Fig. 6: OMCC asymmetric map and complex flexibility.
From: Architecture of the outer-membrane core complex from a conjugative type IV secretion system
a Overview of the top and side views of the OMCC electron density map reconstructed without any imposed symmetry determined at a resolution of 5.7 Å. b Horizontal slice of the OMCC C1 map (contour level 0.34) taken at the indicated O-layer location. Each inset shows different levels of electron densities (indicated by arrows) in the connections between the TraV1CTD linker (residues 69–80) located at the OMCCOR and the TraV α1 helix located at the OMCCIR. c Horizontal slice of the OMCC C1 map (contour level 0.16) taken at the indicated I-layer location. Each inset shows different levels of electron densities (indicated by arrows) in the connections between the TraB β1 located at the OMCCOR and TraB β2 located at the OMCCOR.
