Cited by 281Protein Structure and Dynamicsthermodynamics and calorimetric analysesEnzyme Structure and Function

SKEMPI: a Structural Kinetic and Energetic database of Mutant Protein Interactions and its use in empirical models

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Moal, Iain H., Fernández-Recio, Juan·2012·Bioinformatics

Abstract

Motivation: Empirical models for the prediction of how changes in sequence alter protein–protein binding kinetics and thermodynamics can garner insights into many aspects of molecular biology. However, such models require empirical training data and proper validation before they can be widely applied. Previous databases contained few stabilizing mutations and no discussion of their inherent biases or how this impacts model construction or validation. Results: We present SKEMPI, a database of 3047 binding free energy changes upon mutation assembled from the scientific literature, for protein–protein heterodimeric complexes with experimentally determined structures. This represents over four times more data than previously collected. Changes in 713 association and dissociation rates and 127 enthalpies and entropies were also recorded. The existence of biases towards specific mutations, residues, interfaces, proteins and protein families is discussed in the context of how the data can be used to construct predictive models. Finally, a cross-validation scheme is presented which is capable of estimating the efficacy of derived models on future data in which these biases are not present. Availability: The database is available online at http://life.bsc.es/pid/mutation_database/ Contact: juanf@bsc.es

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Authors
Moal, I. H., & Fernández-Recio, J.
Affiliations
  • Barcelona Supercomputing Center (ES)
  • Joint BSC-IRB Research Program in Computational Biology, Life Science Department, Barcelona Supercomputing Center, C/Jordi Girona 29, 08034 Barcelona, Spain
Venue
Bioinformatics
Published
2012-08-01
Volume
28
Issue
20
Pages
2600-2607
ISSN
  • 1367-4803 (ISSN-L)
  • 1367-4811
OpenAlex
W2157807259
Cited by
281
References
70
Citations by year
2026: 6 · 2025: 23 · 2024: 26 · 2023: 29 · 2022: 15 · 2021: 19 · 2020: 19 · 2019: 14 · 2018: 38 · 2017: 19 · 2016: 17 · 2015: 24 · 2014: 17 · 2013: 14
FWCI
7.06
Type
journal article
Language
en
Open access
Locations
  • Bioinformatics (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ministerio de Ciencia e Innovación
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › thermodynamics and calorimetric analyses
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
Keywords
protein-protein binding, stabilizing mutations, association and dissociation rates, enthalpy and entropy changes, binding kinetics, binding thermodynamics, empirical model, data bias, cross-validation, mutation database
MeSH terms
Kinetics, Models, Chemical, Protein Binding, Thermodynamics, Protein Interaction Mapping, Databases, Protein, Mutant Proteins

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