class ii major histocompatibility antigens是什么意思_class ii major histocompatibility antigens中文

class ii major histocompatibility antigens中文什么意思

《英文msh词典》Class II Major Histocompatibility Antigens
[入口词] Class II Major Histocompatibility Antigens
[主题词] Histocompatibility Antigens Class II
[英文释义] Large,transmembrane,non-covalently linked glycoproteins (alpha and beta). Both chains can be polymorphic although there is more structural variation in the beta chains. The class II antigens in humans are called HLA-D ANTIGENS and are coded by a gene on chromosome 6. In mice,two genes named IA and IE on chromosome 17 code for the H-2 antigens. The antigens are found on B-lymphocytes,macrophages,epidermal cells,and sperm and are thought to mediate the competence of and cellular cooperation in the immune response. The term IA antigens used to refer only to the proteins encoded by the IA genes in the mouse,but is now used as a generic term for any class II histocompatibility antigen.

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class ii major histocompatibility antigens中文什么意思