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. Author manuscript; available in PMC: 2021 Aug 19.
Published in final edited form as: J Am Chem Soc. 2020 Aug 5;142(33):14249–14266. doi: 10.1021/jacs.0c05613

Figure 1.

Figure 1.

The diferric Mt OB3b sMMOH:MMOB complex (PDB: 6YD0). (A) Two perspectives of the overall complex. The α, β, and γ subunits of the sMMOH protein are shown in different shades of green while MMOB is colored purple. The iron atoms in the sMMOH active site are represented as orange spheres. The dimeric sMMOH:MMOB is shown by generating the symmetry related monomer in PyMOL (B) 2Fo-Fc map of the oxidized diiron cluster contoured to 2 σ. (C) Cartoon of the α-subunit with the helix nomenclature illustrated.