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  • F6140 - Monoclonal Anti-Fibronectin, Cellular antibody produced in mouse

F6140 Sigma-Aldrich

Monoclonal Anti-Fibronectin, Cellular antibody produced in mouse

clone FN-3E2, ascites fluid



Related Categories Alphabetical Index, Antibodies, Antibodies for Cell Biology, Antibodies for Hematopoietic Stem Cells, Antibodies for Stem Cell Biology,
conjugate   unconjugated
clone   FN-3E2, monoclonal
biological source   mouse
application(s)   immunohistochemistry (formalin-fixed, paraffin-embedded sections): suitable
  immunohistochemistry (frozen sections): suitable
  immunoprecipitation (IP): suitable
  indirect immunofluorescence: 1:400 using cultured chicken fibroblasts
  radioimmunoassay: suitable
  western blot: suitable
species reactivity   chicken, human, mouse
mol wt   antigen 240 kDa
shipped in   dry ice
storage temp.   −20°C
antibody form   ascites fluid
isotype   IgM
Quality Level   200
antibody product type   primary antibodies
contains   15 mM sodium azide
UniProt accession no.   P02751
Gene Information   human ... FN1(2335)
mouse ... Fn1(14268)


General description

Monoclonal Anti-Cellular Fibronectin (mouse IgM isotype) is derived from the hybridoma produced the fusion of mouse myeloma cells and splenocytes from immunized mice. Fibronectin is an extracellular matrix protein composed of two nearly identical disulfide-bound polypeptides with typical molecular weights of 220-240 kDa. Cellular fibronectin is structurally and antigenically similar to cold insoluble globulin from plasma and polyclonal antibodies to either form usually cross-react. The protein contains several functionally and structurally distinct domains, which may bind to cell surfaces, collagen, heparin, etc.


The antibody labels cellular fibronectin in the pericellular matrix of chick embryo and mouse and human fibroblasts grown in tissue culture. It may be used for immunoaffinity purification of cellular fibronectin.


fibronectin antigen released in culture by a human breast cancer cell line


Monoclonal Anti-Fibronectin, Cellular antibody produced in mouse has been used in:
• immunoblot
• immunofluorescent microscopy
• immunocytochemistry


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Biochem/physiol Actions

Fibronectin is a soluble plasma protein that regulates tissue repair and thrombus formation. Insoluble fibronectin is expressed in basement membranes and connective tissue matrix and mainly modulates cell adhesion and migration. Alterations in fibronectin have been associated with microvascular thrombosis, disseminated intravascular coagulation, and atherosclerosis .

Fibronectin may enhance cell adhesion and spreading and affect the routes of cell migration both in vivo and in culture. It has been shown that upon malignant transformation many cells lose their surface bound fibronectin.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy


Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detection methods, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

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