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ECM001

Sigma-Aldrich

Fibronectin human

recombinant, expressed in HEK 293 cells, lyophilized powder, suitable for cell culture

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Synonym(s):
Fibronectin, CIG, Cold-insoluble globulin, FN
MDL number:
NACRES:
NA.75

biological source

human

Quality Level

recombinant

expressed in HEK 293 cells

sterility

sterile

assay

≥95% (SDS-PAGE)

form

lyophilized powder

mol wt

259.5 kDa (The protein migrates as a higher band on SDS-PAGE due to glycosylation.)

packaging

pkg of 200 μg

technique(s)

cell culture | mammalian: suitable

impurities

≤1 EU/μg endotoxin, tested

solubility

water: soluble

NCBI accession no.

UniProt accession no.

shipped in

ambient

storage temp.

−20°C

Gene Information

human ... FN1(2335)

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This Item
F0287F9911F0162
vibrant-m

ECM001

Fibronectin human

assay

≥95% (SDS-PAGE)

assay

>90% (SDS-PAGE)

assay

>90% (SDS-PAGE)

assay

≥90% (SDS-PAGE)

technique(s)

cell culture | mammalian: suitable

technique(s)

cell culture | mammalian: suitable

technique(s)

cell culture | mammalian: suitable

technique(s)

cell culture | mammalian: suitable

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

sterility

sterile

sterility

-

sterility

-

sterility

-

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

General description

Fibronectin (FN) is a glycoprotein with 5-9% carbohydrates present as N- and O-linked oligosaccharides. It belongs to the ligand glycoprotein family. The FN gene is localized to human chromosome 2q35. FN exists as two major isoforms, plasma-based soluble and extracellular matrix (ECM)-based insoluble form. Fibronectin structure comprises repeats of FNI, FNII and FNIII repeats. It also has fibrin-binding sites and exists as a dimer. Alternative splicing of the FN1 gene leads to the generation of many isoforms. This fibronectin protein is manufactured in human cells using an all-human production system with no serum. The human cells expression system allows human-like glycosylation and folding, and often supports better stability of the protein in culture.

Application

Epithelial cells, mesenchymal cells, neuronal cells, fibroblasts, neural crest cells, endothelial cells.
Recommended for use as a cell culture substratum at 1-5 μg/cm2 or 0.5-50 μg/ml. Optimal concentration depends on cell type as well as the application or research objectives.
Fibronectin human has been used for coating cell culture plates for culturing endothelial progenitor cells. It has also been used as a component of Dulbecco′s modified Eagle′s medium (DMEM) in the in vitro matrigel invasion assay of glioblastoma cells.

Biochem/physiol Actions

Fibronectin (FN) is essential for embryonic development and mediates cell adhesion and migration functions. It mediates apoptosis in nasopharyngeal carcinoma (NPC). The plasma FN regulates thrombosis. Fibronectin functions as a ligand for the integrin receptor family and contains collagen, glycoprotein and glycosaminoglycan binding sites. Mutation in the FNI gene leads to an imbalance in the soluble and insoluble forms of fibronectin leading to glomerular deposits in hereditary kidney disease, glomerulopathy. Missense mutations in the FN1 gene are implicated in the skeletal dysplasias disorder, Spondylometaphyseal dysplasias.

Features and Benefits

  • Human-derived fibronectin
  • Produced through recombinant expression in HEK 293 cells
  • Low endotoxin levels
  • Absence of bacterial contamination

Physical form

Supplied as a powder, lyophilized from CAPS buffered saline.

Analysis Note

The biological activity of recombinant human fibronectin was tested in culture by measuring the ability of immobilized fibronectin to support adhesion of CHO cells.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Articles

The extracellular matrix (ECM) and its attachment factor components are discussed in this article in relation to their function in structural biology and their availability for in vitro applications.

The extracellular matrix (ECM) is secreted by cells and surrounds them in tissues.

Extracellular matrix proteins such as laminin, collagen, and fibronectin can be used as cell attachment substrates in cell culture.

Protocols

Dilute fibronectin for cell attachment, varying per cell type. Coating protocol, products, and FAQs provided.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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