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  • Title: A phospholipase C-dependent inositol polyphosphate kinase pathway required for efficient messenger RNA export.
    Author: York JD, Odom AR, Murphy R, Ives EB, Wente SR.
    Journal: Science; 1999 Jul 02; 285(5424):96-100. PubMed ID: 10390371.
    Abstract:
    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.
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