Predicting changes in protein stability caused by mutation using sequence-and structure-based methods in a CAGI5 blind challenge.

TitlePredicting changes in protein stability caused by mutation using sequence-and structure-based methods in a CAGI5 blind challenge.
Publication TypeJournal Article
Year of Publication2019
AuthorsStrokach A, Corbi-Verge C, Kim PM
JournalHum Mutat
Volume40
Issue9
Pagination1414-1423
Date Published2019 09
ISSN1098-1004
Abstract

Predicting the impact of mutations on proteins remains an important problem. As part of the CAGI5 frataxin challenge, we evaluate the accuracy with which Provean, FoldX, and ELASPIC can predict changes in the Gibbs free energy of a protein using a limited data set of eight mutations. We find that different methods have distinct strengths and limitations, with no method being strictly superior to other methods on all metrics. ELASPIC achieves the highest accuracy while also providing a web interface which simplifies the evaluation and analysis of mutations. FoldX is slightly less accurate than ELASPIC but is easier to run locally, as it does not depend on external tools or datasets. Provean achieves reasonable results while being computational less expensive than the other methods and not requiring a structure of the protein. In addition to methods submitted to the CAGI5 community experiment, and with the aim to inform about other methods with high accuracy, we also evaluate predictions made by Rosetta's ddg_monomer protocol, Rosetta's cartesian_ddg protocol, and thermodynamic integration calculations using Amber package. ELASPIC still achieves the highest accuracy, while Rosetta's catesian_ddg protocol appears to perform best in capturing the overall trend in the data.

DOI10.1002/humu.23852
Alternate JournalHum. Mutat.
PubMed ID31243847
PubMed Central IDPMC6744338
Grant ListR13 HG006650 / HG / NHGRI NIH HHS / United States
U41 HG007346 / HG / NHGRI NIH HHS / United States
Discovery grant RGPIN-2017-064 / / Natural Sciences and Engineering Research Council of Canada / International