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. Author manuscript; available in PMC: 2012 Dec 16.

Published in final edited form as: J Mol Biol. 2011 Oct 25;414(5):783–797. doi: 10.1016/j.jmb.2011.10.034

a) The 2Fo-Fc electron density map contoured at 1.0 σ for the cobalt. Three cobalt atoms are located around the threefold axis, with 30% occupancy each. b) Superposition of the structures of yeast frataxin (green) and its bacterial homologue CyaY (cyan, PDB code 2EFF) showing the positions of the cobalt ions (sphere) in CyaY.

a) The 2Fo-Fc electron density map contoured at 1.0 σ for the cobalt. Three cobalt atoms are located around the threefold axis, with 30% occupancy each. b) Superposition of the structures of yeast frataxin (green) and its bacterial homologue CyaY (cyan, PDB code 2EFF) showing the positions of the cobalt ions (sphere) in CyaY.