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Recombinant Human GITR Ligand Alexa Fluor® 647 Protein

Catalog #: AFR6987 Datasheet / COA / SDS
TNFSF18 (GCN4-IZ) (CHO-expressed)
Catalog # Availability Size / Price Qty
AFR6987-020
Flow cytometry analysis for Recombinant Human GITRL HA-tag Alexa Fluor® 647 staining on Anti Human GITRL Monoclonal Antibody conjugated beads.
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Recombinant Human GITR Ligand Alexa Fluor® 647 Protein Summary

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Product Specifications

Purity
>95%, 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.
Activity
Measured by flow cytometry for its ability to bind anti-human GITR Ligand/TNFSF18 antibody conjugated beads. The concentration of Recombinant Human GITR Ligand/TNFSF18 (GCN4-IZ) Alexa Fluor® 647 (Catalog # AFR6987) that produces 50% of the binding response is 0.200-2.00 ng/mL.
Source
Chinese Hamster Ovary cell line, CHO-derived human GITR Ligand/TNFSF18 protein
HA
(YPYDVPDYA)		GCN4-IZHuman GITR Ligand
(Glu52-Ser177)
Accession # Q9UNG2.3
N-terminusC-terminus
Accession #
Q9UNG2.3
N-terminal Sequence
Analysis
Tyr
Structure / Form
Labeled with Alexa Fluor® 647
Excitation Wavelength: 650 nm
Emission Wavelength: 668 nm
Predicted Molecular Mass
19.6 kDa (monomer)
SDS-PAGE
20-27 kDa, under reducing conditions.

Product Datasheets

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AFR6987

Product Datasheet
COA
SDS

AFR6987

Formulation Supplied as a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Shipping The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Protect from light. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 6 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after opening.
  • 3 months, -20 to -70 °C under sterile conditions after opening.

Scientific Data

Flow Cytometry View Larger

Streptavidin coated beads conjugated to biotinylated Anti Human GITRL (BAM6943) were stained with the indicated concentrations of Recombinant Human GITRL HA-tag Alexa Fluor® 488 (Catalog # AFR6987).

SDS-PAGE View Larger

2 μg/lane of Recombinant Human GITR Ligand/TNFSF18 (GCN4-IZ) Alexa Fluor® 647 Protein (Catalog # AFR6987) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 20-27 kDa.

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Background: GITR Ligand/TNFSF18

GITR Ligand, also known as TNFSF18 and TL6, is an approximately 30 kDa type II transmembrane glycoprotein in the TNF superfamily (1). Human GITR Ligand consists of a 50 amino acid (aa) cytoplasmic domain, a 21 aa transmembrane segment, and a 128 aa extracellular domain (ECD) (2, 3). Within the ECD, human GITR Ligand shares 56% and 60% aa sequence identity with mouse and rat GITR Ligand, respectively. GITR Ligand is expressed on antigen presenting cells,
CD4-CD8- double negative thymic precursors, vascular endothelial cells, neurons, and in the eye (4-11). Its expression is transiently up‑regulated by proinflammatory stimulation (4, 8, 11). The binding of GITR Ligand to GITR on mouse CD25+ Treg cells permits the reactivation of T cells from Treg-induced suppression, although this does not appear to occur in humans (5, 9, 12-14). GITR Ligand binding to GITR additionally provides a co‑stimulatory signal to activated CD4+  and CD8+ T cells and NK cells (5, 6, 15, 16). This interaction also induces reverse signaling in GITR Ligand expressing dendritic cells to suppress cellular activation through the same pathway induced by the immunosuppressant dexamethasone (17). In the brain, GITR Ligand/GITR interactions enhance NGF-mediated neurite outgrowth from sympathetic neurons (10).

References
  1. Azuma, M. (2010) Crit. Rev. Immunol. 30:547.
  2. Kwon, B. et al. (1999) J. Biol. Chem. 274:6056.
  3. Gurney, A.L. et al. (1999) Curr. Biol. 9:215.
  4. Stephens, G.L. et al. (2004) J. Immunol. 173:5008.
  5. Tone, M. et al. (2003) Proc. Natl. Acad. Sci. 100:15059.
  6. Hanabuchi, S. et al. (2006) Blood 107:3617.
  7. Kamimura, Y. et al. (2009) J. Immunol. 182:2708.
  8. Hwang, H. et al. (2010) J. Neurosci. Res. 88:2188.
  9. Tuyaerts, S. et al. (2007) J. Leukoc. Biol. 82:93.
  10. O’Keefe, G.W. et al. (2008) Nat. Neurosci. 11:135.
  11. Kim, B.J. et al. (2004) Invest. Ophthalmol. Vis. Sci. 45:3170.
  12. Shimizu, J. et al. (2002) Nat. Immunol. 3:135.
  13. Ji, H. et al. (2004) J. Immunol. 172:5823.
  14. McHugh, R.S. et al. (2002) Immunity 16:311.
  15. Kanamaru, F. et al. (2004) J. Immunol. 172:7306.
  16. Ronchetti, S. et al. (2004) Eur. J. Immunol. 34:613.
  17. Grohmann, U. et al. (2007) Nat. Med. 13:579.
Long Name
Glucocorticoid Induced TNF Receptor Family Related Gene Ligand
Entrez Gene IDs
8995 (Human); 240873 (Mouse); 364031 (Rat)
Alternate Names
Activation-inducible TNF-related ligand; AITRL; AITRLMGC138237; GITR Ligand; GITRL; GITRLglucocorticoid-induced TNFR-related protein ligand; Glucocorticoid-induced TNF-related ligand; hGITRLGITR ligand; TL6AITR ligand; TNFSF18; tumor necrosis factor (ligand) superfamily, member 18; tumor necrosis factor ligand superfamily member 18

Product Specific Notices

This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.
This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.

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