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Catalog Number | orb1824202 |
---|---|
Category | Antibodies |
Description | 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, Peyer's 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). |
Species/Host | Rabbit |
Clonality | Recombinant |
Clone Number | HPCA1/8333R |
Tested applications | IHC-P |
Reactivity | Human |
Isotype | Rabbit IgG, kappa |
Immunogen | Recombinant full-length human HPCA1 protein was used as the immunogen for the CD34 antibody. |
Dilution range | Immunohistochemistry (FFPE): 1-2ug/ml for 30 min at RT |
Conjugation | Unconjugated |
Formula | 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced), 0.05% sodium azide |
Hazard Information | This CD34 antibody is available for research use only. |
UniProt ID | P28906 |
Storage | Aliquot the CD34 antibody and store frozen at -20°C or colder. Avoid repeated freeze-thaw cycles. |
Note | For research use only |
Expiration Date | 12 months from date of receipt. |
IHC staining of FFPE human kidney tissue with CD34 antibody (clone HPCA1/8333R). HIER: boil tissue sections in pH 9 10mM Tris with 1mM EDTA for 20 min and allow to cool before testing.
IHC staining of FFPE human lung tissue with CD34 antibody (clone HPCA1/8333R). HIER: boil tissue sections in pH 9 10mM Tris with 1mM EDTA for 20 min and allow to cool before testing.
IHC staining of FFPE human uterus tissue with CD34 antibody (clone HPCA1/8333R). HIER: boil tissue sections in pH 9 10mM Tris with 1mM EDTA for 20 min and allow to cool before testing.
FACS, IF, IHC-P, WB | |
Human, Rat | |
Mouse | |
Monoclonal | |
Unconjugated |
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