Table 2 The secondary structure and orientation of helix, beta sheet and lipid acyl chain of FP, TMD and FP/TMD 1:1 complex in DMPC:DMPG 1:1 vesicular solution with L/P = 50 at pH 5.0. Values were obtained by averaging three or four sets of data.
| Â | Lipid | FP | TMD | Complex |
|---|---|---|---|---|
Secondary structure | Â | Â | Â | Â |
   α-helix (%) |  | 26 ± 3 | 64 ± 1 | 46 ± 7 |
   β-sheet (%) |  | 55 ± 5 | 20 ± 2 | 28 ± 1 |
   Unordered (%) |  | 9 ± 3 | --- | 9 ± 8 |
   β-turns (%) |  | 11 ± 3 | 17 ± 4 | 17 ± 3 |
Helix axis orientation | Â | Â | Â | Â |
    R ATR |  | 1.82 ± 0.01 | 2.46 ± 0.22 | 2.07 ± 0.08 |
   Θ (°) |  | 60 ± 1 | 34 ± 1 | 49 ± 2 |
Beta-strand orientation | Â | Â | Â | Â |
    R ATR |  | 1.18 ± 0.10 | N.A. | 1.28 ± 0.20 |
   Φ (°) |  | 56 ± 5 | N.A. | 52 ± 7 |
Acyl chain tilt angle | Â | Â | Â | Â |
    R ATR | 1.09 ± 0.09 | 1.78 ± 0.45 | 1.31 ± 0.04 | 1.62 ± 0.12 |
   δ (°) | 27 ± 4 | 49 ± 12 | 36 ± 1 | 45 ± 4 |