Abstract
The proteasome generates exact major histocompatibility complex (MHC) class I ligands as well as NH2-terminal-extended precursor peptides. The proteases responsible for the final NH2-terminal trimming of the precursor peptides had, until now, not been determined. By using specific selective criteria we purified two cytosolic proteolytic activities, puromycin-sensitive aminopeptidase and bleomycin hydrolase. These proteases could remove NH2-terminal amino acids from the vesicular stomatitis virus nucleoprotein cytotoxic T cell epitope 52-59 (RGYVYQGL) resulting, in combination with proteasomes, in the generation of the correct epitope. Our data provide evidence for the existence of redundant systems acting downstream of the proteasome in the antigen-processing pathway for MHC class I molecules.
| Original language | English |
|---|---|
| Pages (from-to) | 413-418 |
| Number of pages | 6 |
| Journal | Nature Immunology |
| Volume | 1 |
| Issue number | 5 |
| DOIs | |
| State | Published - Nov 2000 |
Bibliographical note
Funding Information:Acknowledgements We thank L.Yakes for reading the manuscript. Supported by the Deutsche Forschungsgemeinschaft (Leibnizprogram Ra369/4-1, to H. G. R.); Sonderforschungsbereich 510 (to H. S.); the European Union (Biomed 95-0263), Merck KGaA (Darmstadt, Germany), CTL Immunotherapies Corporation (Chatsworth, CA, USA) and a grant from the NIH/NIDA, DA 02243 (to L. B. H.).
Funding
Acknowledgements We thank L.Yakes for reading the manuscript. Supported by the Deutsche Forschungsgemeinschaft (Leibnizprogram Ra369/4-1, to H. G. R.); Sonderforschungsbereich 510 (to H. S.); the European Union (Biomed 95-0263), Merck KGaA (Darmstadt, Germany), CTL Immunotherapies Corporation (Chatsworth, CA, USA) and a grant from the NIH/NIDA, DA 02243 (to L. B. H.).
| Funders | Funder number |
|---|---|
| CTL Immunotherapies Corporation | |
| NIH/NIDA | DA 02243 |
| Author National Institute on Drug Abuse DA031791 Mark J Ferris National Institute on Drug Abuse DA006634 Mark J Ferris National Institute on Alcohol Abuse and Alcoholism AA026117 Mark J Ferris National Institute on Alcohol Abuse and Alcoholism AA028162 Elizabeth G Pitts National Institute of General Medical Sciences GM102773 Elizabeth G Pitts Peter McManus Charitable Trust Mark J Ferris National Institute on Drug Abuse | R01DA002243 |
| Author National Institute on Drug Abuse DA031791 Mark J Ferris National Institute on Drug Abuse DA006634 Mark J Ferris National Institute on Alcohol Abuse and Alcoholism AA026117 Mark J Ferris National Institute on Alcohol Abuse and Alcoholism AA028162 Elizabeth G Pitts National Institute of General Medical Sciences GM102773 Elizabeth G Pitts Peter McManus Charitable Trust Mark J Ferris National Institute on Drug Abuse | |
| Merck KGaA | |
| European Commission | 95-0263 |
| European Commission | |
| Deutsche Forschungsgemeinschaft | Ra369/4-1 |
| Deutsche Forschungsgemeinschaft |
ASJC Scopus subject areas
- Immunology and Allergy
- Immunology