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ZJUS-B
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology)  2007, Vol. 8 Issue (5): 359-364    DOI: 10.1631/jzus.2007.B0359
Biotechnology     
Scaling behavior of nucleotide cluster in DNA sequences
CHENG Jun, TONG Zi-shuang, ZHANG Lin-xi
Department of Physics, Jinhua College of Profession and Technology, Jinhua 321017, China; Department of Physics, Wenzhou University, Wenzhou 325027, China
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Abstract  In this paper we study the scaling behavior of nucleotide cluster in 11 chromosomes of Encephalitozoon cuniculi Genome. The statistical distribution of nucleotide clusters for 11 chromosomes is characterized by the scaling behavior of P(S)∝e-αS, where S represents nucleotide cluster size. The cluster-size distribution P(S1+S2) with the total size of sequential C-G cluster and A-T cluster S1+S2 were also studied. P(S1+S2) follows exponential decay. There does not exist the case of large C-G cluster following large A-T cluster or large A-T cluster following large C-G cluster. We also discuss the relatively random walk length function L(n) and the local compositional complexity of nucleotide sequences based on a new model. These investigations may provide some insight into nucleotide cluster of DNA sequence.

Key words： Nucleotide cluster      DNA sequences      Scaling behavior     
Received: 27 June 2006     
CLC:  Q615  
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CHENG Jun
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CHENG Jun, TONG Zi-shuang, ZHANG Lin-xi. Scaling behavior of nucleotide cluster in DNA sequences. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2007, 8(5): 359-364.

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http://www.zjujournals.com/xueshu/zjus-b/10.1631/jzus.2007.B0359     OR     http://www.zjujournals.com/xueshu/zjus-b/Y2007/V8/I5/359

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[2] DUPLIJ Diana, DUPLIJ Steven. DNA sequence representation by trianders and determinative degree of nucleotides[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2005, 6( 8): 8-.
[3] CHENG Jun, ZHANG Lin-xi. Statistical properties of nucleotide clusters in DNA sequences*[J]. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2005, 6( 5): 18-.