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Abbreviations and descriptions for backbone sets used in design calculations.
| Set Name | Starting Structure | Modes fixed to 0 | Modes fixed to Native |
|---|---|---|---|
| X-set | Native helix | None | All |
| I-set | Ideal helix | All except 1 and 2 | none |
| N-set | Native helix | None | All except 1 and 2 |
| Ip-set | Ideal helix | All except 1, 2 and 10 | 10 |
