Anti-Fibronectin antibody [Fn-3] (ab18265)

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Overview

  • Product name

    Anti-Fibronectin antibody [Fn-3]
    See all Fibronectin primary antibodies

  • Description

    Mouse monoclonal [Fn-3] to Fibronectin

  • Host species

    Mouse

  • Specificity

    Reacts with human cellular fibronectin, but not plasma fibronectin.

  • Tested applications

    Suitable for: ICC/IF, IP, IHC-Pmore details

  • Species reactivity

    Reacts with: Cow, Human

  • Immunogen

    Human fibronectin expressed by simian virus 40 transformed human mammary epithelial cells.

Properties

Applications

Our Abpromise guarantee covers the use of ab18265 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
ICC/IF Use a concentration of 1 µg/ml.
IP Use at an assay dependent concentration.
IHC-P Use at an assay dependent concentration.

Target

  • Function

    Fibronectins bind cell surfaces and various compounds including collagen, fibrin, heparin, DNA, and actin. Fibronectins are involved in cell adhesion, cell motility, opsonization, wound healing, and maintenance of cell shape. Involved in osteoblast compaction through the fibronectin fibrillogenesis cell-mediated matrix assembly process, essential for osteoblast mineralization. Participates in the regulation of type I collagen deposition by osteoblasts.
    Anastellin binds fibronectin and induces fibril formation. This fibronectin polymer, named superfibronectin, exhibits enhanced adhesive properties. Both anastellin and superfibronectin inhibit tumor growth, angiogenesis and metastasis. Anastellin activates p38 MAPK and inhibits lysophospholipid signaling.

  • Tissue specificity

    Plasma FN (soluble dimeric form) is secreted by hepatocytes. Cellular FN (dimeric or cross-linked multimeric forms), made by fibroblasts, epithelial and other cell types, is deposited as fibrils in the extracellular matrix. Ugl-Y1, Ugl-Y2 and Ugl-Y3 are found in urine.

  • Involvement in disease

    Glomerulopathy with fibronectin deposits 2

  • Sequence similarities

    Contains 12 fibronectin type-I domains.
    Contains 2 fibronectin type-II domains.
    Contains 16 fibronectin type-III domains.

  • Developmental stage

    Ugl-Y1, Ugl-Y2 and Ugl-Y3 are present in the urine from 0 to 17 years of age.

  • Post-translational
    modifications

    Sulfated.
    It is not known whether both or only one of Thr-2064 and Thr-2065 are/is glycosylated.
    Forms covalent cross-links mediated by a transglutaminase, such as F13A or TGM2, between a glutamine and the epsilon-amino group of a lysine residue, forming homopolymers and heteropolymers (e.g. fibrinogen-fibronectin, collagen-fibronectin heteropolymers).
    Phosphorylated by FAM20C in the extracellular medium.
    Proteolytic processing produces the C-terminal NC1 peptide, anastellin.

  • Cellular localization

    Secreted, extracellular space, extracellular matrix.
  • Information by UniProt

  • Database links

    • Alternative names

      • CIG antibody
      • Cold insoluble globulin antibody
      • Cold-insoluble globulin antibody
      • DKFZp686F10164 antibody
      • DKFZp686H0342 antibody
      • DKFZp686I1370 antibody
      • DKFZp686O13149 antibody
      • ED B antibody
      • Fibronectin 1 antibody
      • FINC antibody
      • FINC_HUMAN antibody
      • FN antibody
      • FN1 antibody
      • FNZ antibody
      • GFND antibody
      • GFND2 antibody
      • LETS antibody
      • Migration stimulating factor antibody
      • MSF antibody
      • Ugl-Y3 antibody
      see all

    Images

    • Immunocytochemistry/ Immunofluorescence - Anti-Fibronectin antibody [Fn-3] (ab18265)
      Immunocytochemistry/ Immunofluorescence - Anti-Fibronectin antibody [Fn-3] (ab18265)

      ICC/IF image of ab18265 stained HeLa cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab18265, 1µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-mouse IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

    References

    This product has been referenced in:

    • Wang J  et al. Long noncoding RNA homeobox A11 antisense promotes transforming growth factor ß1-induced fibrogenesis in cardiac fibroblasts. Mol Med Rep 19:2817-2824 (2019). Read more (PubMed: 30720066) »
    • Wong CH  et al. Bio-functionalized magnetic nanoparticles for the immunoassay of fetal fibronectin: a feasibility study for the prediction of preterm birth. Sci Rep 7:42461 (2017). Read more (PubMed: 28198381) »
    See all 5 Publications for this product

    Publishing research using ab18265? Please let us know so that we can cite the reference in this datasheet.

    Customer reviews and Q&As

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    1-2 of 2 Abreviews or Q&A

    Question

    What is a good positive control tissue?

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    Answer

    Thank you for your enquiry. Here is a reference that includes the information you need: Keen J et al. 1984. Mol. Biol. Med. 2:15-27 Pub Med ID:6083431 I hope this information helps, please do not hesitate to contact us if you need any more advice or information.

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    Question

    The above mentioned antibody can distinguish between the cellular and plasma FN. Hower neither the datasheet nor the references don't specify whether it recognises the EDA or EDB region (specific of cellular FN). Is there any possibility for your team to check, whether this is also specific to EDA as the IST-9 clone? If it isn't, then the suspicion is quite big, that it is EDB, which is recognised. If it is so, then Abcam could sell it as antibody against the Extra Domain B, being the only commercialised antibody of this kind. I think besides me, there are more scientists to use an EDB antibody. If for Abcam, there are no opportunity to check this, I can offer myself to make this assesment. We already have your EDA antibody to compare with. We have a well working silencing system for FN variants. I hope we can both benefit from this antibody!

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    Answer

    Thank you for your enquiry. The Fn-3 clone recognizes a determinant on cellular but not plasma fibronectin. I am assuming this is the EDB region, although this is not explicitly stated in the reference I have. I will send this reference to you in a separate email. I hope this information helps, please do not hesitate to contact us if you need any more advice or information.

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