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Von Willebrand Factor/vWF Cell Lysate | vWF cell lysate

Human Von Willebrand Factor/vWF CHO Overexpression Lysate

Gene Names
VWF; VWD; F8VWF
Applications
Western Blot
Synonyms
Von Willebrand Factor/vWF; Human Von Willebrand Factor/vWF CHO Overexpression Lysate; Human vWF CHO Cell Lysate (WB positive control); von Willebrand factor; Human F8VWF Overexpression Lysate; Human Von Willebrand Factor Overexpression Lysate; Human VWD Overexpression Lysate; vWF cell lysate
Ordering
For Research Use Only!
Host
CHO Cells
Form/Format
1x Sample Buffer (1x modified RIPA buffer+1x SDS loading buffer).
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Sequence Positions
2802aa
Sequence
Met1-Lys2813
Applicable Applications for vWF cell lysate
Western Blot (WB)
Application Notes
WB: Use at an assay dependent dilution.
Species
Human
Recommend Usage
1. Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube.2. Re-dissolve the pellet using 200uL pure water and boil for 2-5 min.
Sequence Construction
A DNA sequence encoding the pro form of human von Willebrand factor (AAB59458.1) (Met1-Lys2813) was expressed with a C-terminal polyhistidine tag.
Preparation Method
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors. Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
Preparation and Storage
Store at 4 degree C for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80 degree C for up to twelve months. Avoid repeated freeze-thaw cycles.
Samples are stable for up to twelve months from date of receipt.
Related Product Information for vWF cell lysate
Von Willebrand Factor (VWF) is a multimeric glycoprotein involved in hemostasis in blood, binds receptors on the surface of platelets and in connective tissue, thereby mediating the adhesion of platelets to sites of vascular injury. From studies it appears that VWF protein uncoils under these circumstances, decelerating passing platelets. VWF protein is deficient or defective in von Willebrand disease (VWD) and is involved in a large number of other diseases, including thrombosis, thrombotic thrombocytopenic purpura, Stroke, Heyde's syndrome, possibly hemolytic-uremic syndrome and so on.

This Human Von Willebrand Factor/vWF overexpression lysate was created in CHO Cells and intented for use as a Western blot (WB) positive control. Purification of Von Willebrand Factor/vWF protein from the overexpression lysate was verified.
References
Sadler JE. (1998) Biochemistry and genetics of von Willebrand factor. Annu Rev Biochem, 67: 395-424.Batlle J, et al. (2009) Von Willebrand factor/factor VIII concentrates in the treatment of von Willebrand disease. Blood Coagul Fibrinolysis. 20(2):89-100.Sadler JE. (2009) von Willebrand factor assembly and secretion. J Thromb Haemost. 7 Suppl 1:24-7.Auton M, et al. (2010) The mechanism of VWF-mediated platelet GPIbalpha binding. Biophys J. 99(4):1192-201.Bowen DJ. (2010) Sugar targets VWF for the chop. Blood. 115(13):2565.Lpez JA, et al. (2010) VWF self-association: more bands for the buck. Blood. 116(19):3693-4.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
UniProt Accession #
Molecular Weight
38,745 Da
NCBI Official Full Name
von Willebrand factor
NCBI Official Synonym Full Names
von Willebrand factor
NCBI Official Symbol
VWF
NCBI Official Synonym Symbols
VWD; F8VWF
NCBI Protein Information
von Willebrand factor
UniProt Protein Name
von Willebrand factor
Protein Family
UniProt Gene Name
VWF
UniProt Synonym Gene Names
F8VWF; vWF
UniProt Entry Name
VWF_HUMAN

NCBI Description

This gene encodes a glycoprotein involved in hemostasis. The encoded preproprotein is proteolytically processed following assembly into large multimeric complexes. These complexes function in the adhesion of platelets to sites of vascular injury and the transport of various proteins in the blood. Mutations in this gene result in von Willebrand disease, an inherited bleeding disorder. An unprocessed pseudogene has been found on chromosome 22. [provided by RefSeq, Oct 2015]

Uniprot Description

VWF: 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. Defects in VWF are the cause of von Willebrand disease type 1 (VWD1). A common hemorrhagic disorder due to defects in von Willebrand factor protein and resulting in impaired platelet aggregation. Von Willebrand disease type 1 is characterized by partial quantitative deficiency of circulating von Willebrand factor, that is otherwise structurally and functionally normal. Clinical manifestations are mucocutaneous bleeding, such as epistaxis and menorrhagia, and prolonged bleeding after surgery or trauma. Defects in VWF are the cause of von Willebrand disease type 2 (VWD2). A hemorrhagic disorder due to defects in von Willebrand factor protein and resulting in impaired platelet aggregation. Von Willebrand disease type 2 is characterized by qualitative deficiency and functional anomalies of von Willebrand factor. It is divided in different subtypes including 2A, 2B, 2M and 2N (Normandy variant). The mutant VWF protein in types 2A, 2B and 2M are defective in their platelet- dependent function, whereas the mutant protein in type 2N is defective in its ability to bind factor VIII. Clinical manifestations are mucocutaneous bleeding, such as epistaxis and menorrhagia, and prolonged bleeding after surgery or trauma. Defects in VWF are the cause of von Willebrand disease type 3 (VWD3). A severe hemorrhagic disorder due to a total or near total absence of von Willebrand factor in the plasma and cellular compartments, also leading to a profound deficiency of plasmatic factor VIII. Bleeding usually starts in infancy and can include epistaxis, recurrent mucocutaneous bleeding, excessive bleeding after minor trauma, and hemarthroses.

Protein type: Secreted; Extracellular matrix; Cell adhesion; Motility/polarity/chemotaxis; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 12p13.3

Cellular Component: extracellular matrix; proteinaceous extracellular matrix; endoplasmic reticulum; extracellular region; external side of plasma membrane

Molecular Function: integrin binding; collagen binding; identical protein binding; protein binding; protein homodimerization activity; protease binding; chaperone binding; protein N-terminus binding; immunoglobulin binding; glycoprotein binding

Biological Process: platelet activation; extracellular matrix organization and biogenesis; platelet degranulation; hemostasis; response to wounding; cell adhesion; liver development; blood coagulation; blood coagulation, intrinsic pathway; cell-substrate adhesion; protein homooligomerization; placenta development

Disease: Von Willebrand Disease, Type 3; Von Willebrand Disease, Type 1; Von Willebrand Disease, Type 2

Research Articles on vWF

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Product Notes

The vWF vwf (Catalog #AAA8114263) is a Cell Lysate produced from CHO Cells and is intended for research purposes only. The product is available for immediate purchase. The immunogen sequence is 2802aa. AAA Biotech's Von Willebrand Factor/vWF can be used in a range of immunoassay formats including, but not limited to, Western Blot (WB). WB: Use at an assay dependent dilution. Researchers should empirically determine the suitability of the vWF vwf for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. The amino acid sequence is listed below: Met1-Lys28 13. It is sometimes possible for the material contained within the vial of "Von Willebrand Factor/vWF, Cell Lysate" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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