We seek to acquire a 12 Tesla FTMS system with electron-capture dissociation (ECD) to apply top-down proteomics strategies to a variety of important projects relevant to human health. To augment the instrumentation, we propose to implement electron-transfer dissociation (ETD) and a compensated ICR trap to realize a unique high-end instrument. The projects to which the instrument will be applied represent a balance between translational (disease-related) and fundamental (basic) research. The disease-related research projects have impact in the understanding and treatment of arthritis, autoimmunity, cancer, diabetes, HIV, and blood disorders. The basic science projects seek an understanding of basic life processes related to anesthesiology, cellular signaling, energy transfer, and protein function, binding, and interaction. Each project requires top-down protein sequencing to solve ensemble problems of protein post-translational modification or to address important problems in the biochemistry and biophysics of protein interactions and structural change. These problems are not soluble by bottom-up methods. The use of high-field magnet-based spectrometers is a major challenge today. Nevertheless, the research enabled by this unique instrument will direct strategies to expand the role of mass spectrometry for tomorrow's research in probing intact proteins and answering systems biological questions.

Public Health Relevance

We are proposing a unique mass spectrometer system that will provide unparalleled capabilities to understand a broad array of diseases including arthritis, autoimmunity, diabetes, HIV, blood disorders, anesthesiology and general biological processes. It will also support basic research aimed at the fundamentals of protein modification and interaction. As we develop the instruments capabilities, we expect to find opportunities to improve human health by solving problems that were previously intractable. ? ? ?

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biomedical Research Support Shared Instrumentation Grants (S10)
Project #
1S10RR025101-01
Application #
7498299
Study Section
Special Emphasis Panel (ZRG1-BCMB-M (30))
Program Officer
Tingle, Marjorie
Project Start
2008-07-01
Project End
2010-06-30
Budget Start
2008-07-01
Budget End
2010-06-30
Support Year
1
Fiscal Year
2008
Total Cost
$1,879,719
Indirect Cost
Name
Washington University
Department
Chemistry
Type
Schools of Arts and Sciences
DUNS #
068552207
City
Saint Louis
State
MO
Country
United States
Zip Code
63130
Zhang, Hao; Cui, Weidong; Gross, Michael L (2013) Native electrospray ionization and electron-capture dissociation for comparison of protein structure in solution and the gas phase. Int J Mass Spectrom 354-355:
Jones, Lisa M; Zhang, Hao; Cui, Weidong et al. (2013) Complementary MS methods assist conformational characterization of antibodies with altered S-S bonding networks. J Am Soc Mass Spectrom 24:835-45
Marty, Michael T; Zhang, Hao; Cui, Weidong et al. (2012) Native mass spectrometry characterization of intact nanodisc lipoprotein complexes. Anal Chem 84:8957-60
Zhang, Hao; Cui, Weidong; Wen, Jianzhong et al. (2011) Native electrospray and electron-capture dissociation FTICR mass spectrometry for top-down studies of protein assemblies. Anal Chem 83:5598-606
Jones, Lisa M; B Sperry, Justin; A Carroll, James et al. (2011) Fast photochemical oxidation of proteins for epitope mapping. Anal Chem 83:7657-61
Zhang, Hao; Cui, Weidong; Wen, Jianzhong et al. (2010) Native electrospray and electron-capture dissociation in FTICR mass spectrometry provide top-down sequencing of a protein component in an intact protein assembly. J Am Soc Mass Spectrom 21:1966-8
Brustkern, Adam M; Rempel, Don L; Gross, Michael L (2008) An electrically compensated trap designed to eighth order for FT-ICR mass spectrometry. J Am Soc Mass Spectrom 19:1281-5