Biotinylated Human IL-31 Protein, His,Avitag? (MALS verified)
分子別名（Synonym）
IL-31,IL31,Interleukin-31
表達(dá)區(qū)間及表達(dá)系統(tǒng)（Source）
Biotinylated Human IL-31 Protein, His,Avitag (IL1-H82E6) is expressed from human 293 cells (HEK293). It contains AA Ser 24 - Thr 164 (Accession # Q6EBC2-1).
Predicted N-terminus: His
蛋白結(jié)構(gòu)（Molecular Characterization）
This protein carries a polyhistidine tag at the N-terminus and an Avi tag (Avitag?) at the C-terminus.
The protein has a calculated MW of 19.9 kDa. The protein migrates as 27-35 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
標(biāo)記（Labeling）
Biotinylation of this product is performed using Avitag? technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
蛋白標(biāo)記度（Protein Ratio）
Passed as determined by the HABA assay / binding ELISA.
內(nèi)毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method.
純度（Purity）
>90% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
制劑（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重構(gòu)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）
IL-31 is an inflammatory cytokine that helps trigger cell-mediated immunity against pathogens. Activates STAT3 and possibly STAT1 and STAT5 through the IL31 heterodimeric receptor composed of IL31RA and OSMR. It has also been identified as a major player in a number of chronic inflammatory diseases, including atopic dermatitis. May function in skin immunity. IL-31 is produced by a variety of cells, namely type 2 helper (TH2) T-cells. IL-31 sends signals through a receptor complex made of IL-31RA and oncostatin M receptor β (OSMRβ) expressed in immune and epithelial cells. These signals activate three pathways: ERK1/2 MAP kinase, PI3K/AKT, and JAK1/2 signaling pathways.
關(guān)鍵字： IL-31;IL-31蛋白;IL-31重組蛋白;ACRO;百普賽斯;
百普賽斯集團(tuán)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(chǎn)業(yè)領(lǐng)域提供關(guān)鍵生物試劑產(chǎn)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(tuán)業(yè)務(wù)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(shè)有辦公室、研發(fā)中心及生產(chǎn)基地。目前累計服務(wù)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(guān)系。集團(tuán)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(xué)等。