Figure 4From: A structurally informed autotransporter platform for efficient heterologous protein secretion and displayCell surface display of ESAT6 upon fusion to the Hbp passenger. Cells expressing Hbp display constructs described in the legend to Figure 3A, and cells carrying an empty vector (EV), were fixed and analyzed by immuno-EM using Hbp passenger and ESAT6 specific antibodies as indicated. Scale bar: 100 nm.Back to article page