Table 1.
Nucleotide Content Differences (%) for Introns >2047 nt Versus Introns 60–127 nt Long
|
|
|
D − 32 to D − 1 |
D+1 to D+32 |
A − 32 to A − 1 |
A+1 to A+32 |
|---|---|---|---|---|---|
| Intron before | A | 1.99 | 1.62 | −1.75 | 2.48 |
| C | −0.93 | −0.36 | −0.57 | −0.24 | |
| G | −1.59 | −0.72 | −0.59 | −2.11 | |
| U | 0.54 | −0.54 | 2.91 | −0.13 | |
| Varied intron | A | 2.32 | 0.42 | −4.31 | 1.00 |
| C | −0.57 | 0.39 | 1.26 | 0.40 | |
| G | −0.92 | 0.51 | −0.54 | −0.62 | |
| U | −0.83 | −1.33 | 3.59 | −0.78 | |
| Intron after | A | −0.33 | 1.11 | −1.61 | −0.71 |
| C | 1.31 | −0.68 | 1.75 | 1.14 | |
| G | 0.02 | 0.67 | −0.24 | 0.32 | |
|
|
U
|
−1.00
|
−1.11
|
0.10
|
−0.76
|
-
Bold difference values have p > 0.99 significance by a two-tailed t-test using the observed standard deviations in nucleotide content over the 32-nt ranges. These differences were also significant by the non-parametric Mann-Whitney test, which also showed the increase in U for the varied intron (D − 32 to D − 1) to be significant (p > 0.99).
