Cited by 564Protein Structure and DynamicsRNA and protein synthesis mechanismsChemical Synthesis and Analysis

Principles for designing ideal protein structures

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Koga, Nobuyasu, Tatsumi-Koga, Rie, Liu, Gaohua, Xiao, Rong, Acton, Thomas B., Montelione, Gaetano T., Baker, David·2012·Nature

Abstract

Unlike random heteropolymers, natural proteins fold into unique ordered structures. Understanding how these are encoded in amino-acid sequences is complicated by energetically unfavourable non-ideal features--for example kinked α-helices, bulged β-strands, strained loops and buried polar groups--that arise in proteins from evolutionary selection for biological function or from neutral drift. Here we describe an approach to designing ideal protein structures stabilized by completely consistent local and non-local interactions. The approach is based on a set of rules relating secondary structure patterns to protein tertiary motifs, which make possible the design of funnel-shaped protein folding energy landscapes leading into the target folded state. Guided by these rules, we designed sequences predicted to fold into ideal protein structures consisting of α-helices, β-strands and minimal loops. Designs for five different topologies were found to be monomeric and very stable and to adopt structures in solution nearly identical to the computational models. These results illuminate how the folding funnels of natural proteins arise and provide the foundation for engineering a new generation of functional proteins free from natural evolution.

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  • Using fragment assembly, piecewise fragment assembly and helical extension, the authors designed a large set of miniproteins that ranged in length from 50 to 65 amino acids and contained larger hydrophobic cores than previous miniprotein scaffold libraries.

    “Using fragment assembly7, piecewise fragment assembly8 and helical extension9, we designed a large set of miniproteins that ranged in length from 50 to 65 amino acids and contained larger hydrophobic cores than previous miniprotein scaffold libraries1.”

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Authors
Koga, N., Tatsumi-Koga, R., Liu, G., Xiao, R., Acton, T. B., Montelione, G. T., & Baker, D.
Affiliations
  • Howard Hughes Medical Institute (US)
  • Rutgers, The State University of New Jersey (US)
Corresponding author
  • Montelione, Gaetano T.
  • Baker, David
Venue
Nature
Published
2012-11
Volume
491
Issue
7423
Pages
222-227
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2121627241
Cited by
564
References
71
Citations by year
2026: 30 · 2025: 25 · 2024: 36 · 2023: 36 · 2022: 48 · 2021: 50 · 2020: 52 · 2019: 40 · 2018: 25 · 2017: 35 · 2016: 51 · 2015: 46 · 2014: 48 · 2013: 39 · 2012: 3
FWCI
17.38
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institute of General Medical Sciences (U54GM094597)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
Keywords
protein design, folding funnel, alpha-helix, beta-strand, sequence design, protein stability
MeSH terms
Computer Simulation, Models, Molecular, Proteins, Thermodynamics, Protein Structure, Secondary, Protein Structure, Tertiary, Protein Folding, Protein Stability

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