Cited by 42Protein Kinase Regulation and GTPase SignalingMelanoma and MAPK PathwaysProtein Tyrosine Phosphatases

Creation of a Stress-activated p90 Ribosomal S6 Kinase

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Smith, Jeffrey A., Poteet-Smith, Celeste E., Lannigan, Deborah A., Freed, Tiffany A., Zoltoski, Anna J., Sturgill, Thomas W.·2000·Journal of Biological Chemistry

Abstract

Mitogen-activated protein kinase-activated protein kinases (MAPKAPKs) lie immediately downstream of the mitogen-activated protein kinases (MAPKs), extracellular signal-regulated kinase (ERK), and p38 MAPK. Although the family of MAPKAPKs shares sequence similarity, it demonstrates selectivity for the upstream activator. Here we demonstrate that each of the ERK- and p38 MAPK-regulated MAPKAPKs contains a MAPK docking site positioned distally to the residue(s) phosphorylated by MAPKs. The isolated MAPK docking sites show specificity for the upstream activator similar to that reported for the full-length proteins. Moreover, replacement of the ERK docking site of p90 ribosomal S6 kinase with the p38 MAPK docking site of MAPKAPK2 converts p90 ribosomal S6 kinase into a stress-activated kinase in vivo. It is apparent that mechanisms controlling events downstream of the proline-directed MAPKs involve specific MAPK docking sites within the carboxyl termini of the MAPKAPKs that determine the cascade in which the MAPKAPK functions.

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Crossref · 10.1074/jbc.m005892200

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  • The MAPK interaction region in MAPKAPKs is located C-terminal to the CaMK-type kinase domain and determines the specificity of MAPK-mediated MAPKAPK activation.

    “The MAPK interaction region in MAPKAPKs is located in their C-terminal region next to their (CaMK)-type protein kinase domain and this region determines the specificity of MAPK-mediated MAPKAPK activation (30).”
  • The MAPK binding specificity of full-length proteins can be changed by swapping motifs that bind different MAPKs in cell-based reporter systems.

    “It was previously shown that the MAPK binding specificity of full length proteins can be altered by swapping motifs that bind different MAPKs in cell based reporter systems (30).”

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  1. Dudley, D. T., Pang, L., Decker, S. J., Bridges, A. J., and Saltiel, A. R. (1995) Proc. Natl. Acad. Sci. U. S. A. 92, 7686 -7689

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Authors
Smith, J. A., Poteet-Smith, C. E., Lannigan, D. A., Freed, T. A., Zoltoski, A. J., & Sturgill, T. W.
Affiliations
  • Howard Hughes Medical Institute (US)
  • University of Virginia (US)
Corresponding author
Smith, Jeffrey A.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2000-10
Volume
275
Issue
41
Pages
31588-31593
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1980028299
Cited by
42
References
23
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2021: 1 · 2020: 1 · 2019: 1 · 2015: 2 · 2014: 3 · 2012: 2
FWCI
1.09
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • American Cancer Society
  • National Institutes of Health
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK41077, R01DK041077)
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
p90 ribosomal S6 kinase, MAPKAPK, MAPKAPK2, ERK, p38 MAPK, stress-activated kinases, MAPK signaling
MeSH terms
Amino Acid Sequence, Animals, Binding Sites, Cell Line, Enzyme Activation, Cricetinae, Humans, Molecular Sequence Data, Phosphorylation, Precipitin Tests, Receptors, Estrogen, Recombinant Fusion Proteins, Substrate Specificity, Transfection, Protein Engineering, Protein Structure, Tertiary, Ribosomal Protein S6 Kinases, Mitogen-Activated Protein Kinases, Mitogen-Activated Protein Kinase Kinases, MAP Kinase Signaling System, p38 Mitogen-Activated Protein Kinases, Rats

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