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. Author manuscript; available in PMC: 2014 Sep 9.
Published in final edited form as: J Mol Biol. 2013 Jun 7;425(17):3121–3136. doi: 10.1016/j.jmb.2013.05.028

Figure 6.

Figure 6

Active site differences between Cys-bound and Cys-persulfenate bound CDO. The persulfenate complex at pH=6.2 (cyan and white carbons) is overlaid on the Cys-bound complex pH=9.0 (dark carbons). Coordination and H-bond distances are given for the persulfenate complex (light text) and for the Cys-bound complex (black text). In the Cys-bound complex the Cys N- and Sγ-ligands are moved slightly to partly occupy the space left by the missing sixth ligand. This movement causes a slight shift in the whole Cys orientation and of the Cys-Tyr and Arg that interact with it.