Abbreviation
Recombinant Human TNFSF18 protein, partial (Active)
Purity
>98% as determined by SDS-PAGE.
Endotoxin
Less than 1.0 EU/μg as determined by LAL method.
Activity
Fully biologically active when compared to standard. The biological activity as determined by stimulation of IL-8 production using human PBMC is in a concentration range of 0.1-10 ng/ml.
Alternative Names
Activation inducible TNF related ligand; Activation-inducible TNF-related ligand; AITR ligand; AITRL; GITR ligand; GITRL; Glucocorticoid induced TNF related ligand; Glucocorticoid induced TNFR related protein ligand; Glucocorticoid-induced TNF-related ligand; hGITRL; MGC138237; TL6; TNF18_HUMAN; TNFSF18; TNLG2A; Tumor necrosis factor (ligand) superfamily member 18; Tumor necrosis factor ligand 2A; Tumor necrosis factor ligand superfamily member 18
Species
Homo sapiens (Human)
Expression Region
74-199aa
Target Protein Sequence
ETAKEPCMAK FGPLPSKWQM ASSEPPCVNK VSDWKLEILQ NGLYLIYGQV APNANYNDVA PFEVRLYKNK DMIQTLTNKS KIQNVGGTYE LHVGDTIDLI FNSEHQVLKN NTYWGIILLA NPQFIS
Note: The complete
sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is
translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application,
please explicitly request the full and complete sequence of this protein before ordering.
Tag Info
Tag-Free
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer
Lyophilized from a 0.2 m filtered PBS, pH 7.4
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Lead Time
5-10 business days
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Datasheet & COA
Please contact us to get it.
Description
TNFSF18 (GITRL) engages the GITR receptor on T cells to modulate co-stimulatory signaling relevant to tumor immunology and regulatory T-cell biology. This tag-free recombinant human TNFSF18, spanning residues 74–199, stimulates IL-8 production in human PBMCs at concentrations of 0.1–10 ng/mL, confirming potent NF-κB pathway activation suitable for cell-based functional assays, GITR-dependent T-cell co-stimulation studies, and reference standardization in cytokine detection platforms. Endotoxin levels below 1.0 EU/μg eliminate LPS-driven artifacts that would otherwise confound immune cell activation readouts, making this preparation appropriate for in vivo tumor models and antibody development workflows requiring a reliable coating antigen or positive control. Purity exceeding 98% by SDS-PAGE, combined with this stringent endotoxin control, supports use in signaling pathway dissection and proliferation assays where activity must be unambiguously attributed to GITRL engagement.
