Figure 2
Distributions of ISI values of (from left to right) (G a VS. G 0 ), (G s VS. G 0 ), and (G v VS. G 0 ) for (A) human and (B) mouse. The numbers in the parentheses following G0 indicate the median distances of the uAUGs from 5' cap in terms of percentage of 5'UTR length in the non-G0 transcripts. These proportions of length are referenced to determine which G0 distributions to use in the comparisons. The P values of pair-wise differences (calculated by using the Mann-Whitney U test) are shown at the top. The symbols "*", "**", and "***" represent 0.01 ≦ P < 0.05, 0.001 ≦ P < 0.01, and P < 0.001, respectively.