Table 3.

The percent contributions of individual features to the principal components in the between-gene analysis.

Exon features	Comp 1	Comp 2	Comp 3	Comp 4	Comp 5	Comp 6	Comp 7	Comp 8	Comp 9	Comp 10	Comp 11
ASE/CSE exon type	0.003	0.485	0.000	0.005	0.001	0.003	0.000	0.000	0.000	0.000	0.500
Weighted exon frequency (WEF)	0.003	0.483	0.001	0.006	0.000	0.003	0.000	0.000	0.000	0.000	0.500
Average exonic expression level	0.094	0.001	0.409	0.004	0.003	0.003	0.003	0.001	0.481	0.002	0.000
5′ intron length	0.018	0.009	0.002	0.301	0.080	0.058	0.525	0.001	0.000	0.000	0.000
3′ intron length	0.008	0.004	0.003	0.385	0.097	0.035	0.458	0.005	0.008	0.000	0.000
Exon length	0.137	0.006	0.259	0.008	0.071	0.026	0.001	0.050	0.422	0.025	0.000
G+C content	0.000	0.000	0.094	0.207	0.267	0.355	0.004	0.014	0.061	0.014	0.000
Exon duplicability	0.010	0.004	0.006	0.014	0.462	0.480	0.005	0.000	0.000	0.000	0.000
% solvent accessible amino acid residues	0.187a	0.003	0.127	0.062	0.013	0.035	0.001	0.300	0.025	0.248	0.000
% intrinsically disordered regions	0.302	0.003	0.076	0.008	0.005	0.000	0.000	0.006	0.002	0.600	0.000
% Pfam domain	0.237	0.002	0.024	0.000	0.002	0.000	0.002	0.622	0.001	0.109	0.000

Notes:

^aThe numbers larger than 0.2 are color-shaded. The color code in the table is the same as that used in Figure 1.