Efficient Protein Digestion at Elevated Temperature in the Presence of Sodium Dodecyl Sulfate and Calcium Ions for Membrane Proteomics.
Anal Chem
; 91(15): 9516-9521, 2019 08 06.
Article
em En
| MEDLINE
| ID: mdl-31259536
ABSTRACT
The growing significance of membrane proteins inspires continuous development and improvement of methods for robust membrane proteomics. Here, we developed a very simple and efficient method for membrane protein digestion using an ionic detergent, sodium dodecyl sulfate (SDS), at high temperature, conditions where trypsin is normally inactivated. Our results suggest that trypsin can be stabilized by a combination of calcium ions and sodium chloride, which enables protein digestion at elevated temperature in the presence of strong ionic detergents such as SDS. Finding the conditions for stabilization of trypsin offers novel opportunities for the application of detergents for the investigation of membrane proteins.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dodecilsulfato de Sódio
/
Membrana Celular
/
Ovalbumina
/
Cálcio
/
Listeria monocytogenes
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article