Fig. 3: The combined asymmetric units of the OMCC.
From: Architecture of the outer-membrane core complex from a conjugative type IV secretion system
a The side- and a 90° rotated view of the combined OMCC asymmetric units (ASUOR and ASUIR) in surface representation, highlighting individual protein and protein domains. Individual proteins colour coded as described in Fig. 2a. b Cartoon representation of the combined ASU (ASUOR and ASUIR) with same views as in ‘a’, colour coded as in Fig. 2a. The individual domains and key secondary structural features along with the protein boundaries are highlighted. c Topology secondary structure diagrams of TraV (purple, pink and brown), TraK (yellow and green) and TraB (cyan). β-strands and α-helices are represented as arrows and cylinders, respectively. Regions for which no electron density was observed are indicated by dashed lines.
