Combining physicochemical and evolutionary information for protein contact prediction.
Combining physicochemical and evolutionary information for protein contact prediction.
复制标题
结合蛋白质接触预测的物理化学和进化信息。
DOI:
10.1371/journal.pone.0108438
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Brock O
中科院分区:
文献类型:
--
作者:
Schneider M;Brock O
We introduce a novel contact prediction method that achieves high prediction accuracy by combining evolutionary and physicochemical information about native contacts. We obtain evolutionary information from multiple-sequence alignments and physicochemical information from predicted ab initio protein structures. These structures represent low-energy states in an energy landscape and thus capture the physicochemical information encoded in the energy function. Such low-energy structures are likely to contain native contacts, even if their overall fold is not native. To differentiate native from non-native contacts in those structures, we develop a graph-based representation of the structural context of contacts. We then use this representation to train an support vector machine classifier to identify most likely native contacts in otherwise non-native structures. The resulting contact predictions are highly accurate. As a result of combining two sources of information—evolutionary and physicochemical—we maintain prediction accuracy even when only few sequence homologs are present. We show that the predicted contacts help to improve ab initio structure prediction. A web service is available at http://compbio.robotics.tu-berlin.de/epc-map/.
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影响因子:
--
作者:
Eickholt J;Wang Z;Cheng J
通讯作者:
Cheng J
影响因子:
5.8
作者:
Di Lena, Pietro;Nagata, Ken;Baldi, Pierre
通讯作者:
Baldi, Pierre
DOI:
10.1002/prot.340230412
发表时间:
1995-12-01
期刊:
PROTEINS-STRUCTURE FUNCTION AND GENETICS
影响因子:
--
作者:
Frishman, D;Argos, P
通讯作者:
Argos, P
影响因子:
2.9
作者:
Blum, Ben;Jordan, Michael I.;Baker, David
通讯作者:
Baker, David
影响因子:
2.9
作者:
Monastyrskyy, Bohdan;Fidelis, Krzysztof;Tramontano, Anna;Kryshtafovych, Andriy
通讯作者:
Kryshtafovych, Andriy