Term Name: | symbiont-mediated suppression of host antigen processing and presentation of peptide antigen via MHC class I |
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Synonyms: | inhibition of host MHC class I molecule presentation by virus, negative regulation by virus of MHC class I cell surface presentation, suppression by virus of host antigen processing and presentation of peptide antigen via MHC class I, suppression by virus of host MHC class I cell surface presentation, suppression by virus of host tapasin activity, suppression by virus of MHC class I cell surface presentation in host |
Definition: | A process by which a symbiont inhibits or disrupts the normal processing and presentation of a peptide antigen on its cell surface in association with an MHC class I transmembrane protein complex. One mechanism of suppression is by direct inhibition of host tapasin, a type I transmembrane protein essential for the optimal expression of stable MHC class I molecules on the host cell surface. By inhibiting host tapasin activity, some viruses can prevent presentation of their antigens at the cell surface, and thereby evade the host anti-viral immune response. |
Ontology: | GO: Biological Process [GO:0046776] QuickGO AmiGO |