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Recombinant Cynomolgus Monkey TIGIT protein, Fc-tagged

Cat.No.: TIGIT-197C
Product Overview: Recombinant Cynomolgus Monkey TIGIT(Met22-Pro142) fused with Fc region of Human IgG1 at C-terminal was expressed in HEK293.
Description: TIGIT (T cell Immunoreceptor with Ig and ITIM domains), also called VSTM3 (V-set and transmembrane domain-containing 3), VSIG9 (V-set and Ig domain-containing 9) and WUCAM (Washington University cell adhesion molecule) is a 30-34 kDa type I transmembrane protein that is a member of the CD28 family within the Ig superfamily of proteins. Human TIGIT cDNA encodes 244 amino acids (aa) including a 21 aa signal sequence, a 120 aa extracellular region with a V-type Ig-like domain and two potential N-glycosylation site, a 21 aa transmembrane sequence, and an 82 aa cytoplasmic domain with an ITIM motif. A 170 aa variant diverges after aa 166. Within the ECD, human TIGIT shares only 68-75% aa sequence identity with mouse, porcine, canine, equine and bovine TIGIT. Cyno TIGIT shares 88.4% homology with human TIGIT. TIGIT is expressed on NK cells and subsets of activated, memory and regulatory T cells, and particularly on follicular helper T cells within secondary lymphoid organs. It binds to CD155/PVR/Necl-5 and Nectin-2/CD112/PVRL2 that appear on dendritic cells (DC) and endothelium. Binding of TIGIT by DC induces IL-10 release and inhibits IL-12 production. Ligation of TIGIT on T cells down‑regulates TCR-mediated activation and subsequent proliferation, while NK cell TIGIT ligation blocks NK cell cytotoxicity. Through CD155 and Nectin-2, which also interact with DNAM-1/CD226 and CD96/Tactile, TIGIT is part of an interacting network of Ig superfamily members that may augment or oppose each other. In particular, TIGIT binding to CD155 can antagonize the effects of DNAM-1. Soluble TIGIT is able to compete with DNAM-1 for CD155 binding and attenuates T cell responses, while mice lacking TIGIT show increased T cell responses and susceptibility to autoimmune challenges.
Source: HEK293
Species: Cynomolgus Monkey
Tag : Fc
Predicted N Terminal: Met22
Form: Lyophilized from a 0.2 μm filtered solution in NaH2PO4, NaCl and EDTA.
Bio-activity: Measured by its binding ability in a functional ELISA. When Recombinant Human CD155/PVR is coated at 2.5 μg/mL (100 μL/well), the concentration of Recombinant Cynomolgus Monkey TIGIT Fc Chimera that produces 50% optimal binding response is 12-72 ng/mL.
Molecular Mass: Predicted Molecular Mass: 40 kDa
SDS-PAGE: 43 - 60 kDa, reducing conditions
Endotoxin: <0.1 EU per 1 μg of the protein by the LAL method.
Purity: >95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 centigrade as supplied.
1 month, 2 to 8 centigrade under sterile conditions after reconstitution.
3 months, -20 to -70 centigrade under sterile conditions after reconstitution.
Reconstitution: Reconstitute at 200 μg/mL in PBS.
Gene Name: TIGIT T-cell immunoreceptor with Ig and ITIM domains [ Macaca fascicularis ]
Official Symbol: TIGIT
Synonyms: TIGIT; T-cell immunoreceptor with Ig and ITIM domains
Gene ID: 102121588

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Optional requirements on this protein    +Expand
C-fusion    N-fusion   Non-tagged
His    GST   Fc   Others
<1.0 eu/μg    <0.1 eu/μg   <0.01 eu/μg   Not required
Monomer Isolation    Dimer Isolation    Not required
>80% by SDS-PAGE    >90% by SDS-PAGE   >95% by SDS-PAGE   Others

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