{"product_id":"recombinant-human-tnf-beta-tnfb-protein","title":"Recombinant Human TNF beta\/TNFB Protein","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: Cytokines\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAbbreviation\u003c\/b\u003e: TNF beta;TNFB\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTarget Synonym\u003c\/b\u003e: LT-Alpha;LTA;Lymphotoxin-Alpha;TNF-Beta;TNFB;TNFSF1;Tumor Necrosis Factor Ligand Superfamily Member 1\u003c\/p\u003e\u003cp\u003e\u003cb\u003eResearch Areas\u003c\/b\u003e: Signal Transduction;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: E.coli\u003c\/p\u003e\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e: Cell culture\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFusion tag\u003c\/b\u003e: N-His\u003c\/p\u003e\u003cp\u003e\u003cb\u003eUNIProt ID\u003c\/b\u003e: P01374\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAccession\u003c\/b\u003e: P01374\u003c\/p\u003e\u003cp\u003e\u003cb\u003eBackground\u003c\/b\u003e: Tumor Necrosis Factor β (TNF-β) is a secreted protein belonging to the tumor necrosis factor family. TNF-β binds to TNFRSF1A\/TNFR1, TNFRSF1B\/TNFBR and TNFRSF14\/HVEM in homotrimeric form, binds to TNFRSF3\/LTBR in heterotrimeric form with LTB. TNF-β forms heterotrimers with lymphotoxin-beta, which anchors TNF-β to the cell surface. TNF-β mediates the inflammatory, immunostimulatory, and antiviral response, involves in the formation of second lymphoid organs during development, has a role in apoptosis. TNF-β is produced by lymphocytes and cytotoxic for a variety of tumor cells in vitro and in vivo.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eConcentration\u003c\/b\u003e: \u003c\/p\u003e\u003cp\u003e\u003cb\u003eActivity\u003c\/b\u003e: Measure by its ability to induce cytotoxicity in L929 cells in the presence of actinomycin D. The ED\u003csub\u003e50\u003c\/sub\u003e for this effect is \u0026lt;3 pg\/mL. The specific activity of recombinant human TNF beta is \u0026gt; 3.3x 10\u003csup\u003e8\u003c\/sup\u003e IU\/mg.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSequence\u003c\/b\u003e: Leu35-Leu205\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePurity\u003c\/b\u003e:  \u0026gt; 98 % as determined by reducing SDS-PAGE.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFormulation\u003c\/b\u003e: Lyophilized from sterile 20 mM sodium citrate, 0.2 M NaCl, pH 3.5. \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: Please refer to the printed manual for detailed information.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eEndotoxin\u003c\/b\u003e:  \u0026lt; 0.1 EU per μg of the protein as determined by the LAL method.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCalculated MW\u003c\/b\u003e: 18.7 kDa\u003c\/p\u003e\u003cp\u003e\u003cb\u003eObservedMW\u003c\/b\u003e: 21 kDa\u003c\/p\u003e","brand":"GeneBio Systems","offers":[{"title":"Default Title","offer_id":47982487011428,"sku":"PKSH033166","price":118800.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/8588\/9636\/files\/no_image_default_image-jpeg_f516f49c-4356-481d-b42d-0129debf0b9d.jpg?v=1772386944","url":"https:\/\/www.genebiosystems.com\/en-jp\/products\/recombinant-human-tnf-beta-tnfb-protein","provider":"GeneBio ","version":"1.0","type":"link"}