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Can Predicted Protein 3D Structures Provide Reliable Insights into whether Missense Variants Are Disease Associated?

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Ittisoponpisan, Sirawit, Islam, Suhail A., Khanna, Tarun, Alhuzimi, Eman, David, Alessia, Sternberg, Michael J.E.·2019·Journal of Molecular Biology

Abstract

Knowledge of protein structure can be used to predict the phenotypic consequence of a missense variant. Since structural coverage of the human proteome can be roughly tripled to over 50% of the residues if homology-predicted structures are included in addition to experimentally determined coordinates, it is important to assess the reliability of using predicted models when analyzing missense variants. Accordingly, we assess whether a missense variant is structurally damaging by using experimental and predicted structures. We considered 606 experimental structures and show that 40% of the 1965 disease-associated missense variants analyzed have a structurally damaging change in the mutant structure. Only 11% of the 2134 neutral variants are structurally damaging. Importantly, similar results are obtained when 1052 structures predicted using Phyre2 algorithm were used, even when the model shares low (<40%) sequence identity to the template. Thus, structure-based analysis of the effects of missense variants can be effectively applied to homology models. Our in-house pipeline, Missense3D, for structurally assessing missense variants was made available at http://www.sbg.bio.ic.ac.uk/~missense3d.

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Metadata

Authors
Ittisoponpisan, S., Islam, S. A., Khanna, T., Alhuzimi, E., David, A., & Sternberg, M. J. E.
Venue
Journal of Molecular Biology
Publisher
Elsevier BV
Published
2019-05
Volume
431
Issue
11
Pages
2197-2212
ISSN
0022-2836 (ISSN-L)
OpenAlex
W2936956377
Cited by
489
References
13
FWCI
29.53
Type
journal article
Language
en
Open access
hybrid

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Ittisoponpisan, S., Islam, S. A., Khanna, T., Alhuzimi, E., David, A., & Sternberg, M. J. E. (2019). Can Predicted Protein 3D Structures Provide Reliable Insights into whether Missense Variants Are Disease Associated? Journal of Molecular Biology. https://doi.org/10.1016/j.jmb.2019.04.009

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