Reactivity | BvSpecies Glossary |
Applications | Bioactivity |
Format | Carrier-Free |
Details of Functionality | Measured by its ability to support cell attachment and spreading when used as a substratum for cell culture. In this application, the recommended concentration for this effect is 1‑5 µg/cm2. Fibronectin can also be added in the media to support cell spreading at a concentration of 0.5-50 µg/mL. Optimal concentration depends on cell type as well as the application or research objectives. Measured by the ability of the immobilized protein to support the adhesion of B16‑F1 mouse melanoma cells. The ED50 for this effect is 10.0-100 ng/mL. |
Source | Bovine plasma-derived Fibronectin protein |
Protein/Peptide Type | Natural Proteins |
Gene | FN1 |
Purity | >90%, by SDS-PAGE under reducing conditions and visualized by silver stain. |
Endotoxin Note | <1.0 EU per 1 μg of the protein by the LAL method. |
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Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Buffer | Supplied as a 0.2 μm filtered solution in Tris-HCl, NaCl and Urea. |
Purity | >90%, by SDS-PAGE under reducing conditions and visualized by silver stain. |
Fibronectin is an extracellular matrix (ECM) component and is one of the primary cell adhesion molecules (1). It is composed of multiple homologous repeats and contains many functional domains. The occurrence of different isoforms is due to alternative mRNA splicing of the ED-A, ED-B and III-CS regions and subsequent post-translational modification. Although non-reactive with adhesion receptors in its soluble state, Fibronectin is highly adhesive when on the surface (2). Polymerization of Fibronectin into ECM must be tightly regulated to ensure appropriate adhesive proporties upon ECM formation. Because of its ability to interact with many ligands (e.g. cells, heparin, fibrin, collagen, DNA, immunoglobulin), Fibronectin plays an important role in normal morphogenesis, including cell adhesion, migration, differentiation, and specific gene expression (3 - 6).
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Bad news for stomach cancer: BAMBI protein inhibits gastric carcinoma via TGF-beta/epithelial-mesenchymal transition signaling By Jamshed Arslan Pharm.D. Gastric carcinoma is the second leading cause of cancer-related deaths worldwide. One of the key features of gastric carcinoma is acidosis, which promotes growth and metastasis of gastric ... Read full blog post. |
Alpha-smooth muscle actin and the modulation of endothelial and epithelial cell biology Actin is essential for a wide range of cell functions, ranging from cell division and chromatin remodeling to vesicle trafficking and maintenance of cellular structure. In fact, mislocalization of actin to cell junctions during development leads t... Read full blog post. |
Epithelial-Mesenchymal Transition (EMT) Markers Epithelial-Mesenchymal Transition (EMT) is the trans-differentiation of stationary epithelial cells into motile mesenchymal cells. During EMT, epithelial cells lose their junctions and apical-basal polarity, reorganize their cytoskeleton, undergo a... Read full blog post. |
Fibronectin: Organizing Cell Activity across the ECM Fibronectin is a glycoprotein found in the extracellular matrix (ECM) that binds to integrins and other components of the ECM such as collagen and fibrin. Under normal physiological conditions, fibronectin is an important factor in cell adhesion, grow... Read full blog post. |
Using the Laminin Antibody in Angiogenesis Research Laminin is one of a large number of proteins expressed on the basal laminar of the ECM (extracellular matrix). The laminin antibody database covers several proteins, which interact with integrins and other receptor proteins to support cellular differe... Read full blog post. |
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Gene Symbol | FN1 |