The tilt in the TM helices is shown for each of the open-state models as well as the magnitude of structural change required to move from the closed state to each open state
| Model | Tilt TM1 | Tilt TM2 | RMSD in subunit | RMSD in pentamer |
| Å | Å | |||
| Closed | 37.2 | 34.4 | ||
| 0 dyn/cm | 52.5 | 39.0 | 8.1 | 11.5 |
| 5 dyn/cm | 56.3 | 42.4 | 9.9 | 12.0 |
| 60 dyn/cm | 59.8 | 47.0 | 8.9 | 12.7 |
| Meyer (32) | 51.2 | 54.5 | 12.6 | 17.7 |
| Sukharev (27) | 71.5 | 56.3 | 9.5 | 33.2 |
| Model | Tilt TM1 | Tilt TM2 | RMSD in subunit | RMSD in pentamer |
| Å | Å | |||
| Closed | 37.2 | 34.4 | ||
| 0 dyn/cm | 52.5 | 39.0 | 8.1 | 11.5 |
| 5 dyn/cm | 56.3 | 42.4 | 9.9 | 12.0 |
| 60 dyn/cm | 59.8 | 47.0 | 8.9 | 12.7 |
| Meyer (32) | 51.2 | 54.5 | 12.6 | 17.7 |
| Sukharev (27) | 71.5 | 56.3 | 9.5 | 33.2 |
The structural change is determined by aligning either a single subunit to a subunit in the closed structure, or the whole pentamer to the closed pentameric structure, and presented as a root mean-square deviation (RMSD).