Constructing a magnetic tweezers to monitor RNA translocation at the single-molecule level.
Methods Mol Biol
; 1259: 257-73, 2015.
Article
em En
| MEDLINE
| ID: mdl-25579591
ABSTRACT
Single-molecule methods have become an invaluable tool in the investigation of the mechanisms of nucleic-acid motors. Magnetic tweezers is a single-molecule manipulation technique that permits the real-time measurement of enzyme activities on single nucleic-acid molecules at high-resolution, high-throughput, and inherently constant force. Here, we describe several aspects of the implementation of magnetic tweezers, with special emphasis on the construction of a simple magnetic trap and, in particular, on the detailed description of image analysis methods to measure the extension changes in nucleic-acid molecules induced by protein activity. Finally, we carefully describe the steps involved in performing a full magnetic tweezers experiment.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
RNA
/
Magnetismo
Idioma:
En
Revista:
Methods Mol Biol
Ano de publicação:
2015
Tipo de documento:
Article