Cited by 117Protein Structure and DynamicsMonoclonal and Polyclonal Antibodies ResearchEvolution and Genetic Dynamics

Antibody evolution constrains conformational heterogeneity by tailoring protein dynamics

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Zimmermann, Jörg, Oakman, Erin L., Thorpe, Ian F., Shi, Xinghua, Abbyad, Paul, Brooks, Charles L., Boxer, Steven G., Romesberg, Floyd E.·2006·Proceedings of the National Academy of Sciences

Abstract

The evolution of proteins with novel function is thought to start from precursor proteins that are conformationally heterogeneous. The corresponding genes may be duplicated and then mutated to select and optimize a specific conformation. However, testing this idea has been difficult because of the challenge of quantifying protein flexibility and conformational heterogeneity as a function of evolution. Here, we report the characterization of protein heterogeneity and dynamics as a function of evolution for the antifluorescein antibody 4-4-20. Using nonlinear laser spectroscopy, surface plasmon resonance, and molecular dynamics simulations, we demonstrate that evolution localized the Ab-combining site from a heterogeneous ensemble of conformations to a single conformation by introducing mutations that act cooperatively and over significant distances to rigidify the protein. This study demonstrates how protein dynamics may be tailored by evolution and has important implications for our understanding of how novel protein functions are evolved.

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Authors
Zimmermann, J., Oakman, E. L., Thorpe, I. F., Shi, X., Abbyad, P., Brooks, C. L., Boxer, S. G., & Romesberg, F. E.
Affiliations
  • Departments of *Chemistry and
  • University of California San Diego (US)
  • Scripps Research Institute (US)
  • Stanford University (US)
Venue
Proceedings of the National Academy of Sciences
Published
2006-09-12
Volume
103
Issue
37
Pages
13722-13727
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2132524280
Cited by
116
References
46
Citations by year
2025: 1 · 2024: 3 · 2023: 1 · 2022: 10 · 2021: 3 · 2020: 4 · 2019: 6 · 2018: 7 · 2017: 3 · 2016: 4 · 2015: 8 · 2014: 8 · 2013: 6 · 2012: 11
FWCI
3.54
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
Keywords
antibody evolution, conformational heterogeneity, protein dynamics, combining site, protein flexibility
MeSH terms
Animals, Antibodies, Humans, Immunoglobulin Fab Fragments, Mutation, Protein Conformation, Proteins, Evolution, Molecular, Fluorescein, Surface Plasmon Resonance

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