• USA Home
  • F0791 - Monoclonal Anti-Fibronectin antibody produced in mouse

F0791 Sigma

Monoclonal Anti-Fibronectin antibody produced in mouse

clone IST-3, ascites fluid



Related Categories Alphabetical Index, Antibodies, Antibodies for Cell Biology, Antibodies for Hematopoietic Stem Cells, Antibodies for Stem Cell Biology,
species reactivity   canine, rabbit, human, sheep, bovine, goat, chicken
application(s)   immunocytochemistry: suitable
  immunohistochemistry (frozen sections): suitable
  indirect ELISA: suitable
  indirect immunofluorescence: 1:50 using cultured human fibroblasts
  microarray: suitable
  radioimmunoassay: suitable
  western blot: suitable
clone   IST-3, monoclonal
antibody form   ascites fluid
isotype   IgG1
mol wt   antigen mol wt 240 kDa
contains   15 mM sodium azide
shipped in   dry ice
storage temp.   −20°C
Gene Information   human ... FN1(2335)
biological source   mouse
conjugate   unconjugated



human plasma fibronectin

General description

Fibronectin (FN) is an extracellular matrix protein composed of two nearly-identical disulfide-bound polypeptides with typical molecular weights of 220-280 kDa. Cellular fibronectin is structurally and antigenically similar to cold insoluble globulin from plasma and antibodies to either form usually cross-react. Careful analysis of the FN molecule indicates that it contains several functionally and structurally distinct domains which may bind to cell surfaces and to a variety of molecules such as collagen, heparin, gelatin, fibrin and DNA. FN’s play an important role in diverse biological phenomena including cell adhesion, cell migration, hemostasis and thrombosis, wound healing and the ability to induce a more normal phenotype in transformed cells.

Mouse monoclonal clone IST-3 anti-Human Fibronectin antibody recognizes an epitope located within the fourth type-three repeat of human plasma fibronectin. The antibody localizes plasma and cellular fibronectin both in its natural and denatured-reduced forms (240 kDa) using immunoblotting, RIA, ELISA, immunocytochemistry and immunohistochemistry. This product cross-reacts with goat, sheep, bovine, dog, rabbit and chicken fibronectin.


Mouse monoclonal clone IST-3 anti-Human Fibronectin antibody may be used for the localization of fibronectin using various immunochemical assays including ELISA, immunoblot, dot blot, RIA, immunocytochemistry and immunohistochemistry. It may be used for the specific labeling of fibronectin in cultured cells and in frozen tissue sections. Staining of formalin-fixed, paraffin-embedded sections may require prolonged proteolytic unmasking (e.g., by trypsin). Monoclonal antibodies reacting specifically with FN may be used to localize FN in human cell cultures, in tissue sections and in plasma. They may also be used for immunoaffinity purification and immunoprecipitation of cellular fibronectin. In addition, these antibodies may be used to specifically modulate the functional activity of FN.

Features and Benefits

Antibody Bioguarantee
Evaluate our antibodies with complete peace of mind. If the antibody does not perform in your application, we will issue a full credit or replacement antibody. Learn more.

Price and Availability

Antibody Explorer

Explore with Confidence

Biomedical Applications
Safety & Documentation

Safety Information

RIDADR  NONH for all modes of transport
WGK Germany  2
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, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

Related Content

Antibody Explorer | Buy Primary & Secondary Antibodies

Monoclonal and polyclonal primary antibodies are focused on cell biology, neurobiology and molecular biology. Secondary antibodies targeting multiple host’s IgG are conjugated to alkaline phosphatase...
Keywords: Amplification, Buffers, Cell biology, Enzyme-linked immunosorbent assay, Immunofluorescence, Immunohistochemistry, Inflammation, Molecular biology, Phosphorylations, Purification, Western blot

Peer-Reviewed Papers


Related Products

Technical Service:

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

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?