Abstract
The major histocompatibility complex (MHC) class I restricted pathway of antigen processing allows the presentation of intracellular antigens to cytotoxic T lymphocytes. The proteasome is the main protease in the cytoplasm and the nucleus, which is responsible for the generation of most peptide ligands of MHC-I molecules. Peptides produced by the proteasome can be further trimmed or destroyed by numerous cytosolic or endoplasmic reticulum (ER) luminal proteases. Small molecule inhibitors are useful tools for probing the role of proteases in MHC class I antigen processing. Here, we describe different methods to test the impact of protease inhibitors in antigen presentation assays.
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Acknowledgments
This work was supported by grants from the German Research Foundation grant Nr. BA 4199/2-1 to M.B. and GR 1517/2.4 and GR 1517/10-2 to M.G., the SwissLife Jubiläumsstiftung to M.B., and Swiss Cancer Research grant KFS-3687-08-2015 to M.G.
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Basler, M., Groettrup, M. (2019). Testing the Impact of Protease Inhibitors in Antigen Presentation Assays. In: van Endert, P. (eds) Antigen Processing. Methods in Molecular Biology, vol 1988. Humana, New York, NY. https://doi.org/10.1007/978-1-4939-9450-2_5
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DOI: https://doi.org/10.1007/978-1-4939-9450-2_5
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