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Table 2 Distribution of exons exhibiting alternative splice site choice in RefSeq transcripts and in the Exon datasets

From: Exon expression profiling reveals stimulus-mediated exon use in neural cells

Exon position Type of alternative splice choice Percentage in RefSeq database Percentage in KCl exon P value Percentage in TPG exon P value
Initial 5' 24.32 28.14 1.367 × e-03* 27.70 8.081 × e-05*
Initial Alternative start 25.25 27.18 6.386 × e-02* 30.07 6.674 × e-08*
Internal 5' 5.31 8.02 1.179 × e-13* 6.53 4.935 × e-11*
Internal 3' 5.32 8.05 8.393 × e-14* 6.77 9.659 × e-15*
Final Alternative termination 23.43 25.63 1.574 × e-02* 28.55 1.110 × e-16*
Final 3' 22.92 23.27 3.515 × e-01 24.83 7.685 × e-04*
  1. RefSeq exons were classified as exhibiting 5' or 3' alternative splice site choice according their presence in RefSeq transcripts. Constituents of the potassium chloride (KCl) and thapsigargin (TPG) exon datasets were mapped to these definitions. *P values showing statistical significance for enrichment of alternative splice site choice exons at initial, internal, and final positions through a binomial test.