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. 2020 Jun 24;11:3202. doi: 10.1038/s41467-020-16954-7

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Fig. 2 — Hydrogen bonds are shown as blue dashed lines; the distance between Cys145 and His41 is shown as a black dotted line, the dashed red line indicates a strong C–H…O bond. The 2F_O – F_C electron density map contoured at 1.6 σ level is shown as a violet mesh. All distances are given in Ångstroms.