Cited by 287Protein Structure and DynamicsGenomics and Chromatin DynamicsDNA and Nucleic Acid Chemistry

The X-ray Structure of the GCN4-bZIP Bound to ATF/CREB Site DNA Shows the Complex Depends on DNA Flexibility

König, Peter, Richmond, Timothy J.·1993·Journal of Molecular Biology

Abstract

The X-ray structure of the DNA binding domain of the yeast transcriptional activator protein GCN4 bound to a DNA fragment containing the sequence of the perfectly symmetrical ATF/CREB site has been solved to 3.0 A resolution. The architecture of this specific recognition complex supports the current model for bZIP proteins: a homodimer of parallel alpha-helices form an interhelix coiled-coil region via the leucine zipper, and the two N-terminal basic regions fit into the major groove of half sites on opposite sides of the DNA double helix. The structure shows that DNA flexibility plays the predominant role in the preservation of protein contacts with the symmetric ATF/CREB site (ATGACGTCAT) as compared to the pseudo-symmetric AP-1 target site (ATGACTCAT), overcoming the positional displacement of functional groups introduced by the additional G.C base-pair at the center of the ATF/CREB sequence.

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Crossref · 10.1006/jmbi.1993.1490

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  • In crystal structures of GCN4 homodimers and Jun-Fos heterodimers, g-e' intersubunit salt bridges are seen between oppositely charged residues at positions gi and e/+5.

    “In the crystal structures of GCN4 homodimers and Jun-Fos heterodimers, g-e' intersubunit salt bridges are visible between oppositely charged amino acids in the gi and e/+5 positions (O'Shea et al., 1991; Ellenberger et al., 1992; Konig & Richmond, 1993; Glover & Harrison, 1995).”

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Authors
König, P., & Richmond, T. J.
Affiliations
ETH Zurich (CH)
Venue
Journal of Molecular Biology
Publisher
Elsevier BV
Published
1993-09
Volume
233
Issue
1
Pages
139-154
ISSN
0022-2836 (ISSN-L)
OpenAlex
W2056115277
Cited by
287
References
0
Citations by year
2026: 2 · 2025: 1 · 2022: 2 · 2021: 2 · 2020: 3 · 2019: 5 · 2018: 2 · 2017: 3 · 2016: 2 · 2015: 3 · 2014: 4 · 2013: 5 · 2012: 8
FWCI
9.52
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Molecular Biology (publishedVersion)
  • PubMed (publishedVersion)
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
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA and Nucleic Acid Chemistry
Keywords
GCN4, bZIP transcription factors, DNA-binding domain, DNA flexibility, protein-DNA complex structure, leucine zipper, coiled coil, AP-1 binding site, major groove binding
MeSH terms
Amino Acid Sequence, Base Sequence, Binding Sites, Blood Proteins, Crystallization, DNA-Binding Proteins, Fungal Proteins, Genes, Synthetic, Models, Molecular, Molecular Sequence Data, Nucleic Acid Conformation, Oligodeoxyribonucleotides, Peptide Fragments, Plant Proteins, Protein Conformation, Protein Kinases, Recombinant Proteins, Regulatory Sequences, Nucleic Acid, Transcription Factors, X-Ray Diffraction, Leucine Zippers, Cyclic AMP Response Element-Binding Protein, Protein Structure, Secondary, Saccharomyces cerevisiae Proteins, Macromolecular Substances, Basic-Leucine Zipper Transcription Factors, Activating Transcription Factors, G-Box Binding Factors

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