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Electron microscopy of GMMA from different mutants. GMMA were purified from STmG and SEnG containing wild-type lipid A (WT lip.A), as well as from STmG ΔhtrB, STmG ΔmsbB, STmG ΔmsbB ΔpagP, SEnG ΔhtrB, SEnG ΔmsbB, SEnG ΔmsbB ΔpagP, and SEnG ΔmsbB ΔhtrB. Magnification, ×87,000. Bars, 100 nm.
