Capillary isoelectric focusing (CIEF) is a high-resolution technique for the separation of ampholytes, such as proteins, according to their isoelectric point. CIEF coupled online with MS is regarded as a promising alternative to 2-D PAGE for fast proteome analysis with high-resolving capabilities and enhanced structural information without the drawbacks of conventional slab-gel electrophoresis. However, online coupling has been rarely described, as it presents some difficulties. A new methodology for the online coupling of CIEF with electrospray ionization mass spectrometry (ESI-MS) has been developed in glycerol-water media. This new integrated methodology provides a mean for the characterization of a large number of hydrophilic and hydrophobic proteins.
CITATION STYLE
Mokaddem, M., d’Orlyé, F., & Varenne, A. (2016). Online capillary isoelectric focusing-electrospray ionization mass spectrometry (CIEF-ESI MS) in glycerol-water media for the separation and characterization of hydrophilic and hydrophobic proteins. In Methods in Molecular Biology (Vol. 1466, pp. 57–66). Humana Press Inc. https://doi.org/10.1007/978-1-4939-4014-1_5
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