Comparison of the 2mFo − Fc maps and the refined multi-conformer models produced from each serial XFEL experiment. Maps were visualized at multiple contour levels to show evidence of alternative conformations. Following multi-conformer refinement, ensembles were generated from each model using phenix.ensemble_refine. In the right panel, a histogram of the χ1 angles for residue 113 is plotted for the ensemble. Multi-conformer models plus maps, and the distribution of χ1 angles across the ensemble models, are similar for all three XFEL data sets.