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Long name
Mouse Monoclonal Antibody against Human CD34 / Mucosialin, Clone: QBEnd-10
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Antigen
CD34
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Species reactivity
Human (Homo sapiens), Non-Human (Homo sapiens) Primates
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Negative species reactivity
Rat, Bovine, Canine (Dog), Sheep
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Clonality
Monoclonal Antibody (Mab)
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Clone
QBEnd-10
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Applications
FC, IP, WB, IHC(P), IHC(F), FUNC
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Immunogen
Human endothelial vesicles_x000D_
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Format conjugation
FITC
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Specificity
The antibody QBEnd-10 reacts with Class II epitope on CD34 (Mucosialin), a 110-115 kDa monomeric transmembrane phosphoglycoprotein expressed on hematopoietic progenitors cells and on the most pluripotential stem cells; it is gradually lost on progenitor cells. This antibody has been also used as an endothelial marker. _x000D_ HLDA V.; WS Code BP BP275 _x000D_ HLDA V.; WS Code E E038_x000D_ HLDA V.; WS Code M MA065_x000D_ HLDA V.; WS Code M MR09
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Research area
CD and Related Antigens (Human)
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Storage buffer
The reagent is provided in stabilizing phosphate buffered saline (PBS) solution containing 15mM sodium azide.
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Shipping and storage
Mouse Monoclonal Antibody against Human CD34 / Mucosialin, Clone: QBEnd-10 is transported on blue ice/ice packs and should be stored at temperatures between 1 and 5 degrees Celsius. Do not freeze! Avoid exposing the product to direct light, especially the conjugated antibodies as most conjugates are very sentitive to light.
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Background
CD34 is a highly glycosylated monomeric 111-115 kDa surface protein, which is present on many stem cell populations. It is a well established stem cell marker, though its expression on human hematopoietic stem cells is reversible. CD34 probably serves as a surface receptor that undergoes receptor-mediated endocytosis and regulates adhesion, differentiation and proliferation of hematopoietic stem cells and other progenitors. CD34 expression is likely to represent a specific state of hematopoietic development that may have altered adhering properties with expanding and differentiating capabilities in both in vitro and in vivo conditions.
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Purity
> 95% (by SDS-PAGE)
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Purification method
Purified by affinity chromatography
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References
_x000D_ _x000D_ _x000D_ And many other publications., *Traoré Y, Hirn J: Certain anti-CD34 monoclonal antibodies induce homotypic adhesion of leukemic cell lines in a CD18-dependent and a CD18-independent way. Eur J Immunol. 1994 Oct;24(10):2304-11._x000D_ , *Poblet E, Jimenez-Acosta F, Rocamora A: QBEND/10 (anti-CD34 antibody) in external root sheath cells and follicular tumors. J Cutan Pathol. 1994 Jun;21(3):224-8._x000D_ , *Grimsley PG, Amos TA, Gordon MY, Greaves MF: Rapid positive selection of CD34+ cells using magnetic microspheres coated with monoclonal antibody QBEND/10 linked via a cleavable disulphide bond. Leukemia. 1993 Jun;7(6):898-908._x000D_ , *Sutherland DR, Marsh JC, Davidson J, Baker MA, Keating A, Mellors A: Differential sensitivity of CD34 epitopes to cleavage by Pasteurella haemolytica glycoprotease: implications for purification of CD34-positive progenitor cells. Exp Hematol. 1992 Jun;20(5):590-9._x000D_ , *Kuzu I, Bicknell R, Harris AL, Jones M, Gatter KC, Mason DY: Heterogeneity of vascular endothelial cells with relevance to diagnosis of vascular tumours. J Clin Pathol. 1992 Feb;45(2):143-8._x000D_ , *Ramani P, Bradley NJ, Fletcher CD: QBEND/10, a new monoclonal antibody to endothelium: assessment of its diagnostic utility in paraffin sections. Histopathology. 1990 Sep;17(3):237-42., *Schlingemann RO, Rietveld FJ, de Waal RM, Bradley NJ, Skene AI, Davies AJ, Greaves MF, Denekamp J, Ruiter DJ: Leukocyte antigen CD34 is expressed by a subset of cultured endothelial cells and on endothelial abluminal microprocesses in the tumor stroma. Lab Invest. 1990 Jun;62(6):690-6.
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Properties
If you buy Antibodies supplied by Exbio they should be stored frozen at - 24°C for long term storage and for short term at + 5°C. Stem cell or hematopoietic marker. The most used affinity clone is QBEND10. We compare the affinity to this clone.
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About
Monoclonals of this antigen are available in different clones. Each murine monoclonal anibody has his own affinity specific for the clone. Mouse monoclonal antibodies are purified protein A or G and can be conjugated to FITC for flow cytometry or FACS and can be of different isotypes.
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French translation
anticorps
