Figure 3. Modification of the pilin subunit with PG by the PptB transferase.
Whole-protein mass spectrometry analysis of type IV pili purified from the wild-type strain (WT) (A), from a strain harboring a S69A mutation in the pilE gene (B), from a strain harboring a S93A mutation in the pilE gene (C), and from a mutant in the NMV_885 gene (ΔpptB) (D). Adapted from Chamot-Rooke et al. 2011[39] with permission.
