Inositol polyphosphate multikinase (ArgRIII) determines nuclear mRNA export in Saccharomyces cerevisiae
Abstract
The ARGRIII gene of Saccharomyces cerevisiae encodes a transcriptional regulator that also has inositol polyphosphate multikinase (ipmk) activity [Saiardi et al. (1999) Curr. Biol. 9, 1323–1326]. To investigate how inositol phosphates regulate gene expression, we disrupted the ARGRIII gene. This mutation impaired nuclear mRNA export, slowed cell growth, increased cellular [InsP 3] 170‐fold and decreased [InsP 6] 100‐fold, indicating reduced phosphorylation of InsP 3 to InsP 6. Levels of diphosphoinositol polyphosphates were decreased much less dramatically than was InsP 6. Low levels of InsP 6, and considerable quantities of Ins(1,3,4,5)P 4, were synthesized by an ipmk‐independent route. Transcriptional control by ipmk reflects that it is a pivotal regulator of nuclear mRNA export via inositol phosphate metabolism.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
IPMK has roles in nutrient sensing, growth factor signaling, mRNA transport, and transcription regulation.
“Initially identified in yeast and later recognized as essential for mammalian embryonic development, IPMK has transitioned from a niche interest to a focal point in studies of nutrient sensing, growth factor signaling, mRNA transport, and transcription regulation.”
From From Obscurity to Prominence: IPMK’s Expanding Role in Cellular Signaling, Physiology, and Disease (2025) · cites this paper as [18]
IPMK functions in mRNA export, chromatin remodeling, transcription, nutrient sensing, and growth factor signaling.
“Its diverse functions span a wide range of cellular processes, including mRNA export [17,18], chromatin remodeling [19,20], transcription [21,22], nutrient sensing [23], and growth factor signaling [15].”
From From Obscurity to Prominence: IPMK’s Expanding Role in Cellular Signaling, Physiology, and Disease (2025) · cites this paper as [18]
Cited by
Sorted by citations
Signal Transduction Cascades Regulating Fungal Development and Virulence
Lengeler, K. B., Davidson, R. C., D'souza, C., Harashima, T., Shen, W.-C., Wang, P., Pan, X., Waugh, M., & Heitman, J. (2000) · Microbiology and Molecular Biology Reviews · doi:10.1128/mmbr.64.4.746-785.2000 · Cited by 915 · see citing works
Regulation of Chromatin Remodeling by Inositol Polyphosphates
Steger, D. J., Haswell, E. S., Miller, A. L., Wente, S. R., & O'Shea, E. K. (2003) · Science · doi:10.1126/science.1078062 · Cited by 352 · see citing works
Modulation of ATP-Dependent Chromatin-Remodeling Complexes by Inositol Polyphosphates
Shen, X., Xiao, H., Ranallo, R., Wu, W.-H., & Wu, C. (2003) · Science · doi:10.1126/science.1078068 · Cited by 338 · see citing works
Saiardi, A., Nagata, E., Luo, H. R., Sawa, A., Luo, X., Snowman, A. M., & Snyder, S. H. (2001) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.041614598 · Cited by 110 · see citing works
Self-citationNALASKOWSKI, M. M., DESCHERMEIER, C., FANICK, W., & MAYR, G. W. (2002) · Biochemical Journal · doi:10.1042/bj20020327 · Cited by 89 · see citing works
Caffrey, J. J., Darden, T., Wenk, M. R., & Shears, S. B. (2001) · FEBS Letters · doi:10.1016/s0014-5793(01)02500-5 · Cited by 47 · see citing works
Self-citationFrom Obscurity to Prominence: IPMK’s Expanding Role in Cellular Signaling, Physiology, and Disease
Mishra, S. H., Chatterjee, S., Viera-Preval, L., & Guha, P. (2025) · Biomolecules · doi:10.3390/biom15091266 · Cited by 1 · see citing works
“Its diverse functions span a wide range of cellular processes, including mRNA export [17,18], chromatin remodeling [19,20], transcription [21,22], nutrient sensing [23], and growth factor signaling [15].”
- Authors
- Saiardi, A., Caffrey, J. J., Snyder, S. H., & Shears, S. B.
- Affiliations
- Johns Hopkins University (US)
- National Institutes of Health (US)
- Venue
- FEBS Letters
- Publisher
- Wiley
- Published
- 2000-02-14
- Volume
- 468
- Issue
- 1
- Pages
- 28-32
- ISSN
- 0014-5793 (ISSN-L)
- 1873-3468
- OpenAlex
- W1983536335
- Cited by
- 139
- References
- 0
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 2 · 2023: 1 · 2020: 3 · 2019: 3 · 2018: 3 · 2017: 2 · 2016: 3 · 2015: 5 · 2014: 3 · 2013: 1 · 2012: 6
- FWCI
- 5.31
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- FEBS Letters (publishedVersion)
- PubMed (publishedVersion)
- UCL Discovery (University College London) (submittedVersion)
- Funders
- National Institute of Mental Health (MH-18501)
- National Institute on Drug Abuse (DA 00074)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
- Keywords
- inositol polyphosphate multikinase, ArgR, mRNA export, inositol phosphate metabolism, phytic acid, inositol trisphosphate, transcriptional regulation, Saccharomyces cerevisiae, gene disruption, cell growth
- MeSH terms
- Biological Transport, Cell Division, Cell Nucleus, Chromatography, High Pressure Liquid, Fungal Proteins, Inositol Phosphates, Phosphorylation, Phytic Acid, RNA, Messenger, Saccharomyces cerevisiae, Signal Transduction, Inositol 1,4,5-Trisphosphate, Gene Expression Regulation, Fungal, Mutagenesis, Site-Directed, Gene Deletion, Phosphotransferases (Alcohol Group Acceptor), Saccharomyces cerevisiae Proteins
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review