Recombinant Human CD30/TNFRSF8(His-Avi Tag)

Description :
FAQ COA 已发表文献 CD30, also known as Ki-1 antigen and TNFRSF8, is a 120 kDa type I transmembrane glycoprotein belonging to the TNF receptor superfamily. Mature human CD30 consists of a 361 aa extracellular domain (ECD) with six cysteine-rich repeats, a 28 aa transmembrane segment, and a 188aa cytoplasmic domain. In contrast, mouse and rat CD30 lack 90 aa of the ECD and contain only three cysteine-rich repeats. Within common regions of the ECD, human CD30 shares 53% and 49% aa sequence identity with mouse and rat CD30, respectively. Alternate splicing of human CD30 generates an isoform that includes only the Cterminal 132 aa of the cytoplasmic domain. CD30 is normally expressed on antigen-stimulated Th cells and B cells. However, it is upregulated in Hodgkins disease (on Reed-Sternberg cells), other lymphomas, chronic inflammation, and autoimmunity. CD30 binds to CD30 Ligand/TNFSF8 which is expressed on activated Th cells, monocytes, granulocytes and medullary thymic epithelial cells. CD30 signaling costimulates antigen-induced Th0 and Th2 proliferation and cytokine secretion but favors a Th2-biased immune response. In the absence of antigenic stimulation, it can still induce T cell expression of IL-13. CD30 contributes to thymic negative selection by inducing the apoptotic cell death of CD4+CD8+ T cells. 产品性质 别名Synonyms CD30; CD30KI-1; CD30L receptor; TNFRSF8; D1S166EKi-1; CD30KI-1 Uniprot No. P28908-1 Source Recombinant Human CD30/TNFRSF8 Protein is expressed from HEK293 Cellswith His tag and Avi tag at the C-terminal. It contains Phe19-Lys379. 分子量(Molecular Weight) The protein has a predicted MW of 41.3 kDa. Due to glycosylation, the protein migrates to 68-95 kDa based on Tris-Bis PAGE result. 外观(Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder. Purity > 95% as determined by SDS-PAGEand HPLC Activity ELISA DataImmobilized Human CD30, His Tag at 1g/ml (100l/Well) on the plate. Dose response curve for Human CD30 Ligand, mFc Tag with the EC50of 0.16g/ml determined by ELISA. 内毒素Endotoxin 1.0EU per 1g of the protein by the LAL method. Formulation Lyophilized from 0.22m filtered solution in PBS (pH 7.4). Normally 5% trehalose is added as protectant before lyophilization. 复溶Reconstitution Centrifuge tubes before opening. Reconstituting to a concentration more than 100 g/mLis recommended (usually we use 1mg/mLsolution for lyophilization). Dissolve the lyophilized protein in distilled water.