Cited by 260Protein Tyrosine PhosphatasesProtein Kinase Regulation and GTPase SignalingSignaling Pathways in Disease

DUSPs, to MAP kinases and beyond

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Huang, Ching-Yu, Tan, Tse-Hua·2012·Cell & Bioscience

Abstract

Phosphatases are important regulators of intracellular signaling events, and their functions have been implicated in many biological processes. Dual-specificity phosphatases (DUSPs), whose family currently contains 25 members, are phosphatases that can dephosphorylate both tyrosine and serine/threonine residues of their substrates. The archetypical DUSP, DUSP1/MKP1, was initially discovered to regulate the activities of MAP kinases by dephosphorylating the TXY motif in the kinase domain. However, although DUSPs were discovered more than a decade ago, only in the past few years have their various functions begun to be described. DUSPs can be categorized based on the presence or absence of a MAP kinase-interacting domain into typical DUSPs and atypical DUSPs, respectively. In this review, we discuss the current understanding of how the activities of typical DUSPs are regulated and how typical DUSPs can regulate the functions of their targets. We also summarize recent findings from several in vivo DUSP-deficient mouse models that studied the involvement of DUSPs during the development and functioning of T cells. Finally, we discuss briefly the potential roles of DUSPs in the regulation of non-MAP kinase targets, as well as in the modulation of tumorigenesis.

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  • DUSPs dephosphorylate both serine/threonine and tyrosine residues using an enzymatic mechanism conserved with that of tyrosine phosphatases, in which a conserved catalytic cysteine residue (HCxxxxxR) functions as a nucleophile.

    “DUSPs dephosphorylate both serine/threonine and tyrosine residues using an enzymatic mechanism conserved with that of tyrosine phosphatases in which a conserved catalytic cysteine residue (HCxxxxxR) functions as a nucleophile”

    From Molecular basis of MAP kinase regulation (2013) · cites this paper as [77]

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Authors
Huang, C.-Y., & Tan, T.-H.
Affiliations
National Health Research Institutes (TW)
Corresponding author
Huang, Ching-Yu
Venue
Cell & Bioscience
Published
2012
Volume
2
Issue
1
Pages
24
ISSN
2045-3701 (ISSN-L)
OpenAlex
W2095821804
Cited by
260
References
94
Citations by year
2026: 12 · 2025: 19 · 2024: 18 · 2023: 22 · 2022: 21 · 2021: 21 · 2020: 17 · 2019: 33 · 2018: 16 · 2017: 19 · 2016: 18 · 2015: 14 · 2014: 18 · 2013: 11 · 2012: 1
FWCI
5.66
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Cell & Bioscience (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • National Science Council
  • National Health Research Institutes
  • National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
Keywords
dual-specificity phosphatase, T cell development, carcinogenesis, intracellular signaling

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