Table 1.

Percentage of dual splice sites conforming to the AG|GU rule.

Site	All	AG|GU sites
5′ splice site	27,556	15,455 (56.1%)
3′ splice site	27,556	5,022 (18.2%)
dual site	594	155 (26.1%)
dual site.2	85	46 (54.1%)
dual site.3	40	28 (70.0%)
dual site.singleton	319	119 (37.3%)
dual site.singleton.2	39	31 (79.5%)
dual site.singleton.3	26	23 (88.5%)

dual site.2 (dual site.3), dual splice sites with two (three) or more supporting transcripts for each isoform; dual site.singleton, singleton dual splice sites (no other dual splice sites from the same gene). dual site.singleton.2 and dual site.singleton.3 are similarly defined.