Abstract
WE describe a mutant human cell line (LBL 721.174)1,2 that has lost a function required for presentation of intracellular viral antigens with class I molecules of the major histocompatibility complex (MHC), but retains the capacity to present defined epitopes as extracellular peptides. The cell also has a defect in the assembly and expression of class I MHC molecules2,3,4, which we show can be restored by exposure of the cells to a peptide epitope. This phenotype suggests a defect in the association of intracellular antigen with class I molecules similar to that described for the murine mutant RMA-S (ref. 5), but in the present case the genetic defect can be mapped within the MHC locus on human chromosome 6.
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Cerundolo, V., Alexander, J., Anderson, K. et al. Presentation of viral antigen controlled by a gene in the major histocompatibility complex. Nature 345, 449–452 (1990). https://doi.org/10.1038/345449a0
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DOI: https://doi.org/10.1038/345449a0
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