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Technical Data Sheet

FM0221

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Fibronectin
Mouse Monoclonal IgG1
Price
Size
Species Reactivity
MW

$295
100 μl
Hu
250 kDa

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Western blot image of human plasma purified fibronectin (lane 1), human breast tissue (lane 2), human A549 cells (lane 3), and LNCaP cells (lane 4). The blot was probed with mouse monoclonal anti-fibronectin FM0221 at 1:500.

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Enlarge

Immunocytochemical labeling of fibronectin in paraformaldehyde fixed human MeWo cells. The cells were labeled with mouse monoclonal anti-fibronectin (clone M022). The antibody was detected using goat anti-mouse Ig DyLight® 594.

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Application
Dilution


ELISA
1:2000


ICC
1:100


IP
1:100


WB
1:500



End user should determine optimal dilution for their particular applications and experiments.Western blot membranes were incubated with diluted antibody in 5% non-fat milk, PBS, 0.04% Tween20 for 1hour at room temperature.
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Background
In the extracellular matrix, fibronectin provides essential connections to cells through interaction with integrins and other receptors that regulate cell adhesion, migration, and differentiation. Fibronectin is secreted as a large dimeric glycoprotein with subunits that range in size from 230 kDa to 270 kDa. Fibronectin is composed of three different types of modules termed type I, II, and III repeats, as well as two fibrin binding and two heparin binding domains, a collagen interaction region and cell attachment domain. The diverse set of binding domains provides fibronectin with the ability to interact simultaneously with other fibronectin molecules, other ECM components (e.g., collagens and proteoglycans), cell surface receptors, and extracellular enzymes. Plasma fibronectin (soluble dimeric form) is secreted by hepatocytes, while cellular fibronectin (dimeric or cross-linked multimeric forms), made by fibroblasts, epithelial and other cell types, is deposited as fibrils in the extracellular matrix. Fibronectin fibrilogenesis has important functions during tissue development, and during pathological progression of tissues and wound healing.


Background References
Schwarzbauer J & DeSimone D (2011) CSH Persp Biol. 1;3(7).
Wang Y & Ni H. (2016) Cell Mol Life Sci. 73(17):3265.
Zollinger AJ & Smith ML (2017) Matrix Biol. 60-61:27.
Immunogen
Clone (M022) was generated from a proprietary antigen related to native human fibronectin from the MeWo melanoma cell line.
Buffer and Storage
Mouse monoclonal antibody purified with protein G chromatography is supplied in 100µl phosphate-buffered saline, 50% glycerol, 1 mg/ml BSA, and 0.05% sodium azide. Store at –20°C. Stable for 1 year.
Specificity
Clone M022 mouse monoclonal antibody detects a 250 kDa* protein on SDS-PAGE immunoblots of native or denatured human A549, MeWo, and LNCaP cells, as well as human plasma fibronectin. The antibody also works for immunoprecipitation, immunohistochemistry, and immunocytochemistry, as well as binds fibronectin in live cells and unfixed extracellular matrix.

*All molecular weights (MW) are confirmed by comparison to Bio-Rad Rainbow Markers and to western blot mobilities of known proteins with similar MW.
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