Towards the entire proteome of the model bacterium Bacillus subtilis by gel-based and gel-free approaches

Susanne Wolff, Haike Antelmann, Dirk Albrecht, Dörte Becher, Jörg Bernhardt, Sierd Bron, Knut Büttner, Jan Maarten van Dijl, Christine Eymann, Andreas Otto, Le Thi Tam, Michael Hecker
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences 2007 April 15, 849 (1): 129-40
With the emergence of mass spectrometry in protein science and the availability of complete genome sequences, proteomics has gone through a rapid development. The soil bacterium Bacillus subtilis, as one of the first DNA sequenced species, represents a model for Gram-positive bacteria and its proteome was extensively studied throughout the years. Having the final goal to elucidate how life really functions, one basic requirement is to know the entirety of cellular proteins. This review presents how far we have got in unraveling the proteome of B. subtilis. The application of gel-based and gel-free technologies, the analyses of different subcellular proteome fractions, and the pursuance of various physiological strategies resulted in a coverage of more than one-third of B. subtilis theoretical proteome.

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