VISTA (mouse):COMP (mouse) (rec.) (His)

AdipoGen Life Sciences

VISTA (mouse):COMP (mouse) (rec.) (His)

10

Research Use Only

1 mg/ml

>95%

V-type immunoglobulin domain-containing suppressor of T-cell activation

Mouse VISTA is a 55 to 65kDa type I Ig membrane protein with the extracellular domain homologous to PD-L1. VISTA is mainly expressed on hematopoietic tissues (spleen, thymus and bone marrow) and on myeloid cells with lower expression on CD4+ and CD8+ T cells. VISTA is a new negative checkpoint regulator that potently suppresses T cell activation. Overexpression of VISTA on tumors inhibits the protective anti-tumor immunity and blockade of VISTA enhances antitumor immunity in multiple tumor models. VISTA on APC delivers negative signaling to T cells via a yet-to-identify binding partner on T cells. Recently, it has been reported that recombinant VISTA protein needs to be multimerized to be active as soluble ligand. The protein VISTA (mouse):COMP (mouse) (with the extracellular domain of VISTA (mouse) fused to the pentamerization domain from the cartilage oligomeric matrix protein (COMP)), but not VISTA-Fc, functions as an immunosuppressive agonist in vivo inhibiting the proliferation of CD4+ T cells. - Protein. The extracellular domain of mouse VISTA (aa 33-191) is fused at the C-terminus to the domain of the mouse cartilage oligomeric matrix protein (COMP) (aa 28-72) and a His Tag. Source: HEK 293 cells. Endotoxin content: <0.01EU/microg purified protein (LAL test; Lonza). Lyophilized. Contains PBS. Purity: >95% (SDS-PAGE). Mouse VISTA is a 55 to 65kDa type I Ig membrane protein with the extracellular domain homologous to PD-L1. VISTA is mainly expressed on hematopoietic tissues (spleen, thymus and bone marrow) and on myeloid cells with lower expression on CD4+ and CD8+ T cells. VISTA is a new negative checkpoint regulator that potently suppresses T cell activation. Overexpression of VISTA on tumors inhibits the protective anti-tumor immunity and blockade of VISTA enhances antitumor immunity in multiple tumor models. VISTA on APC delivers negative signaling to T cells via a yet-to-identify binding partner on T cells. Recently, it has been reported that recombinant VISTA protein needs to be multimerized to be active as soluble ligand. The protein VISTA (mouse):COMP (mouse) (with the extracellular domain of VISTA (mouse) fused to the pentamerization domain from the cartilage oligomeric matrix protein (COMP)), but not VISTA-Fc, functions as an immunosuppressive agonist in vivo inhibiting the proliferation of CD4+ T cells.

-20°C,2°C to 8°C

12352202