JVI Figure table search 04
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Thale, R.
Right arrow Articles by Koszinowski, U. H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Thale, R.
Right arrow Articles by Koszinowski, U. H.

 Previous Article  |  Next Article 

J. Virol., Oct 1995, 6098-6105, Vol 69, No. 10
Copyright © 1995, American Society for Microbiology

Identification of the mouse cytomegalovirus genomic region affecting major histocompatibility complex class I molecule transport

R Thale, U Szepan, H Hengel, G Geginat, P Lucin and UH Koszinowski
Department of Virology, University of Heidelberg, Germany.

Mouse cytomegalovirus (MCMV) functions expressed at the beginning of the early phase of the viral replication cycle interfere with the major histocompatibility complex (MHC) class I-restricted pathway of antigen presentation (M. J. Reddehase, M. R. Fibi, G. M. Keil, and U. H. Koszinowski, J. Virol. 60:1125-1129, 1986; M. Del Val, K. Munch, M. J. Reddehase, and U. H. Koszinowski, Cell 58:305-315, 1989). Nascent MHC class I heavy chains associate with beta 2-microglobulin and peptide, but the assembled trimolecular complex is retained in the endoplasmatic reticulum/cis-Golgi compartment (M. Del Val, H. Hengel, H. Hacker, U. Hartlaub, T. Ruppert, P. Lucin, and U. H. Koszinowski, J. Exp. Med. 176:729-738, 1992). To locate the responsible genomic region, the cytoplasmic retention of MHC class I molecules after injection of MCMV DNA was tested. The function was mapped to the HindIII E fragment. A recombinant MCMV deletion mutant delta MS94.5 lacking 15.8 kb in HindIII-E was constructed. Restoration of MHC class I molecule maturation and recognition of antigenic peptides by cytolytic T lymphocytes during the first hours of the early phase in mutant virus- infected cells proved the correct location to a 6.8-kb region in the HindIII E fragment. At later stages of the early phase, membrane- resident MHC class I molecules and cytolytic T lymphocyte recognition disappeared in delta MS94.5 mutant virus-infected cells. These results demonstrate that more than one early-gene function of MCMV affects the MHC class I pathway of antigen presentation. The redundant MHC class I- reactive functions target the transport of MHC class I molecules at different steps.


This article has been cited by other articles:




Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. Mol. Cell. Biol. Microbiol. Mol. Biol. Rev.
Clin. Vaccine Immunol. ALL ASM JOURNALS

Copyright © 1995 by the American Society for Microbiology. All rights reserved.