From: Revisiting the evolution of mouse LINE-1 in the genomic era
 |  | PARRIS | GABranch | Positively selected sites | ||
---|---|---|---|---|---|---|
ORF | Regions | Mean dN/dS | Number of branches with positive selection | SLAC | FEL | REL |
ORF1 | 5' terminus | 0.494 ± 0.275 | 0 | 0 | 0 | 0 |
 | Coiled coil | 0.608 ± 0.401 | 0 | 0 | 0 | 8,089 |
 | 3' terminus | 0.354 ± 0.371 | 0 | 0 | 0 | 348,351 |
ORF2 | 5' terminus (1–1,170) | 0.308 ± 0.411 | 0 | 0 | 0 | 0 |
 | 3' terminus (1171-end) | 0.229 ± 0.353 | 0 | 0 | 445,945 | 0 |