{"product_id":"mouse-cd28-recombinant-protein-fc-tag-lyophilized-200ug","title":"Mouse CD28 Recombinant Protein Fc Tag Lyophilized","description":"\u003cp\u003eMouse CD28 Recombinant Protein Fc Tag Lyophilized from Innovative Research has been recombinantly produced in CHO cells. This is a Lyophilized protein buffered in Lyophilized from 0.2um-filtered solution in PBS. Reconstitute at 100 and#956;g\/ml in sterile PBS. with a purity of ?98% (SDS-PAGE).\u003cbr\u003e\u003cbr\u003e Endotoxin level is less than 0.06EU\/ and#956;g protein (LAL test; Lonza)..\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003ci\u003eMore Details:\u003c\/i\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSpecies:\u003c\/b\u003e Mouse \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTarget:\u003c\/b\u003e Cd28\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePurity:\u003c\/b\u003e ?98% (SDS-PAGE).\u003cbr\u003e\u003cbr\u003e Endotoxin level is less than 0.06EU\/ and#956;g protein (LAL test; Lonza). \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSource:\u003c\/b\u003e CHO cells \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStorage Conditions:\u003c\/b\u003e Stable for at least 1 year after receipt when stored at -20°C. Working aliquots are stable for up to 3 months when stored at -20°C. \u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAdditional Information:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003eCD28 and CTLA-4 together with their ligands, CD80 (B7-1) and CD86 (B7-2), constitute one of the dominant costimulatory pathways that regulate T and B cell responses. CD28 and CTLA-4 are structurally homologous molecules that are members of the immunoglobulin (Ig) gene superfamily. Both CD28 and CTLA-4 are composed of a single Ig V-like extracellular domain, a transmembrane domain and an intracellular domain. CD28 and CTLA-4 are both expressed on the cell surface as disulfide-linked homodimers or as monomers. The genes encoding these two molecules are closely linked on human chromosome 2 and mouse chromosome 1. Mouse CD28 is expressed constitutively on virtually 100% of mouse T cells and on developing thymocytes. Cell surface expression of mouse CD28 is downregulated upon ligation of CD28 in the presence of PMA or PHA. In contrast, CTLA-4 is not expressed constitutively but is upregulated rapidly following T cell activation and CD28 ligation. Cell surface expression of mouse CTLA-4 peaks approx.y 48 hours after activation. Although both CTLA-4 and CD28 can bind to the same ligands, CTLA-4 binds to B7-1 and B7-2 with a 20-100 fold higher affinity than CD28. CD28\/B7 interaction has been shown to prevent apoptosis of activated T cells via the upregulation of bcl-XL. CD28 ligation has also been shown to regulate Th1\/Th2 differentiation.\u003cp\u003eThis recombinant proteins is for research use only.. At Innovative Research we provide reliable, consistent products that deliver reliable, consistent results.\u003c\/p\u003e","brand":"Innovative Research","offers":[{"title":"200UG","offer_id":40374204432580,"sku":"IMSCD28RFCLY200UG","price":902.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0050\/2297\/4065\/files\/66211b8b-ccf5-459c-bd40-6ec9ff2c4d10_bfa25ace-71cd-42f2-8761-d8181cb20e32.jpg?v=1740021185","url":"https:\/\/www.innov-research.com\/products\/mouse-cd28-recombinant-protein-fc-tag-lyophilized-200ug","provider":"Innovative Research","version":"1.0","type":"link"}