Physics – Biological Physics
Scientific paper
2001-01-16
Physics
Biological Physics
14 pages, LaTex
Scientific paper
The presence of low dimensional chaos in the protein secondary structures, using the binary coded $\alpha$-helices and $\beta$-sheet motifs, has been investigated. In order to analyse symbolic DNA/RNA sequences the assignment, based on the purine/pyrimidine and strong/wea k H - bond classification sheme, of binary numbers to the nucleotides was made. We have found that this assignment leads to different averaged fractal dimensions for $\alpha$-helices and $\beta$-sheets. When embedded in the two dimensional phase space the binary string structures show the attractor type behavior which depends on the value of the time lag parameter.
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