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The development of a mass spectrometric workflow for the sensitive identification and quantitation of the kinetics of changes in metaproteomes, or in particular bacterial pathogens after internalization by host cells, is described. This procedure employs three essential stages: (i) SILAC pulse-chase labeling and infection assay; (ii) isolation of bacteria by GFP-assisted cell sorting; (iii) mass spectrometry-based...
Peptide mass fingerprinting by MALDI-MS and sequencing by tandem mass spectrometry have evolved into the major methods for identification of proteins following separation by two-dimensional gel electrophoresis, SDS–PAGE or liquid chromatography. One main technological goal of proteome analyses beside high sensitivity and automation was the comprehensive analysis of proteins. Therefore, the protein...
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