The FA6-152 monoclonal antibody specifically binds to CD36, an ~88 kDa transmembrane glycoprotein which belongs to the class B scavenger receptor family. This scavenger receptor contains a heavily glycosylated extracellular domain followed by two transmembrane segments and N- and C-terminal cytoplasmic tails. CD36 is expressed on platelets, megakaryocytes, monocytes/macrophages, dendritic cells (DCs), erythroid precursors, microvascular endothelia, skeletal, cardiac, and smooth muscle cells, adipocytes, and epithelia of retina, breast, and intestine. This multifunctional receptor plays essential roles in lipid homeostasis, angiogenesis, immune response, adhesion, and cancer progression. CD36 is also a very early marker of erythroid differentiation. In platelets, CD36 promotes activation, aggregation and secretion. Among blood cells, the FA6-152 antibody binds to both adult and fetal monocytes, platelets, and reticulocytes, but does not react with lymphocytes and granulocytes. This antibody reportedly blocks CD36 interactions with thrombospondin, collagen, apoptotic cells, and modified LDL and induces agglutination of fetal but not adult erythrocytes.