Zhang and  Chasin: July 6, 2007												previously published
		Length	PESE/exon (50-250)	PESE/nt	PESS/exon (50-250)	PESS/nt		pese/ 127 nt	pess/ 127 nt	ave. pese/ ave. pess		pese/ 127 nt	pess/ 127 nt	ave. pese/ ave. pess
Constitutive	Ave	126.7	8.9	0.070	1.7	0.014		8.9	1.8	5.1		9.5	1.7	5.5
50-250 nt	SD	45.6	6.5	0.046	2.4	0.019
n=114,450	Median	121	8	0.063	1	0.008
Skipped	Ave	119.0	7.4	0.062	1.6	0.014		7.9	1.8	4.4		7.3	2.0	3.6
50-250 nt	SD	45.1	5.7	0.043	2.3	0.020
n=11,470	Median	112	6	0.055	1	0.007
Pseudo exons	Ave	142.2	5.3	0.037	6.7	0.047		4.7	6.0	0.8		4.0	6.3	0.6
50-250 nt	SD	53.9	4.6	0.030	6.4	0.043
n=92589	Median	140	4	0.031	5	0.037
PESE/PESS sets = corrected compared to those used in original publication See Web site and links: http://cubweb.biology.columbia.edu/pesx/
All datasets are repeat-free (RepeatMasker masked).
Pseudo exons have consensus value scores  (Zhang et al., Methods, 2005. Methods 37: 292-305)  of >= 75 and 78 for 3' and 5' splice sites, respectively.
Constitutive exons include ESTs that must bounded by flanking exons in mRNA sequence).  Even those occuring only once have been included.