{"product_id":"bafftnfsf13bcd257-trimer-his-tag-protein-human-ua016073","title":"BAFF\/TNFSF13B\/CD257 Trimer His Tag Protein, Human","description":"\u003ch4\u003eProduct Specification\u003c\/h4\u003e\u003cdiv class=\"responsive-table product-detail-table details-table\"\u003e\n\u003cbr\u003e\u003ctable style=\"width: 100%; height: auto;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eSpecies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eHuman\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eSynonyms\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eB-cell-activating factor, B lymphocyte stimulator (BLyS), TNFSF13B, BLYS, TALL1, TNFSF20, ZTNF4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eAccession\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eQ9Y275\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eAmino Acid Sequence\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003eAla134-Leu285 with His Tag at the N-Terminus\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eExpression System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eHEK293\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eMolecular Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp style=\"margin-bottom: 0px;\"\u003e15-25kDa (Reducing)\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003ePurity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e＞90% by SDS-PAGE,\u0026gt; 95% by HPLC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eConjugation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eUnconjugated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eTag\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eHis Tag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003ePhysical Appearance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003eLyophilized Powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eStorage Buffer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003ePBS, pH7.4, 5% trehalose\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eReconstitution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp style=\"margin-bottom: 0px;\"\u003eReconstitute at 0.1-1 mg\/ml according to the size in ultrapure water after rapid centrifugation.\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eStability \u0026amp; Storage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003e· 12 months from date of receipt, lyophilized powder stored at -20 to -80℃.\u003cbr\u003e· 3 months, -20 to -80℃ under sterile conditions after reconstitution.\u003cbr\u003e· 1 week, 2 to 8℃ under sterile conditions after reconstitution.\u003cbr\u003e· Please avoid repeated freeze-thaw cycles.\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 22%;\"\u003e\u003cstrong\u003eReference\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 78%;\"\u003e\u003cp\u003e1.Vincent FB, Morand EF, Mackay F. BAFF and innate immunity: new therapeutic targets for systemic lupus erythematosus. Immunol Cell Biol. 2012 Mar;90(3):293-303.\u003cbr\u003e2.Shin W, Lee HT, Lim H, Lee SH, Son JY, Lee JU, Yoo KY, Ryu SE, Rhie J, Lee JY, Heo YS. BAFF-neutralizing interaction of belimumab related to its therapeutic efficacy for treating systemic lupus erythematosus. Nat Commun. 2018 Mar 23;9(1):1200.\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\u003ch4\u003eBackground\u003c\/h4\u003e\u003cdiv\u003e\u003cp\u003e\u003cspan\u003eBAFF (B cell activating factor), also known as BLyS\/TALL-1\/TNFSF13B, is a member of the TNF superfamily that exists as a homotrimer and regulates B cell survival through specific binding to three receptors: BAFF-R, TACI, and BCMA. BAFF is a type II transmembrane protein with an extracellular domain forming a β-sheet-rich \"sandwich\" structure; the receptor-binding interface comprises the DE loop and N-terminal loop, whose surface charge distribution determines high-affinity binding to BAFF-R and cross-recognition with TACI\/BCMA. BAFF serves as a central regulator of B cell development, homeostasis maintenance, and humoral immunity, promoting transitional B cell survival, germinal center reactions, and antibody class switching. BAFF overexpression is closely associated with autoimmune diseases including systemic lupus erythematosus, rheumatoid arthritis, and Sjögren's syndrome, with serum levels serving as disease activity biomarkers; the BAFF-targeting monoclonal antibody Belimumab represents the first new drug approved for SLE in 50 years, significantly improving patient outcomes by blocking BAFF-receptor interactions and reducing autoreactive B cells, marking a landmark milestone in B cell-targeted therapy.\u003c\/span\u003e\u003c\/p\u003e\u003c\/div\u003e","brand":"UA BIOSCIENCE","offers":[{"title":"25μg","offer_id":43049382182987,"sku":"UA016073-25μg","price":215.0,"currency_code":"USD","in_stock":true},{"title":"100μg","offer_id":43049382215755,"sku":"UA016073-100μg","price":430.0,"currency_code":"USD","in_stock":true},{"title":"500μg","offer_id":43049382248523,"sku":"UA016073-500μg","price":1205.0,"currency_code":"USD","in_stock":true},{"title":"1mg","offer_id":43049382281291,"sku":"UA016073-1mg","price":1920.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/8375\/1499\/files\/377a5cdeeae744a8abb8ca5ffbc1569a.png?v=1787115631","url":"https:\/\/www.antbioinc.com\/products\/bafftnfsf13bcd257-trimer-his-tag-protein-human-ua016073","provider":"AntBio","version":"1.0","type":"link"}