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Table 2 Classification of GenBank ESTs with respect to their genome mapping coordinates in relation to the set of non-redundant spliced RefSeq sequences

From: Genome mapping and expression analyses of human intronic noncoding RNAs reveal tissue-specific patterns and enrichment in genes related to regulation of transcription

  EST clusters with overlap to exons of RefSeq genes* EST clusters wholly intronic to RefSeq genes EST clusters mapped outside of RefSeq genes Total
Spliced EST contigs 16,241 8,013 10,144 34,398
Number of exons of spliced EST contigs (median) 10 2 3  
Total number of spliced ESTs in contigs 3,616,644 162,841 241,049 4,020,534
Number of spliced ESTs per contig (median) 91 3 4  
Unspliced EST contigs 4,030 55,139 29,198 88,367
Total number of unspliced ESTs in contigs 56,752 190,583 140,091 387,426
Number of unspliced ESTs per contig (median) 4 2 2  
Spliced EST singlets 1,053 6,205 6,631 13,889
Unspliced EST singlets 3,539 121,091 71,662 196,292
Total non-redundant EST clusters (contigs + singlets) 24,863 190,448 117,635 332,946
Total ESTs 3,677,988 480,720 459,433 4,618,141
  1. *The reference dataset comprises 15,783 spliced non-redundant RefSeq units plus the evidence of additional splice variants obtained for each transcriptional unit from all mRNA sequences mapping to the same locus.