The gene FN1 (Fibronectin) is mapped to human chromosome 2q34. It is present as a soluble dimeric form in plasma. At the cell surface and in the extracellular matrix, it is present as a dimeric or multimeric form.
Anti-Fibronectin antibody produced in chicken is suitable for western blotting at a working dilution of 1:500 and for cell staining at a working dilution of 1:200. It is also suitable for indirect ELISA.
Biochem/physiol Actions
Fibronectin (FN1) is a glycoprotein that is involved in cell adhesion and migration processes, such as embryogenesis, wound healing, blood coagulation, host defense, and metastasis. It binds to cell surfaces and compounds, such as collagen, fibrin, heparin, fibulin, integrins, cell adhesive mac-2 binding protein (M2BP), cartilage oligomeric matrix protein (COMP), DNA, and actin. Fibronectin interaction with FLRG (Follistatin-related gene protein) and follistatin is important for human hematopoietic cell adhesiveness. It is associated with glomerulopathy with fibronectin deposits, an autosomal dominant disease. Polymorphism in gene is linked with increased risk of knee osteoarthritis. Human pathogens, Staphylococcus aureus and Streptococcus pyogenes, target fibronectin for adhesion to and invasion of host cells. Pigment epithelium-derived factor (PEDF) down-regulates fibronectin to suppress breast cancer metastasis.
Physical form
Solution in phosphate buffered saline containing 0.02% sodium azide.
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Proceedings of the National Academy of Sciences of the United States of America, 78(4), 2403-2406 (1981-04-01)
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International journal of cancer, 20(1), 1-5 (1977-07-15)
Fibronectin, a plasma protein immunologically identical with a major surface protein of normal fibroblasts, was found to bind to collagen and gelatin. A solid phase enzyme immunoassay was used for the binding tests. Collagen, gelatin or various control proteins were
The Journal of cell biology, 109(2), 903-914 (1989-08-01)
The adhesive extracellular matrix glycoprotein fibronectin (FN) is thought to play an important role in the cell migration associated with wound healing. Immunolocalization studies show abundant FN in healing wounds; however, these studies cannot define the cellular site(s) of FN
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