特異性：A monomorphic epitope on avian MHC Class I molecules (Mr ~ 68 kDa) Like their mammalian counterparts, avian MHC Class I molecules (also known as B-F antigens) consist of a highly polymorphic alpha-chain (Mr ~ 44 kDa) non-covalently bound to the invariant beta 2-microglobulin subunit (Mr ~ 12 kDa). MHC Class I molecules are expressed on most nucleated cells where they present endogenously synthesized antigenic peptides to CD8+ T lymphocytes, which are usually cytotoxic T cells.1-3 MAb F21-2 also reacts with turkey MHC Class I.4
