特異性：Chicken MHC Class II (B-L) molecules The chicken major histocompatibility complex (MHC), or B complex, consists of several clusters of highly polymorphic genes. Like their mammalian counterparts, the avian MHC exerts genetic influence over a variety of important biological functions such as immune response, disease resistance, growth and development, aging, and reproduction. Chicken MHC Class II genes, also known as the B-L subregion, of the chicken MHC encode cell surface glycoproteins that are homologous to mammalian Class II antigens. B-L antigens structurally are similar to mammalian Class II molecules in that they are noncovalently bound dimmers of one 32-34 kDa heavy chain and one 27-30 kDa light chain. MHC Class II is primarily expressed on B cells and antigen presenting cells (APCs).1
