TIGIT Signaling Axis

TIGIT proteins

TIGIT (T cell immununo receptor with lg and ITIM domains) is a newly discovered immune checkpoint protein expressed on T cells and Natural Killer cells (NK). TIGIT is an inhibitory receptor which modulates the immune activity by competing with activating receptor CD226 (also known as DNAM-1) for ligand binding. This on and off switch of TIGIT & DNAM-1 parallels that of CTLA4 & CD28, which makes it a promising target for anti-tumor therapy.

CD155 (PVR) and CD112 (PVRL2 or Nectin-2) are co-ligands of TIGIT and DNAM-1, while CD113 (PVRL3 or Nectin-3) is only binding to TIGIT. The affinity between different ligands and receptors vary. The binding between TIGIT and CD155 is more robust than that between TIGIT and CD112 or CD113.

ACROBiosystems carries a large collection of recombinant proteins from TIGIT signaling axis. Please find detailed information below:

Bioactivity Data

Fig.1 FACS assay shows Biotinylated Human TIGIT, Fc,Avitag (Cat. No. TIT-H82F1) can bind to 293T cell overexpressing human CD155. The concentration of TIGIT is 0.03 μg/mL.

Fig.2 FACS assay shows that Human TIGIT, Mouse IgG2a Fc tag, low endotoxin (Cat. No. TIT-H5253) can bind to 293T cell overexpressing human CD155. The concentration of TIGIT used is 0.03 μg/mL.

Fig.3 Anti-hTIGIT antibody captured on CM5 chip via Anti-mouse antibodies surface can bind Human TIGIT, His Tag (Cat. No. TIT-H52H5) with an affinity constant of 1.28 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).

Fig.4 Serial dilutions of Anti-TIGIT Neutralizing antibody (Catalog # EP131-C04) (1:1 serial dilution, from 5 μg/mL to 0.01μg/mL) was added into TIGIT: Biotinylated CD155 binding reactions. The assay was performed according to the protocol described below. Background was subtracted from data points prior to log transformation and curve fitting (QC tested).

TIGIT Product List

Cat. No. Product Description
TIT-H82F1
(Biotin-labeled)
Biotinylated Human TIGIT Protein, Fc Tag, Avi Tag
TIT-C5223 Cynomolgus / Rhesus macaque TIGIT Protein
TIT-C5254 Cynomolgus / Rhesus macaque TIGIT Protein, Fc Tag
TIT-M52E6 Mouse TIGIT Protein, His Tag
TIT-M5257 Mouse TIGIT Protein, Fc Tag
TIT-R5258 Rat TIGIT Protein, Fc Tag
TIT-H5253 Human TIGIT Protein, Mouse IgG2a Fc Tag, low endotoxin
TIT-H5254 Human TIGIT Protein, Fc Tag
TIT-C52H7 Canine TIGIT Protein, His Tag

Other Relevant Products

Molecule Cat. No. Product Description
CD155 CD5-H82F6 Biotinylated Human CD155 / PVR Protein, Fc, Avi Tag
CD5-R52H5 Rhesus macaque CD155 / PVR Protein, His Tag
CD5-H5254 Human CD155 / PVR Protein, Mouse IgG2a Fc Tag, low endotoxin
CD5-M5254 Mouse CD155 / PVR Protein, Mouse IgG2a Fc Tag
CD5-H82E3 Biotinylated Human CD155 / PVR Protein, His, Avitag™
CD5-M82F7 Biotinylated Mouse CD155 / PVR Protein, Fc, Avitag™
CD5-H5251 Human CD155 / PVR Protein, Fc Tag
CD5-H5223 Human CD155 / PVR Protein, His Tag
CD112 CD2-H82F8 Biotinylated Human Nectin-2 / CD112 Protein, Fc, Avi Tag
CD2-H5257 Human Nectin-2 / CD112 Protein, Mouse IgG2a Fc Tag
PV2-H5253 Human Nectin-2 / CD112 Protein, Fc Tag
PV2-H52E2 Human Nectin-2 / CD112 Protein, His Tag
CD113 PV3-H82F3 Biotinylated Human Nectin-3 / CD113 Protein, Fc, Avi Tag
PV3-H5255 Human Nectin-3 / CD113 Protein, Fc Tag
PV3-H52E4 Human Nectin-3 / CD113 Protein, His Tag
DNAM-1 DN1-H82F9 Biotinylated Human DNAM-1 / CD226 Protein, Fc, Avi Tag
DN1-C52H9 Cynomolgus DNAM-1 / CD226 Protein, His Tag
DN1-H5257 Human DNAM-1 / CD226 Protein, Fc Tag
DN1-H52H6 Human DNAM-1 / CD226 Protein, His Tag

References

References

Related Articles

  • Background
  • Bioactivity Data
  • References
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