Recognizes neuraminidase-sensitive epitope on CD43 (Leukosialin), a 95-135 kDa type I transmembrane glycoprotein (mucin-type) which is involved in lymphocyte activation. CD43 is expressed by platelets and at high levels on the surface of all leukocytes. It is negative on resting B lymphocytes and erythrocytes. MEM-59 activates T lymphocytes and also induces apoptosis in hemopoietic progenitor cells.

Short term store at 2-8 °C. Long term, aliquot and store at -20 °C. Avoid repeated freeze/thaw cycles.