An information-theoretic approach to the prediction of protein structural class.
An information-theoretical approach, which combines a sequence decomposition technique and a fuzzy clustering algorithm, is proposed for prediction of protein structural class. This approach could bypass the process of selecting and comparing sequence features as done previously. First, distances between each pair of protein sequences are estimated using a conditional decomposition technique in information theory. Then, the fuzzy k-nearest neighbor algorithm is used to identify the structural class of a protein given as set of sample sequences. To verify the strength of our method, we choose three widely used datasets constructed by Chou and Zhou. It is shown by the Jackknife test that our approach represents an improvement in the prediction of accuracy over existing methods.
Department of Mathematics, Shanghai Normal University, Shanghai 200234, China.
Xiaoqi
X
Zheng
Chun
C
Li
Jun
J
Wang
D000465:Algorithms; D000595:Amino Acid Sequence; D007257:Information Theory; D008956:Models, Chemical; D011506:Proteins / Q000737:chemistry* / Q000145:classification; D020539:Sequence Analysis, Protein / Q000379:methods*
D011506:Proteins