Figure 1
Achievable time resolutions for different protein-activation methods (Levantino, Yorke et al., 2015). Different protein transitions are depicted along with their typical timescales and length scales. X-ray crystallography, small-angle X-ray scattering (SAXS) and wide-angle X-ray scattering (WAXS) can capture different types of structural transitions. Direct laser excitation, temperature jumps and mixing are the usual approaches to sample triggering and synchronization. The typical decaging half-lives of the four main photocaging groups addressed in this review (coumarin, p-hydroxyphenyl, o-nitrobenzyl and nitrodibenzofuran) are shown as black bars. |