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. 2018 Jan;93(1):14–24. doi: 10.1124/mol.117.109744

Fig. 1.

Fig. 1.

(A) Overlay of the 12 chains in the asymmetric unit computed using ProSmart (CCP4) are depicted by Cα traces for each chain. Yellow-to-red color changes indicate increased divergence for both the backbone and side-chain rotamers. Helices are indicated by letters and β-sheets by numbers. (B) One of the three tetrameric substructures of the asymmetric unit, centered on lattice interactions of G′, helices is illustrated for chains A (yellow), D (cyan), E (magenta), and I (green). The heme and Fe are depicted as sticks and spheres, respectively. The carbons of the heme are colored brown, oxygen red, nitrogen blue, and iron orange.