Shotgun Proteome Analysis of Rhodospirillum rubrum S1H: Integrating Data from Gel-Free and Gel-Based Peptides Fractionation Methods

Felice Mastroleo, Baptiste Leroy, Rob Van Houdt, Catherine s'Heeren, Max Mergeay, Larissa Hendrickx, Ruddy Wattiez

    Research outputpeer-review


    Beside bioreactor modeling studies, the molecular characterization of life-support organisms appeared to be essential to complete their global behavior picture, in particular, culture conditions. Using a combination of LC-MS/MS approaches with gel-free and gel-based peptides fractionation steps, we identified 932 proteins from the R-proteobacterium Rhodospirillum rubrum S1H. In addition, abundance data were retrieved using the recently developed emPAI approach which takes into account the number of sequenced peptides per protein. This work has also allowed identification of new and specific proteins for the Rhodospirillaceae family.
    Original languageEnglish
    Pages (from-to)2530-2541
    JournalJournal of Proteome Research
    Issue number5
    StatePublished - 25 Feb 2009

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