Controlled dehydration improves the diffraction quality of two RNA crystals
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- Controlled dehydration improves the diffraction quality of two RNA crystals
- Park, HaJeung
Lee, Jun Hyuck
Disney, Matthew D.
- Post-crystallization modification; RNA; Crystal dehydration; Free mounting system; Repeat expansion
- Issue Date
- Park, HaJeung., et al. 2016. Controlled dehydration improves the diffraction quality of two RNA crystals. Park et al. BMC Structural Biology, 16(1): 19.
- Background: Post-crystallization dehydration methods, applying either vapor diffusion or humidity control devices, have been widely used to improve the diffraction quality of protein crystals. Despite the fact that RNA crystals tend
to diffract poorly, there is a dearth of reports on the application of dehydration methods to improve the diffraction quality of RNA crystals.
Results: We use dehydration techniques with a Free Mounting System (FMS, a humidity control device) to recover the poor diffraction quality of RNA crystals. These approaches were applied to RNA constructs that model various
RNA-mediated repeat expansion disorders. Conclusion: The method we describe herein could serve as a general tool to improve diffraction quality of RNA crystals to facilitate structure determinations.
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