Figure 3.

(a) Schematic of a synchrotron-like protein crystallography experiment at an XFEL. The crystal is translated by a step size of 25–100 µm and rotated by a fraction of its mosaicity between pulses. (b, c) Examples of samples measured with the synchrotron-like method. (b) A CpI [FeFe] hydrogenase crystal, with 70 µm step size, reproduced from Cohen et al. (2014 ▸). Copyright (2014) National Academy of Sciences. (c) A copper nitrite reductase crystal with 50 µm steps and 0.1° rotation steps, reproduced from Halsted et al. (2018 ▸).