Predicting subcellular location of apoptosis proteins based on wavelet transform and support vector machine |
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Authors: | Jian-Ding Qiu San-Hua Luo Jian-Hua Huang Xing-Yu Sun Ru-Ping Liang |
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Affiliation: | (1) Department of Chemistry, Nanchang University, 330031 Nanchang, People’s Republic of China;(2) Department of Chemical Engineering, Pingxiang College, 337055 Pingxiang, People’s Republic of China |
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Abstract: | Apoptosis proteins have a central role in the development and homeostasis of an organism. These proteins are very important for understanding the mechanism of programmed cell death. As a result of genome and other sequencing projects, the gap between the number of known apoptosis protein sequences and the number of known apoptosis protein structures is widening rapidly. Because of this extremely unbalanced state, it would be worthwhile to develop a fast and reliable method to identify their subcellular locations so as to gain better insight into their biological functions. In view of this, a new method, in which the support vector machine combines with discrete wavelet transform, has been developed to predict the subcellular location of apoptosis proteins. The results obtained by the jackknife test were quite promising, and indicated that the proposed method can remarkably improve the prediction accuracy of subcellular locations, and might also become a useful high-throughput tool in characterizing other attributes of proteins, such as enzyme class, membrane protein type, and nuclear receptor subfamily according to their sequences. |
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