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Top view of the active-site cavity and relative coordination geometry of the dimetal center in a) di-MnII-DF1, b) di-MnII-DF1–L13A, and c) di-MnII-DF1–L13G. The access channel, indicated by black arrows, expands upon Leu to Ala to Gly mutation. The red spheres indicate the water molecules and the yellow spheres (in DF1–L13A) indicate the DMSO molecule. The different residues in position 13 are depicted as balls and sticks. Pictures generated with PyMOL.[52a]
