期刊
ANALYTICAL CHEMISTRY
卷 86, 期 15, 页码 7421-7427出版社
AMER CHEMICAL SOC
DOI: 10.1021/ac501189j
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资金
- Deutsche Forschungsgemeinschaft [SFB/TR34]
- Bundesministerium fur Bildung und Forschung (ZIK-FunGene)
- European Social Fund (Coast)
Successful proteome analyses of highly dilute samples are strongly dependent on optimized workflows considering especially sample preparation prior to highly sensitive mass spectrometric analysis. Various methods are available for enrichment of proteome samples, each characterized by specific advantages and disadvantages limiting their general application as a method of choice. Here we suggest an optimized universal protocol ensuring reproducibility and effective enrichment of dilute samples by commercial affinity beads. By comparably assessing the performance of the new protocol with selected standard enrichment techniques, we show the seamless application of the enrichment in common mass spectrometry based proteomic workflows. Further, novel applications are suggested including a facile storage and shipping of desiccated, trapped proteome samples at ambient temperatures and usage of the affinity beads for gel-free proteomic approaches.
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