Table 2 1H and 13C chemical shift assignments of the sample SD2 recorded in D2O at 500 MHz and 70 °C

From: Bacillus subtilis EpsA-O: A novel exopolysaccharide structure acting as an efficient adhesive in biofilms

Residue

Nucleus

Chemical shifts (ppm) a

1

2

3

4

5

6

D

1H

4.53

3.49

4.20

4.15

4.02

3.90

β-d-Galp-3,4 Pyr-(1

13C

103.3

74.2

79.5

75.6

74.0

61.7

E

1H

4.46

3.49

4.20

4.15

4.22

4.19 – 4.02

6)-β-d-Galp 3,4 Pyr(1

13C

103.1

74.2

79.5

75.6

73.0

69.8

Pyr S

1H

  

1.60

   
 

13C

177.9

108.7

24.3

   
  

H1’a

H1’b

H2

H3’a

H3’b

 

1-Gro

1H

3.99

3.70

3.94

3.68

3.60

 
 

13C

72.0

72.0

71.6

63.4

63.4

 
  1. aChemical shifts are given relative to internal acetone (2.225 ppm for 1H and 31.07 ppm for 13C).