Table 3 Parameters derived from the SUP sequence representation

Number of bases in single-stranded region

Number of bases in double-stranded region

Percentage of bases in single-stranded region to the length of ODN

Percentage of bases in double-stranded region to the length of ODN

Maximum length of consecutive subsequence in single-stranded region

Maximum length of consecutive subsequence in base pairing

Maximum length of consecutive subsequence in single-stranded region counting from 5' terminal

Maximum length of consecutive subsequence in base pairing counting from 5' terminal

Maximum length of consecutive subsequence in single-stranded region counting from 3' terminal

Maximum length of consecutive subsequence in base pairing counting from 3' terminal

Structure consistency, $f_{SC}=\frac{1}{n-1}{\displaystyle \sum _{i=1}^{n-1}E(S_i,S_{i-1})}$, where $E(x,y)=\{\begin{array}{ll}1,\hfill & x=y\ne \text{'}\text{U}\text{'}\hfill \\ 0,\hfill & x=\text{'}\text{U}\text{'},ory=\text{'}\text{U}\text{'}\hfill \\ \text{-1}\hfill & x\ne y,x\ne \text{'}\text{S}\text{'},y\ne \text{'}\text{P}\text{'}\hfill \end{array}$