Human IGFBP-4 Antibody

Catalog # Availability Size / Price Qty
AF804
AF804-SP
IGFBP‑4 in Human Placenta.
2 Images
Product Details
Citations (4)
FAQs
Supplemental Products
Reviews (1)

Human IGFBP-4 Antibody Summary

Species Reactivity
Human
Specificity
Detects human IGFBP‑4 in direct ELISAs and Western blots. In direct ELISAs, approximately 50% cross-reactivity with recombinant mouse IGFBP-4 is observed, and less than 1% cross-reactivity with recombinant human (rh) IGFBP-1, rhIGFBP-2, rhIGFBP-3, rhIGFBP-5 and rhIGFBP-6 is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
Mouse myeloma cell line NS0-derived recombinant human IGFBP‑4
Asp22-Glu258
Accession # AAA62670
Formulation
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.

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Human IGFBP‑4 (Catalog # 804-GB)
Immunohistochemistry
5-15 µg/mL
See below
Neutralization
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 12-60 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

Immunohistochemistry IGFBP-4 antibody in Human Placenta by Immunohistochemistry (IHC-P). View Larger

IGFBP‑4 in Human Placenta. IGFBP-4 was detected in immersion fixed paraffin-embedded sections of human placenta (chorionic villi) using 5 µg/mL Goat Anti-Human IGFBP-4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF804) overnight at 4 °C. Before incubation with the primary antibody tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained with the Anti-Goat HRP-AEC Cell & Tissue Staining Kit (red; Catalog # CTS009) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

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). 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 Goat Anti-Human IGFBP-4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF804). The ND50 is typically 12-60 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

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
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.

References
  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.

x

Citations for Human IGFBP-4 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

4 Citations: Showing 1 - 4
Filter your results:

Filter by:

  1. EWS-FLI-1 creates a cell surface microenvironment conducive to IGF signaling by inducing pappalysin-1
    Authors: P Jayabal, PJ Houghton, Y Shiio
    Genes Cancer, 2017;8(11):762-770.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot
  2. IGFBP-4 and -5 are expressed in first-trimester villi and differentially regulate the migration of HTR-8/SVneo cells.
    Authors: Crosley, Erin J, Dunk, Caroline, Beristain, Alexande, Christians, Julian K
    Reprod Biol Endocrinol, 2015;12(0):123.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC-P
  3. Fetal baboon sex-specific outcomes in adipocyte differentiation at 0.9 gestation in response to moderate maternal nutrient reduction.
    Authors: Tchoukalova Y, Krishnapuram R, White U, Burk D, Fang X, Nijland M, Nathanielsz P
    Int J Obes (Lond), 2014;38(2):224-30.
    Species: Primate - Papio cynocephalus (Yellow Baboon)
    Sample Types: Whole Cells
    Applications: Western Blot
  4. The role of matrix metalloproteinase-7 in redefining the gastric microenvironment in response to Helicobacter pylori.
    Authors: McCaig C, Duval C, Hemers E, Steele I, Pritchard DM, Przemeck S, Dimaline R, Ahmed S, Bodger K, Kerrigan DD, Wang TC, Dockray GJ, Varro A
    Gastroenterology, 2006;130(6):1754-63.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot

FAQs

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

View all Antibody FAQs

Isotype Controls

Reconstitution Buffers

Secondary Antibodies

Reviews for Human IGFBP-4 Antibody

Average Rating: 3 (Based on 1 Review)

5 Star
0%
4 Star
0%
3 Star
100%
2 Star
0%
1 Star
0%

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

Filter by:


Human IGFBP-4 Antibody
By Natalie Haywood on 04/10/2019
Application: WB Sample Tested: HUVEC human umbilical vein endothelial cells Species: Human