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Structure Prediction using sparse simulated NOE restraints with Rosetta in CASP11.

著者 Ovchinnikov S , Park H , Kim DE , Liu Y , Yu-Ruei Wang R , Baker D
Proteins.2016 Feb 9 ; ():.
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In CASP11 we generated protein structure models using simulated ambiguous and unambiguous NOE restraints with a two stage protocol. Low resolution models were generated guided by the unambiguous restraints using continuous chain folding for alpha and alpha-beta proteins, and iterative annealing for all beta proteins to take advantage of the strand pairing information implicit in the restraints. The Rosetta fragment/model hybridization protocol was then used to recombine and regularize these models, and refine them in the Rosetta full atom energy function guided by both the unambiguous and the ambiguous restraints. 15 out of 19 targets were modeled with GDT-TS quality scores greater than 60 for model 1, significantly improving upon the non-assisted predictions. Our results suggest that atomic level accuracy is achievable using sparse NOE data when there is at least one correctly assigned NOE for every residue. This article is protected by copyright. All rights reserved.
PMID: 26857542 [PubMed - as supplied by publisher]
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