Characterization of flgK gene and FlgK protein required for H pylori Colonization-from cloning to clinical relevance

Figure 3 The electron microscopy disclosed wild-type H pylori had full-length sheathed flagella (A), which was not observed in the flgK mutant (B). In vitro motility testing disclosed halos of wild-type strain (C), whereas the mutant was without halo (D). An evident halo (arrows) indicated a poorer inhibition of the motility of wild-type H pylori by adding 1:200 anti-r-FlgK polyclonal antibody (F) than by adding 1:50 of the antibody (E).