The current state of two-dimensional electrophoresis with immobilized pH gradients

Autor: Angelika Görg, Günther Boguth, Robert Wildgruber, Burghardt Scheibe, Christian Obermaier, Walter Weiss, Alois Harder
Rok vydání: 2000
Předmět:
Zdroj: Electrophoresis. 21(6)
ISSN: 0173-0835
Popis: The original protocol of two-dimensional electrophoresis with immobilized pH gradient (IPG-Dalt; Gorg et al., Electrophoresis 1988, 9, 531-546) is updated. Merits and limits of different methods for sample solubilization, sample application (by cup-loading or ingel rehydration) with respect to the pH interval used for IPG-isoelectric focusing are critically discussed. Guidelines for running conditions of analytical and micropreparative IPG-Dalt, using wide IPGs up to pH 12 for overview patterns, or narrow IPGs for zoom-in gels for optimum resolution and detection of minor components, are stated. Results with extended separation distances as well as automated procedures are demonstrated, and a comparison between protein detection by silver staining and fluorescent dyes is given. A brief trouble shooting guide is also included.
Databáze: OpenAIRE