CD8 expressing T cells play a critical role in eradicating intracellular parasites such as viruses. CD8 positive T cells recognize MHC class I molecules in a complex with peptides of 8 to 10 residues derived from viral proteins located in the cytosol. There is tremendous interest in the mechanism by which peptides are generated. Indirect evidence implicates proteasomes in the generation of antigenic peptides. Proteasomes are abundant macromolecular structures present in the cytosol and nucleus, and have multiple protease activities. They are thought to be responsible for energy dependent proteolysis in which ubiquitin plays a prominent role in targeting proteins for destruction. In this project we examine the contribution of proteasomes to the production of antigenic peptides as well as there importance to viral life cycles. Another goal is to identify sequences that enhance the immunogenicity of proteins by increasing their capacity to generate antigenic peptides. This project has also branched out into the study of the structure and function of individual viral proteins.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Intramural Research (Z01)
Project #
1Z01AI000658-14
Application #
7194089
Study Section
(LVD)
Project Start
Project End
Budget Start
Budget End
Support Year
14
Fiscal Year
2005
Total Cost
Indirect Cost
Name
Niaid Extramural Activities
Department
Type
DUNS #
City
State
Country
United States
Zip Code
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