Figure 1. NMR analysis of the lipid A from C. canimorsus wild type.

¹H,¹³C-HSQC spectrum (700 MHz) of lipid A in chloroform-methanol-water (20∶10∶1, v/v/v) at 27°C. The corresponding parts of the ¹³C and ¹H NMR spectra are displayed along the F1 and F2 axes, respectively. Numerals refer to atoms in sugar and acyl chain residues denoted by letters as shown in Supplementary Table 1 and Fig. S2. Signals from an unidentified contaminating lipid are indicated by X.