FSF-HM218 | 价格

FSF-HM218-100μg / 询价

FSF-HM218-500μg / 询价

FSF-HM218-500μgx2 / 询价

Human GITR Ligand/TNFSF18 Trimer Protein

产品信息(Product Info)
表达区间及表达系统(Source)

Recombinant Human GITR Ligand/TNFSF18 Trimer Protein is expressed from HEK293 with monomeric hFc tag at the N-Terminus.
It contains Gln50-Ser177 [Accession | Q9UNG2].

分子量大小(Molecular Weight)

The protein has a predicted MW of 70.2 kDa. Due to glycosylation, the protein migrates to 75-85 kDa based on Bis-Tris PAGE result.

纯度(Purity)

> 95% as determined by Bis-Tris PAGE
> 95% as determined by HPLC

内毒素(Endotoxin)

Less than 1EU per μg by the LAL method.

制剂(Formulation)

Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.

重构方法(Reconstitution)

Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.

存储(Storage)

-20 to -80°C for 12 months as supplied from date of receipt.
-80°C for 3 months after reconstitution.
Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

产品数据(Assay Data)
Bis-Tris PAGE

Human GITR Ligand (Trimer) on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC

The purity of Human GITR Ligand (Trimer) is greater than 95% as determined by SEC-HPLC.

SPR Data

Human GITR, His Tag captured on CM5 Chip via Anti-his antibody can bind Human GITR Ligand Trimer, hFc Tag with an affinity constant of 4.47 nM as determined in SPR assay (Biacore T200).

ELISA Data

Immobilized Human GITR Ligand Trimer, hFc Tag at 5μg/ml (100μl/well) on the plate. Dose response curve for Human GITR, His Tag with the EC50 of 2.60μg/ml determined by ELISA (QC Test).

背景(Background)

Glucocorticoid-induced TNFR-related protein (TNFRSF18, GITR, CD357), expressed by T cells, and its ligand (TNFSF18, GITRL), expressed by myeloid populations, provide co-stimulatory signals that boost T cell activity. Due to the important role that GITR plays in regulating immune functions, agonistic stimulation of GITR is a promising therapeutic concept.

分子别名(Synonyms)

TNFSF18; AITRL; TL6; GITRL; GITR Ligand

文献(References)

(1)Richards DM, Marschall V, Billian-Frey K, et al. HERA-GITRL activates T cells and promotes anti-tumor efficacy independent of FcγR-binding functionality. J Immunother Cancer. 2019;7(1):191. Published 2019 Jul 19. doi:10.1186/s40425-019-0671-4

Note: HPLC results always come from liquid protein, due to absorption peak interference of trehalose in lyophilized powder.