TABLE 2.
| Characteristic | VL domain | VH domain |
|---|---|---|
| CDR length (amino acids) | ||
| CDR1 | 17 | 5 |
| CDR2 | 7 | 17 |
| CDR3 | 9 | 18 |
| Germ line counterpart | B3, JK4 | VH3-30, D3-22, JH5 |
| V gene mutations (amino acids) | ||
| Replacement | 11 | 21 |
| Silent | 11 | 13 |
| Replacement/silent, CDRs | 7/4 | 6/3 |
| Replacement/silent, FRs | 4/7 | 15/10 |
| Junctional mutations (nucleotides) | ||
| Deletion | 3 | 11 |
| Insertion | 0 | 15 |
| Replacement | 0 | 13 |
V gene amino acid mutation analysis does not include VL or VH domain CDR3. Junctional mutations refer to nucleotide mutations at the VL domain V-J junction and at the VH domain V-D and D-J junctions. Corresponding amino acid mutations are shown in Fig. 3. Mutations located at 3′ end of the J gene (well beyond the D-J junction) are not included.