Detects human GITR in direct ELISAs and Western blots. Does not cross-react with recombinant human (rh) 4‑1BB, recombinant mouse(rm) 4‑1BB, rhCD27, rmCD27, rhCD30, rmCD30, rhCD40, rmCD40, rhDR3, rhDR6, rhEDAR, rmEDAR, rhFas, rmFAS, rmGITR, rhHVEM, rhLymphotoxin R beta, rmLymphotoxin R beta, rhNGF R, rhOPG, rmOPG, rhRANK, rmRANK, rhTAJ, rhTNF RI, rmTNF RI, rhTNF RII, or rmTNF RII.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG₁

Endotoxin Level

<0.10 EU per 1 μg of the antibody by the LAL method.

Scientific Data Images for Human GITR/TNFRSF18 Antibody

Detection of GITR/TNFRSF18 in RPMI8226 (positive cells) vs. Jurkat (negative cells) by Flow Cytometry

RPMI8226 cells (filled histogram) vs. Jurkat cells (open histogram) were stained with Mouse Anti-Human GITR/TNFRSF18 Monoclonal Antibody (Catalog # MAB689) followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B). View our protocol for Staining Membrane-associated Proteins.

Applications for Human GITR/TNFRSF18 Antibody

Application

Recommended Usage

Blockade of Receptor-ligand Interaction

In a functional ELISA, 1-2 µg/mL of this antibody will block 50% of the binding of 10 ng/mL of Recombinant Human GITR Ligand/TNFSF18 (Catalog # 694-GL) to immobilized Recombinant Human GITR/TNFRSF18 Fc Chimera (Catalog # 689-GR) coated at 2 µg/mL (100 µL/well). At 5 µg/mL, this antibody will block >90% of the binding.

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Flow Cytometry

2.5 µg/10⁶ cells
Sample: - Human peripheral blood CD4⁺T cells treated with PHA
- RPMI8226 cells

Western Blot

1 µg/mL
Sample: Recombinant Human GITR/TNFRSF18 Fc Chimera (Catalog # 689-GR)
under non-reducing conditions only

Human GITR/TNFRSF18 Sandwich Immunoassay

ELISA Capture (Matched Antibody Pair)

Recommended Concentration: 2-8 µg/mL
Use in combination with these reagents:

Detection Reagent: Human GITR/TNFRSF18 Biotinylated Antibody (Catalog # BAF689)
Standard: Recombinant Human GITR/TNFRSF18 Fc Chimera Protein, CF (Catalog # 689-GR)

Please Note: Optimal dilutions of this antibody should be experimentally determined.

Reviewed Applications

Read 1 review rated 4 using MAB689 in the following applications:

Flow Cytometry (1 Review)

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. See Certificate of Analysis for details.
*Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: GITR/TNFRSF18

GITR (glucocorticoid-induced tumor necrosis factor receptor, also named AITR, activation-inducible TNF R family member), is a 228 amino acid (aa) type I transmembrane protein belonging to the TNF R family and has been designated TNFRSF18. The GITR cytoplasmic domain has striking homology with the cytoplasmic domain of 4-1BB and CD27. Human GITR shares 55% homology with murine GITR. GITR is expressed at low levels in peripheral blood T cells, bone marrow, thymus, spleen, and lymph nodes. In contrast to mouse GITR, expression of human GITR is not induced by treatment with dexamethasone, but is
up-regulated by antigen stimulation or by treatment with anti-CD3 plus anti-CD28, or PMA plus ionomycin. Human GITR ligand was identified from human umbilical vein endothelial cells and is a 177 aa polypeptide belonging to the TNF superfamily (TNFSF18). Ligation of GITR can activate NF-kappa B through TRAF2, and protect T cells from TCR activation-induced cell death. It has been proposed that GITR ligand and GITR may modulate T lymphocyte functions.

References

Nocentini, G. et al. (1997) Proc. Natl. Acad. Sci. USA 94:6216.
Kwon, B. et al. (1999) J. Biol. Chem. 274:6056.
Gurney, A.L. et al. (1999) Current Biology 9:215.
Kwon, B. et al. (1999) Current Opinion in Immunology 11:340.

Long Name

Glucocorticoid Induced TNF Receptor Family Related Gene

Alternate Names

AITR, CD357, TNFRSF18

Entrez Gene IDs

8784 (Human); 21936 (Mouse); 500598 (Rat); 102146362 (Cynomolgus Monkey)

Gene Symbol

TNFRSF18

UniProt

Q9Y5U5

Additional GITR/TNFRSF18 Products

Product Documents for Human GITR/TNFRSF18 Antibody

Product Datasheets

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COA

SDS

Download SDS

Product Specific Notices for Human GITR/TNFRSF18 Antibody

For research use only

Citations
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Calculators
Flow Cytometry