Large scale protein profiling by combination of protein fractionation and multidimensional protein identification technology (MudPIT) - PubMed (original) (raw)

Comparative Study

doi: 10.1074/mcp.T500013-MCP200. Epub 2005 Nov 4.

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• PMID: 16272560
• DOI: 10.1074/mcp.T500013-MCP200

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Comparative Study

Large scale protein profiling by combination of protein fractionation and multidimensional protein identification technology (MudPIT)

Emily I Chen et al. Mol Cell Proteomics. 2006 Jan.

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Abstract

In the past decade, shotgun proteomic analysis has been utilized extensively to answer complex biological questions. New challenges arise in large scale proteomic profiling when dealing with complex biological mixtures such as the mammalian cell lysate. In this study, we explored the approach of protein separation prior to the shotgun multidimensional protein identification technology (MudPIT) analysis. We fractionated the mammalian cancer cell lysate using the PF 2D ProteomeLab system and analyzed the distribution of molecular weight, isoelectric point, and cellular localization of the eluted proteins. As a result, we were able to reduce sample complexity by protein fractionation and increase the possibility of detecting proteins with lower abundance in the complex protein mixture.

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