Large-scale discovery of protein interactions at residue resolution using co-evolution calculated from genomic sequences.

Large-scale discovery of protein interactions at residue resolution using co-evolution calculated from genomic sequences.
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DOI:
10.1038/s41467-021-21636-z
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发表时间:
2021-03-02
影响因子:
16.6
通讯作者:
Marks DS
Marks DS
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Green AG;Elhabashy H;Brock KP;Maddamsetti R;Kohlbacher O;Marks DS

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Increasing numbers of protein interactions have been identified in high-throughput experiments, but only a small proportion have solved structures. Recently, sequence coevolution-based approaches have led to a breakthrough in predicting monomer protein structures and protein interaction interfaces. Here, we address the challenges of large-scale interaction prediction at residue resolution with a fast alignment concatenation method and a probabilistic score for the interaction of residues. Importantly, this method (EVcomplex2) is able to assess the likelihood of a protein interaction, as we show here applied to large-scale experimental datasets where the pairwise interactions are unknown. We predict 504 interactions de novo in the E. coli membrane proteome, including 243 that are newly discovered. While EVcomplex2 does not require available structures, coevolving residue pairs can be used to produce structural models of protein interactions, as done here for membrane complexes including the Flagellar Hook-Filament Junction and the Tol/Pal complex. Our understanding of the residue-level details of protein interactions remains incomplete. Here, the authors show sequence coevolution can be used to infer interacting proteins with residue-level details, including predicting 467 interactions de novo in the Escherichia coli cell envelope proteome.
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