Cited by 27Protein Kinase Regulation and GTPase SignalingMelanoma and MAPK PathwaysProtein Tyrosine Phosphatases

Quantifying ERK2–protein interactions by fluorescence anisotropy: PEA-15 inhibits ERK2 by blocking the binding of DEJL domains

Callaway, Kari, Rainey, Mark A., Dalby, Kevin N.·2005·Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics

Abstract

While mitogen-activated protein kinase signaling pathways constitute highly regulated networks of protein-protein interactions, little quantitative information for these interactions is available. Here we highlight recent fluorescence anisotropy binding studies that focus on the interactions of ERK1 and ERK2 with PEA-15 (antiapoptotic phosphoprotein enriched in astrocytes-15 kDa), a small protein that sequesters ERK2 in the cytoplasm. The regulation of ERK2 by PEA-15 is appraised in the light of a simple equilibrium-binding model for reversible ERK2 nucleoplasmic-cytoplasmic shuttling, which elaborates on the theory of Burack and Shaw (J. Biol. Chem. 280, 3832-3837; 2005). Also highlighted is the recent observation that the peptide N-QKGKPRDLELPLSPSL-C, derived from the docking site for ERK/JNK and LEL (DEJL) in Elk-1, displaces PEA-15 from ERK2. It is proposed that the C-terminus of PEA-15 ((121)LXLXXXXKK(129)) is a reverse DEJL domain [which has a general consensus of R/K-phi(A)-X(3/4)-phi(B), where phi(A) and phi(B) are hydrophobic residues (Leu, Ile, or Val)], which mediates one arm of a bidentate PEA-15 interaction with ERK2. The notion that PEA-15 is a potent inhibitor of many ERK2-mediated phosphorylations, by virtue of its ability to block ERK2-DEJL domain interactions, is proposed.

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Crossref · 10.1016/j.bbapap.2005.11.002

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  • PEA-15 binds the ERK2 KIM binding groove in the non-canonical C-to-N direction.

    “Similarly, previous studies showed that PEA-15 binds the ERK2 KIM binding groove in the non-canonical C->N direction [Fig.2(B)].75”

    From Molecular basis of MAP kinase regulation (2013) · cites this paper as [75]

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Authors
Callaway, K., Rainey, M. A., & Dalby, K. N.
Affiliations
The University of Texas at Austin (US)
Corresponding author
Dalby, Kevin N.
Venue
Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics
Publisher
Elsevier BV
Published
2005-12
Volume
1754
Issue
1-2
Pages
316-323
ISSN
1570-9639 (ISSN-L)
OpenAlex
W2078834086
Cited by
26
References
65
Citations by year
2023: 2 · 2022: 1 · 2020: 2 · 2019: 3 · 2013: 4 · 2012: 2
FWCI
0.16
Type
journal article
Language
en
Open access
closed
Locations
  • Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of General Medical Sciences (R01GM059802, GM59802)
  • National Institute of Environmental Health Sciences (ES 07247, #ES07784, P30ES007784, T32ES007247)
  • National Center for Research Resources (P41-RR01081, P41RR001081)
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 › Melanoma and MAPK Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
Keywords
ERK2, PEA-15, Elk-1, protein-protein interaction, MAPK signaling, ERK2 phosphorylation
MeSH terms
Animals, Cell Nucleus, Cytoplasm, Fluorescence Polarization, Humans, Kinetics, Models, Biological, Models, Molecular, Phosphoproteins, Protein Binding, Protein Structure, Tertiary, Mitogen-Activated Protein Kinase 1, Active Transport, Cell Nucleus, Mitogen-Activated Protein Kinase 3, Apoptosis Regulatory Proteins

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