{"product_id":"recombinant-il-21-mouse-bk0099","title":"Recombinant IL-21, Mouse - BK0099","description":"\u003cp\u003eRecombinant IL-21, Mouse\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Numbers: BK0099-10, BK0099-50\u003c\/p\u003e\n\n\u003cp\u003eSizes: 10μg, 50μg\u003c\/p\u003e\n\n\u003cp\u003eSource: Escherichia coli\u003c\/p\u003e\n\n\u003cp\u003eMolecular Weight: 15.1 kDa, observed by reducing SDS-PAGE.\u003c\/p\u003e\n\n\u003cp\u003ePurity: \u0026gt; 95% as analyzed by SDS-PAGE.\u003c\/p\u003e\n\n\u003cp\u003eBiological Activity: ED50 \u0026lt; 1 ng\/mL, measured by its ability to stimulate the proliferation of human ANBL-6 cells, corresponding to a specific activity of \u0026gt; 1.0× 10ˆ6 units\/mg.\u003c\/p\u003e\n\n\u003cp\u003ePhysical Appearance: Sterile Filtered White lyophilized (freeze-dried) powder.\u003c\/p\u003e\n\n\u003cp\u003eFormulation: Lyophilized after extensive dialysis against PBS.\u003c\/p\u003e\n\n\u003cp\u003eAA Sequence: MHKSSPQGP DRLLIRLRHL IDIVEQLKIY ENDLDPELLS APQDVKGHCE HAAFACFQKA KLKPSNPGNN KTFIIDLVAQ LRRRLPARRG GKKQKHIAKC PSCDSYEKRT PKEFLERLKW LLQKMIHQHL S\u003c\/p\u003e\n\n\u003cp\u003eEndotoxin: \u0026lt; 0.2 EU\/μg, determined by LAL method.\u003c\/p\u003e\n\n\u003cp\u003eReconstitution: Reconstituted in ddH2O or PBS at 100 μg\/ml.\u003c\/p\u003e\n\n\u003cp\u003eStorage: Lyophilized recombinant mouse interleukin-21 (IL-21) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, mouse interleukin-21 (IL-21) should be stable up to 1 week at 4°C or up to 2 months at -20°C.\u003c\/p\u003e\n\n\u003cp\u003eUsage: This material is offered by USA Bioworld biotech for research, laboratory or further evaluation purposes. For research use only.\u003c\/p\u003e\n\n\u003cp\u003eDescription: Interleukin-21 (IL-21) belongs to the Type I four helix bundle cytokines, and shares the common cytokine receptor γ chain with IL-2, IL-4, IL-7, IL-9, and IL-15. IL-21 is expressed by CD4+ T cells, natural killer (NK) T cells, and Th17 cells. The IL-21 receptor is highly expressed on CD4+ and CD8+ B cells. IL-21 plays a pivotal role in the survival and proliferation of B cells, and their differentiation to immunoglobulin (Ig) producing cells. IL-21regulates the production of IgG1 and IgE by B cells, and diminishes the severity of allergy and asthma. In some cases, IL-21 induces B cell apoptosis. Other roles of IL-21 include regulation of the innate immune system, implication in autoimmunity, and antitumor activity.Recombinant mouse interleukin-21 (IL-21) produced in E.coli is a single non-glycosylated polypeptide chain containing 123 amino acids. A fully biologically active molecule, rhIL-21 has a molecular mass of 15.1 kDa analyzed by reducing SDS-PAGE and is obtained by chromatographic techniques at GenScript.\u003c\/p\u003e","brand":"BioWorld","offers":[{"title":"10μg","offer_id":42882242379955,"sku":"BK0099-10","price":256.94,"currency_code":"CAD","in_stock":true},{"title":"50μg","offer_id":42882242412723,"sku":"BK0099-50","price":813.32,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/products\/thumbnail_d1447bac803ec9be_11-14-09-19-51_efb48146-2d5b-46b7-b30e-d625672fb7d2.jpg?v=1702049915","url":"https:\/\/afsbio.com\/products\/recombinant-il-21-mouse-bk0099","provider":"AFSBio Inc.","version":"1.0","type":"link"}