Rescaled range and transition matrix analysis of DNA sequences

Details Rescaled range and transition matrix analysis of DNA sequences Rescaled range and transition matrix analysis of DNA sequences

1999-10-27

arxiv.org/abs/physics/9910039v1

Comm. Theor. Phys. 33(4) (2000) 673-678

Physics

Biological Physics

8 pages with one figure. Communication in Theoretical Physics (2000) (to appear)

Scientific paper

In this paper we treat some fractal and statistical features of the DNA sequences. First, a fractal record model of DNA sequence is proposed by mapping DNA sequences to integer sequences, followed by R/S analysis of the model and computation of the Hurst exponents. Second, we consider transition between the four kinds of bases within DNA. The transition matrix analysis of DNA sequences shows that some measures of complexity based on transition proportion matrix are of interest. We use some measures of complexity to distinguish exon and intron. Regarding the evolution, we find that for species of higher grade, the transition rate among the four kinds of bases goes further from the equilibrium.

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