Solution phase isoelectric fractionation in the multi-compartment electrolyser: a divide and conquer strategy for the analysis of complex proteomes. |
| |
Authors: | Gary B Smejkal Alexander Lazarev |
| |
Institution: | Proteome Systems, 14 Gill Street, Woburn, MA 01801, USA. smejkal@proteomesystems.com |
| |
Abstract: | Sample complexity frequently interferes with the analysis of low-abundance proteins by two-dimensional gel electrophoresis (2DGE). Ideally, high abundance proteins should be removed, allowing low-abundance proteins to be applied at much higher concentrations than is possible with the unfractionated sample. One approach is to partition the sample in a manner that segregates the bulk of extraneous proteins from the protein(s) of interest. Solution phase isoelectric focusing in the multi-compartment electrolyser generates fractions of discrete isoelectric point (pI) intervals allowing isolated narrow segments of a proteome to be analysed individually by 2DGE. It is particularly useful for the isolation of low-abundance proteins of extremely basic or acidic pI. |
| |
Keywords: | immobilised pH gradient multi-compartment electrolyser proteomics solution phase isoelectric focusing two-dimensional gel electrophoresis |
本文献已被 Oxford 等数据库收录! |