Predicting Homogeneous Pilus Structure from Monomeric Data and Sparse Constraints

Figure 6

The N-terminal of the GC pilus has three aromatic residues whose side chains are positioned to stack, with F1 from one subunit being inserted between Y24 and Y27 from an adjacent subunit. Aromatic residues from the 10 lowest-energy models are depicted in different colors. Only one backbone of these models is shown (in ribbon).