TABLE 1.
Spliceosomal snRNA pseudogenes in the human, mouse, and rat genomes
| Human | Mouse | Rat | |
| U1 | 86 | 60 | 58 |
| U2 | 41 | 17 | 35 |
| U4 | 61 | 24 | 122 |
| U5 | 20 | 11 | 11 |
| U6 | 190 | 202 | 202 |
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