Detecting temporal protein complexes from dynamic protein-protein interaction networks.
Detecting temporal protein complexes from dynamic protein-protein interaction networks.
复制标题
从动态蛋白质-蛋白质相互作用网络中检测时间蛋白质复合物
DOI:
10.1186/1471-2105-15-335
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发表时间:
2014-10-04
影响因子:
3
通讯作者:
Yang P
中科院分区:
文献类型:
--
作者:
Ou-Yang L;Dai DQ;Li XL;Wu M;Zhang XF;Yang P
BackgroundProteins dynamically interact with each other to perform their biological functions. The dynamic operations of protein interaction networks (PPI) are also reflected in the dynamic formations of protein complexes. Existing protein complex detection algorithms usually overlook the inherent temporal nature of protein interactions within PPI networks. Systematically analyzing the temporal protein complexes can not only improve the accuracy of protein complex detection, but also strengthen our biological knowledge on the dynamic protein assembly processes for cellular organization.ResultsIn this study, we propose a novel computational method to predict temporal protein complexes. Particularly, we first construct a series of dynamic PPI networks by joint analysis of time-course gene expression data and protein interaction data. Then a Time Smooth Overlapping Complex Detection model (TS-OCD) has been proposed to detect temporal protein complexes from these dynamic PPI networks. TS-OCD can naturally capture the smoothness of networks between consecutive time points and detect overlapping protein complexes at each time point. Finally, a nonnegative matrix factorization based algorithm is introduced to merge those very similar temporal complexes across different time points.ConclusionsExtensive experimental results demonstrate the proposed method is very effective in detecting temporal protein complexes than the state-of-the-art complex detection techniques.
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影响因子:
14.9
作者:
Chatr-Aryamontri A;Breitkreutz BJ;Heinicke S;Boucher L;Winter A;Stark C;Nixon J;Ramage L;Kolas N;O'Donnell L;Reguly T;Breitkreutz A;Sellam A;Chen D;Chang C;Rust J;Livstone M;Oughtred R;Dolinski K;Tyers M
通讯作者:
Tyers M
影响因子:
9.5
作者:
Kim, Yongsoo;Han, Seungmin;Hwang, Daehee
通讯作者:
Hwang, Daehee
影响因子:
3
作者:
Altaf-Ul-Amin, Md;Shinbo, Yoko;Kanaya, Shigehiko
通讯作者:
Kanaya, Shigehiko
影响因子:
64.8
作者:
Gavin, AC;Bösche, M;Superti-Furga, G
通讯作者:
Superti-Furga, G
DOI:
10.1073/pnas.0901910106
发表时间:
2009-07-21
影响因子:
11.1
作者:
Ahmed, Amr;Xing, Eric P.
通讯作者:
Xing, Eric P.