Recombinant Mouse Angiopoietin-like Protein 4/ANGPTL4, CF

C-Terminal Fragment
Catalog # Availability Size / Price Qty
9797-AN-050
Recombinant Mouse Angiopoietin-like Protein 4/ANGPTL4 Binding Activity
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Recombinant Mouse Angiopoietin-like Protein 4/ANGPTL4, CF Summary

Product Specifications

Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its binding ability in a functional ELISA. When Recombinant Mouse Angiopoietin‑like Protein 4/ANGPTL4 is immobilized at 1 μg/mL, 100 μL/well, the concentration of LILRB2/CD85d/ILT4 Fc Chimera (Catalog # 2078-T4) that produces 50% of the optimal binding response is 0.09-0.54 μg/mL.
Source
Mouse myeloma cell line, NS0-derived mouse Angiopoietin-like Protein 4/ANGPTL4 protein
Leu169-Ser410, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Analysis
Leu169
Predicted Molecular Mass
28 kDa
SDS-PAGE
36-43 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.

9797-AN

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 500 μg/mL in PBS.
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.

Data Image

Binding Activity Recombinant Mouse Angiopoietin-like Protein 4/ANGPTL4 Binding Activity View Larger

When Recombinant Mouse Angiopoietin-like Protein 4/ANGPTL4 (Catalog# 9797-AN) is immobilized at 1 µg/mL, 100 µL/well, Recombinant Human LILRB2/CD85d/ILT4 Fc Chimera (Catalog # 2078-T4) binds with an ED50 of 0.09-0.54 µg/mL.

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 4/ANGPTL4

Angiopoietin-like 4 (ANGPTL4), also known as FIAF, FARP, and PGAR, is a 55 kDa glycoprotein secreted by the liver and fat tissue. It is structurally related to the angoipoietins and contains an N-terminal coiled coil domain and a C-terminal fibrinogen-like domain which can be proteolytically separated in vivo (1). Amino acid 169‑410 contains the C-terminal fibrinogen like domain within mouse ANGPTL4, and this domain shares 75% and 97% sequence identity with human and rat homologs, respectively. The coiled coil domain, which is not glycosylated, mediates the formation of variable sized disulfide-linked oligomers (2). This domain directly inhibits lipoprotein lipase, resulting in increased circulating triglyceride levels (3, 4). In humans, the N-terminal fragment and full length ANGPTL4 physically associate with HDL (4). In mouse, however, full length ANGPTL4 associates with HDL, while the N-terminal fragment associates with LDL (4). Circulating ANGPTL4 is decreased in type II diabetics with a subsequent loss of its normal plasma glucose lowering activity (5). Its expression in adipose tissue is induced by fasting and suppressed by feeding (6). In hypoxic areas, ANGPTL4 is induced in both vascular endothelial cells and tumor cells (7, 8). The N-terminal fragment can function as an angiogenesis inhibitor (7, 8). In contrast, the C-terminal fragment modulates cell adhesion through interactions with heparan sulfate proteoglycans, Integrins beta 1 and beta 5, Vitronectin, and Fibronectin, thereby promoting keratinocyte migration and wound healing (7, 9, 10). ANGPTL4 additionally enhances the survival of hematopoietic and mesenchymal stem cells (11, 12). The expression of an undersialylated form of ANGPTL4 in renal podocytes contributes to proteinuria and nephrotic syndrome (13). The immune-inhibitory receptor human leukocyte immunoglobulin-like receptor B2 (LILRB2) and its mouse orthologue paired immunoglobulin-like receptor (PIRB) have been identified as receptors for several ANGPTLs (14) including ANGPTL4.

References
  1. Zhu, P. et al. (2012) Biosci. Rep. 32:211.
  2. Ge, H. et al. (2004) J. Biol. Chem. 279:2038.
  3. Sukonina, V. et al. (2006) Proc. Natl. Acad. Sci. USA 103:17450.
  4. Mandard, S. et al. (2006) J. Biol. Chem. 281:934.
  5. Xu, A. et al. (2005) Proc. Natl. Acad. Sci. USA 102:6086.
  6. Kersten, S. et al. (2000) J. Biol. Chem. 275:28488.
  7. Cazes, A. et al. (2006) Circ. Res. 99:1207.
  8. Le Jan, S. et al. (2003) Am. J. Pathol. 162:1521.
  9. Goh, Y.Y. et al. (2010) Am. J. Pathol. 177:2791.
  10. Goh, Y.Y. et al. (2010) J. Biol. Chem. 285:32999.
  11. Blank, U. et al. (2012) Eur. J. Haematol. 89:198.
  12. Hou, M. et al. (2014) PLoS ONE 9:e85808.
  13. Clement, L.C. et al. (2011) Nat. Med. 17:117.
  14. Zhang, C.C. et al. (2012) Nature 485:656.
Entrez Gene IDs
51129 (Human); 57875 (Mouse); 362850 (Rat)
Alternate Names
Angiopoietin like Protein 4; angiopoietin-like 4; Angiopoietin-like Protein 4; ANGPTL4; ARP4fasting-induced adipose factor; FIAF; FIAFhepatic angiopoietin-related protein; Hepatic fibrinogen/angiopoietin-related protein; HFARP; HFARPANGPTL2; NL2; peroxisome proliferator-activated receptor (PPAR) gamma inducedangiopoietin-related protein; PGAR; PGARangiopoietin-related protein 4; pp1158; PPARG angiopoietin related protein

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