Table 4.
Average Number of Poly(A) Sites with Each Type of Polyadenylation Signal, per mRNA Molecule
| Number of poly(A) sites per mRNA | 1 | 2 | 3 | 4+ | |
 sites per mRNA
1
2
3
4+
0.661.001.301.590.140.310.580.690.020.080.130.150.020.080.160.200.010.020.050.070.010.030.040.100.010.050.050.200.010.030.040.050.000.020.040.100.010.010.020.080.010.030.010.070.010.020.040.070.080.310.521.164.73.22.22.3/embed/graphic-6.gif)
| 0.66 | 1.00 | 1.30 | 1.59 | |
| 0.14 | 0.31 | 0.58 | 0.69 | ||
| 0.02 | 0.08 | 0.13 | 0.15 | ||
| 0.02 | 0.08 | 0.16 | 0.20 | ||
| 0.01 | 0.02 | 0.05 | 0.07 | ||
| 0.01 | 0.03 | 0.04 | 0.10 | ||
| 0.01 | 0.05 | 0.05 | 0.20 | ||
| 0.01 | 0.03 | 0.04 | 0.05 | ||
| 0.00 | 0.02 | 0.04 | 0.10 | ||
| 0.01 | 0.01 | 0.02 | 0.08 | ||
| 0.01 | 0.03 | 0.01 | 0.07 | ||
| 0.01 | 0.02 | 0.04 | 0.07 | ||
| 0.08 | 0.31 | 0.52 | 1.16 | ||
| 4.7 | 3.2 | 2.2 | 2.3 | ||