Rapid, nondenaturing RNA purification using weak anion-exchange fast performance liquid chromatography.
RNA
; 16(3): 647-53, 2010 Mar.
Article
en En
| MEDLINE
| ID: mdl-20100812
ABSTRACT
We present a simple and fast method for large-scale purification of RNA oligonucleotides suitable for biochemical and structural studies. RNAs are transcribed in vitro with T7 RNA polymerase using linearized plasmid DNA templates. After addition of EDTA, the crude transcription reaction is subjected directly to weak anion-exchange chromatography using DEAE-sepharose to separate the T7 RNA polymerase, unincorporated rNTPs, small abortive transcripts, and the plasmid DNA template from the desired RNA product. The novel method does neither require tedious phenol/chloroform extraction of the T7 RNA polymerase nor denaturation of the RNA, which is desirable especially for larger RNAs. In addition, isotopically labeled rNTPs can be easily recycled from the column flow-through and oligomeric RNA aggregates can be separated from the natively folded monomeric RNA product.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
ARN
/
Cromatografía Liquida
Tipo de estudio:
Evaluation_studies
Idioma:
En
Revista:
RNA
Asunto de la revista:
BIOLOGIA MOLECULAR
Año:
2010
Tipo del documento:
Article
País de afiliación:
Reino Unido