{"product_id":"recombinant-human-b7-h4-vtcn1-protein-aa-29-258-his-tag","title":"Recombinant Human B7-H4\/VTCN1 Protein (aa 29-258, His Tag)","description":"\u003cp\u003e\u003cb\u003eSize\u003c\/b\u003e:100μg\u003c\/p\u003e\u003cp\u003e\u003cb\u003eStorage\u003c\/b\u003e: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 \u0026lt; -20℃ for 3 months.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eShipping\u003c\/b\u003e:This product is provided as lyophilized powder which is shipped with ice packs.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eExp date\u003c\/b\u003e:12 months\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCategory ID_II\u003c\/b\u003e:Recombinant Proteins\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCategory ID_III\u003c\/b\u003e:Immune Checkpoint Proteins\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAbbreviation\u003c\/b\u003e:B7-H4;VTCN1\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTarget Synonym\u003c\/b\u003e:B7-H4;B7H4T-cell costimulatory molecule B7x;B7S1;B7S1VCTN1;B7XPRO1291;B7h.5;B7x;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 ;Vtcn1\u003c\/p\u003e\u003cp\u003e\u003cb\u003eResearch Areas\u003c\/b\u003e:Cell biology;Cancer;immunology\u003c\/p\u003e\u003cp\u003e\u003cb\u003eConjugation\u003c\/b\u003e:\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTarget Species\u003c\/b\u003e:Human\u003c\/p\u003e\u003cp\u003e\u003cb\u003eExpression Host\u003c\/b\u003e:HEK293 Cells\u003c\/p\u003e\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e:\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFusion tag\u003c\/b\u003e:C-His\u003c\/p\u003e\u003cp\u003e\u003cb\u003eUNIProt ID\u003c\/b\u003e:Q7Z7D3\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAccession\u003c\/b\u003e:Q7Z7D3\u003c\/p\u003e\u003cp\u003e\u003cb\u003eBackground\u003c\/b\u003e:V-set domain-containing T-cell activation inhibitor 1, also known as B7X, B7H4, B7S1, and VTCN1, is a single-pass type-III 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 IL10 \/ interleukin-10 and inhibited by CSF2 \/ GM-CSF and IL4 \/ interleukin-4 on antigen-presenting cells.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eConcentration\u003c\/b\u003e:\u003c\/p\u003e\u003cp\u003e\u003cb\u003eActivity\u003c\/b\u003e:Not validated for activity\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSequence\u003c\/b\u003e:Phe29-Ala258\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePurity\u003c\/b\u003e: \u0026gt; 95% as determined by reducing SDS-PAGE.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFormulation\u003c\/b\u003e:Lyophilized from sterile PBS, pH 7.4.\u003cbr\u003eNormally 5%-8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.\u003cbr\u003ePlease refer to the specific buffer information in the printed manual.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eReconstitution\u003c\/b\u003e:It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg\/mL. Concentration is measured by UV-Vis.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eEndotoxin\u003c\/b\u003e:\u0026lt; 1.0 EU\/mg of the protein as determined by the LAL method.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCalculated MW\u003c\/b\u003e:26.8 kDa\u003c\/p\u003e\u003cp\u003e\u003cb\u003eObservedMW\u003c\/b\u003e:43-48 kDa\u003c\/p\u003e","brand":"GeneBio Systems","offers":[{"title":"Default Title","offer_id":48644160520292,"sku":"PDMH100356","price":154400.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/8588\/9636\/files\/no_image_default_image-jpeg_1a8291c9-7b04-49bd-ada9-0996211a9385.jpg?v=1782615970","url":"https:\/\/www.genebiosystems.com\/en-jp\/products\/recombinant-human-b7-h4-vtcn1-protein-aa-29-258-his-tag","provider":"GeneBio ","version":"1.0","type":"link"}