CD34 (Hematopoietic Stem Cell & Endothelial Marker) Antibody
Mouse Monoclonal Antibody [Clone QBEnd/10 + HPCA1/763 ]
|Application ||IHC, IF, FC|
|Other Accession||947, 374990|
|Isotype||Mouse / IgG's|
|Clone Names||QBEnd/10 + HPCA1/763|
|Other Names||Hematopoietic progenitor cell antigen CD34, CD34, CD34|
|Storage||Store at 2 to 8°C.Antibody is stable for 24 months.|
|Precautions||CD34 (Hematopoietic Stem Cell & Endothelial Marker) Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Possible adhesion molecule with a role in early hematopoiesis by mediating the attachment of stem cells to the bone marrow extracellular matrix or directly to stromal cells. Could act as a scaffold for the attachment of lineage specific glycans, allowing stem cells to bind to lectins expressed by stromal cells or other marrow components. Presents carbohydrate ligands to selectins.|
|Cellular Location||Membrane; Single-pass type I membrane protein|
|Tissue Location||Selectively expressed on hematopoietic progenitor cells and the small vessel endothelium of a variety of tissues|
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Provided below are standard protocols that you may find useful for product applications.
This MAb recognizes a single chain, transmembrane, heavily glycosylated protein of 90-120kDa, which is identified as CD34. Its expression is a hallmark for identifying pluripotent hematopoietic stem or progenitor cells. Its expression is gradually lost as lineage committed progenitors differentiate. CD34 is a marker of choice for staining blasts in acute myeloid leukemia. In addition, CD34 is expressed by soft tissue tumors, such as solitary fibrous tumor and gastrointestinal stromal tumor. Its expression is also found in vascular endothelium. Additionally, it appears that proliferating endothelial cells express this molecule more than the non-proliferating endothelial cells. Anti-CD34 labels > 85% of angiosarcoma and Kaposi s sarcoma, but with a lower specificity.
Felshow DM et al. Blood 97:3768-3775 (2001). | Ramani P; Bradley NJ; Fletcher CD. QBEND/10, a new monoclonal antibody to endothelium: assessment of its diagnostic utility in paraffin sections. Histopathology, 1990, 17:237-42. | Sato T et al. Blood 94:2548-2554 (1999). |
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