%0 Journal Article %T Validation of an Easy Acetonitrile Fractionation for the Simplification of Protein Samples Prior to Proteomics Analyses %A Yannis Karamanos %A Barbara Deracinois %A Gwenael Pottiez %A Sophie Duban-Deweer %J Open Access Library Journal %V 2 %N 10 %P 1-6 %@ 2333-9721 %D 2015 %I Open Access Library %R 10.4236/oalib.1101928 %X In most proteomics analyses and in particular for the ˇ°off-gelˇ± approaches, based essentially on chromatography, the complexity of the proteome should be reduced; otherwise identifications can be hindered, especially if the mass spectrometry analysis is not conducted using state-of-the-art instrumentation. Even if the method used is a bottom-up proteomics, it appears mandatory to pre-fractionate the proteins in order to reduce the complexity. We report here the development and validation of a pre-fractionation based on the differential solubilisation of proteins using increasing concentrations of acetonitrile (ACN). This ˇ°ACN fractionationˇ± was applied to the study of the Triton X-100 soluble sub-proteome of brain capillary endothelial cells (BCEC) with re-induced blood-brain barrier (BBB) functions. %K Proteomics %K Acetonitrile %K Fractionation %U http://www.oalib.com/paper/3150568