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• W4386021957 abstract "Abstract Motivation Molecular-level classification of protein–protein interfaces can greatly assist in functional characterization and rational drug design. The most accurate protein interface predictions rely on finding homologous proteins with known interfaces since most interfaces are conserved within the same protein family. The accuracy of these template-based prediction approaches depends on the correct choice of suitable templates. Choosing the right templates in the immunoglobulin superfamily (IgSF) is challenging because its members share low sequence identity and display a wide range of alternative binding sites despite structural homology. Results We present a new approach to predict protein interfaces. First, template-specific, informative evolutionary profiles are established using a mutual information-based approach. Next, based on the similarity of residue level conservation scores derived from the evolutionary profiles, a query protein is hierarchically clustered with all available template proteins in its superfamily with known interface definitions. Once clustered, a subset of the most closely related templates is selected, and an interface prediction is made. These initial interface predictions are subsequently refined by extensive docking. This method was benchmarked on 51 IgSF proteins and can predict nontrivial interfaces of IgSF proteins with an average and median F-score of 0.64 and 0.78, respectively. We also provide a way to assess the confidence of the results. The average and median F-scores increase to 0.8 and 0.81, respectively, if 27% of low confidence cases and 17% of medium confidence cases are removed. Lastly, we provide residue level interface predictions, protein complexes, and confidence measurements for singletons in the IgSF. Availability and implementation Source code is freely available at: https://gitlab.com/fiserlab.org/interdct_with_refinement." @default.
• W4386021957 created "2023-08-22" @default.
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• W4386021957 date "2023-08-21" @default.
• W4386021957 modified "2023-10-06" @default.
• W4386021957 title "Optimal Selection of Suitable Templates in Protein Interface Prediction" @default.
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• W4386021957 doi "https://doi.org/10.1093/bioinformatics/btad510" @default.
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• W4386021957 hasPublicationYear "2023" @default.
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