Antigen 85A peptide presented by major histocompatibility complex molecule

The "Antigen 85A peptide presented by major histocompatibility complex molecule" refers to a peptide fragment derived from the Mycobacterium tuberculosis protein Antigen 85A (Ag85A), which is bound and displayed on the cell surface by MHC class I or class II molecules. This peptide-MHC complex is recognized by T cells (CD4+ or CD8+) and is a critical component of the host adaptive immune response to TB. The complex is central to vaccine design efforts, as Ag85A is an immunodominant antigen in tuberculosis. However, as a target name, it is not a single protein, receptor, or enzyme but instead refers to an immune epitope presented in the context of antigen presentation pathways[1][2][3][4][5][6].

Other names

Ag85A epitope-MHC complexAg85A-derived peptide presented by HLA moleculesMycobacterium tuberculosis Antigen 85A peptide/MHC complex

Induction of T-cell mediated cytotoxicity through antigen presentation; Stimulation of immune response via peptide-MHC recognition by T-cell receptors (TCRs)