Human IGFBP-4 Antibody

Recombinant Monoclonal Antibody
Catalog # Availability Size / Price Qty

Save Up to 40% on RUO Reagents with BIOSPRING24 (See Details)

IGFBP-4 Inhibition of IGF-II-dependent Cell Proliferation and Neutralization by Human IGFBP-4 Antibody.
1 Image
Product Details
Supplemental Products

Human IGFBP-4 Antibody Summary

Species Reactivity
Detects human IGFBP-4 in direct ELISAs and Western blots.
Recombinant Monoclonal Mouse IgG1 Clone # 82314R
Protein A or G purified from cell culture supernatant
Mouse myeloma cell line NS0-derived recombinant human IGFBP‑4
Accession # AAA62670
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.


Recommended Concentration
Western Blot
1 µg/mL
Recombinant Human IGFBP‑4 (Catalog # 804-GB)

Human IGFBP-4 Sandwich Immunoassay

Recommended Concentration
ELISA Capture (Matched Antibody Pair)
2-8 µg/mL 

Use in combination with:

Detection Reagent: Human IGFBP‑4 Biotinylated Antibody (Catalog # BAF804)

Standard: Recombinant Human IGFBP-4 Protein, CF (Catalog # 804-GB)

Measured by its ability to neutralize IGFBP‑4 inhibition of IGF‑II-dependent proliferation in the MCF‑7 human breast cancer cell line. Karey, K. P. et al. (1988) Cancer Research 48:4083. The Neutralization Dose (ND50) is typically 20‑80 µg/mL in the presence of 0.3 µg/mL Recombinant Human IGFBP‑4 and 14 ng/mL Recombinant Human IGF‑II.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Neutralization IGFBP-4 Inhibition of IGF-II-dependent Cell Proliferation and Neutralization by Human IGFBP-4 Antibody. View Larger

IGFBP-4 Inhibition of IGF-II-dependent Cell Proliferation and Neutralization by Human IGFBP-4 Antibody. Recombinant Human IGFBP-4 (Catalog # 804-GB) inhibits Recombinant Human IGF-II (Catalog # 292-G2) induced proliferation in the MCF-7 human breast cancer cell line in a dose-dependent manner (orange line), as measured by Resazurin (Catalog # AR002). Inhibition of Recombinant Human IGF-II (14 ng/mL) activity elicited by Recombinant Human IGFBP-4 (0.3 µg/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Human IGFBP-4 Monoclonal Antibody (Catalog # MAB8041R). The ND50 is typically 20-80 µg/mL.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: IGFBP-4

Human IGF binding protein 4 (IGFBP-4) was isolated from human plasma based on its ability to bind immobilized IGF-I. Human IGFBP-4 cDNA encodes a 258 amino acid (aa) residue precursor protein with a predicted 21 aa residue signal peptide that is processed to generate the 237 aa residue mature human IGFBP-4. The human IGFBP-4 contains a potential N-linked glycosylation site and shares approximately 90% amino acid sequence identity with both the mouse and rat IGFBP-4. According to the nomenclature of IGFBPs defined at the 4th International Symposium of IGFs (1997, Tokyo), six high-affinity IGF binding proteins (IGFBP-1, -2, -3, 4, -5, -6), and four IGFBP-related proteins (IGFBPr-1, - 2, -3, -4) have been identified. All IGFBPs have a high cysteine content and share conserved cysteine residues that are clustered in the amino- and carboxy-terminal third of the molecule. IGFBPs have been shown to either inhibit or enhance the biological activities of IGF, or act in an IGF-independent manner. Post-translational modification of IGFBPs, including phosphorylation and proteolysis, have been shown to modify the affinities of the binding proteins for IGF and may indirectly regulate IGF actions.

  1. Jones, J.I. and D.R. Clemons (1995) Endocrine Rev. 16:3.
  2. Kelly, K.M. et al. (1996) Intl. J. Biochem. Cell Biol. 28:619.
  3. Kim, H-S. et al. (1997) Proc. Natl. Acad. Sci. USA 94:12981.
Long Name
Insulin-like Growth Factor Binding Protein 4
Entrez Gene IDs
3487 (Human); 16010 (Mouse)
Alternate Names
BP-4; HT29-IGFBP; IBP4insulin-like growth factor-binding protein 4; IGF-binding protein 4; IGFBP4; IGFBP-4; IGFBP-4IBP-4; insulin-like growth factor binding protein 4

Product Datasheets

You must select a language.



No product specific FAQs exist for this product, however you may

View all Antibody FAQs

Reviews for Human IGFBP-4 Antibody

There are currently no reviews for this product. Be the first to review Human IGFBP-4 Antibody and earn rewards!

Have you used Human IGFBP-4 Antibody?

Submit a review and receive an Amazon gift card.

$25/€18/£15/$25CAN/¥75 Yuan/¥1250 Yen for a review with an image

$10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen for a review without an image

Submit a Review