FC-FP
H
Endogenous
Rabbit IgG
#Q495A1
201633
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Flow Cytometry (Fixed/Permeabilized) | 1:50 |
Storage
Specificity / Sensitivity
Species Reactivity:
Human
Source / Purification
Monoclonal antibody is produced by immunizing animals with recombinant protein specific to the carboxy terminus of human TIGIT protein. This antibody cross-reacts with an unidentified protein of 42 kDa in some cell extracts.
Product Description
Background
T-cell immunoreceptor with Ig and ITIM domains (TIGIT), also known as VSIG9, VSTM3, and WUCAM, is a member of the poliovirus receptor family of immunoglobulin proteins (1-3). TIGIT is expressed at low levels on subsets of T cells and NK cells, and is upregulated at the protein level following activation of these cells (1-4). TIGIT marks exhausted T cells in the tumor microenvironment (5) and during human immunodeficiency virus (HIV) infection (6). Research has shown TIGIT interacts with several receptors expressed on antigen presenting cells, such as dendritic cells and macrophages, as well as tumor cells and cells of the microenvironment. TIGIT binds with high affinity to PVR/CD155, and with low affinity to Nectin-2/CD112 and Nectin-3/CD113 (2,4,7). Upon binding to its ligands, TIGIT suppresses T cell activation, and inhibits T and NK cell cytotoxicity. This inhibition can be blocked using monoclonal antibodies directed at the extracellular domain of TIGIT, resulting in rejuvenated antigen-specific CD8+ T cell responses in tumors and during HIV infection (5,6,8). Three potential isoforms of TIGIT have been computationally mapped (9).
- Yu, X. et al. (2009) Nat Immunol 10, 48-57.
- Levin, S.D. et al. (2011) Eur J Immunol 41, 902-15.
- Boles, K.S. et al. (2009) Eur J Immunol 39, 695-703.
- Stanietsky, N. et al. (2009) Proc Natl Acad Sci U S A 106, 17858-63.
- Chauvin, J.M. et al. (2015) J Clin Invest 125, 2046-58.
- Chew, G.M. et al. (2016) PLoS Pathog 12, e1005349.
- Stengel, K.F. et al. (2012) Proc Natl Acad Sci U S A 109, 5399-404.
- Johnston, R.J. et al. (2014) Cancer Cell 26, 923-37.
- Bechtel, S. et al. (2007) BMC Genomics 8, 399.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Applications Key
FC-FP: Flow Cytometry (Fixed/Permeabilized)
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
Trademarks and Patents
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