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V9881 Sigma

Vitronectin from bovine plasma

lyophilized powder, BioReagent, suitable for cell culture

Synonym: Serum spreading factor




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.


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.


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.

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Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Protocols & Articles


Plasma Derived Proteins and Enzymes

Despite their complexity, blood and plasma are abundant biological resources for the discovery of drug targets and biomarkers for human disease. It is estimated that plasma may contain as many as 40,...
BioFiles 2006, 1.5, 2.
Keywords: Applications, Gas chromatography, Type

The Cancer Stem Cell Hypothesis

Traditionally, cancer has been viewed as a disease in which environmental or endogenous events induce mutations to critical oncogenes and tumor suppressor genes within a normal cell. The clinical man...
Keywords: Apoptosis, Asymmetric synthesis, Cancer, Catalysis, Cell culture, Cell division, Cell proliferation, Cell signaling, Clinical, Degradations, Environmental, Gastrointestinal, Gene expression, Ligands, Phosphorylations, Poisons, Transcription, Transfection, transformation

Vitronectin Cell Attachment Protocol

From our library of Articles, Sigma-Aldrich presents Vitronectin Cell Attachment Protocol
George Sitterley
BioFiles 2008, 3.8, 13.
Keywords: Biofiles, Filtration, Sterilizations


Vitronectin is a glycoprotein present in plasma and tissues.1,2 Vitronectin is implicated in various biological processes. Together with fibronectin, vitronectin is one of the major cell adhesion pro...
George Sitterley
BioFiles 2008, 3.8, 13.
Keywords: Adhesion, Biofiles, Biological processes, Coagulation

Related Content


Keywords: Angiogenesis, Cancer, Eliminations, Gene expression, Growth factors, Ligands, Metabolic Pathways, Phosphorylations

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