crystallography represents cutting-edge technology in structural biology, allowing the study
of enzyme reactions and dynamics in real time through the generation ofmolecular movies'.
This technology combines short and precise high-energy X-ray exposure to a stream of
protein microcrystals. Here, the XFEL structure of carbonic anhydrase II, a ubiquitous
enzyme responsible for the interconversion of CO2 and bicarbonate, is reported, and is …