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论文类型：期刊论文

发表时间：2016-02-15

发表刊物：PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS

收录刊物：SCIE、EI、Scopus

卷号：444

页面范围：996-1002

ISSN号：0378-4371

关键字：Sequences analysis; Similarity; Moments of inertia; Tensor; Phylogenetic tree

摘要：Sequence analysis is one of the foundations in bioinformatics for the abundant information hidden in the sequences. It is helpful for scientists' study on the function of DNA, proteins and cells. In this paper, we outline a novel method for protein sequences similarity analysis based on the physical-chemical properties of amino acids. We consider the protein sequence as a rigid-body with mass. Then we introduce the moment of inertia to the calculation of similarity of sequences and the sequences are transformed into vectors by the tensor for moment of inertia. The Euclidean distance is employed as a measurement of the similarities. At last, the comparison with other references' results shows our approach is reasonable and effective. (C) 2015 Elsevier B.V. All rights reserved.