The molecular weight of the recognized platelet form of CD63 is 40 to 55kDa. CLBGran/12 reacts with most peripheral blood cells including activated platelets, lymphoid, myeloid and endothelial cells, except for red blood cells and resting T cells. The CD63 antigen is present in many tissues and cell line PHA blasts, K562, U937, KG1a, RAJI. Both surface and cytoplasmotic reactions are reported. CLB Gran/12 has been assigned to the CD63 cluster of differentiation at the IVth International Workshop on Human Leucocyte Differentiation Antigens.

Store (in the dark) at 2-8^°C. DO NOT FREEZE.