Cited by 39Protein Kinase Regulation and GTPase SignalingGenomics and Chromatin DynamicsPI3K/AKT/mTOR signaling in cancer

IPMK: A Versatile Regulator of Nuclear Signaling Events

Kim, Eunha, Beon, Jiyoon, Lee, Seulgi, Park, Jina, Kim, Seyun·2016·Advances in Biological Regulation

Abstract

Inositol-derived metabolites (e.g., phosphoinositides and inositol polyphosphates) are key second messengers that are essential for controlling a wide range of cellular events. Inositol polyphosphate multikinase (IPMK) exhibits complex catalytic activities that eventually yield water-soluble inositol polyphosphates (e.g., IP4 and IP5) and lipid-bound phosphatidylinositol 3,4,5-trisphosphate. A series of recent studies have suggested that IPMK may be a multifunctional regulator in the nucleus of mammalian cells. In this review, we highlight the novel modes of action of IPMK in transcriptional and epigenetic regulation, and discuss its roles in physiology and disease.

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Crossref · 10.1016/j.jbior.2015.11.005

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  • IPMK is a dual-specificity 6-/3-kinase that generates InsP4 and InsP5 species.

    “A key enzyme in this pathway is inositol polyphosphate multikinase (IPMK), a dual-specificity 6-/3-kinase that generates InsP4 and InsP5 species [11,12].”
  • IPMK has dual inositol and lipid kinase activities.

    “With dual inositol and lipid kinase activities, IPMK generates pivotal signaling molecules such as InsP4 (inositol tetraphosphate), InsP5 (inositol pentaphosphate), and PIP3 (phosphoinositide 3,4,5-trisphosphate), positioning it as a critical regulator of cellular mechanisms.”
  • IPMK generates InsP4, InsP5, and PIP3.

    “With dual inositol and lipid kinase activities, IPMK generates pivotal signaling molecules such as InsP4 (inositol tetraphosphate), InsP5 (inositol pentaphosphate), and PIP3 (phosphoinositide 3,4,5-trisphosphate), positioning it as a critical regulator of cellular mechanisms.”
  • The HOIP pathway uses InsP3 as a precursor and involves a series of phosphorylation events catalyzed by various kinases.

    “The HOIP pathway, which uses InsP3 as a precursor, involves a series of phosphorylation events catalyzed by various kinases [10,11] (Figure 1).”
  • IPMK can modulate cellular signaling independently of its kinase activity through protein-protein interaction.

    “This enzyme can modulate cellular signaling through multiple mechanisms: by generating highly phosphorylated inositol phosphates (HOIPs) [10,12,14], producing phosphatidylinositol 3,4,5-trisphosphate (PIP3) [10,12,14], or even functioning independently of its kinase activity through protein–protein interaction [10,11,12,14].”

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Authors
Kim, E., Beon, J., Lee, S., Park, J., & Kim, S.
Affiliations
Korea Advanced Institute of Science and Technology (KR)
Corresponding author
Kim, Seyun
Venue
Advances in Biological Regulation
Publisher
Elsevier BV
Published
2016-05
Volume
61
Pages
25-32
ISSN
2212-4926 (ISSN-L)
OpenAlex
W2184794753
Cited by
39
References
9
Citations by year
2025: 4 · 2024: 2 · 2023: 3 · 2022: 2 · 2021: 2 · 2020: 5 · 2019: 6 · 2018: 2 · 2017: 9 · 2016: 4
FWCI
0.52
Type
journal article
Language
en
Open access
closed
Locations
  • Advances in Biological Regulation (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Research Foundation of Korea
  • Ministry of Education (NRF-2012H1A2A1048895, NRF-2014H1A2A1020802, NRF-2013M3C7A1056102)
Topics
  • 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
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
Keywords
inositol polyphosphate multikinase, inositol polyphosphates, phosphoinositides, nuclear signaling, transcriptional regulation, epigenetic regulation, phosphatidylinositol 3,4,5-trisphosphate, second messengers, inositol tetrakisphosphate
MeSH terms
Animals, Carcinoma, Cell Nucleus, Epithelial Cells, Humans, Intestinal Neoplasms, Mutation, Transcription, Genetic, Signal Transduction, Phosphotransferases (Alcohol Group Acceptor), Phosphatidylinositol Phosphates, Phosphatidylinositol 3-Kinases, Epigenesis, Genetic

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