Recombinant Human Soluble Tumor Necrosis Factor Receptor Type I/TNFRSF1A/UN272

Recombinant Human Soluble Tumor Necrosis Factor Receptor Type I/TNFRSF1A 

货号： UN272 

规格： 5μg/20μg/50μg/100μg/250μg/500μg/1mg

产品详情：

Recombinant Human Soluble Tumor Necrosis Factor Receptor Type I/TNFRSF1A TNF RI, also named as TNFR-I, TNF R1, TNFRSF1A, p55 and p60, belongs to the tumor necrosis factor receptor superfamily. TNF RI is a universally expressed protein and is thought to form homotrimers after ligand binding. TNF RI is one of the major receptors for the TNF-α. This receptor can activate the transcription factor NF-κB, mediate apoptosis, and function as a regulator of inflammation. Mature human soluble TNF RI shares 68% ~73%a.a. sequence identity with murine, rat, bovine and porcine soluble TNF RI. Recombinant Human sTNF RI/TNFRSF1A is a 21.2kDa non-glycosylated protein containing 190 amino acid residues. 名称缩写/Abbreviation：   rHusTNF RI/TNFRSF1A

货号/Item No.：   UN272

表达系统/Source：   Expressed in E. coli.

分子量/Molecular Weight：   Approximately 21.2 kDa, a single non-glycosylated polypeptide chain containing 190 amino acids.

SCI的检索号/Accession #：   P19438 Ile22-Thr211

蛋白序列/A.A. Sequence：   IYPSGVIGLVPHLGDREKRDSVCPQGKYIHPQNNSICCTKCHKGTYLYNDCPGPGQDTDCRECESGSFTASENHLRHCLSCSKCRKEMGQVEISSCTVDRDTVCGCRKNQYRHYWSENLFQCFNCSLCLNGTVHLSCQEKQNTVCTCHAGFFLRENECVSCSNCKKSLECTKLCLPQIENVKGTEDSGTT

纯度/Purity：   ＞97% by SDS-PAGE or HPLC.

活性/Biological Activity：   Fully biologically active when compared to standard. The ED₅₀ as determined by its ability to inhibit the TNF-alpha mediated cytotoxicity in the L-929 cells is less than 0.05 μg/ml, corresponding to a specific activity of ≥ 2×10⁴ IU/mg in the presence of 0.25 ng/mL of rHuTNF-alpha.

配方/Formulation：   Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.4.

外观/Appearance：   Sterile filtered White lyophilized (freeze-dried) powder.

内毒素/Endotoxin：   < 0.01 EU/μg of rHusTNF RI/TNFRSF1A protein as determined by LAL method.

复溶/Reconstitution：   Before use this product, please read the direction below carefully. This vial must be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in a sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤ -20℃. Further dilutions should be made in appropriate buffered solutions.

稳定性和存储/Stability & Storage：   For long term storage, the product should be stored ≤ -20℃. Please avoid repeated freeze-thaw cycles after reconstitution. 36 months from date of receipt, -20 to -70℃ as supplied. 1 month, 2 to 8℃ under sterile conditions after reconstitution. 3 months, -20 to -70℃ under sterile conditions after reconstitution. * THIS PRODUCT IS FOR RESEARCH, LABORATORY AND EVALUATION PURPOSE ONLY.