| 15 transmembrane subunits |
| A - Tilt: 20° - Segments: 1(18-44) |
| B - Tilt: 20° - Segments: 1(18-44) |
| C - Tilt: 20° - Segments: 1(18-44) |
| D - Tilt: 20° - Segments: 1(18-44) |
| E - Tilt: 20° - Segments: 1(18-44) |
| F - Tilt: 19° - Segments: 1(30-49) |
| G - Tilt: 19° - Segments: 1(30-49) |
| H - Tilt: 19° - Segments: 1(30-49) |
| I - Tilt: 19° - Segments: 1(30-49) |
| J - Tilt: 19° - Segments: 1(30-49) |
| K - Tilt: 18° - Segments: 1(41-49) |
| L - Tilt: 18° - Segments: 1(41-49) |
| M - Tilt: 18° - Segments: 1(41-49) |
| N - Tilt: 18° - Segments: 1(41-49) |
| O - Tilt: 18° - Segments: 1(41-49) |