Polyadenylation Site Biases Found in Each Category of Tissue (Human)
| Tissue type | Total EST in tissue | Total libraries in tissue | mRNAs with bias in tissue | Total biases in tissue |
| Mixed | 260442 | 8 | 261 | 374 |
| Brain | 156275 | 18 | 127 | 226 |
| Cell-line | 131590 | 12 | 25 | 32 |
| Lung | 128237 | 18 | 83 | 150 |
| Uterus | 126394 | 26 | 115 | 189 |
| Kidney | 85310 | 12 | 65 | 101 |
| Derm | 69317 | 101 | 170 | 457 |
| Placenta | 66530 | 9 | 33 | 57 |
| Colon | 65066 | 56 | 120 | 271 |
| Germinal | 54513 | 3 | 105 | 152 |
| Ovary | 53488 | 16 | 50 | 101 |
| Prostate | 53269 | 37 | 62 | 111 |
| Tonsil | 50932 | 1 | 64 | 91 |
| Testis | 46846 | 5 | 73 | 92 |
| Liver | 43877 | 3 | 51 | 128 |
| Heart | 43011 | 3 | 26 | 34 |
| Breast | 42361 | 70 | 101 | 245 |
| Pancreas | 37381 | 4 | 47 | 66 |
| Stomach | 35909 | 43 | 87 | 175 |
| Muscle | 35232 | 4 | 32 | 40 |
| Fetus | 27045 | 1 | 17 | 19 |
| Bcell | 26995 | 2 | 17 | 40 |
| Nervous | 22838 | 40 | 83 | 234 |
| Parathyroid | 22412 | 1 | 16 | 20 |
| Retina | 21782 | 3 | 7 | 17 |
| Fibroblast | 13151 | 1 | 5 | 5 |
| Lymphatic | 10857 | 1 | 3 | 3 |
| Ear | 8494 | 1 | 7 | 11 |
| Aorta | 7155 | 2 | 17 | 33 |
| Bladder | 6899 | 1 | 1 | 2 |
| Pineal | 6508 | 1 | 1 | 1 |
| Bone | 5619 | 1 | 2 | 2 |
| Urogenital | 5545 | 1 | 1 | 1 |
| Bone-marrow | 5263 | 3 | 7 | 10 |
| Unknown | 5077 | 4 | 8 | 13 |
| Blood | 4910 | 2 | 12 | 33 |
| Esophag | 3695 | 1 | 1 | 1 |
| Smooth-muscle | 3629 | 14 | 24 | 62 |
| Thymus | 3443 | 1 | 3 | 3 |
| Thyroid | 2459 | 1 | 1 | 1 |
| Endothelium | 1908 | 1 | 1 | 5 |
| Embryo | 1392 | 1 | 1 | 1 |
| Larynx | 1096 | 1 | 1 | 1 |
| Wcell | 1011 | 1 | 3 | 4 |
| Adrenal | 411 | 1 | 1 | 1 |
| Spleen | 311 | 1 | 1 | 2 |
| Vein | 48 | 1 | 1 | 2 |
| Total | 1805933 | 538 | 1939 (1438 distinct) | 3619 |