Name: Recombinant Human T-cell immunoreceptor with Ig and ITIM domains(TIGIT),partial (Active)
Brand: CUSABIO
SKU: CSB-MP675446HU

Product Details

Description	CUSABIO expressed the human TIGIT residues 22-141 carrying a C-terminal hFc-Myc tag in mammalian cells. The product is the recombinant human TIGIT protein. It is an active protein with high purity (>96%, SDS-PAGE) and low endotoxin (<1.0 EU/ug protein, LAL method). It has an apparent molecular weight of 46 kDa due to glycosylation. In the FACS assay, this TIGIT protein can bind to 293F cell overexpressing human CD155. And it is in stock so that there is no preparation waiting period. TIGIT, a co-inhibitory molecule on T cells, exerts immunosuppressive effects by competing with CD226 for the same CD155 ligand. Accumulating roles demonstrate that TIGIT plays a key role in limiting adaptive and innate immunity against tumors.
Purity	Greater than 96% as determined by SDS-PAGE.
Endotoxin	Less than 1.0 EU/ug as determined by LAL method.
Activity	FACS assay shows that Human TIGIT can bind to 293F cell overexpressing human CD155.
Target Names	TIGIT
Uniprot No.	Q495A1
Alternative Names	(VSIG9)(VSTM3)
Molecular Characterization
Species	Homo sapiens (Human)
Source	Mammalian cell
Expression Region	22-141aa
Target Protein Sequence	MMTGTIETTGNISAEKGGSIILQCHLSSTTAQVTQVNWEQQDQLLAICNADLGWHISPSFKDRVAPGPGLGLTLQSLTVNDTGEYFCIYHTYPDGTYTGRIFLEVLESSVAEHGARFQIP
Mol. Weight	43.2 kDa
Protein Length	Partial
Tag Info	C-terminal hFc-Myc-tagged
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 μm filtered PBS, 6% Trehalose, 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.
Troubleshooting and FAQs	Protein FAQs
Storage Condition	Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
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.
Lead Time	3-7 business days
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA	Please contact us to get it.

