Cited by 394Fungal and yeast genetics researchProtein Kinase Regulation and GTPase SignalingGenomics and Chromatin Dynamics

A Role for Nuclear Inositol 1,4,5-Trisphosphate Kinase in Transcriptional Control

Odom, Audrey R., Stahlberg, Alke, Wente, Susan R., York, John D.·2000·Science

Abstract

Phospholipase C and two inositol polyphosphate (IP) kinases constitute a signaling pathway that regulates nuclear messenger RNA export through production of inositol hexakisphosphate (IP 6 ). 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 IP 6 , 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.

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Crossref · 10.1126/science.287.5460.2026

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39 of 39 references verified0 citation errors · 0 not checkable

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  • Odom et al. showed that Arg82 is an inositol phosphate kinase that converts Ins(1,4,5)P3 to Ins(1,4,5,6)P4 and that kinase activity is required for its role in transcriptional regulation.

    “Odom et al showed that Arg82 is an inositol phosphate kinase that converts Ins(1,4,5)P3 to Ins(1,4,5,6)P4 and that kinase activity is required for its role in transcriptional regulation (figure 5d)36.”
  • IPK2 enhances DNA binding of the ArgR-MCM1 complex independently of its kinase activity.

    “This study revealed that IPK2 (yeast IPMK) enhances DNA binding of the ArgR-MCM1 complex independently of its kinase activity.”
  • The transcriptional function of ArgR-MCM1 is regulated by InsP4 and InsP5, which are products of IPK2's kinase activity.

    “However, the transcriptional function of this complex is regulated by InsP4 and InsP5, which are products of IPK2’s kinase activity.”
  • InsP4 (Ins 1,4,5,6) is crucial for activating the ArgR-MCM1 transcription factor in yeast.

    “The York group demonstrated that InsP4 (Ins 1, 4, 5, 6) is crucial for activating the ArgR-MCM1 transcription factor in yeast [73], which regulates genes involved in cell cycle, cell type specificity, and responses to pheromones and nutrients.”

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Authors
Odom, A. R., Stahlberg, A., Wente, S. R., & York, J. D.
Affiliations
  • Departments of Pharmacology and Cancer Biology and of Biochemistry, Duke University Medical Center, DUMC 3813, Durham, NC 27710, USA.
  • Department of Cell Biology and Physiology, Washington University School of Medicine, 660 South Euclid, St. Louis, MO 63110, USA.
  • Washington University in St. Louis (US)
  • Duke University (US)
Corresponding author
York, John D.
Venue
Science
Published
2000-03-17
Volume
287
Issue
5460
Pages
2026-2029
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2087358641
Cited by
394
References
39
Citations by year
2026: 5 · 2025: 8 · 2024: 8 · 2023: 7 · 2022: 5 · 2021: 5 · 2020: 10 · 2019: 11 · 2018: 6 · 2017: 13 · 2016: 13 · 2015: 17 · 2014: 6 · 2013: 11 · 2012: 21
FWCI
10.49
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
Keywords
phytic acid, mRNA export, transcriptional regulation, Saccharomyces cerevisiae, gene expression regulation
MeSH terms
Amino Acid Sequence, Arginine, Cell Nucleus, DNA-Binding Proteins, Inositol Phosphates, Molecular Sequence Data, Type C Phospholipases, Phosphoric Monoester Hydrolases, Phosphorylation, Phytic Acid, Saccharomyces cerevisiae, Transcription Factors, Transcription, Genetic, Signal Transduction, Inositol 1,4,5-Trisphosphate, Gene Expression Regulation, Fungal, Phosphotransferases (Alcohol Group Acceptor), Minichromosome Maintenance 1 Protein

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