Table 2.
1H and 13C NMR chemical shifts [δ; ppm] of the O. carboxidovorans OM5 lipid A backbone.
| Spin System |
1J(C-1,H-1) [Hz] |
H-1 C-1 |
H-2 C-2 |
H-3 C-3 |
H-4 C-4 |
H-5 C-5 |
H-6; H-6’ C-6 |
|---|---|---|---|---|---|---|---|
| A, α-d-GalpA-(1→ | 173.8 | 5.248 | 3.96 | 4.08 | 4.333 | 4.55 | - |
| 94.24 | 68.62 | 69.13 | 70.34 | 71.3 | 171.5 | ||
| B, →6)-α-d-GlcpN3N-(1→ | 171.8 | 5.053 | 4.059 | 4.255 | 3.375 | 4.078 | 3.710; 3.710 |
| 92.57 | 51.65 | 52.23 | 68.73 | 72.48 | 68.7 | ||
| C, →4)-β-d-GlcpN3N-(1→ | 161.1 | 4.395 | 3.816 | 4.027 | 3.825 | 3.427 | 3.773; 3.812 |
| 102.69 | 54.1 | 53.41 | 75.22 | 76.94 | 61.24 | ||
| D, α-d-GalpA-(1→ | 170.6 | 5.189 | 3.796 | 3.773 | 4.316 | 4.446 | - |
| 100.02 | 68.68 | 68.74 | 70.15 | 71.46 | 170.5 |