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Catalog Number | KMP2794 |
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Product Name | Human TIGIT Protein, hFc Tag, Avi Tag |
Product Description | The Human TIGIT Protein(KMP2794) is produced in HEK293 Cells. The target gene encoding the human TIGIT (NP_776160.2) (Met1-Pro141) is expressed with a c-terminal Avi tagged Fc region of human IgG1 at the C-terminus (Fc-Avi). The expressed protein is biotinylated in vivo by the Biotin-Protein ligase (BirA enzyme) which is co-expressed. |
Molecular Name | TIGIT |
Alias | Human TIGIT Protein, hFc Tag, Avi Tag, TIGIT |
Molecular Weight | 41.6 kDa |
Species | Human |
Size | 50ug, 100ug, 200ug |
Host | HEK293 Cells |
Purity | >90% as determined by SDS-PAGE |
Endotoxin | <1.0 EU/ug determined by the LAL method |
Buffer | PBS, pH7.4 |
Purification | Affinity purification |
Background | TIGIT, also known as V-set and transmembrane domain-containing protein 3 (VSTM3) or V-set and immunoglobulin domain-containing protein 9 (VSIG9) is a new surface protein containing an immunoglobulin variable domain, a transmembrane domain and an immunoreceptor tyrosine-based inhibitory motif (ITIM). TIGIT is expressed on regulatory, memory, activated T cells and NK cells. It binds PVR with high affinity, and PVRL2 with lower affinity, but not PVRL3. Knockdown of TIGIT with siRNA in human memory T cells did not affect T cell responses, however, TIGIT inhibits NK cytotoxicity directly through its ITIM. TIGIT suppresses T cell activation by promoting the generation of mature immunoregulatory dendritic cells. The binding of PVR to TIGIT on human dendritic cells enhanced the production of IL-1 and diminished the production of IL-12p4. Also, 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. |
Storage | Aliquot and store at -20℃ to -80℃. Avoid repeated freezing and thawing cycles. |
Note | This product is for research use only. |