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Native RNA purification by gel filtration chromatography
Evan P Booy1, Hui Meng, Sean A McKenna
1Department of Chemistry, University of Manitoba, Winnipeg, MB, Canada.
Methods in Molecular Biology (Clifton, N.J.)
|October 16, 2012
Summary
This study presents a method for purifying RNA and RNA-protein complexes using fast protein liquid chromatography (FPLC) with gel filtration columns. This technique enables the isolation of large quantities of RNA for various applications.
Area of Science:
- Molecular Biology
- Biochemistry
- Biophysics
Background:
- In vitro transcription using T7 RNA polymerase is crucial for generating large RNA quantities.
- Purification of synthesized RNA is essential for downstream applications.
- Existing RNA purification methods may not be suitable for complex biological structures.
Purpose of the Study:
- To describe a native isolation method for RNA molecules.
- To demonstrate the purification of RNA-protein complexes.
- To provide an efficient purification strategy for synthetic and in vitro transcribed RNAs.
Main Methods:
- Fast Protein Liquid Chromatography (FPLC) purification.
- Gel filtration chromatography using Superdex 75 or Superdex 200 columns.
- Native isolation of RNA and RNA-protein complexes.
Main Results:
- Successful native isolation of RNA molecules was achieved.
- FPLC purification effectively separated RNA and RNA-protein complexes.
- The method is applicable to both synthetic and in vitro transcribed RNAs.
Conclusions:
- FPLC with Superdex gel filtration columns offers an effective native purification method for RNA.
- This technique is valuable for isolating biologically relevant RNA complexes, including RNA-protein complexes.
- The described method supports diverse downstream applications requiring high-purity RNA.
