Long-Range Heterogeneity at the 3′ Ends of Human mRNAs

Table 1.

Statistics on the Generation of 3′ Tags

Total no. of human trace files 2,440,000
Total no. of tags with poly(A) 1,059,193
Unique tags with poly(A) 508,019
Filtered tags (removes repeats, mitochondrial  and low complexity) 455,754
Unique genome linked tags (including  downstream sequence) 248,017
Unique tags matching the genome (excluding  downstream sequence) 196,056
Unique tags with a trusted match to the genome 141,548
Genome-matched tag clusters 152,308
Trusted genome-matched tag clusters 95,787
  • This number includes 158,794 tags with exact matches, 46,156 tags that differ by one or two nucleotides from this first set, and 43,067 that independently find inexact matches on the genome.

  • Trusted tags are those that do not contain a downstream poly(A) or poly(G).

This Article

  1. Genome Res. 12: 1068-1074

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