Table 1.
Chemical shifts of the E. anguillarum 205/03 core oligosaccharide (OSVII).
| Residues | Chemical Shifts (ppm) | |||||||
|---|---|---|---|---|---|---|---|---|
| H1/C1 | H2/C2 | H3(H3ax,eq)/C3 | H4/C4 | H5/C5 | H6,6’/C6 | H7,7’/C7 | H8,8’/C8 (NAc) |
|
|
A →5)-Kdo |
nd | 97.6 | 1.95, 2,32 34.6 |
4.19 66.3 |
4.25 75.3 |
3.77 69.8 |
3.92 66.7 |
3.70, 3.89 64.4 |
|
B →3,4)-L-glycero-α-D-manno-Hepp-(1→ |
5.17 101.3 |
4.14 69.8 |
4.32 75.0 |
4.31 74.2 |
4.25 71.9 |
4.15 70.2 |
3.82 63.7 |
|
|
C β-D-Glcp-(1→ |
4.55 103.3 |
3.38 74.4 |
3.51 76.3 |
3.49 69.9 |
3.45 76.5 |
3.86, 3.89 62.0 |
||
|
D →2,3,7)-L-glycero-α-D-manno-Hepp-(1→ |
5.44 99.6 |
4.34 78.5 |
4.11 80.0 |
4.11 66.6 |
3.69 73.3 |
4.28 69.3 |
3.63, 4.01 73.3 |
|
|
E →7)−L-glycero-α-D-manno-Hepp-(1→ |
4.97 103.4 |
4.05 71.1 |
3.95 72.3 |
3.93 71.4 |
3.72 73.4 |
4.23 69.5 |
3.69, 3.88 72.0 |
|
|
F →4)-α-D-GalpA-(1→ |
5.42 99.4 |
4.09 70.0 |
4.20 68.5 |
4.62 77.6 |
4.44 70.4 |
176.5 |
||
|
G α-D-GlcpN-(1→ |
5.27 95.5 |
3.36 55.4 |
4.00 70.4 |
3.65 68.3 |
4.14 73.3 |
3.68, 3.95 60.4 |
||
|
H β-D-Glcp-(1→ |
4.63 103.1 |
3.40 74.8 |
3.56 71.3 |
3.33 71.3 |
3.62 76.4 |
3.67, 3.92 62.0 |
||
|
I →4)-α-D-GalpA-(1→ |
5.42 102.5 |
3.92 69.9 |
4.29 72.2 |
4.48 80.9 |
4.63 72.4 |
175.5 |
||
|
J α-D-GlcpN-(1→ |
5.29 97.2 |
3.39 55.6 |
3.98 70.6 |
3.63 70.5 |
4.28 72.5 |
3.70, 3.98 62.5 |
||
|
K →3)-α-D-GlcpNAc-(1→ M β-D-Galp-(1→ |
5.20 99.6 4.53 103.7 |
4.27 51.5 3.61 71.3 |
3.78 75.4 3.79 72.2 |
3.64 71.1 3.90 71.2 |
4.03 71.3 3.59 75.3 |
3.82, 3.85 60.1 3.73, 3.77 63.1 |
2.13 22.7, 175.7 |
|
|
Gly |
168.2 |
3.92, 4.07 41.8 |
||||||
ax, axial position; eq, equatorial position. nd, not detected.