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Recombinant Human B7-H4/VTCN1 Protein (Fc Tag)

Cat:PKSH033755
Manual MSDS

Price: $ 416

Price: $ 144

Size:
50μg 10μg
Quantity:
  • Expression Host: HEK293 Cells
  • Accession: Q7Z7D3
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Product Details
Synonyms B7S1;B7x;Vtcn1;B7h.5;B7-H4;B7H4T-cell costimulatory molecule B7x;B7S1VCTN1;B7XPRO1291;FLJ22418;Immune costimulatory protein B7-H4;Protein B7S1;T cell costimulatory molecule B7x;V-set domain containing T cell activation inhibitor 1;V-set domain-containing T-cell activation inhibitor 1
Species Human
Expression Host HEK293 Cells
Sequence Phe29-Ala258
Accession Q7Z7D3
Calculated Molecular Weight 52.5 kDa
Observed Molecular Weight 70-95 kDa
Tag C-Fc
Purity > 95 % as determined by reducing SDS-PAGE.
Endotoxin < 1.0 EU per μg of the protein as determined by the LAL method.
Storage Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
Shipping This product is provided as lyophilized powder which is shipped with ice packs.
Formulation Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.
Reconstitution Please refer to the printed manual for detailed information.
Background B7 Homolog 4 (B7-H4) is glycosylated member of the B7 family of immune costimulatory proteins. Mature human B7-H4 consists of a 235 amino acid (aa) extracellular domain (ECD) with two Ig-like V-type domains; a 21 aa transmembrane segment; and a 2 aa cytoplasmic tail. It is widely expressed; including in kidney; liver; lung; pancreas; placenta; prostate; spleen; testis and thymus. B7-H4 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; plays an important role; together with regulatory T-cells (Treg); in the suppression of tumor-associated antigen-specific T-cell immunity. It also involved in promoting epithelial cell transformation.