Our Abpromise guarantee covers the use of ab18963 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
WB Use a concentration of 0.5 - 1 µg/ml. Predicted molecular weight: 17 kDa.
ELISA Use a concentration of 2 - 3 µg/ml.


  • Function

    The heparin-binding fibroblast growth factors play important roles in the regulation of cell survival, cell division, angiogenesis, cell differentiation and cell migration. They are potent mitogens in vitro.
  • Sequence similarities

    Belongs to the heparin-binding growth factors family.
  • Cellular localization

    Secreted. Cytoplasm. Cytoplasm > cell cortex. Lacks a cleavable signal sequence. Within the cytoplasm, it is transported to the cell membrane and then secreted by a non-classical pathway that requires Cu(2+) ions and S100A13. Secreted in a complex with SYT1.
  • Information by UniProt
  • Database links

  • Alternative names

    • Acidic fibroblast growth factor antibody
    • aFGF antibody
    • Beta endothelial cell growth factor antibody
    • Beta-endothelial cell growth factor antibody
    • ECGF antibody
    • ECGF beta antibody
    • ECGF-beta antibody
    • ECGFA antibody
    • ECGFB antibody
    • Endothelial Cell Growth Factor alpha antibody
    • Endothelial Cell Growth Factor beta antibody
    • FGF 1 antibody
    • FGF alpha antibody
    • Fgf1 antibody
    • FGF1_HUMAN antibody
    • FGFA antibody
    • Fibroblast Growth Factor 1 Acidic antibody
    • Fibroblast growth factor 1 antibody
    • GLIO703 antibody
    • HBGF 1 antibody
    • HBGF-1 antibody
    • HBGF1 antibody
    • Heparin binding growth factor 1 antibody
    • Heparin binding growth factor 1 precursor antibody
    • Heparin-binding growth factor 1 antibody
    see all


  • Anti-FGF1 antibody (ab18963) at 1 µg/ml + Spinal Cord (Rat) Tissue Lysate at 10 µg

    Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution

    Predicted band size: 17 kDa
    Observed band size: 17 kDa
    Additional bands at: 20 kDa (possible post-translational modification)


ab18963 has not yet been referenced specifically in any publications.

Customer reviews and Q&As


I now have a bit more information to share with you. As discussed, Anti-FGF1 (ab58311) is raised against a fusion protein of FGF1 (with a well know purification tag) of ~45 kDa, and it is this fusion protein which has been expressed and detected in the western blot presented on the datasheet. I am sorry if this information is not presented very clearly on the datasheet. I will look into whether this can be updated. I have tried to identify a suitable alternative to the antibodies you have been using in order to increase the likelihood of detecting the endogenously expressed FGF1.  ab103577 seems like it would be the most likely candidate for Western blotting. This antibody has been raised against full length human FGF1 and has been used to detect endogenously expressed protein from human placenta tissue lysate with the 17 kDa band detected as expected. A non-specific band of around 90 kDa was also detected (presented on datasheet). Unfortunately this antibody has not been tested in any other application other than Western blotting and I cannot therefore guarantee that it will also work for your IHC experiments. Alternatively, the following antibodies have been characterised by IHC with paraffin embedded tissue(although Western blotting has only been performed with transiently expressed protein): ab117640: human placenta tissue ab76662: human Hepatocarcinoma tissue ab75928: human colon carcinoma tissue If you would be interested in trying any of these antibodies I can send it to you as a free of charge replacement of either of the antibodies that are currently not working for you. This antibody would of course also be covered by the Abpromise when performing the applications stated on the datasheet with human tissue and if the results obtained are still unsatisfactory you would again be entitled to a refund. If you have access to tissues with higher endogenous expression such as human placenta it may be beneficial to try this to rule out that it it a tissue specific issue. If none of the antibodies suggested are of interest to you I can provide a credit note or refund for both the antibodies directly. I hope this information has been helpful. I look forward to hearing how you would like to proceed.

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