Human IGFBP-rp1/IGFBP-7 Antibody

Catalog #: MAB13341 Datasheet / COA / SDS

Recombinant Monoclonal Antibody

Catalog #	Availability	Size / Price	Qty
MAB13341-100
MAB13341-SP

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human IGFBP-rp1/IGFBP-7 Antibody Summary

Species Reactivity

Human

Specificity

Detects human IGFBP-rp1 in direct ELISAs.

Source

Recombinant Monoclonal Goat IgG Clone # 40012B

Purification

Protein A or G purified from cell culture supernatant

Immunogen

Mouse myeloma cell line NS0-derived recombinant human IGFBP-rp1
Arg98-Arg277
Accession # AAA16187

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.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Immunohistochemistry

1-25 µg/mL

See below

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

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IGFBP‑rp1/IGFBP‑7 in Human Pancreas. IGFBP-rp1/IGFBP-7 was detected in immersion fixed paraffin-embedded sections of human pancreas using Goat Anti-Human IGFBP-rp1/IGFBP-7 Monoclonal Antibody (Catalog # MAB13341) at 1.7 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to islet cell cytoplasm. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

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-rp1/IGFBP-7

IGFBP-rp1, also known as Mac25/Angiomodulin (AGM), tumor-derived adhesion factor (TAF) and prostacyclin-stimulating factor (PSF), is a secreted protein that contains three protein domain modules. Human IGFBP-rp1 cDNA encodes 282 amino acid (aa) residue precursor protein with a putative 26 aa signal peptide. Mature IGFBP-rp1 is a glycosylated protein with an N-terminal IGFBP domain, followed by a Kazal-type serine proteinase inhibitor domain and a C-terminal
immunoglobulin-like C2-type domain. The similarity of IGFBP-rp1 with the IGFBPs is confined to the N-terminal IGFBP domain, which contains all 12 of the conserved cysteine residues found in IGFBP-1 through 5. Human and mouse IGFBP-rp1 are highly homologous. Discounting a segment of 43 aa near the N-terminus that is missing in the mouse homologue, human and mouse IGFBP-rp1 share 94% aa sequence identity. IGFBP-rp1 is expressed in many normal tissues and in cancer cells. It is abundantly expressed in high endothelial venules (HEVs) of blood vessels in the secondary lymphoid tissues. The expression of IGFBP-rp1 is upregulated in senescing epithelial cells and by retinoic acid. IGFBP-rp1 binds IGF and insulin with very low affinity and has been shown to enhance the mitogenic actions of IGF and insulin. IGFBP-rp1 also has IGF/insulin-independent activities. It interacts with heparan sulfate proteoglycans, type IV collagen, and specific chemokines.
IGFBP‑rp1 supports weak cell adhesion, promotes cell spreading on type IV collagen, and stimulates the production of the potent vasodilator PGI₂. It modulates tumor cell growth and has also been implicated in angiogenesis. IGFBP-rp1 is proteolytically cleaved between lysine 97 and alanine 98. Cleaved IGFBP-rp1 has enhanced cell attachment activity but can no longer bind IGF/insulin (1-3).

References

Hwa, V. et al. (1999) Endocrinology Rev. 20:761.
Nagakubo, D. et al. (2003) J. Immunol. 171:553.
Ahmed, S. et al. (2003) Biochem. Biophys. Res. Commun. 310:612.

Long Name

Insulin-like Growth Factor Binding Protein Related Protein 1

Entrez Gene IDs

3490 (Human); 29817 (Mouse)

Alternate Names

angiomodulin; FSTL2; IBP-7; IGFBP7; IGFBP-7; IGFBP-7PGI2-stimulating factor; IGFBP-7v; IGFBPrp1; IGFBP-rp1; insulin-like growth factor binding protein 7; insulin-like growth factor-binding protein 7; MAC25 protein; Mac25; MAC25IGF-binding protein 7; Prostacyclin-stimulating factor; PSF; PSFAGM; TAF; Tumor-derived adhesion factor