Anti-vWF Antibody, clone 1B21, ZooMAb® Rabbit Monoclonal
SIGMA/ZRB7356 - recombinant, expressed in HEK 293 cells
Synonym: vWF
Product Type: Chemical
Immunohistochemistry (Paraffin) Enhanced Validation-Recombinant Antibody Technology Formalin Fixed Paraffin Embedded (FFPE) negative control (A) and human tonsil (B) tissue sections were prepared using heat-induced epitope retrieval (HIER). Immunostaining was performed using a 1:100 dilution of Cat. No. ZRB7356, Anti-vWF, clone 1B21 ZooMAb® Rabbit Monoclonal. Reactivity was detected using a Goat Anti-Rabbit and DAB. Membranous/ECM staining was observed in areas surrounding blood vessels of human tonsil tissue sections.
Immunohistochemistry (Paraffin) Enhanced Validation-Recombinant Antibody Technology Formalin Fixed Paraffin Embedded (FFPE) negative control (A) and human tonsil (B) tissue sections were prepared using heat-induced epitope retrieval (HIER). Immunostaining was performed using a 1:100 dilution of Cat. No. ZRB7356, Anti-vWF, clone 1B21 ZooMAb® Rabbit Monoclonal. Reactivity was detected using a Goat Anti-Rabbit and DAB. Membranous/ECM staining was observed in areas surrounding blood vessels of human tonsil tissue sections.
Immunohistochemistry (Paraffin) Enhanced Validation-Recombinant Antibody Technology Formalin Fixed Paraffin Embedded (FFPE) negative control (A) and human tonsil (B) tissue sections were prepared using heat-induced epitope retrieval (HIER). Immunostaining was performed using a 1:100 dilution of Cat. No. ZRB7356, Anti-vWF, clone 1B21 ZooMAb® Rabbit Monoclonal. Reactivity was detected using a Goat Anti-Rabbit and DAB. Membranous/ECM staining was observed in areas surrounding blood vessels of human tonsil tissue sections.
Immunocytochemistry Enhanced Validation-Recombinant Antibody Technology Immunofluorescent analysis of HUVEC cell line was performed using a 1:100 dilution of Cat. No. ZRB7356, Anti-vWF, clone 1B21 ZooMAb® Rabbit Monoclonal and visualized with a Goat Anti-Rabbit secondary antibody conjugated to Alexa Fluor® 488 (Green). Actin filaments have been labeled with phalloidin (Red). Nucleus is stained with DAPI (Blue). This antibody positively stains the cytoplasm.
Western Blotting Enhanced Validation-Recombinant Antibody Technology Lysate from human platelets was probed with Cat. No. ZRB7356, Anti-vWF, clone 1B21 ZooMAb® Rabbit Monoclonal (1:1,000 dilution). Proteins were visualized using a Donkey Anti-Rabbit IgG secondary antibody conjugated to HRP and a chemiluminescence detection system. Arrow indicates vWF (~280 kDa).
12 Principles of Green Chemistry: Principle 1—Waste Prevention. This product has a smaller environmental footprint through reduction of waste in the manufacturing process.
12 Principles of Green Chemistry: Principle 4—Designing Safer Chemicals
Chemical products should be designed to affect their desired function while minimizing their toxicity.
Chemical products should be designed to affect their desired function while minimizing their toxicity.
12 Principles of Green Chemistry: Principle 6—Design for Energy Efficiency. This product was re-engineered to utilize less energy in the manufacturing process.
| antibody form | purified antibody |
| antibody product type | primary antibodies |
| biological source | rabbit (recombinant) |
| clone | 1B21, monoclonal |
| recombinant monoclonal | |
| conjugate | unconjugated |
| enhanced validation | recombinant expression Learn more about Antibody Enhanced Validation  |
| form | lyophilized |
| greener alternative category | Aligned |
| greener alternative product characteristics | Waste Prevention Designing Safer Chemicals Design for Energy Efficiency Learn more about the Principles of Green Chemistry . |
| isotype | IgG |
| mol wt | calculated mol wt 309.27 kDa |
| observed mol wt ~280 kDa | |
| packaging | antibody small pack of 25 μL |
| product line | ZooMAb® learn more |
| recombinant | expressed in HEK 293 cells |
| shipped in | ambient |
| species reactivity | human |
| storage temp. | 2-8°C |
| technique(s) | immunocytochemistry: suitable using 1:100 |
| immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable using 1:100 | |
| western blot: suitable using 1:1,000 | |
| UniProt accession no. | P04275  |
| Application: | Anti-vWF, clone 1B21 ZooMAb, Cat. No. ZRB7356, is a Rabbit Monoclonal Antibody that specifically targets human von Willebrand factor and has been tested for use in Immunocytochemistry, Immunohistochemistry (Paraffin), and Western Blotting. |
| Application: | Immunohistochemistry (Paraffin) Analysis: A 1:100 dilution from a representative lot detected vWF in human tonsil tissue sections. Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected vWF in HUVEC. |
| Disclaimer: | Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals. |
| General description: | We are committed to bringing you greener alternative products, which adhere to one or more of The 12 Principles of Green Chemistry.This antibody is Preservative-free, produced without the harm or sacrifice of animals and exceptionally stable to allow for ambient shipping and storage if needed and thus aligns with "Waste Prevention", "Designing Safer Chemicals" and "Design for Energy Efficiency". Click here for more information. |
| General description: | ZooMAb antibodies represent an entirely new generation of recombinant monoclonal antibodies. Each ZooMAb antibody is manufactured using our proprietary recombinant expression system, purified to homogeneity, and precisely dispensed to produce robust and highly reproducible lot-to-lot consistency. Only top-performing clones are released for use by researchers. Each antibody is validated for high specificity and affinity across multiple applications, including its most commonly used application. ZooMAb antibodies are reliably available and ready to ship when you need them. Learn more about ZooMAb here. |
| Immunogen: | Full length purified native von Willebrand factor from human plasma. |
| Legal Information: | ZooMAb is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Physical form: | Purified recombinant rabbit monoclonal antibody IgG, lyophilized in PBS with 5% Trehalose, normal appearance a coarse or translucent resin. Contains no biocide or preservatives, such as azide, or any animal by-products. Larger pack sizes provided as multiples of 25 μL. |
| Reconstitution: | 30 μg/mL after reconstitution at 25 μL. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type. |
| Specificity: | Clone 1B21 is a ZooMab rabbit recombinant monoclonal antibody that specifically detects human von Willebrand factor. |
| Storage and Stability: | Recommend storage of lyophilized product at 2-8°C; Before reconstitution, micro-centrifuge vials briefly to spin down material to bottom of the vial; Reconstitute each vial by adding 25 μL of filtered lab grade water or PBS; Reconstituted antibodies can be stored at 2-8°C, or -20°C for long term storage. Avoid repeated freeze-thaws. |
| Target description: | von Willebrand factor (UniProt: P04275; also known as vWF) is encoded by the VWF (also known as F8VWF) gene (Gene ID:7450) in human. vWF is a multimeric plasma glycoprotein that is synthesized by endothelial cells and plays an important in the maintenance of hemostasis. It is synthesized with a signal peptide (aa 1-22), which is subsequently cleaved off in the mature form, which is cleaved into von Willebrand antigen 2 (aa 23-763) and vWF (aa 764-2813). vWF is known to promote 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. vWF 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. Mutations in VWF gene are linked to von Willebrand diseases 1-3 that are common hemorrhagic disorders caused by impaired platelet aggregation. Two isoforms of vWF have been described that are produced by alternative splicing. This ZooMAb recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352203 |