Recombinant Mouse VTCN1 Protein (Phe29-Ser256), His-tagged

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Recombinant Mouse VTCN1 Protein (Phe29-Ser256), His-tagged

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Cat.No. : VTCN1-787M
Product Overview : Recombinant Mouse VTCN1 Protein (NP_848709.2) (Phe29-Ser256) was produced by Baculovirus-Insect Cells expression system. This protein was expressed with a polyhistidine tag at the C-terminus.
Description : V-set domain-containing T-cell activation inhibitor 1, also known as B7X, B7H4, B7S1, and VTCN1, is a single-pass type? membrane protein belonging to the B7 family of costimulatory proteins. These proteins are expressed on the surface of antigen-presenting cells and interact with ligands on T lymphocytes. They provide costimulatory signals that regulate T cell responses. A soluble form of B7H4 has also been detected. B7X / VTCN1 / B7H4 negatively regulates T-cell-mediated immune response by inhibiting T-cell activation, proliferation, cytokine production and development of cytotoxicity. When expressed on the cell surface of tumor macrophages, B7X / VTCN1 / B7H4 plays an important role, together with regulatory T-cells(Treg), in the suppression of tumor-associated antigen-specific T-cell immunity. B7X / VTCN1 / B7H4 is also involved in promoting epithelial cell transformation. This membrane protein can be up-regulated by IL6 / interleukin-6 and IL1 / interleukin-1 and inhibited by CSF2 / GM-CSF and IL4 / interleukin-4 on antigen-presenting cells.
Source : Baculovirus-Insect Cells
Species : Mouse
Tag : His
Predicted N Terminal : Phe 29
Form : Lyophilized from sterile 20 mM Tris, 300 mM NaCl, pH 7.5, 10 % glycerol. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Molecular Mass : The recombinant mouse VTCN1 consists of 239 amino acids and predicts a molecular mass of 26.6 kDa.
Protein length : Phe29-Ser256
Endotoxin : < 1.0 EU per μg protein as determined by the LAL method.
Purity : > 95 % as determined by SDS-PAGE.
Stability : Samples are stable for up to twelve months from date of receipt at -70 centigrade.
Storage : Store it under sterile conditions at -20 centigrade to -80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution : It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 mg/ml. Centrifuge the vial at 4ºC before opening to recover the entire contents.
Shipping : In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Gene Name : Vtcn1 V-set domain containing T cell activation inhibitor 1 [ Mus musculus ]
Official Symbol : VTCN1
Synonyms : VTCN1; B7x; B7h4; B7s1; BC032925; MGC41287;
Gene ID : 242122
mRNA Refseq : NM_178594
Protein Refseq : NP_848709
MIM : 608162
UniProt ID : Q7TSP5

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