Table 4 Vsp gene patterns
From: The Giardia lamblia vsp gene repertoire: characteristics, genomic organization, and evolution
Pattern | All vsp s | Complete sequences only |
|---|---|---|
Inverted identical pairs | 14 pairs | Â |
   Head to head |    4 | 4 |
   Tail to tail |    10 | 10 (17 genes, but 3 of the paired members were incomplete) |
Other head to head | 10 (5 pairs) | 10 (5 pairs) |
Other tail to tail | 4 (2 pairs) | 3 (2 pairs) |
Linear array | 164 | 99 |
Overlapping linear array | 5 | 5 |
Total vsp genes | 303 | 228 |