%0 Journal Article %T XFEL structure of carbonic anhydrase II: a comparative study of XFEL, NMR, X-ray and neutron structures. %A Hull JA %A Lee C %A Kim JK %A Lim SW %A Park J %A Park S %A Lee SJ %A Park G %A Eom I %A Kim M %A Hyun H %A Combs JE %A Andring JT %A Lomelino C %A Kim CU %A McKenna R %J Acta Crystallogr D Struct Biol %V 80 %N 0 %D 2024 Mar 1 %M 38411550 %F 5.699 %R 10.1107/S2059798324000482 %X The combination of X-ray free-electron lasers (XFELs) with serial femtosecond crystallography represents cutting-edge technology in structural biology, allowing the study of enzyme reactions and dynamics in real time through the generation of `molecular 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 compared with previously reported NMR and synchrotron X-ray and neutron single-crystal structures.