Cited by 827NF-κB Signaling PathwaysGenomics and Chromatin DynamicsSignaling Pathways in Disease

Acetylation of RelA at discrete sites regulates distinct nuclear functions of NF‐κB

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Chen, Lin‐feng, Mu, Yajun, Greene, Warner C.·2002·The EMBO Journal

Abstract

The nuclear function of the heterodimeric NF-kappaB transcription factor is regulated in part through reversible acetylation of its RelA subunit. We now demonstrate that the p300 and CBP acetyltransferases play a major role in the in vivo acetylation of RelA, principally targeting lysines 218, 221 and 310 for modification. Analysis of the functional properties of hypoacetylated RelA mutants containing lysine-to-arginine substitutions at these sites and of wild-type RelA co-expressed in the presence of a dominantly interfering mutant of p300 reveals that acetylation at lysine 221 in RelA enhances DNA binding and impairs assembly with IkappaBalpha. Conversely, acetylation of lysine 310 is required for full transcriptional activity of RelA in the absence of effects on DNA binding and IkappaBalpha assembly. Together, these findings highlight how site-specific acetylation of RelA differentially regulates distinct biological activities of the NF-kappaB transcription factor complex.

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  • p300 and CREB binding protein acetylate p65 at Lys218, 221, and 310, which boosts p65 DNA binding and blocks its binding to nuclear IκBα, thereby regulating transcription.

    “It is our particular interest that acetylation of p65 at Lys218, 221 and 310 by p300 and cAMP response element binding (CREB) binding protein (CBP) regulates its transcriptional activity by increasing p65 DNA binding and by inhibiting its association with nuclear IκBα for the prevention of NF-κB relocation to the cytoplasm [55].”

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  1. Brown,K., Park,S., Kanno,T., Franzoso,G. and Siebenlist,U. (1993) Mutual regulation of the transcriptional activator NF-k B and its inhibitor, IkBa. Proc. Natl Acad. Sci. USA, 90, 2532±2536.

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Authors
Chen, L., Mu, Y., & Greene, W. C.
Affiliations
University of California, San Francisco (US)
Corresponding author
Greene, Warner C.
Venue
The EMBO Journal
Published
2002-12-01
Volume
21
Issue
23
Pages
6539-6548
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2004335766
Cited by
827
References
56
Citations by year
2026: 18 · 2025: 37 · 2024: 34 · 2023: 33 · 2022: 26 · 2021: 54 · 2020: 24 · 2019: 31 · 2018: 22 · 2017: 33 · 2016: 41 · 2015: 25 · 2014: 41 · 2013: 63 · 2012: 48
FWCI
9.55
Type
journal article
Language
en
Open access
Locations
  • The EMBO Journal (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Yale University
  • Gladstone Institutes
  • National Institutes of Health
  • University of Illinois at Urbana-Champaign
  • Center for AIDS Research, University of Washington
  • University of California, San Francisco
  • National Institute of Mental Health (P30MH059037, P30-MH 59037)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
Keywords
NF-κB, RelA, acetylation, P300, CBP, lysine acetylation sites, IκBα, DNA binding, transcriptional activity, post-translational modification, transcription factor regulation
MeSH terms
p300-CBP-Associated Factor, Acetylation, Acetyltransferases, Cell Nucleus, Enhancer Elements, Genetic, Mutation, Transcription Factors, NF-kappa B, Cell Cycle Proteins, p300-CBP Transcription Factors, Histone Acetyltransferases, Transcription Factor RelA

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