{"product_id":"recombinant-rat-il-18-protein-sumo-tag","title":"Recombinant Rat IL-18 Protein (Sumo 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:Cytokines\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAbbreviation\u003c\/b\u003e:IL-18\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTarget Synonym\u003c\/b\u003e:Interleukin-18;IGIF;Interferon-gamma-inducing factor\u003c\/p\u003e\u003cp\u003e\u003cb\u003eResearch Areas\u003c\/b\u003e:Immunology;Cell Biology;Signal Transduction\u003c\/p\u003e\u003cp\u003e\u003cb\u003eConjugation\u003c\/b\u003e:\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTarget Species\u003c\/b\u003e:Rat\u003c\/p\u003e\u003cp\u003e\u003cb\u003eExpression Host\u003c\/b\u003e:E.coli\u003c\/p\u003e\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e:\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFusion tag\u003c\/b\u003e:N-Sumo\u003c\/p\u003e\u003cp\u003e\u003cb\u003eUNIProt ID\u003c\/b\u003e:P97636\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAccession\u003c\/b\u003e:P97636\u003c\/p\u003e\u003cp\u003e\u003cb\u003eBackground\u003c\/b\u003e:Interleukin-18 (IL-18）is a protein which belongs to the IL-1 family. It is expressed as a 24 kDa precursor by endothelial and epithelial cells, keratinocytes, gamma δ T cells, and phagocytes. Mature mouse IL-18 shares 63% and 91% amino acid sequence identity with mouse and rat IL-18, respectively. IL-18 binds to the widely expressed IL-18 R alpha which recruits IL-18 R beta to form the signaling receptor complex. Its bioactivity is negatively regulated by interactions with IL-18 binding proteins and virally encoded IL-18BP homologs. It augments natural killer cell activity in spleen cells and stimulates interferon gamma production in T-helper type I cells. In the presence of IL-12 or IL-15, IL-18 enhances anti-viral Th1 immune responses by inducing IFN-gamma production and the cytolytic activity of CD8+ T cells and NK cells. In the absence of IL-12 or IL-15, however, IL-18 promotes production of the Th2 cytokines IL-4 and IL-13 by CD4+ T cells and basophils.\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:His37-Ser194\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 a 0.2 μm filtered solution in PBS with 5% Trehalose and 5% Mannitol.\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; 10 EU\/mg of the protein as determined by the LAL method\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCalculated MW\u003c\/b\u003e:33 kDa\u003c\/p\u003e\u003cp\u003e\u003cb\u003eObservedMW\u003c\/b\u003e:37 kDa\u003c\/p\u003e","brand":"GeneBio Systems","offers":[{"title":"Default Title","offer_id":48644206264420,"sku":"PDER100259","price":1017.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/8588\/9636\/files\/no_image_default_image-jpeg_0649cfdb-d1ae-4922-b502-f3995947b63e.jpg?v=1782617919","url":"https:\/\/www.genebiosystems.com\/en-us\/products\/recombinant-rat-il-18-protein-sumo-tag","provider":"GeneBio ","version":"1.0","type":"link"}