Recombinant Human Angiopoietin-like 7 Biotin Protein, CF

Catalog # Availability Size / Price Qty
BT914
Recombinant Human Angiopoietin-like 7 Biotin Protein, CF Bioactivity
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Recombinant Human Angiopoietin-like 7 Biotin Protein, CF Summary

Purity
>95%, by SDS-PAGE with silver staining.
Endotoxin Level
<1.0 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to promote the expansion of E16 rat liver mononuclear cells in vitro, in the presence of Recombinant Mouse SCF/c‑kit Ligand (Catalog # 455-MC), Recombinant Mouse Thrombopoietin/Tpo (Catalog # 488-TO), and Recombinant Mouse Flt‑3 Ligand (Catalog # 427-FL). The ED50 for this effect is 50-200 ng/mL in the presence of a cross‑linking antibody, Mouse Anti-polyHistidine Monoclonal Antibody (Catalog # MAB050).
Source
Chinese Hamster Ovary cell line, CHO-derived human Angiopoietin-like Protein 7/ANGPTL7 protein
Gln27-Pro346, with a C-terminal 10-His tag
Accession #
N-terminal Sequence
Analysis
No results: Gln27 predicted, sequencing might be blocked
Structure / Form
Oligomer, Biotinylated on protein carbohydrates
Predicted Molecular Mass
39 kDa (unlabeled)
SDS-PAGE
>110 kDa, reducing conditions

Product Datasheets

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

BT914

Formulation Lyophilized from a 0.2 μm filtered solution in PBS and NaCl.
Reconstitution Reconstitute at 100 μg/mL in PBS.
Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Data Image

Bioactivity View Larger

Both Biotinylated rhANGPTL7 (Catalog # BT914) and unlabeled Recombinant Human Angiopoietin-like Protein 7/ANGPTL7 (Catalog # 914-AN) stimulate the expansion of E16-E18 rat liver mononuclear cellsin vitro, in the presence of Recombinant Mouse SCF/c-kit Ligand (Catalog # 455-MC), Recombinant Mouse Thrombopoietin/Tpo (Catalog # 488-TO), and Recombinant Mouse Flt-3 Ligand (Catalog # 427-FL). The ED50for this effect is 50-200 ng/mL in the presence of a cross-linking antibody, His Tag MAb (Catalog # MAB050). The similarity in activity highlights that the biotinylated protein is fully functional.

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.

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Background: Angiopoietin-like Protein 7/ANGPTL7

Angiopoietin-like 7 (ANGPTL7), also known as Corneal-Derived Transcript 6 (CDT6), is a secreted glycoprotein that is structurally related to the angiopoietins. Members of this protein family contain an N-terminal coiled coil domain and a C-terminal fibrinogen-like domain (1-3). ANGPTL7 shares 89% aa sequence identity with mouse and rat ANGPTL7. It is secreted as a 45-50 kDa monomer that forms disulfide-linked homotrimers and tetramers via the coiled coil domain (4, 5). ANGPTL7 is expressed in the corneal stroma, trabecular meshwork, and sclera and is elevated in glaucoma aqueous humor (3, 5). Its production is up-regulated in trabecular meshwork cells by glucocorticoids and TGF-beta and in cartilage by TNF-alpha (5-7). Over-expression of ANGPTL7 in trabecular meshwork cells inhibits the production of collagen and proteoglycans (8). When over-expressed in tumor cells it promotes collagen and proteoglycan deposition but inhibits tumor xenograft progression and tumor angiogenesis (4). ANGPTL7, when used in combination with SCF, Thrombopoietin, IGF-II, and FGF acidic, enhances the expansion and engraftment of human and mouse hematopoietic stem cells (9).

References
  1. Oike, Y. et al. (2009) Circ. J. 73:2192.
  2. Miida, T. and S. Hirayama (2010) Curr. Opin. Lipidol. 21:70.
  3. Peek, R. et al. (1998) Invest. Opthalmol. Visual Sci. 39:1782.
  4. Peek, R. et al. (2002) J. Biol. Chem. 277:686.
  5. Kuchtey, J. et al. (2008) Invest. Opthalmol. Visual Sci. 49:3438.
  6. Nehme, A. et al. (2009) BMC Med. Genomics 2:58.
  7. Stevens, A.L. et al. (2008) Arthritis Rheum. 58:489.
  8. Comes, N. et al. (2010) Genes Cells 16:243.
  9. Zhang, C.C. et al. (2006) Nat. Med. 12:240.
Long Name
Angiopoietin-like Protein 7
Entrez Gene IDs
10218 (Human); 654812 (Mouse); 714204 (Rhesus Macaque)
Alternate Names
angiopoietin-like 7; Angiopoietin-like factor; Angiopoietin-like Protein 7; angiopoietin-related protein 7; ANGPTL7; AngX; CDT6; CDT6angiopoietin-like factor (CDT6); Cornea-derived transcript 6 protein; dJ647M16.1; RP4-647M16.2

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