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Table 2 Summary of selected features analyzed for A5Es with competitive donors (A) and A5EΔ4 splicing exons with tandem donors (B), separated into major (PΔ4, DΔ4) and minor (dΔ4, pΔ4) splice forms.

From: Comparative analysis of sequence features involved in the recognition of tandem splice sites

A)     
Features of A5Es P Δ(major-form) d Δ(minor-form) D Δ(major-form) p Δ(minor-form)
Number of occurrences 872 598
   in-frame (major-form) 410 (47%) 257 (43%)
   out-of-frame (minor-form) 462 (53%) 341 (57%)
Mean extension length (nucleotides) 82 119
Mean core length (nucleotides) 189 107 126 245
Transcript coverage 3,603/19,709 324/924 2,186/13,126 330/556
Average MAXENT score 7.5 -0.5 6.8 4.6
B)     
Features of A5EΔ4 exons P Δ4 (major-form) d Δ4 (minor-form) D Δ4 (major-form) p Δ4 (minor-form)
Number of occurrences 44 118
Extension length (nucleotides) 4 4
Mean core length (nucleotides) 126 122 119 123
Transcript coverage 159/619 20/46 531/7,000 15/144
Average MAXENT score 7.5 2.8 7.9 -3.9