Table 2.

1H and 13C NMR chemical shifts for the LPS O-PS of A. actinomycetemcomitansCU1000a

Glycose unitChemical shift (ppm) (coupling constant [Hz]) for:
H-1 ( J1,2)H-2 ( J2,3)H-3 ( J3,4)H-4 ( J4,5)H-5H-6 ( J5,6)C-1 ( JC1-H1)C-2C-3C-4C-5C-6
-2)-α-l-Rhap-(1- (A)5.222 (∼1)4.021 (∼4)3.842 (9.4)3.527 (9.3)3.7381.342 (3.9)101.28 (174)78.9370.8873.2470.1617.66
2,3-)-α-l-Rhap-(1- (B)5.123 (2.2)4.249 (4.5)3.904 (9.4)3.513 (9.3)3.6921.256 (4.3)102.34 (175)78.4476.3673.4570.3717.33
β-d-GalpNAc-(1- (C)4.550 (7.3)3.863 (9.5)3.805 (∼4)3.933 (∼1)3.6663.760103.99 (161)53.4471.0368.5775.6461.80
  • a Chemical shifts were recorded at 30°C.