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Gel‐aided sample preparation (GASP)—A simplified method for gel‐assisted proteomic sample generation from protein extracts and intact cells

2014; Wiley; Volume: 15; Issue: 7 Linguagem: Inglês

10.1002/pmic.201400436

1615-9861

Román Fischer, Benedikt M. Kessler,

Metabolomics and Mass Spectrometry Studies

We describe a "gel-assisted" proteomic sample preparation method for MS analysis. Solubilized protein extracts or intact cells are copolymerized with acrylamide, facilitating denaturation, reduction, quantitative cysteine alkylation, and matrix formation. Gel-aided sample preparation has been optimized to be highly flexible, scalable, and to allow reproducible sample generation from 50 cells to milligrams of protein extracts. This methodology is fast, sensitive, easy-to-use on a wide range of sample types, and accessible to nonspecialists.