Mouse IGFBP-rp1/IGFBP-7 Antibody

Catalog # Availability Size / Price Qty
MAB2120
MAB2120-SP

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Citations (1)
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Mouse IGFBP-rp1/IGFBP-7 Antibody Summary

Species Reactivity
Mouse
Specificity
Detects mouse IGFBP‑rp1/IGFBP-7 in direct ELISAs and Western blots. In direct ELISAs and Western blots, this antibody does not cross-react with recombinant mouse (rm) IGFBP-1, -2, -3, -5, -6, rhIGFBP-4, or -7.
Source
Monoclonal Rat IgG2A Clone # 292909
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
S. frugiperda insect ovarian cell line Sf 21-derived recombinant mouse IGFBP‑rp1/IGFBP-7
Ser28-Leu281 (Arg94Lys)
Accession # A0A5E1
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.

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
Recombinant Mouse IGFBP-rp1/IGFBP‑7 (Catalog # 2120-B7)

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.

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
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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

Insulin-like growth factor (IGF) binding protein-related protein 1 (IGFBP-rp1), also known as IGF binding protein-7 (IGFBP-7) and Mac25 is a 31-37 kDa secreted glycoprotein that belongs to the IGFBP superfamily of molecules (1, 2). Members of this superfamily are characterized by the presence of 10-12 conserved cysteines in the first third of the molecule, and the partial conservation of an xCGCCxxC octapeptide motif that exists in an N-terminal IGFBP domain (1, 3). Mouse IGFBP-7 cDNA encodes a 281 amino acid (aa) precursor protein that contains a putative 25 aa signal peptide and a 256 aa mature region. The mature protein contains an N-terminal 43 aa IGFBP domain that is followed by a 52 aa Kazal-type serine proteinase inhibitor domain and a 105 aa C-terminal Ig-like C2-type domain (4, 5). The molecule is known to contain about 4 kDa of carbohydrate and believed to undergo phosphorylation (6). Mature mouse IGFBP-7 is 95% and 91% aa identical to mature rat and human IGFBP-7, respectively. Cells known to express IGFBP-7 include osteoblasts, select skeletal muscle fibers, visceral and vascular smooth muscle cells, breast epithelium, ciliated epithelium, renal tubular epithelium, astrocytes and oligodendroglia, and vascular endothelium in all tissues except brain (7). IGFBP-7 will bind both IGF-I and insulin, albeit at low affinity. When bound to IGF-I, it participates in growth promoting effects (8). Alternatively, IGFBP-7 by itself is an inhibitor of cell proliferation (6). Thus, its function is unclear. It is known to bind heparin, syndecan-1 and chemokines (8, 9). Based on human studies and aa conservation in relevant regions, mouse IGFBP-7 might be be expected to undergo proteolytic cleavage extracellularly (8). This will create an 8 kDa, 72 aa subunit (containing the IGFBP domain) that is disulfide-linked to a 25 kDa, 184 aa C-terminal subunit. Cleavage will reduce IGF-I bonding activity and the promotion of IGF-dependent cell proliferation.

References
  1. Hwa, V. et al. (1999) Endocr. Rev. 20:761. 
  2. Kim, H-S. et al. (1997) Proc. Natl. Acad. Sci. USA 94:12981. 
  3. Oh, Y. et al. (1996) J. Biol. Chem. 271:30322. 
  4. Kato, M.V. et al. (1996) Oncogene 12:1361. 
  5. Kato, M.V. (2000) Mol. Med. 6:126.
  6. Wilson, H-M. et al. (2002) Cell Growth Differ. 13:205.
  7. Degeorges, A. et al. (2000) J. Histochem. Cytochem. 48:747.
  8. Ahmed, S. et al. (2003) Biochem. Biophys. Res. Commun. 310:612.
  9. Nagakubo, D. et al. (2003) J. Immunol. 171:553.
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

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Citation for Mouse IGFBP-rp1/IGFBP-7 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.

1 Citation: Showing 1 - 1

  1. Comparative proteomics profiling of a phospholamban mutant mouse model of dilated cardiomyopathy reveals progressive intracellular stress responses.
    Authors: Gramolini AO, Kislinger T, Alikhani-Koopaei R, Fong V, Thompson NJ, Isserlin R, Sharma P, Oudit GY, Trivieri MG, Fagan A, Kannan A, Higgins DG, Huedig H, Hess G, Arab S, Seidman JG, Seidman CE, Frey B, Perry M, Backx PH, Liu PP, MacLennan DH, Emili A
    Mol. Cell Proteomics, 2007-11-30;7(3):519-33.
    Species: Mouse
    Sample Types: Tissue Homogenates
    Applications: Western Blot

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