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Fibronectin human plasma

lyophilized powder, BioReagent, suitable for cell culture

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EC Number:
MDL number:

biological source

human plasma

Quality Level



product line



≥85% (SDS-PAGE)


lyophilized powder

mol wt

450 kDa


pkg of 5 x 5 mg
pkg of 1 mg
pkg of 2 mg
pkg of 5 mg


>1 mg/mL protein


cell culture | mammalian: suitable

surface coverage

1‑5 μg/cm2


HBSAG, none detected
HCV, none detected
HIV-1/HIV-2, none detected


H2O: 1 mg/mL at 37 °C (Store reconstituted solution in working aliquots at -20°C or lower.)

NCBI accession no.

UniProt accession no.

Binding Specificity

Peptide Source: Collagen

shipped in

dry ice

storage temp.


Gene Information

human ... FN1(2335)

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This Item









≥85% (SDS-PAGE)


≥95% (SDS-PAGE)






lyophilized powder


lyophilized powder





mol wt

450 kDa

mol wt


mol wt


mol wt

~450 kDa


pkg of 5 x 5 mg, pkg of 1 mg, pkg of 2 mg, pkg of 5 mg


pkg of 1 mg, pkg of 2 mg, pkg of 5 mg


pkg of 1 mg, pkg of 2 mg, pkg of 5 mg


pkg of 1 mg, pkg of 2 mg, pkg of 5 mg

General description

Fibronectin (FN) is a multifunctional glycoprotein, the gene of which is localized to human chromosome 2q34-36. This gene spans 75kb and contains 50 exons. The fibronectin structure consists of blocks of repeating peptide sequences that are homologous in nature and form functional unit arranged linearly on two subunit arms. It exists as two major isoforms, one soluble and one insoluble form. The former is present in plasma, whereas the insoluble form resides in tissues and extracellular matrix (ECM) of cartilage. There are around 20 different forms of fibronectin protein due to alternative splicing of a variable region and two type III exons called Extra Domains A and B.


Fibronectin from human plasma is used for the following applications:
  • Used in cell seeding and neuronal differentiation (as one of the components in expansion medium for the re-suspension of CBSCs (Cord blood stem cells) and is also used in differentiation medium)
  • Used in cell culture (the culture chamber was coated with fibronectin for the expression of HEK293 cells)
  • In-vitro fibronectin (FN) pulldown assays
  • Protein specificity
  • Used in cell migration study

Biochem/physiol Actions

Fibronectin (FN) plays an essential role in multiple biological functions such as, angiogenesis, cell migration cell-to-cell adhesion, cell-to-basement-membrane attachment, clot stabilization, embryogenesis, differentiation, wound healing, as well as binding of pathogen to mammalian cells and extracellular matrix. Studies in Chinese Han population show that mutations in this gene might be linked with susceptibility to knee osteoarthritis (OA). Splice variant extra domain-B (EDB) of FN is a hallmark of tumor angiogenesis, and with increased matrix stiffness there is an increase in the production of this isoform by endothelial cells. In colorectal cancer (CRC), EDA is linked with metastasis, vasculogenesis and tumorigenesis and promotes epithelial-mesenchymal transition.


The reconstituted solution should be stored in working aliquots at -20°C or lower. Vortexing, excessive agitation, or additoinal freezing and thawing of reconstituted fibronectin are not recommended.

Preparation Note

This product is lyophilized from 0.05 M Tris buffered saline at pH 7.5. It is soluble at 1 mg/mL in water, and should be allowed to dissolve for at least 30 minutes at 37°C. A small amount of undissolved material may remain, but it will not affect performance. The protein homogeneity is evaluated by immunoelectrophoresis, is endotoxin tested, and the source material was tested negative for HIV, hepatitis B and hepatitis C. In coating culture surfaces, fibronectin should be diluted in sterile balanced sterile salt solution and coated with minimal volume. Surface should then be air dried for 45 minutes at room temp and can be stored for 2-4 weeks at 2-8°C.


RESEARCH USE ONLY. This product is regulated in France when intended to be used for scientific purposes, including for import and export activities (Article L 1211-1 paragraph 2 of the Public Health Code). The purchaser (i.e. enduser) is required to obtain an import authorization from the France Ministry of Research referred in the Article L1245-5-1 II. of Public Health Code. By ordering this product, you are confirming that you have obtained the proper import authorization.

Storage Class Code

11 - Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Timothy E Quan et al.
Methods in molecular medicine, 135, 423-434 (2007-10-24)
Fibrocytes circulate in the peripheral blood, produce collagen and other matrix proteins, and express cell surface markers indicative of a hematopoetic origin distinguishing them from fibroblasts. Circulating fibrocytes were first identified in 1994 in a model system of wound repair
Fibronectin: a brief overview of its structure, function, and physiology
Proctor R A, et al.
Reviews of Infectious Diseases, 4, S317-S321 (1987)
Marcin Jurga et al.
Biomaterials, 32(13), 3423-3434 (2011-02-18)
Currently, there are no effective therapies to restore lost brain neurons, although rapid progress in stem cell biology and biomaterials development provides new tools for regeneration of central nervous system. Here we describe neurogenic properties of bioactive scaffolds generated by
Kerim B Kaylan et al.
Integrative biology : quantitative biosciences from nano to macro, 8(12), 1221-1231 (2016-11-02)
Carcinoma progression is influenced by interactions between epithelial tumor cells and components of their microenvironment. In particular, cell-extracellular matrix (ECM) interactions are known to drive tumor growth, metastatic potential, and sensitivity or resistance to therapy. Yet the intrinsic complexity of
Chia-Wen Chang et al.
Lab on a chip, 14(19), 3762-3772 (2014-08-07)
This paper reports a polydimethylsiloxane-polycarbonate (PDMS-PC) hybrid microfluidic device capable of performing cell culture under combinations of chemical and oxygen gradients. The microfluidic device is constructed of two PDMS layers with microfluidic channel patterns separated by a thin PDMS membrane.


Fibronectin (FN) is a multifunctional, extracellular plasma glycoprotein produced by hepatocytes that circulates at near micromolar concentration and assembles into extracellular matrix fibrils at cell surfaces along with locally produced cellular FN.

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Dilute fibronectin to the desired concentration. Optimum conditions for attachment are dependent on cell type and application. The typical coating concentration is 1 – 5 ug/cm2.Fibronectin coating protocol, products, and FAQs.

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