Genes encoding the T cell receptor (TCR) chains
| TCR gene | Chromosome | V segments | D segments | J segments | C segments |
|---|---|---|---|---|---|
| C, constant; D, diversity; J, joining; V, variable. | |||||
| α (A) | 14q11–12 | 70 | 0 | 61 | 1 |
| β (B) | 7q32–35 | 67 | 2 | 13 | 2 |
| γ (G) | 7p15 | 14 | 0 | 5 | 2 |
| δ (D) | 14q11–12 | 8 | 3 | 4 | 1 |