Long-range correlation measures for quantifying patchiness: Deviations from uniform power-law scaling in genomic DNA

G. M. Viswanathan, S. V. Buldyrev, S. Havlin, H. E. Stanley

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

We introduce and develop new techniques to quantify DNA patchiness, and characteristics of their mosaic structure. These techniques, which involve calculating two functions, α(ℓ) and β(ℓ), measure correlation exponents at length scale ℓ and detect distinct characteristic patch sizes embedded in scale invariant patch size distributions. Using these methods, it is possible to address a number of issues relating to the mosaic structure of genomic DNA. We find several distinct characteristic patch sizes in yeast, human, and prokaryotic sequences. We also find that the distinct patch sizes in all 16 yeast chromosomes are similar.

Original languageEnglish
Pages (from-to)581-586
Number of pages6
JournalPhysica A: Statistical Mechanics and its Applications
Volume249
Issue number1-4
DOIs
StatePublished - 2 Jan 1998

Keywords

  • DNA
  • Long-range correlations

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