Recombinant von Willebrand Factor / Factor VIII Related-Ag (Endothelial Marker) Antibody [MSVA-521R]

In Stock
Catalog Number Formulation Size Price
7450-RBM29-P0
Purified Ab with BSA and Azide
20ug
$324.50
7450-RBM29-P1
Purified Ab with BSA and Azide
100ug
$599.50
Flat Rate Domestic: $95 | Orders outside the US - Contact Us for Order Information | Ships next business day

Applications & Dilutions

Applications Tested Dillution Protocol Note
Immunohistochemistry (IHC)
1:50-1:100
Manual Protocol: Freshly cut sections should be used (less than 10 days between cutting and staining). Heat-induced antigen retrieval for 5 minutes in an autoclave at 121°C in pH 7.8 Target Retrieval Solution buffer. Apply the antibody at a dilution of 1:50 at 37°C for 60 minutes. Visualization of bound antibody by the EnVision Kit (Dako, Agilent) according to the manufacturer’s directions.

Summary

von Willebrand Factor (vWF) is a multimeric glycoprotein that is found in endothelial cells, plasma and platelets. It acts as a carrier protein for Factor VIII and promotes platelet adhesion and aggregation. vWF undergoes a variety of posttranslational modifications that influence the affinity and availability for Factor VIII, including cleavage of the propeptide and formation of N-terminal disulfide bonds. This antibody helps to establish the endothelial nature of some lesions of disputed histogenesis, e.g. Kaposi's sarcoma and cardiac myxoma. It is widely used for differentiating vascular lesions from those of other tissue differentiation within a panel of other vascular markers although not all tumors of endothelial differentiation contain this antigen.

Product Properties & Targets

Host
Rabbit
Applications
Species Reactivity
Isotype / Light Chain
IgG / Kappa
Cellular Localization
Extracellular matrix, Extracellular space, Secreted
Gene Name
VWF
Positive Control
Colon: A moderate to strong endothelial vWF immunostaining should be seen in a fraction of blood vessels.
Immunogen
Recombinant fragment of human vWF protein (aa1815-1939) (exact sequence is proprietary)
Alternate Names
von Willebrand factor, Coagulation Factor VIII, Factor VIII Related Antigen, F8VWF, von Willebrand Antigen 2, von Willebrand Disease (vWD)

Database Links

Entrez Gene ID
SwissProt

Additional Information

Clone
MSVA-521R
Chromosome Location
12p13.31
Mol. Weight of Antigen
250kDa
Expression System
HEK293 Cells

Functions

  • Important in the maintenance of hemostasis, it promotes adhesion of platelets to the sites of vascular injury by forming a molecular bridge between sub-endothelial collagen matrix and platelet-surface receptor complex GPIb-IX-V. Also acts as a chaperone for coagulation factor VIII, delivering it to the site of injury, stabilizing its heterodimeric structure and protecting it from premature clearance from plasma.

Key References

  • Motta, A. et al. 2009. J Biomater Sci Polym Ed. 20: 1875-1897.
  • Germann, B. et al. 2008. Pharmazie. 63: 303-307.

PubMed Links

Storage & Stability

Antibody with azide - store at 2 to 8°C. Antibody without azide - store at -20 to -80°C. Antibody is stable for 24 months. Non-hazardous. No MSDS required.

Limitations

This antibody is available for research use only and is not approved for use in diagnosis.

Supplied as

Ab produced in HEK293 cell mammalian-based expression system. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide.

Warranty

There are no warranties, expressed or implied, which extend beyond this description. Company is not liable for any personal injury or economic loss resulting from this product.
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