Table 2 Size distribution of 454 sequencing reads after removal of adaptor sequences
|  | Normalized cDNA library | 3′-UTR library | ||
|---|---|---|---|---|
Read length | Number of reads | % | Number of reads | % |
≤100 bp | 90891 | 8.4 | 30785 | 9.1 |
101–250 bp | 382543 | 35.5 | 89507 | 26.4 |
251–500 bp | 557048 | 51.7 | 177269 | 52.3 |
501–750 bp | 47743 | 4.4 | 41584 | 12.3 |
≥751 bp | 35 | 0.0 | 5 | 0.0 |
Total | 1078260 | 100 | 339150 | 100 |