Recombinant Human Angiopoietin-like 3 Protein, CF

R&D Systems, part of Bio-Techne | Catalog # 3829-AN

R&D Systems, part of Bio-Techne
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3829-AN-050
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Key Product Details

Source

Sf 21 (baculovirus)

Accession #

Q9Y5C1

Structure / Form

Oligomer

Conjugate

Unconjugated

Applications

Bioactivity, Inhibition Activity

View all Angiopoietin-like Protein 3/ANGPTL3 Proteins and Enzymes »

Product Specifications

Source

Spodoptera frugiperda, Sf 21 (baculovirus)-derived human Angiopoietin-like Protein 3/ANGPTL3 protein
Ser17-Glu460, with a C-terminal 10-His tag

Purity

>90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<1.0 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Ser17

Predicted Molecular Mass

53.2 kDa

SDS-PAGE

54-59 kDa and 28-30 kDa, reducing conditions

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 40-200 ng/mL in the presence of a cross-linking Mouse Anti-polyHistidine Monoclonal Antibody (Catalog # MAB050).

Measured by its ability to inhibit lipoprotein lipase activity. Yoshida, K. et al. (2002) J. Lipid Res. 43:1770.
The IC50 value under conditions in which Recombinant Human Lipoprotein Lipase/LPL Protein, CF (Catalog # 9888-LL) and p-nitrophenyl butyrate are present in 0.1 M sodium phosphate, 0.15 M NaCl, 0.5% Triton® X-100, pH 7.2, is <15 µg/mL.

Reviewed Applications

Read 1 review rated 5 using 3829-AN in the following applications:

Formulation, Preparation and Storage

3829-AN
Formulation Lyophilized from a 0.2 μm filtered solution in PBS, NaCl and CHAPS.
Reconstitution
Reconstitute at 250 μg/mL in sterile PBS.

Reconstitution Buffer Available:
Size / Price
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Shipping The product is shipped at ambient temperature. 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.

Background: Angiopoietin-like Protein 3/ANGPTL3

ANGPTL3 is a secreted glycoprotein that is structurally related to the angiopoietins (1-3). Mature human ANGPTL3 contains an N-terminal coiled coil domain and a C‑terminal fibrinogen-like domain (4). ANGPTL3 is expressed in the liver from early in development through adulthood (4, 5). Full length ANGPTL3 circulates in the plasma as do proteolytically separated N- and C-terminal fragments containing the coiled-coil domain and fibrinogen-like domains (6, 7). ANGPTL3 is found as 70 kDa, 50 kDa, and 32 kDa species (5, 6). ANGPTL3 directly inhibits lipoprotein lipase (LPL) and endothelial lipase (EL), enzymes responsible for hydrolyzing circulating triglycerides and HDL phospholipids (8, 9). This activity requires a putative heparin-binding motif which is N-terminal to the coiled-coil domain (6). Proteolytic removal of the fibrinogen-like domain from the N-terminal fragment serves to activate ANGPTL3 and increase its ability to inhibit LPL in vitro and function in vivo (6). ANGPTL3 promotes an increase in circulating triglyceride levels without altering VLDL or HDL secretion or uptake (6-8). ANGPTL3 knockout mice are hypolipidemic and have elevated LPL activity (10). ANGPTL3 expression in vivo is up-regulated by LXR agonists and down-regulated by insulin, leptin, and agonists of TR beta or PPAR beta (11-14). Dysregulated ANGPTL3 expression and elevated plasma triglyceride levels are characteristic of some strains of obese and diabetic mice (7, 8, 12). ANGPTL3 does not bind Tie1 or Tie2, but its fibrinogen-like domain interacts with integrin alphaV beta3 to induce endothelial cell adhesion, migration, and neovascularization (15). ANGPTL3, secreted by fetal liver, also promotes the expansion of hematopoietic stem cells (16). Mature human ANGPTL3 shares 24%-30% amino acid (aa) sequence identity with ANGPTL1, 2, 4, 5, 6, and 7. It shares 77% aa sequence identity with mouse ANGPTL3.

References

  1. Li, C. (2006) Curr. Opin. Lipidol. 17:152.
  2. Oike, Y. et al. (2004) Int. J. Hematol. 80:21.
  3. Kersten, S. (2005) Biochem. Soc. Trans. 33:1059.
  4. Conklin, D. et al. (1999) Genomics 62:477.
  5. Ge, H. et al. (2005) J. Lipid Res. 46:1484.
  6. Ono, M. et al. (2003) J. Biol. Chem. 278:41804.
  7. Koishi, R. et al. (2002) Nat. Genet. 30:151.
  8. Shimizugawa, T. et al. (2002) J. Biol. Chem. 277:33742.
  9. Shimamura, M. et al. (2007) Arterioscler. Thromb. Vasc. Biol. 27:366.
  10. Koster, A. et al. (2005) Endocrinology 146:4943.
  11. Inaba, T. et al. (2003) J. Biol. Chem. 278:21344.
  12. Shimamura, M. et al. (2004) Biochem. Biophys. Res. Commun. 322:1080.
  13. Fugier, C. et al. (2006) J. Biol. Chem. 281:11553.
  14. Matsusue, K. et al. (2006) Mol. Cell Endocrinol. 256:23.
  15. Camenisch, G. et al. (2002) J. Biol. Chem. 277:17281.
  16. Zhang, C.C. et al. (2006) Nat. Med. 12:240.

Alternate Names

AGNPT5, Ang-5, Angiopoietin-5, ANGPTL3

Entrez Gene IDs

27329 (Human); 30924 (Mouse); 102136264 (Cynomolgus Monkey)

Gene Symbol

ANGPTL3

UniProt

Q9Y5C1 (Human)

Additional Angiopoietin-like Protein 3/ANGPTL3 Products

Product Documents for Recombinant Human Angiopoietin-like 3 Protein, CF

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