Distribution of Alu Pairs with Long Alignment Regions (>275 bp) According to Orientation, Separation Distance, and Sequence Identity
| Orientation of paired Alus | Distance between aligned regions (b + c) (bp) | Frequency of Alupairs | |||
| degree of identity between pairedAlus | |||||
| 91%–100% (No.) | 81%–90% (%) | 71%–80% (%) | 60%–70% (%) | ||
| Inverted | |||||
| DC | 0–20 | (0) | 1.0 | 2.6 | 3.6 |
| Total: 5786 | 21–40 | (1) | 3.0 | 4.2 | 4.3 |
| 41–60 | (0) | 3.3 | 4.6 | 5.0 | |
| 61–80 | (0) | 3.6 | 4.0 | 5.1 | |
| 81–100 | (2) | 2.7 | 4.3 | 4.8 | |
| >100 | (6) | 86.3 | 80.4 | 77.3 | |
| (Total) | (9) | (1916) | (3255) | (606) | |
| CD | 0–20 | (0) | 0.1 | 0.5 | 0.5 |
| Total: 5948 | 21–40 | (0) | 7.6 | 7.5 | 9.3 |
| 41–60 | (2) | 4.4 | 4.8 | 6.8 | |
| 61–80 | (0) | 3.5 | 5.2 | 5.1 | |
| 81–100 | (1) | 3.8 | 3.5 | 5.0 | |
| >100 | (4) | 80.6 | 78.5 | 73.5 | |
| (Total) | (7) | (1996) | (3354) | (591) | |
| Direct | |||||
| (DD + CC) | 0–20 | (11) | 24.3 | 22.2 | 20.9 |
| Total: 18,253 | 21–40 | (3) | 7.4 | 8.3 | 9.3 |
| 41–60 | (2) | 3.9 | 3.8 | 4.7 | |
| 61–80 | (2) | 3.3 | 3.6 | 3.4 | |
| 81–100 | (1) | 2.9 | 3.2 | 4.0 | |
| >100 | (18) | 58.3 | 58.9 | 57.8 | |
| (Total) | (37) | (6205) | (10,251) | (1760) | |