CD34 (also named myeloid progenitor cell antigen) is a heavily glycosylated type I transmembrane protein. There are two forms of the CD34 protein, resulting from alternative splicing. The functions of CD34 is largely unknown, but recent evidence suggests a role for CD34 in cell adhesion and inhibition of hematopoiesis. It is suggested that CD34 is a signaling molecule involved in maintenance of a phenotypically plastic state in undifferentiated cells. CD34 is found in most endothelia, expressed on the luminal surface and membrane processes interdigitating between endothelial cells, but is absent from large veins and arteries. CD34 is furthermore expressed in fibroblast-like dendritic cells in, e.g., portal tracts of the liver, Peyers patches, and in healing wounds. In smooth muscle cells, a variable CD34 staining is found. In tumor tissues, CD34 is detected in myeloid blasts in myelodysplastic syndrome and acute myeloid leukemia in most cases as well as lymphoblasts in most cases of B-acute lymphoblastic leukemia. Mature B- and T-cell lymphomas and leukemias are CD34 negative. The majority of vascular tumors, including hemangiosarcoma and Kaposi sarcoma are CD34positive. In a panel, CD34 staining is useful for the classification of myeloid and lymphoid neoplasms as well as spindle cell neoplasms (particularly identification of gastrointestinal stromal tumor and hemangiosarcoma).
200ug/ml of recombinant MAb purified by Protein A/G. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0mg/ml.
Antibody Type:
Recombinant Monoclonal Antibody
Application Notes:
Immunohistochemistry (Formalin-fixed) (1-2ug/ml for 30 minutes at RT),(Staining of formalin-fixed tissues requires heating tissue sections in 10mM Tris with 1mM EDTA, pH 9.0, for 45 min at 95°C followed by cooling at RT for 20 minutes),Optimal dilutio
SDS-PAGE Analysis of Purified CD34 Recombinant Rabbit Monoclonal Antibody(HPCA1/8353R). Confirmation of Purity and Integrity of Antibody
Western Blot Analysis of Human Heart tissue lysate using CD34 Recombinant Rabbit Monoclonal Antibody (HPCA1/8353R).
