Table 2.

Sequence features characteristic of the TSCs of each category

The numbers and frequencies of TSCs that fell within the indicated criteria are shown. The definitions for CpG islands and the evolutionary conservation scores are the same as those described in hg18. The frequencies of TSCs located in the 5′-UTR and relative positions within the ORFs, where the N terminus is defined as 0% and the C terminus is 100%, are shown in the sixth and seventh columns, respectively. The definitions of the ORFs are also the same as described in hg18. For details of the computational procedures, see the Methods section. Statistical significances of the differences between populations indicated by asterisks were evaluated by the Wilcoxon signed rank test (*1–6) or the proportion test (*a–i), and are shown in the margin.

^*1p < 1×10⁻²⁰⁰, ^*2p < 1×10⁻²⁰⁰, ^*3p < 1×10⁻²⁰⁰, ^*4p < 1×10⁻²⁰⁰, ^*5p < 1×10⁻²⁰⁰, ^*6p < 1×10⁻²⁰⁰.

^*ap = 1×10⁻¹⁷⁰, ^*bp = 1×10⁻¹⁹³, ^*cp < 1×10⁻²⁰⁰, ^*dp < 1×10⁻²⁰⁰, ^*ep < 1×10⁻²⁰⁰, ^*fp < 1×10⁻²⁰⁰, ^*gp < 1×10⁻²⁰⁰, ^*hp = 1×10⁻¹⁰, ^*ip = 1×10⁻²⁴.