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Table 1 Partitioning of intron retention events in the human transcriptome according to their relative isoform frequencies (RIF).

From: Sequence features responsible for intron retention in human

RIF group

events

number of cDNA clusters*

number of clusters w/> 1 event of the same RIF**

number of events/cluster

low (< 50% retaining forms)

1515

1114

282

1.4

high (> 50% retaining forms)

250

244

6

1.0

  1. * 53 clusters presented both low and high-RIF events (≥ 2 different retained introns in the same gene)
  2. ** ≥ 2 distinct retained introns in the same gene, see Discussion
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BMC Genomics

ISSN: 1471-2164

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