{"product_id":"recombinant-human-il-21-protein-rp01708","title":"Recombinant Human IL-21 Protein - RP01708","description":"\u003cp\u003eRecombinant Human IL-21 Protein\u003c\/p\u003e\n\n\u003cp\u003eSizes: 10ug, 20g, 50ug, 100ug\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Numbers: RP01708-10, RP01708-20, RP01708-50, RP01708-100\u003c\/p\u003e\n\n\u003cp\u003eCitations, Manuals and MSDS Available upon request.\u003c\/p\u003e\n\n\u003cp\u003eDescription: Recombinant Human IL-21 Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence (Gln32-Ser162) of human IL-21 (Accession #NP_068575.1) fused with no additional amino acid.\u003c\/p\u003e\n\n\u003cp\u003eAlternate Names: Za11; IL-21; CVID11; IL21\u003c\/p\u003e\n\n\u003cp\u003eSWISS: Q9HBE4\u003c\/p\u003e\n\n\u003cp\u003eGeneID: 59067\u003c\/p\u003e\n\n\u003cp\u003eSpecies: Human\u003c\/p\u003e\n\n\u003cp\u003ePurity: ≥ 90 % as determined by SDS-PAGE.\u003c\/p\u003e\n\n\u003cp\u003eStorage: Store at -20 ℃. Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt. After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week.\u003c\/p\u003e\n\n\u003cp\u003eBackground: IL21 belongs to the IL-15\/IL-21 family. It is a cytokine with immunoregulatory activity. Cytokines are proteinaceous signaling compounds that are major mediators of the immune response. They control many different cellular functions including proliferation, differentiation, and cell survival\/apoptosis but are also involved in several pathophysiological processes including viral infections and autoimmune diseases. Cytokines are synthesized under various stimuli by a variety of cells of both the innate (monocytes, macrophages, dendritic cells) and adaptive (T- and B-cells) immune systems. IL21 is expressed in activated CD4-positive T-cells but not in CD8-positive T-cells, B-cells, or monocytes. It may promote the transition between innate and adaptive immunity. IL-21 has been tried as a therapy for alleviating allergic responses. It can significantly decrease pro-inflammatory cytokines produced by T cells in addition to decreasing IgE levels in a mouse model for rhinitis (nasal passage inflammation).\u003c\/p\u003e\n\n\u003cp\u003eBio-Activity: Measured by its ability to induce Interferon gamma secretion by human natural killer lymphoma NK-92 cells. The ED50 for this effect is 2.7-10.8 ng\/mL, corresponding to a specific activity of 9.3×10^4 ~3.7×10^5 units\/mg.\u003c\/p\u003e\n\n\u003cp\u003eSource: HEK293 cells\u003c\/p\u003e\n\n\u003cp\u003eTag: No-tag\u003c\/p\u003e\n\n\u003cp\u003eFormulation: Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.\u003c\/p\u003e\n\n\u003cp\u003eAntigen Sequence: QDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHLSSRTHGSEDS\u003c\/p\u003e\n\n\u003cp\u003eEndotoxin: \u0026lt; 0.1 EU\/μg of the protein by LAL method.\u003c\/p\u003e\n\n\u003cp\u003eResearch Use Only\u003c\/p\u003e","brand":"ABclonal","offers":[{"title":"10ug","offer_id":45198339506355,"sku":"RP01708-10","price":168.0,"currency_code":"CAD","in_stock":true},{"title":"20ug","offer_id":45198339539123,"sku":"RP01708-20","price":252.0,"currency_code":"CAD","in_stock":true},{"title":"50ug","offer_id":45198339571891,"sku":"RP01708-50","price":420.0,"currency_code":"CAD","in_stock":true},{"title":"100ug","offer_id":45198339604659,"sku":"RP01708-100","price":672.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/files\/download_8cfcdbaa-1f94-4adb-9fff-32ac5742614c.png?v=1766960783","url":"https:\/\/afsbio.com\/products\/recombinant-human-il-21-protein-rp01708","provider":"AFSBio Inc.","version":"1.0","type":"link"}