Cited by 422Protein Structure and DynamicsGenomics and Chromatin DynamicsChemical Synthesis and Analysis

The DOI matches its Crossref record; 25 of the 26 references it cites were found in a registry or an index.

Mechanism of specificity in the Fos-Jun oncoprotein heterodimer

O'Shea, Erin K., Rutkowski, Rheba, Kim, Peter S.·1992·Cell

Abstract

Fos and Jun, the protein products of the nuclear proto-oncogenes c-fos and c-jun, associate preferentially to form a heterodimer that binds to DNA and modulates transcription of a wide variety of genes in response to mitogenic stimuli. Both Fos and Jun contain a single leucine zipper region. Previous studies have shown that the leucine zippers of Fos and Jun are necessary and sufficient to mediate preferential heterodimer formation. The leucine zipper regions from Fos and Jun are also known to fold autonomously, most likely as two-stranded, parallel coiled coils. We show here that 8 amino acids from Fos and from Jun are sufficient to mediate preferential heterodimer formation in a background of the GCN4 leucine zipper sequence. Using pH titration and amino acid replacements, we also show that destabilization of the Fos homodimer by acidic residues provides a major thermodynamic driving force for preferential heterodimer formation.

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Crossref · 10.1016/0092-8674(92)90145-3

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Metadata

Authors
O'Shea, E. K., Rutkowski, R., & Kim, P. S.
Affiliations
  • Howard Hughes Medical Institute (US)
  • Massachusetts Institute of Technology (US)
Venue
Cell
Publisher
Elsevier BV
Published
1992-02
Volume
68
Issue
4
Pages
699-708
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2066101080
Cited by
422
References
26
Citations by year
2026: 1 · 2025: 2 · 2024: 4 · 2023: 3 · 2022: 7 · 2021: 4 · 2020: 3 · 2019: 8 · 2018: 3 · 2017: 9 · 2016: 5 · 2015: 7 · 2014: 7 · 2013: 7 · 2012: 14
FWCI
13.51
Type
journal article
Language
en
Open access
closed
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Rita Allen Foundation
  • Allen Foundation
  • National Institutes of Health (2r01gm044162-10)
  • National Institute of General Medical Sciences (GM44162)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Physical Sciences › Chemistry › Organic Chemistry › Chemical Synthesis and Analysis
Keywords
Fos-Jun heterodimer, leucine zipper, c-fos, c-Jun, protein-protein interaction specificity, coiled coil, GCN4 leucine zipper, acidic residues, pH titration, amino acid substitutions, transcriptional regulation, mitogenic signaling
MeSH terms
Amino Acid Sequence, Hydrogen-Ion Concentration, Models, Molecular, Molecular Sequence Data, Protein Conformation, Thermodynamics, Molecular Structure, Leucine Zippers, Proto-Oncogene Proteins c-jun, Proto-Oncogene Proteins c-fos

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