Key features and details
- Sensitivity: 80 pg/ml
- Range: 74.07 pg/ml - 18000 pg/ml
- Sample type: Cell culture supernatant, Plasma, Serum
- Detection method: Colorimetric
- Assay type: Sandwich (quantitative)
- Reacts with: Human
Product nameHuman IGFBP3 ELISA Kit
See all IGFBP3 kits
Sample typeCell culture supernatant, Serum, Plasma
Assay typeSandwich (quantitative)
Sensitivity< 80 pg/ml
Range74.07 pg/ml - 18000 pg/ml
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 reactivityReacts with: Human
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.
Optimization may be required with urine samples
Storage instructionsStore at -20°C. Please refer to protocols.
Components 1 x 96 tests 20X Wash Buffer Concentrate 1 x 25ml 320X HRP-Streptavidin Concentrate 1 x 200µl 5X Assay Diluent B 1 x 15ml Assay Diluent A 1 x 30ml Biotinylated anti-Human IGFBP3 (lyophilized) 2 vials IGFBP3 Microplate (12 x 8 wells) 1 unit Recombinant Human IGFBP3 Standard (lyophilized) 2 vials Stop Solution 1 x 8ml TMB One-Step Substrate Reagent 1 x 12ml
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.
- Acid stable subunit of the 140 K IGF complex
- Binding protein 29
- Binding protein 53
ab100541 has been referenced in 2 publications.
- Cong R et al. Maternal high-protein diet modulates hepatic growth axis in weaning piglets by reprogramming the IGFBP-3 gene. Eur J Nutr N/A:N/A (2019). PubMed: 31570976
- 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). PubMed: 24051179