Specificity
This antibody reacts with beta 2 Microglobulin (extracellular antigen), associated with cell-surface MHC Class I molecules and other membrane antigens. It also reacts with soluble beta 2 Microglobulin. beta 2 Microglobulin is a 12 kDa Ig like glycoprotein expressed on lymphocytes, thymocytes, monocytes, granulocytes, platelets, endothelial cells, and epithelial cells. It is absent on erythrocytes.