A Robust and Versatile Method for Production and Purification of Large-scale RNA Samples for Structural Biology
Overview
Affiliations
Recent findings in genome-wide transcriptomics revealed that RNAs are involved in almost every biological process, across all domains of life. The characterization of native RNAs of unknown function and structure is particularly challenging due to their typical low abundance in the cell and the inherent sensitivity toward ubiquitous RNA degrading enzymes. Therefore, robust in vitro synthesis and extensive work-up methods are often needed to obtain samples amenable for biochemical, biophysical, and structural studies. Here, we present a protocol that combines the most recent advances in T7 in vitro transcription methodology with reverse phase ion pairing and ion exchange HPLC purification of RNAs for the production of yield-optimized large-scale samples. The method is easy to follow, robust and suitable for users with little or no experience within the field of biochemistry or chromatography. The complete execution of this method, for example, for production of isotopically labeled NMR samples, can be performed in less than a week.
Dasgupta R, Becker W, Petzold K Nucleic Acids Res. 2024; 52(19):11995-12004.
PMID: 39228364 PMC: 11514488. DOI: 10.1093/nar/gkae744.
Structure of Essential RNA Regulatory Elements in the West Nile Virus 3'-Terminal Stem Loop.
Zhu Y, Chaubey B, Olsen G, Varani G J Mol Biol. 2024; 436(22):168767.
PMID: 39214284 PMC: 11563921. DOI: 10.1016/j.jmb.2024.168767.
Optimising in-cell NMR acquisition for nucleic acids.
Annecke H, Eidelpes R, Feyrer H, Ilgen J, Gurdap C, Dasgupta R J Biomol NMR. 2024; 78(4):249-264.
PMID: 39162911 PMC: 11614993. DOI: 10.1007/s10858-024-00448-5.
Li Z, Bilic M, Nagar B Biol Methods Protoc. 2024; 9(1):bpae033.
PMID: 38855193 PMC: 11162090. DOI: 10.1093/biomethods/bpae033.
Probing the conformational changes of overexpressed cell cycle regulator 6S ncRNA.
Makraki E, Miliara S, Pagkalos M, Kokkinidis M, Mylonas E, Fadouloglou V Front Mol Biosci. 2023; 10:1219668.
PMID: 37555016 PMC: 10406553. DOI: 10.3389/fmolb.2023.1219668.