Skip to main content
. Author manuscript; available in PMC: 2017 Jan 20.
Published in final edited form as: Carbohydr Polym. 2016 Sep 14;156:364–371. doi: 10.1016/j.carbpol.2016.09.037

Table.

1H and 13C NMR assignments of EPS from C. psychrerythraea 34H. Spectra were recorded in D2O at 310K at 600 MHz using acetone as external standard (δHC 2.22/31.5 ppm).

Residue H1 H2 H3 H4 H5 H6
C1 C2 C3 C4 C5 C6
A 5.54 3.87 3.97 4.46 4.28 -
4-α-D-GalpA6LAla(D) 100.9 69.0 69.8 77.9 72.0 170.2
B 4.98 3.63 3.95 4.30 4.90 -
4-α-D-GalpA6LAla(E) 100.8 69.6 70.7 79.4 73.0 171.0
C 4.56 3.74 3.72 3.39 3.37 1.27
3-β-D-QuipNAc 103.5 56.0 81.2 77.7 72.5 18.4

Additional chemical shifts:

NAc: at δ 1.91/24.0 (CH3), 175.9 (CO)

Ala (D): at δ 4.23/52.0 (CH), 1.39/19.2 (CH3), 180.3 (COOH), 7.91 (NH, H2O/D2O)

Ala (E): at δ 4.22/52.2 (CH), 1.42/19.2 (CH3), 181.2 (COOH), 7.70 (NH, H2O/D2O)