Figure 10.
IglC secretion promoted by F. novicida ΔiglE expressing various IglE mutants in trans, including (A) lipobox- and frameshift mutants, (B) deletion mutants, and (C) substitution mutants within the region overlapping with FS4. Indicated F. novicida strains were grown in TSB with 5 % KCl and FPI protein synthesis (pellet fractions) and secretion (cleared culture supernatants) were analyzed using SDS-PAGE and immunoblotting with anti-IglC antiserum. Immunoblotting for the inner membrane protein PdpB was included as a lysis control. The experiment was repeated 3 times and a representative example is shown.