A phospholipase C-dependent inositol polyphosphate kinase pathway required for efficient messenger RNA export

John D. York, Audrey R. Odom, Robert Murphy, Eric B. Ives, Susan R. Wente

Research output: Contribution to journalArticle

424 Scopus citations

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.

Original languageEnglish
Pages (from-to)96-100
Number of pages5
JournalScience
Volume285
Issue number5424
DOIs
StatePublished - Jul 2 1999

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