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Recombinant Human IGFBP-rp1/IGFBP-7 Protein, CF

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When Recombinant Human IGFBP-rp1/IGFBP-7 (Catalog #10163-B7) is used at 500 ng/mL, 100 μL/well, Recombinant Human CCL21/6Ckine (Catalog # 366‑6C) binds with an ED50 of 2‑12 ng/mL.
When Recombinant Human IGFBP-rp1/IGFBP-7 (Catalog #10163-B7) is used at 500 ng/mL, 100 μL/well, Recombinant Human CCL21/6Ckine (Catalog # 366‑6C) binds with an ED50 of 2‑12 ng/mL.
2 µg/lane of Recombinant Human IGFNP-rp1/IGFBP-7 (Catalog # 10163-B7) was resolved withSDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie®Blue staining, showing major bands at ...read more

Product Details

Summary
Reactivity HuSpecies Glossary
Applications Bioactivity
Format
Carrier-Free

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Recombinant Human IGFBP-rp1/IGFBP-7 Protein, CF Summary

Details of Functionality
Measured by its binding ability in a functional ELISA. When Recombinant Human IGFBP-rp1/IGFBP-7 is used at 500 ng/mL (100 μL/well), the concentration of Recombinant Human CCL21/6Ckine (Catalog # 366-6C) that produces 50% optimal binding response is 2-12 ng/mL.
Source
E. coli-derived human IGFBP-rp1/IGFBP-7 protein
Ser27-Leu282
Accession #
N-terminal Sequence
Ser27
Protein/Peptide Type
Recombinant Proteins
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Dilutions
  • Bioactivity
Theoretical MW
26 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
29-34 kDa, under reducing conditions

Packaging, Storage & Formulations

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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS.
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Reconstitution Instructions
Reconstitute at 500 μg/mL in PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Human IGFBP-rp1/IGFBP-7 Protein, CF

  • 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

Background

IGFBP-rp1, also known as IGFBP-7, 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 IGFBP1 through 5. Human and mouse IGFBP-rP1 are highly homologous. 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 up-regulated 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).
  1. Hwa, V. et al. (1999) Endocrinology Rev. 20:761.
  2. Nagakubo, D. et al. (2003) J. Immunol. 171:553.
  3. Ahmed, S. et al. (2003) Biochem. Biophys. Res. Commun. 310:612.

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