Table 3 Distribution of mutations in the tumour-derived VH sequences
 |  | Expected | Observed |  | ||
---|---|---|---|---|---|---|
Case | Region | R | S | R | S | P a |
1a | CDR | 2 | 1 | 5 | 0 | Â |
 |  |  |  |  |  | 0.04 |
 | FR | 5 | 2 | 2 | 3 |  |
1b | CDR | 4 | 1 | 7 | 1 | Â |
 |  |  |  |  |  | 0.02 |
 | FR | 8 | 3 | 5 | 3 |  |
2 | CDR | 0 | 0 | 2 | 0 | Â |
 |  |  |  |  |  | 0.10 |
 | FR | 2 | 1 | 1 | 0 |  |
3 | CDR | 2 | 0 | 3 | 0 | Â |
 |  |  |  |  |  | 0.09 |
 | FR | 3 | 1 | 2 | 1 |  |
4 | CDR | 2 | 0 | 2 | 0 | Â |
 |  |  |  |  |  | 0.27 |
 | FR | 3 | 1 | 3 | 1 |  |
5 | CDR | 2 | 0 | 2 | 0 | Â |
 |  |  |  |  |  | 0.30 |
 | FR | 4 | 2 | 4 | 2 |  |