Non-extensive trends in the size distribution of coding and non-coding DNA
sequences in the human genome |
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Authors: | Th Oikonomou A Provata |
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Institution: | (1) Institute of Physical Chemistry, National Center for Scientific Research “Demokritos”, 15310 Athens, Greece;(2) Department of Biological Chemistry, University of Athens, School of Medicine, Goudi, 11527 Athens, Greece |
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Abstract: | We study the primary DNA structure of four of the most completely
sequenced human chromosomes (including chromosome 19 which
is the most dense in coding), using non-extensive statistics. We show that
the exponents governing the spatial decay of the
coding size distributions vary between
5.2 ≤r ≤5.7 for the short scales and 1.45 ≤q ≤1.50
for the large scales. On the contrary,
the exponents governing the spatial decay of the non-coding size distributions
in these four chromosomes, take the values
2.4 ≤r ≤3.2 for the short scales and 1.50 ≤q ≤1.72
for the large scales.
These results,
in particular the values of the tail exponent q, indicate the existence of
correlations in the coding and non-coding size
distributions with tendency for higher correlations
in the non-coding DNA. |
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Keywords: | 89 75 Fb Structures and organization in complex systems 89 75 Da Systems obeying scaling laws 87 14 Gg DNA RNA |
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