• Product nameAnti-IGFBP3 antibody
    See all IGFBP3 primary antibodies
  • Description
    Rabbit polyclonal to IGFBP3
  • SpecificityRecognizes human IGFBP 3. Slight crossreactivity with other IGF binding proteins: IGFBP 1: ~10%, IGFBP 2: <0.2%, IGFBP 4: <0.2%, IGFBP 5: <0.2%.
  • Tested applicationsSuitable for: WB, IPmore details
  • Species reactivity
    Reacts with: Human
    Does not react with: Rat, Horse, Cow, Pig
  • Immunogen

    Recombinant full length protein (Human IGFBP 3 expressed in CHO cells).


Our Abpromise guarantee covers the use of ab4248 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 1/250 - 1/1000. Predicted molecular weight: 40 kDa.
IP Use at an assay dependent dilution.


  • FunctionIGF-binding proteins prolong the half-life of the IGFs and have been shown to either inhibit or stimulate the growth promoting effects of the IGFs on cell culture. They alter the interaction of IGFs with their cell surface receptors.
  • Tissue specificityExpressed by most tissues. Present in plasma.
  • Sequence similaritiesContains 1 IGFBP N-terminal domain.
    Contains 1 thyroglobulin type-1 domain.
  • Developmental stageIGFBP3 levels are higher during extrauterine life and peak during puberty.
  • DomainThe thyroglobulin type-1 domain mediates interaction with HN.
  • Post-translational
    Phosphorylation sites are present in the extracelllular medium.
  • Cellular localizationSecreted.
  • Information by UniProt
  • Database links
  • Alternative names
    • Acid stable subunit of the 140 K IGF complex antibody
    • Binding protein 29 antibody
    • Binding protein 53 antibody
    • BP 53 antibody
    • BP53 antibody
    • Growth hormone dependent binding protein antibody
    • IBP 3 antibody
    • IBP-3 antibody
    • IBP3 antibody
    • IBP3_HUMAN antibody
    • IGF binding protein 3 antibody
    • IGF-binding protein 3 antibody
    • IGFBP 3 antibody
    • IGFBP-3 antibody
    • IGFBP3 antibody
    • Insulin Like Growth Factor Binding Protein 3 antibody
    • Insulin-like growth factor binding protein 3 precursor antibody
    • Insulin-like growth factor-binding protein 3 antibody
    see all

References for Anti-IGFBP3 antibody (ab4248)

This product has been referenced in:
  • Walker G  et al. Insulin-like growth factor binding proteins IGFBP3, IGFBP4, and IGFBP5 predict endocrine responsiveness in patients with ovarian cancer. Clin Cancer Res 13:1438-44 (2007). Read more (PubMed: 17332286) »

See 1 Publication for this product

Product Wall

Thank you for contacting us. We are happy to provide quote for 400 micro-litre of this antibody. The concentration of this antibody was not determined so we will be unable to give you quote for 400 µg. We generally do not determine the concentratio...

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Application Immunocytochemistry/ Immunofluorescence
Sample Human Cell (fibroblast)
Specification fibroblast
Fixative Formaldehyde
Permeabilization Yes - 0.5% triton for 5 min
Blocking step BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 4% · Temperature: 20°C

Abcam user community

Verified customer

Submitted Jan 18 2008

Thank you for your patience in awaiting a response. Having discussed this issue with my colleagues and the originator of the product. The following may explain the route cause of the problem I have been told that in all cases, the IGFBP's are "stick...

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