AVANTI POLAR LIPIDS , CYGNUS , LARODAN , ADIPOGEN , MYBIOSOURCE , SERVA NORDMARK, BIOWORLD, EDGEBIO , PANREAC APPLICHEM
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Product Description: 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.
Alternate Names/Synonyms: V-type Immunoglobulin Domain-containing Suppressor of T Cell Activation; Platelet Receptor Gi24; Stress-induced Secreted Protein-1; Sisp-1; V-set Domain-containing Immunoregulatory Receptor
Product type: Protein
Source / Host: HEK 293 cells
Sequence: 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.
Species Crossreactivity: Mouse
Molecular Weight: ~35-40kDa (SDS-PAGE) and >250kDa (Size Exclusion Chromatography (SEC))
Purity: >95% (SDS-PAGE)
Endotoxin: <0.01EU/µg purified protein (LAL test; Lonza).
Concentration: 1mg/ml after reconstitution.
Formulation: Lyophilized. Contains PBS.
Handling Advice: After reconstitution, prepare aliquots and store at -20°C. Avoid freeze/thaw cycles. PBS containing at least 0.1% BSA should be used for further dilutions.
Short Term Storage: +4°C
Long Term Storage: -20°C
Shipping: BLUE ICE
Use & Stability: Stable for at least 6 months after receipt when stored at -20°C.
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