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[i] |
| Unique tags matching the genome (excluding downstream sequence) | 196,056 |
| Unique tags with a trusted match to the genome[ii] | 141,548 |
| Genome-matched tag clusters | 152,308 |
| Trusted genome-matched tag clusters | 95,787 |
[i] 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.
[ii] Trusted tags are those that do not contain a downstream poly(A) or poly(G).