envelope

B, colony morphology of WT, ΔpimE, and the suppressor mutant S1. The suppressor mutant S1 (as nicely as the opposite 21 suppressor mutants; not shown) restored WT colony morphology. C, profile of PIMs purified from the suppressor mutants. Lipid extracts of WT, ΔpimE, and the suppressor mutants S1–S6 had been separated by TLC and visualized […]