Clone REA1164 recognizes a class III epitope of the CD34 antigen. This epitope is different than the one recognized by the clone used in the CD34 MicroBead Kits.
The CD34 antigen is a single-chain transmembrane glycoprotein, expressed on human hematopoitetic stem and progenitor cells, endothelial progenitor cells, vascular endothelial cells, embryonic fibroblasts, and some cells in fetal and adult nervous tissue. The antigen is absent on fully differentiated hematopoietic cells such as normal peripheral blood lymphocytes, monocytes, granulocytes, erythrocytes, and platelets. CD34 antibodies can be used for studies of hematopoiesis and non-hematopoiectic stem cells, phenotyping of hematopoietic stem cells, and studies on phenotyping of hematologic malignancies, endothelial cells, and endothelial progenitor cells (EPCs).
Additional information: Clone REA1164 displays negligible binding to Fc receptors.