Figure 3From: Engineering of an E. coli outer membrane protein FhuA with increased channel diameterSDS-PAGE result of FhuA Δ1-159 Exp extraction (using detergent OES). S - sample of FhuA Δ1-159 Exp in OES (expected size: ~66 kDa). P -lipid fraction pellet remaining after protein extraction. M - protein molecular weight marker (Fermentas, St. Leon-Rot, Germany).Back to article page