Cited by 136Protein Structure and DynamicsChemical Synthesis and AnalysisRNA and protein synthesis mechanisms

Molecular basis of coiled-coil formation

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Steinmetz, Michel O., Jelesarov, Ilian, Matousek, William M., Honnappa, Srinivas, Jahnke, Wolfgang, Missimer, John H., Frank, Sabine, Alexandrescu, Andrei T. +1 more·2007·Proceedings of the National Academy of Sciences

Abstract

Coiled coils have attracted considerable interest as design templates in a wide range of applications. Successful coiled-coil design strategies therefore require a detailed understanding of coiled-coil folding. One common feature shared by coiled coils is the presence of a short autonomous helical folding unit, termed “trigger sequence,” that is indispensable for folding. Detailed knowledge of trigger sequences at the molecular level is thus key to a general understanding of coiled-coil formation. Using a multidisciplinary approach, we identify and characterize here the molecular determinants that specify the helical conformation of the monomeric early folding intermediate of the GCN4 coiled coil. We demonstrate that a network of hydrogen-bonding and electrostatic interactions stabilize the trigger-sequence helix. This network is rearranged in the final dimeric coiled-coil structure, and its destabilization significantly slows down GCN4 leucine zipper folding. Our findings provide a general explanation for the molecular mechanism of coiled-coil formation.

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Crossref · 10.1073/pnas.0700321104

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Authors
Steinmetz, M. O., Jelesarov, I., Matousek, W. M., Honnappa, S., Jahnke, W., Missimer, J. H., Frank, S., Alexandrescu, A. T., & Kammerer, R. A.
Affiliations
  • Paul Scherrer Institute (CH)
  • University of Zurich (CH)
  • University of Connecticut (US)
  • *Biomolecular Research, Structural Biology, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland;
  • Novartis (Switzerland) (CH)
  • F. Hoffmann-La Roche AG (CH)
  • Wellcome Centre for Cell-Matrix Research (GB)
Venue
Proceedings of the National Academy of Sciences
Published
2007-04-24
Volume
104
Issue
17
Pages
7062-7067
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2032892814
Cited by
136
References
61
Citations by year
2026: 2 · 2025: 6 · 2024: 9 · 2022: 1 · 2021: 2 · 2020: 5 · 2019: 3 · 2018: 4 · 2017: 7 · 2016: 5 · 2015: 7 · 2014: 10 · 2013: 13 · 2012: 15
FWCI
4.91
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DORA PSI (Paul Scherrer Institute) (submittedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion)
Funders
  • Wellcome Trust
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (109423)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
Keywords
GCN4, leucine zipper, helix stabilization, hydrogen bonding, electrostatic interactions, protein folding mechanism, dimerization
MeSH terms
Arginine, DNA-Binding Proteins, Hydrogen-Ion Concentration, Kinetics, Magnetic Resonance Spectroscopy, Peptides, Solutions, Thermodynamics, Transcription Factors, Leucine Zippers, Protein Folding, Amino Acid Substitution, Saccharomyces cerevisiae Proteins, Mutant Proteins, Basic-Leucine Zipper Transcription Factors

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