Table 4.
ppm Values for 1H HR-MAS NMR spectra for NCTC11168 variants and MeOPN transferase status.
| C. jejuni strain | Hepa | Rib | GlcA | GalfNAc | 3-O-Me | 6-O-Me | NAc | MeOPN | cj1421/cj1422 (GalfNAc/Hep)b |
|---|---|---|---|---|---|---|---|---|---|
| NCTC11168 MP24 | 5.582 | 5.376 | 5.103 | 5.015 | 3.629 | 3.557 | 2.071 | 3.772 | −/+ |
| NCTC11168 MP25 | 5.599 | 5.363 | 5.148 | 5.039 | – | 3.569 | 2.066 | - (3.772)c | −/− |
| NCTC11168 MP26 | 5.610 | 5.361 | 5.143 | 5.101 | 3.630 | – | 2.068 | 3.768/3.743 | +/+ |
aOnly anomeric proton resonances for carbohydrate residues are listed.
bSummary of sequencing results indicating the “on” (+) and “off” (−) status of the genes encoding the MeOPN transferases onto GalfNAc (cj1421) and Hep (cj1422).
cOnly trace amounts of MeOPN detected.