Source:http://linkedlifedata.com/resource/umls/id/C0019629
MSH: Membrane glycoproteins consisting of an alpha subunit and a BETA 2-MICROGLOBULIN beta subunit. In humans, highly polymorphic genes on CHROMOSOME 6 encode the alpha subunits of class I antigens and play an important role in determining the serological specificity of the surface antigen. Class I antigens are found on most nucleated cells and are generally detected by their reactivity with alloantisera. These antigens are recognized during GRAFT REJECTION and restrict cell-mediated lysis of virus-infected cells.,CSP: large transmembrane, polymorphic glycoproteins noncovalently associated with nonpolymorphic beta 2-microglobulin; in humans, three structural genes on chromosome 6 code for the HLA-A, HLA-B and HLA-C antigens, and in mice three genes on chromosome 17 code for the H-2 antigens; class I antigens are found on most nucleated cells, are recognized during graft rejection, restrict cell-mediated lysis of virus infected cells, and are associated with rheumatologic diseases and certain malignant disorde