Table 1.
Coiled-coil parameters for the classified transmembrane α-helical barrels. For each PDB code, the category is given along with the number of helices in the central barrel. The coiled-coil parameters [44] are given for each structure in Classes 1–3.
| PDB code | class | no. helices | radius (Å) | alpha ( ° ) | pitch (Å) |
|---|---|---|---|---|---|
| 2J58 | 1 | 8 | 14.82 ± 0.65 | 33.50 ± 0.89 | 140.71 |
| 3UQ4 | 2 | 5 | 8.26 ± 0.36 | 11.22 ± 2.25 | 261.65 |
| 4EV6 | 2 | 5 | 8.27 ± 1.21 | 22.15 ± 4.64 | 127.61 |
| 4HKR | 2 | 6 | 9.24 ± 0.12 | 1.76 ± 1.25 | 1892.69 |
| 4HW9 | 2 | 6 | 11.72 ± 0.45 | 21.45 ± 3.90 | 187.48 |
| 4BEM | 2 | 11 | 12.86 ± 0.78 | 2.56 ± 1.86 | 1805.40 |
| 4QND | 3 | 6 | 10.36 ± 1.00 | 60.50 ± 1.54 | 36.82 |
| 4C9 J | 4 | 6 | — | — | — |
| 4IL3 | 4 | 7 | — | — | — |
| 4CAD | 4 | 8 | — | — | — |