Integration of top-down and bottom-up MS for comprehensive proteome characterization

Robert Hettich, Nathan VerBerkmoes, Keiji Asano, Joshua Sharp

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    Integration of top-down and bottom-up mass spectroscopy (MS) method for detection of proteolytic peptides from a complex protein sample was discussed. Bacterial and yeast cells were cultured to suitable levels and a soluble protein fraction was prepared by centrifuging and separating the non-soluble material. The bottom-up MS was accomplished with a Thermo Finnigan LCQ instrument while the top-down MS was conducted with a IonSpec 9.4 FTICR-MS instrument. Results show that the approach provides the most comprehensive coverage of not only protein identification and cataloging, but also the exact molecular form of the protein on the cell.

    Original languageEnglish
    Pages53-54
    Number of pages2
    StatePublished - 2002
    EventProceedings - 50th ASMS Conference on Mass Spectrometry and Allied Topics - Orlando, FL, United States
    Duration: Jun 2 2002Jun 6 2002

    Conference

    ConferenceProceedings - 50th ASMS Conference on Mass Spectrometry and Allied Topics
    Country/TerritoryUnited States
    CityOrlando, FL
    Period06/2/0206/6/02

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