| Namespace | biological_process | Obsolete | false |
| Description | Any viral process that inhibits a host antigen-presenting cell expressing 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, viruses can prevent presentation of their antigens at the cell surface, and thereby evade the host anti-viral immune response. |
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