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. Author manuscript; available in PMC: 2014 Aug 1.
Published in final edited form as: FEBS J. 2013 Jun 24;280(15):3709–3720. doi: 10.1111/febs.12363

Fig. 3.

Fig. 3

Sulfur-aromatic interactions (dash lines) in MtHPt1. A Interaction between Met17 and Tyr13 within helix α1. B Six S-aromatic bonds in the hydrophobic core of the four-helix bundle. The network of these interactions is created by residues Phe71, Phe81, Cys97, Phe100, Phe103, Cys104, Cys112 and Cys115. Phe100, Cys104 and Cys115 are modeled with alternative conformations, but in each case an S-π bond is formed. The S-centroid distances to the aromatic rings are given in Å. The 2Fo-Fc electron density map is contoured at 1σ.