Table 1.

1H shift NMR data for the exotoxin in CD3OD at 300°Ka

Moiety of exotoxinbAtomShift (ppm)
AH-14.93
H-24.01
H-33.70
H-43.42
H-53.72
H-61.29
BH-14.95
H-23.76
H-33.83
H-43.30
H-53.69
H-61.28
CH-2A2.58
H-2B2.50
H-34.15
H-41.59
H-(5–13)c 1.36
H-140.94
DH-2A2.51
H-2B2.51
H-35.37
H-41.64
H-(5–13)c 1.36
H-140.94
  • a Sequential ROEs were observed between H-1 of moiety A and H-2 of moiety B and between H-1 of moiety B and H-3 of moiety C.

  • b The moieties of the exotoxin, Rha-Rha-C14-C14, are as follows: A, the first rhamnose; B, the second rhamnose; C, the first C14sequence; and D, the second C14 sequence.

  • c All methylene group signals form C5 to C13.