Table 3.
Distribution of Repetitive Elements
| Repeat | Number of elements (% of human sequence) | Number of elements (% of mouse sequence) |
| SINES | ||
| Alu | 130 (4.68%) | |
| B1s | 61 (1.93%) | |
| B2–B4 | 86 (3.78%) | |
| ID | 8 (0.16%) | |
| MIRs | 67 (1.29%) | 9 (0.27%) |
| LINEs | ||
| LINE1 | 142 (12.90%) | 83 (16.35%) |
| LINE2 | 78 (3.64%) | 17 (0.56%) |
| LTR elements | ||
| MaLRs | 81 (5.09%) | 62 (4.80%) |
| Retroviral | 30 (2.40%) | 19 (4.14%) |
| MER4_group | 29 (2.69%) | 1 (0.06%) |
| DNA elements | ||
| MER1_type | 32 (0.88%) | 9 (0.46%) |
| MER2_type | 12 (0.94%) | 1 (0.05%) |
| Mariners | 2 (0.04%) | 0.00 |
| Small RNA | 3 (0.03%) | 4 (0.07%) |
| Simple Repeats | 141 (1.58%) | 86 (1.42%) |
| Low complexity | 47 (0.50%) | 35 (0.60%) |
