• Product nameHuman IGFBP3 ELISA Kit
    See all IGFBP3 kits
  • Detection methodColorimetric
  • Tests
    1 x 96 well plate
  • Sample type
    Cell culture supernatant, Serum, Plasma
  • Assay typeSandwich (quantitative)
  • Sensitivity
    < 80 pg/ml
  • Range
    74.07 pg/ml - 18000 pg/ml
  • Recovery

    97 %

    Sample specific recovery
    Sample type Average % Range
    Cell culture supernatant 97.46 86% - 107%
    Serum 97.46 85% - 105%
    Plasma 96.69 84% - 106%

  • Assay durationMultiple steps standard assay
  • Species reactivity
    Reacts with: Human
  • Product overview

    Abcam’s IGFBP3 Human ELISA (Enzyme-Linked Immunosorbent Assay) kit is an in vitro enzyme-linked immunosorbent assay for the quantitative measurement of Human IGFBP3 in serum, plasma and cell culture supernatants.

    This assay employs an antibody specific for Human IGFBP3 coated on a 96-well plate. Standards and samples are pipetted into the wells and IGFBP3 present in a sample is bound to the wells by the immobilized antibody. The wells are washed and biotinylated anti-Human IGFBP3 antibody is added. After washing away unbound biotinylated antibody, HRP-conjugated streptavidin is pipetted to the wells. The wells are again washed, a TMB substrate solution is added to the wells and color develops in proportion to the amount of IGFBP3 bound. The Stop Solution changes the color from blue to yellow, and the intensity of the color is measured at 450 nm.

  • Notes

    Optimization may be required with urine samples

  • Tested applicationsSuitable for: Sandwich ELISAmore details
  • PlatformMicroplate


  • RelevanceInsulin like growth factor binding protein 3 (IGFBP3) is a member of the superfamily of insulin like growth factor (IGF) binding proteins which include six high affinity IGF binding proteins (IGFBP) and at least four low affinity binding proteins referred to as IGFBP related proteins (IGFBPrP). The IGFBP members are cysteine rich proteins with conserved cysteine residues clustered in the amino terminal and the carboxy terminal regions of the molecule. The cDNA sequence encoding the mature human IGFBP3 is fused to the signal peptide of CD33. Human IGFBP3 is the major IGF binding protein in plasma where it exists in a ternary complex with IGFI or IGFII and an acid labile subunit. IGFBPs hold a central position in IGF ligand-receptor interactions through influences on both the bioavailability and distribution of IGFs in the extracellular environment. Insulin like growth factor binding protein 3 (IGFBP3) can modulate the mitogenic and metabolic effects of the insulin like growth factors (IGFs). Insulin like growth factor binding protein 3 (IGFBP3) is expressed in multiple tissues. The highest expression level is found in the non paranchymal cells of the liver. The expression levels are higher during extrauterine life and peak during puberty. Insulin like growth factors (IGFs) and IGF binding proteins (IGFBPs) play important roles in cell growth and differentiation. IGFBP3 is one of the factors in serum that is responsible for high serum induced apoptosis in PC3 cells, a prostate cancer cell line. IGFBP3 is important in controlling glucose homeostasis with increased urinary levels in type I diabetes with persistent microalbuminuria.
  • Cellular localizationSecreted
  • Alternative names
    • Acid stable subunit of the 140 K IGF complex
    • Binding protein 29
    • Binding protein 53
    • BP 53
    • BP53
    • Growth hormone dependent binding protein
    • IBP 3
    • IBP3
    • IGF binding protein 3
    • IGFBP 3
    • Insulin Like Growth Factor Binding Protein 3
    see all
  • Database links


Our Abpromise guarantee covers the use of ab100541 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
Sandwich ELISA Use at an assay dependent concentration.

Human IGFBP3 ELISA Kit images

  • Representative standard curve using ab100541


References for Human IGFBP3 ELISA Kit (ab100541)

This product has been referenced in:
  • Nedic O  et al. Detection and identification of oxidized insulin-like growth factor-binding proteins and receptors in patients with colorectal carcinoma. Free Radic Biol Med 65:1195-200 (2013). Read more (PubMed: 24051179) »

See 1 Publication for this product

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Thank you for your patient. I just had a response from my lab colleagues. They confirmed that all three kits were designed against the mature form of the protein (which is the full amino acid sequence minus the signalling peptide). As the epito...

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