Figure 2
From: Molecular Assembly of Clostridium botulinum progenitor M complex of type E
(a) Surface representation of PTC-E(M) complex. BoNT/E and NTNHE are shown in red and green, respectively. Binding domains (labeled as HC and nHC) are swapped to form an interlocked complex. (b) Trefoil regions of HC and nHC come together and point in the same direction. Color scheme is same as in (a).
