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Indexed by:期刊论文

Date of Publication:2016-02-15

Journal:PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS

Included Journals:SCIE、EI、Scopus

Volume:444

Page Number:996-1002

ISSN No.:0378-4371

Key Words:Sequences analysis; Similarity; Moments of inertia; Tensor; Phylogenetic tree

Abstract: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.