Human BAFF / TNFSF13B / CD257 Protein, His,Flag Tag, active trimer (MALS verified)
分子別名(Synonym)
TNFSF13B,BAFF,BLYS,CD257,DTL,TALL1,THANK,TNFSF20,ZTNF4,TALL-1
表達區(qū)間及表達系統(tǒng)(Source)
Human BAFF Protein, His,Flag Tag (BAF-H52D4) is expressed from human 293 cells (HEK293). It contains AA Glu 140 - Leu 285 (Accession # AAH20674.1) trimer Design.
Predicted N-terminus: His
蛋白結構(Molecular Characterization)
This protein carries a polyhistidine tag at the N-terminus, followed by a flag tag.
The protein has a calculated MW of 52.5 kDa. The protein migrates as 55-60 kDa under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.
內毒素(Endotoxin)
Less than 1.0 EU per μg by the LAL method.
純度(Purity)
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
制劑(Formulation)
Lyophilized from 0.22 μm filtered solution in 25 mM MES, 150 mM NaCl, pH 6.0 with trehalose as protectant.
Contact us for customized product form or formulation.
重構方法(Reconstitution)
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存儲(Storage)
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.
背景(Background)
B細胞活化因子(BAFF)也稱為腫瘤壞死因子配體超家族成員13B、TNFSF13B、BAFF、B淋巴細胞刺激因子(BLyS)、分化簇257(CD257)、DTL、TNF-和APOL相關白細胞表達配體(TALL-1)、THANK、TNFSF20、ZTNF4,是一種屬于腫瘤壞死因子(TNF)配體家族的細胞因子。這種細胞因子是受體TNFRSF13B/TACI、TNFRSF17/BCMA和TNFRSF13C/BAFFR的配體。這種細胞因子在B細胞譜系細胞中表達,并作為一種強效的B細胞激活劑。它也被證明在B細胞的增殖和分化中起著重要作用。它在各種細胞類型上表達為跨膜蛋白,包括單核細胞、樹突狀細胞和骨髓基質細胞。BAFF是三種不尋常的腫瘤壞死因子受體BAFF-R、TACI和BCMA的天然配體,所有這些受體對BAFF都有不同的結合親和力。這些受體主要在成熟的B淋巴細胞上表達(TACI也存在于T細胞的一個子集上,BCMA存在于漿細胞上)。TACI結合最差,因為它對一種類似于BAFF的蛋白質的親和力更高,這種蛋白質被稱為增殖誘導配體(APRIL)。BCMA顯示出中間結合表型,并將在不同程度上與BAFF或APRIL一起使用。通過BAFF-R和BCMA的信號傳導刺激B淋巴細胞進行增殖和抗凋亡。所有這些配體都充當與異三聚體受體相互作用的異三聚體(即同一分子的三個),盡管已知BAFF作為異三聚體或同源三聚體具有活性。BAFF作為一種強效的B細胞激活劑,已被證明在B細胞的增殖和分化中起著重要作用。
關鍵字: BAFF;BAFF蛋白;BAFF重組蛋白;ACRO;百普賽斯;
百普賽斯集團ACROBiosystems Group(股票代碼:301080)是成立于2010年的跨國生物科技公司,是為全球生物醫(yī)藥、健康產業(yè)領域提供關鍵生物試劑產品及解決方案的行業(yè)平臺型基石企業(yè)。2021年在創(chuàng)業(yè)板上市。百普賽斯集團業(yè)務遍布全球,橫跨亞洲、北美洲、歐洲,在中國、美國、瑞士等12個城市設有辦公室、研發(fā)中心及生產基地。目前累計服務客戶超6000家,與全球Top 20醫(yī)藥企業(yè)均建立了長期、穩(wěn)定的合作伙伴關系。集團旗下?lián)碛衅放艫CROBiosystems百普賽斯、bioSeedin柏思薈、Condense Capital墾拓資本和ACRODiagnostics百斯醫(yī)學等。