Target Background

Function	Binds with high affinity to the poliovirus receptor (PVR) which causes increased secretion of IL10 and decreased secretion of IL12B and suppresses T-cell activation by promoting the generation of mature immunoregulatory dendritic cells.
Gene References into Functions	The activation of PD-1 and TIGIT may exert negative regulatory effects and inhibit the immune response to cancer cells, resulting in immune escape of cancer cells. PMID: 30262800 These findings highlight the importance of the TIGIT/CD226/PVR axis as an immune checkpoint barrier that could hinder future "cure" strategies requiring potent HIV-specific CD8(+) T cells PMID: 28084312 High expression of TIGIT and Helios identifies CD4+ T cells with impaired immunological functions, primarily among patients with an advanced stage of Sezary syndrome. PMID: 27592800 Natural killer cells and cytotoxic T cells express both TIGIT and DNAM-1 receptors, and in certain cases their effector functions are dictated by TIGIT or DNAM-1 signaling. Agonist and antagonist antibodies targeting either TIGIT or DNAM-1 present many therapeutic options for diseases spanning from cancer to auto-immunity. (Review) PMID: 28035916 TIGIT contributes to functional T-cell impairment and associates with poor clinical outcome in acute myelogenous leukemia. The study suggests that blockade of TIGIT to restore T-cell function and antitumor immunity may represent a novel effective leukemia therapeutic. PMID: 26763253 Blimp-1 binds to the promoters of PD-1 and TIGIT and positively regulates their expression in patients with acute myeloid leukemia. PMID: 28629373 Data show that gastric cancer cells inhibit T-cell metabolism through CD155/TIGIT signaling. PMID: 28883004 Our data provide important structural and biochemical determinants responsible for the recognition of nectin-2 by TIGIT. PMID: 27978489 TIGIT is a powerful negative regulator of CD4(+) T cells in systemic lupus erythematosus. PMID: 28108989 TIGIT signaling in NK cells after MDSC coculture led to a decrease in the phosphorylation of ZAP70/Syk and ERK1/2. PMID: 27503932 energetic basis for the TIGIT/nectin-2 interaction and revealed that an "aromatic key" of nectin-2 is critical for this interaction, whereas variations in the lock were tolerated. PMID: 28515320 TIGIT-positive circulating follicular helper T cells display robust B-cell help functions: potential role in sickle cell alloimmunization. PMID: 26250578 implying that TIGIT exerts immunosuppressive effects by competing with DNAM-1 for the same ligand, CD155 PMID: 26842126 These findings identify TIGIT as a novel marker of dysfunctional HIV-specific T cells PMID: 26741490 This study shows that HBZ-induced TIGIT plays a pivotal role in attenuating host immune responses and shaping a microenvironment favorable to human T-cell leukemia virus type 1. PMID: 26735971 a novel mechanism that links TIGIT expression with NK-cell functional heterogeneity, and this mechanism might partially explain why individuals have different susceptibilities to infection, autoimmune disease, and cancer. PMID: 26171588 Human regulatory T cells expressing the receptors TIGIT and CD226 display widely divergent phenotypes in regard to expansion and activation. PMID: 25994968 TIGIT and PD-1 blockade additively increased proliferation, cytokine production, and degranulation of tumor-antigen-specific CD8 T cells and CD8 TILs. TIGIT and PD-1 regulate the expansion and function of these T cells in melanoma. PMID: 25866972 The results identify a bacterium-dependent, tumor-immune evasion mechanism in which tumors exploit the Fap2 protein of F. nucleatum to inhibit immune cell activity via TIGIT. PMID: 25680274 Findings suggest that TIGIT is a key checkpoint inhibitor of chronic antiviral and antitumor responses through impairing CD226 function when disrupting its homodimerization. PMID: 25465800 TIGIT/PVR ligation signaling mediates suppression of IFN-gamma production via the NF-kappaB pathway. PMID: 24817116 TIGIT is phosphorylated at its cytoplasmic tail after its ligation with PVR. PMID: 23154388 The Tim-3 pathway appears to control regulatory (Treg) and effector T cell balance via altering cell proliferation and apoptosis during hepatitis C virus infection. PMID: 22706088 TIGIT can inhibit T cell functions by competing with CD226 and can also directly inhibit T cells in a T cell-intrinsic manner. PMID: 22427644 data suggest a cis-trans receptor clustering mechanism for cell adhesion and signaling by the TIGIT/PVR complex and provide structural insights into how the PVR family of immunoregulators function PMID: 22421438 that soluble Vstm3 attenuates T-cell responses in vitro and in vivo PMID: 21416464 TIGIT exerts immunosuppressive effects by binding to poliovirus receptor and modulating cytokine production by dendritic cells. PMID: 19011627 a novel immunoreceptor, Washington University Cell Adhesion Molecule, which is expressed on human follicular B helper T cells, was described. PMID: 19197944 TIGIT counter inhibits the NK-mediated killing of tumor cells and protects normal cells from NK-mediated cytotoxicity thus providing an "alternative self" mechanism for MHC class I inhibition. PMID: 19815499 Show More Hide All
Subcellular Location	Cell membrane; Single-pass type I membrane protein.
Tissue Specificity	Expressed at low levels on peripheral memory and regulatory CD4+ T-cells and NK cells and is up-regulated following activation of these cells (at protein level).
Database Links	HGNC: 26838 OMIM: 612859 KEGG: hsa:201633 STRING: 9606.ENSP00000373167 UniGene: Hs.421750

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Code	CSB-MP675446HU
Size	$428
Image	(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel. Activity FACS assay shows that Human TIGIT can bind to 293F cell overexpressing human CD155. Biological Activity Assay
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Recombinant Human T-cell immunoreceptor with Ig and ITIM domains(TIGIT),partial (Active)

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