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-03-17
    Description: Phospholipase C and two inositol polyphosphate (IP) kinases constitute a signaling pathway that regulates nuclear messenger RNA export through production of inositol hexakisphosphate (IP6). The inositol 1,4,5-trisphosphate kinase of this pathway in Saccharomyces cerevisiae, designated Ipk2, was found to be identical to Arg82, a regulator of the transcriptional complex ArgR-Mcm1. Synthesis of inositol 1,4,5,6-tetrakisphosphate, but not IP6, was required for gene regulation through ArgR-Mcm1. Thus, the phospholipase C pathway produces multiple IP messengers that modulate distinct nuclear processes. The results reveal a direct mechanism by which activation of IP signaling may control gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Odom, A R -- Stahlberg, A -- Wente, S R -- York, J D -- New York, N.Y. -- Science. 2000 Mar 17;287(5460):2026-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Pharmacology and Cancer Biology and of Biochemistry, Duke University Medical Center, DUMC 3813, Durham, NC 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10720331" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Arginine/metabolism ; Cell Nucleus/enzymology/*metabolism ; DNA-Binding Proteins/metabolism ; *Gene Expression Regulation, Fungal ; Inositol 1,4,5-Trisphosphate/metabolism ; Inositol Phosphates/*metabolism ; Minichromosome Maintenance 1 Protein ; Molecular Sequence Data ; Phosphoric Monoester Hydrolases/metabolism ; Phosphorylation ; Phosphotransferases (Alcohol Group Acceptor)/chemistry/*metabolism ; Phytic Acid/metabolism ; Saccharomyces cerevisiae/enzymology/*genetics ; Signal Transduction ; Transcription Factors/metabolism ; *Transcription, Genetic ; Type C Phospholipases/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)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
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