Human vWF-A2 Antibody

(1 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human vWF-A2 in direct ELISAs and Western blots.
  • Source
    Polyclonal Sheep IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant human vWF-A2
    Asp1498-Val1665
    Accession # NP_000543
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Detection of Human vWF‑A2 by Western Blot. Western blot shows lysates of HUVEC human umbilical vein endothelial cells. PVDF membrane was probed with 0.5 µg/mL of Sheep Anti-Human vWF‑A2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2764) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). Specific bands were detected for vWF‑A2 at approximately 250-460 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
  • Reconstitution
    Sterile PBS to a final concentration of 0.2 mg/mL.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • Stability & Storage
    Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
    • 12 months from date of receipt, -20 to -70 °C as supplied.
    • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: vWF-A2

von Willebrand Factor (vWF) is a large, multimeric glycoprotein made by endothelial cells and megakaryocytes. The pre-pro-vWF protein contains 2813 amino acids (aa), which consists of 22 aa signal peptide, 741 aa propeptide and mature vWF monomer of 2050 aa (1‑4). The pro-vWF undergoes dimerization in the endoplasmic reticulum (ER) through C-terminal “cysteine-knot” (CK) domain. The pro-vWF dimmers are transported to Golgi and form multimers by forming disulfide bond in amino‑terminal region of the mature form. The proteolytic processing of pro-region also occurs in Golgi. The matured vWF is stored in Weibel-Pallade bodies in endothelial cells and granules in megakaryocytes and platelets. The unusually-large vWF (ulvWF) multimers released from cells are very efficient in binding to platelets to form thrombus. The population of these highly active ulvWF multimers is controlled by a specific protease, ADAMTS13, which cleaves between residues Tyr1605 and Met1606 in the A2 domain of vWF. In the plasma, vWF appears as a series of large and intermediate multimers with molecular masses from several thousand to 500 kDa. vWF also performs hemostatic functions (3‑5). In a high shear-stressed environment, vWF undergoes conformational change to expose a binding site for glycoprotein Ib alpha. As a result, vWF facilitates aggregation of platelets. In addition to platelet binding, vWF binds coagulation factor VIII to increase the lifetime of FVIII in plasma. The purified rhvWF-A2 contains the A2 domain of vWF.

  • References:
    1. Sadler, J. E. (1998) Annu. Rev. Biochem. 67:395.
    2. Ruggeri, Z. M. (2003) Cur. Opin. Hemat. 10:142.
    3. Michiels, J. J. et al. (2006) Clin. Appl. Thromb. Hemost. 12:397.
    4. Groot, E. et al. (2007) Cur. Opin. Hemat. 14:284.
    5. Lenting, P. J. et al. (2007) J. Thromb. Haemos. 5:1353.
  • Long Name:
    von Willebrand Factor A2 Domain
  • Entrez Gene IDs:
    7450 (Human); 22371 (Mouse); 116669 (Rat)
  • Alternate Names:
    F8VWF; VWD; VWF von Willebrand factor; VWF; vWFA2; vWF-A2
Related Research Areas
Citations:

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citations: Showing 1 - 1

  1. Coronary angiogenic effect of long-term administration of Nigella sativa
    Authors: LI Al Asoom
    BMC Complement Altern Med, 2017;17(1):308.
    Species: Rat
    Sample Type: Whole Tissue
    Application: IHC
ExactaChIP Chromatin Immunoprecipitation Kits
Description Application Cat# Citations Images  

ExactaChIP Chromatin IP Buffer Panel

ChIP ECP001 2
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....
Isotype Controls
Description Application Cat# Citations Images  

Normal Sheep IgG Control

Ctrl 5-001-A 9
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....
Secondary Antibodies
Description Application Cat# Citations Images  

Sheep IgG HRP-conjugated Antibody

WB, Simple Western HAF016 14  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Sheep IgG NorthernLights™ NL557-conjugated Antibody

Flow, IHC, ICC NL010 3
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Sheep IgG NorthernLights™ NL637-conjugated Antibody

Flow, IHC, ICC NL011 5
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Sheep IgG NorthernLights™ NL493-conjugated Antibody

Flow, IHC, ICC NL012 2
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Sheep IgG (H+L) PE-conjugated Antibody

Flow F0126  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Sheep IgG Biotinylated Antibody

WB BAF016 2
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Sheep IgG (H+L) APC-conjugated Antibody

Flow F0127  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Sheep IgG VisUCyte HRP Polymer Antibody

IHC VC006  
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Sheep IgG (H+L) Fluorescein-conjugated Antibody

Flow F0125 1
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Donkey Anti-Sheep IgG (H+L) PerCP-conjugated Antibody

Flow F0128
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Have you used Human vWF-A2 Antibody?

Submit a review and receive a $25US/€18/£15/$25CAN amazon gift card if you include an image - $10US/€7/£6/$10CAN Amazon card for reviews without an image. Limited to verified customers in USA, Canada and Europe.

Order Details

Contact Information

Calculators

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

=
÷
R&D Systems Guarantee

Monoclonal
Antibody
Panels For
Screening

Learn More
Monoclonal Antibodies

Feedback

Customer Information