期刊
JOURNAL OF THEORETICAL BIOLOGY
卷 267, 期 3, 页码 272-275出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jtbi.2010.09.007
关键词
Protein structural class prediction; Secondary structure; Alternating frequency; Parallel and anti-parallel beta-sheets; Support vector machine
资金
- National Science Foundation of China [10801026]
One major problem with the existing algorithm for the prediction of protein structural classes is low accuracies for proteins from alpha/beta and alpha+beta classes. In this study, three novel features were rationally designed to model the differences between proteins from these two classes. In combination with other rational designed features, an 11-dimensional vector prediction method was proposed. By means of this method, the overall prediction accuracy based on 25PDB dataset was 1.5% higher than the previous best-performing method, MODAS. Furthermore, the prediction accuracy for proteins from alpha+beta class based on 25PDB dataset was 5% higher than the previous best-performing method, SCPRED. The prediction accuracies obtained with the D675 and FC699 datasets were also improved. (C) 2010 Elsevier Ltd. All rights reserved.
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