V8379

Sigma-Aldrich

Vitronectin from human plasma

lyophilized powder, BioReagent, suitable for cell culture

Synonym(s):
Serum spreading factor
CAS Number:
MDL number:
NACRES:
NA.75

Quality Level

biological source

human plasma

sterility

non-sterile

product line

BioReagent

form

lyophilized powder

mol wt

A subunit 75 kDa
B subunit 65 kDa

packaging

pkg of 50 μg

application(s)

cell culture | mammalian: suitable

surface coverage

0.1 μg/cm2

solubility

water: soluble 0.050 mg/mL, clear, colorless

UniProt accession no.

shipped in

ambient

storage temp.

2-8°C

Gene Information

human ... VTN(7448)

Related Categories

Packaging

50 μg in glass bottle

Application

Vitronectin can be used with cells with integrin receptors that bind vitronectin, including platelets, endothelial cells, melanoma cells, and osteosarcoma. It is recommended as a cell culture substratum at 0.1 μg/cm2. Optimal conditions for attachment depend on cell line and application.

Biochem/physiol Actions

Vitronectin binds to glycosaminoglycans, is incorporated as an inhibitor to the membrane cytolytic attack complex of the complement system, has interaction with thrombin and antithrombin III during coagulation, and may play a role in the coagulation pathway.

Components

Vitronectin is a glycoprotein present in plasma and tissues, and is one of the major cell adhesion proteins, along with fibronectin, in plasma. The N-terminal residues of vitronectin are identical to somatomedin B and are followed by an R-G-D sequence that interacts with a specific cell-surface receptor. The central domain of vitronectin is enriched with hydrophobic residues. Closer to the C-terminus, it has an arginine rich region that allows for heparin binding activity.

Caution

The lyophilized product should be stored desiccated at 2-8°C. Under these conditions it is stable for at least 2 years. Aliquots should be stored at -20°C or -70°C, but repeated freezing and thawing should be avoided.

Preparation Note

This product is supplied as a cell culture tested lyophilized powder from buffered saline. It is recommended to use polypropylene vessels during handling, due to the strong affinity of vitronectin for hydrophilic surfaces. Reconstitution of this product can be done with 1 mL of water per vial. The stock solution should then be filter-sterilized using a 0.2μm membrane and aliquoted and frozen for long term storage.

storage_class_code

13 - Non Combustible Solids

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

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