Global fractal dimension of human DNA sequences treated as pseudorandom walks.
作者： Cheryl L. Berthelsen , James A. Glazier , Mark H. Skolnick
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摘要: We used a pseudorandom-walk representation in four-dimensional embedding to estimate the global fractal dimension D of 164 sequences from GenBank and generated length-matched control three types: random, matched base content, dimer content. The mean sequence was 1.631±0.137. This significantly ower than D's for all types, indicating presence significant information content DNA not explained by or frequencies. variation due largerly nonuiform distribution bases dimers within
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