Skip to main content
. 2012 Jan 13;287(11):8515–8530. doi: 10.1074/jbc.M111.324012

TABLE 2.

1H and 13C NMR chemical shifts (ppm) of the O-antigen of V. fischeri at 25 °C

Sugar residues 13C/1H (ppm)
1 2 3 4 5 6 7 8 9 NAc NAc
A →8)-α-8eLeg5Ac7Ac-(2→ 176.60 103.01 43.58 71.04 55.36 74.26 56.48 73.79 16.71 24.88a 24.73b
2.75eq 3.51 3.67 3.98 3.89 3.89 1.31 1.92a 2.03b
1.74ax 176.58a 176.35b
B →3)-α-d-GalNAc-(1→ 95.38 50.73 79.37 71.34 73.27 63.31 24.94c
4.96 4.23 3.61 4.16 3.77 3.68 2.01c
3.73 176.95c
C →3)-β-l-FucNAc-(1→ 105.50 54.05 78.50 72.96 73.03 18.26 24.64c
4.38 3.95 3.78 3.72 3.77 1.24 1.95c
176.67c
D →3)-β-l-FucNAc-(1→ 101.24 50.60 76.25 73.59 69.15 18.55 24.78c
5.00 4.15 3.96 4.04 4.07 1.22 2.01c
176.90c
E →4,8)-α-8eLeg5Ac7Ac-(2→ 174.99 105.90 40.51 74.26 52.98 75.25 56.14 74.53 16.98 24.71a 24.60b
2.79eq 3.56 3.79 4.11 3.95 3.82 1.39 1.88a 1.96b
1.54ax 176.55a 176.70b
F α-Yer-(1→4) 95.68 66.92 32.16 77.59 69.83 14.87 71.78d 17.90e
4.89 3.94 1.76eq 4.07 1.08 3.65d 1.15e
1.70ax
G α-Yer-(1→8) 95.75 67.28 32.16 77.59 69.83 14.89 71.78d 17.90e
4.91 3.93 1.76eq 4.07 1.11 3.65d 1.15e
1.68ax

Minor form
A α-8eLeg5Ac7Ac-(2→ 176.17 103.42 43.38 71.24 55.36 75.72 55.67 71.50 21.24 25.03a 24.78b
2.77eq 3.51 3.64 3.94 3.90 4.06 1.22 1.92a 2.01b
1.76ax 176.70a 176.81b

a For 5NAc.

b For 7NAc.

c For 2NAc.

d For the first position of the group attached to the 4th carbon on the sugar ring, i.e. 41 position or the —CHOH– group.

e For the second position of the group attached to the 4th carbon on the sugar ring, i.e. 42 position or the CH3– group.