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CD34, human


Catalogue number: CD34-1

CloneQBEND/10
IsotypeIgG1,k
Units1 ml
HostMouse
Application IHC(P)
Background
The antibody clone QBEND/10 reacts with an epitope on endothelial cells and haematopoietic progenitor cells, which is not sensitive to neuraminidase but to chymopapain and glycoprotease (CD34 class II antibodies). It may be used for the detection of endothelial cells and haematopoietic progenitor cells in tissues, cell smears and cell cultures. The CD34 molecule is a glycoprotein (110 kDa), which is expressed as well by endothelial cells as by haematopoietic precursor cells (BFU-E, CFU-GM, CFU-Meg, CFU-Eo, CFU-osteoclasts and CFU-blasts) in human bone marrow. CD34 is the earliest marker of colony building cells in bone marrow. The molecule is heavily glycosylated in the N-terminal extracellular region and therefore sensitive to neuraminidase (target of CD34 class I antibodies). This region is followed by a globular Cys-rich domain. The cytoplasmic portion of the molecule contains sites for proteinkinase C and tyrosine phosphorylation. Human CD34 antigen (Epitope neuraminidase resistant , glycoprotease- and chymopapain-sensitive).

Positive Control
Tonsil, bone marrow

Pre-Treatment
No protease pre-treatment!, Pre-treatment with unmasking fluid G (Art. No. DE007) or unmasking fluid C (Art. No. DE000) at 90-100°C may be helpful.

Immunogen
Purified human endothelial vesicles

Purification Method
Antibody solution in stabilizing phosphate buffer pH 7.3. Contains 0.09 % sodium azide**. The volume is sufficient for at least 100 immunohistochemical tests (100 µl working solution / test). Use appropriate antibody diluent e.g. BIOLOGO Art .No. PU002.

Working Concentration
(liquid conc.) 1:10 - 1:20

Concentration
40 µg/ml

Incubation Time
60 min at RT

Secondary Reagents
We recommend the use of BIOLOGO's Universal Staining System DAB (Art. No. DA005) or AEC (Art.-No. AE005).

Product
Antibody solution in stabilizing phosphate buffer pH 7.3. Contains 0.09 % sodium azide**. The volume is sufficient for at least 100 immunohistochemical tests (100 µl working solution / test). Use appropriate antibody diluent e.g. BIOLOGO Art .No. PU002.

Applications
IHC(P)

Cross Reactivity
Human, Rhesus Monkey, no cross-reactivity with cattle, dog, rat and sheep

Storage
2-8°C

References
1. Civin C.I., Strauss L.C., Brovall C., Fackler M.J. , Schwartz J.F., Shaper J.H. (1984) Antigenic analysis of haematopoesis. III. A hematopoetic progenitor cell surface antigen defined by a monoclonal antibody raised against KG-Ia cells. J. Immunol. 133; 157-165. 2. Civin C.I., Trischmann T.M., Fackler M.J., Bernstein I.D., Bühring H.J., Campos L., et al. (1989) M7.1. Report on the CD34 cluster workshop. In: Kapp W. et al. Eds. Leucocyte Typing IV. White Cell Differentiation Antigens. Oxford, New York, Tokyo: Oxford University Press pp. 818-825. 3. Fina L. et al. (1990) Expression of the CD34 gene in vascular endothelial cells. Blood 75; 2417-2426. 4. Dercksen M.W., Daams G.M., de Haas M., von dem Borne A.E.G.K., and van der Schoot C.E. M10.2. Charakterization of the CD34 cluster. In: Schlossman S.F. et al. Eds. Leucocyte Typing V. White Cell Differentiation Antigens. Oxford, New York, Tokyo: Oxford University Press pp. 850-853.

Caution
*These antibodies are intended for in vitro research use only. They must not be used for clinical diagnostics and not for in vivo experiments in humans or animals. ** The preservative sodium azide is known to be poisonous and potentially hazardous to health. It should be handled only by trained staff. Despite of the product's low azide concentration it must be handled with care. Dispose according to regional rules!

Safety Datasheet(s) for this product:

CD34, human

$459.00

SKU: CD34-1 Categories: ,

Brand

Contact us

Exalpha Biologicals, Inc.
2 Shaker Road, Unit B101
Shirley, MA 01464
Phone: 978-425-1370
Email: info@exalpha.com

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