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. Author manuscript; available in PMC: 2023 May 20.
Published in final edited form as: Chem Rev. 2022 Jul 11;122(14):11974–12045. doi: 10.1021/acs.chemrev.2c00106

Figure 3.

Figure 3.

Crystal structures of the (a) V68L (rose brown, PDB ID: 1MLS),105 (b) H64D/V68A (orange, PDB ID: 1LUE),106 and (c) V68I (magenta, PDB ID: 1MLO)105 Mb variants. Different residues at position 68 are shown in cyan. Water molecules are denoted as red spheres. The hydrogen bonds are represented by black dashed lines.