Table 1. Summary of sequence data used in this paper.
Alpha V segment | Putative # Sub-families | All cloned sequences | Complete CDR3-J junction* | Unique V Region † | Unique V segment‡ | Unique CDR3-J§ | Groups with identical CDR3-J# | CDR3-J groups in Study** | Sequences in each dataset†† | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|
NUC | AA | NUC | AA | NUC | AA | |||||||
TRA V1 | 1 | 40 | 40 | 35 | 34 | 24 | 16 | 34 | 32 | 7 | 4 | 2, 3, 3, 5 |
TRA V2 | 3 | 18 | 18 | 13 | 13 | 13 | 10 | 12 | 12 | 3 | 1 | 5 |
TRA V3 | 3 | 217 | 194 | 55 | 52 | 35 | 34 | 51 | 50 | 5 | 1 | 4 |
TRA V4 | 3 | 60 | 28 | 22 | 22 | 21 | 21 | 21 | 21 | 6 | 2 | 2, 2 |
TRA V5 | 4 | 35 | 34 | 15 | 13 | 9 | 8 | 13 | 13 | 3 | 1 | 2 |
TRA V6 | 2 | 9 | 9 | 7 | 7 | 5 | 6 | 7 | 7 | 1 | 0 | 0 |
TRA V7 | 5 | 96 | 60 | 49 | 48 | 39 | 38 | 48 | 48 | 9 | 2 | 2, 2 |
TRA V9 | 3 | 19 | 19 | 14 | 14 | 12 | 11 | 13 | 13 | 4 | 0 | 0 |
TRA V10 | 2 | 45 | 45 | 29 | 26 | 21 | 19 | 27 | 26 | 10 | 2 | 4, 9 |
539 | 447 | 239 | 229 | 179 | 163 | 226 | 224 | 48 | 13 | 45 |
*A full list of these sequences can be found in Table 1—source data 1.
†V Region includes all bases between the 1 st predicted nucleotide of the V segment to the last predicted nucleotide of the J segment (V and J).
‡V Segment includes all bases between the 1 st predicted nucleotide of the V segment to the last predicted nucleotide of the V segment (V only).
§CDR3-J includes all bases after the last predicted nucleotide of the V segment to the last predicted nucleotide of the J segment.
#Number of groups with identical CDR3-J sequences, which we used to determine sequence relatedness (see text for details).
**Number of groups with identical CDR3-J sequences used in this study. (Those not used contained no mutation with V segments.).
††Total number of sequences for each alpha V used to assess somatic hypermutation within this study (e.g., for aV1, 4 different clonal groups contained 2, 3, 3, and 5 identical CDR3-J regions, respectively).