Recombinant Human 4-1BBL/TNFSF9

Description :
FAQ COA 已发表文献 4-1BBL, a member of the TNF superfamily, is expressed in B cells, dendritic cells, activated T cells and macrophages. 4-1BBL binds to its receptor 4-1BB, and provides a co-stimulatory signal for T cell activation and expansion. The human 4-1BBL gene codes for a 254 amino acid type II transmembrane containing a 28 amino acid cytoplasmic domain, a 21 amino acid transmembrane protein domain, and a 205 amino acid extracellular domain. The soluble form of 4-1BBL contains the TNF-like portion of the extracellular domain of 4-1BBL. Recombinant Human 4-1BBL is a soluble 19.5 kDa protein consisting of 185 amino acid residues. Product Properties Synonyms TNFSF9, CD137L Accession P41273 GeneID 8744 Source E.coli-derived Human 4-1BB Ligand/TNFSF9protein,Arg71-Glu254. Molecular Weight Approximately 19.4 kDa. AA Sequence REGPELSPDD PAGLLDLRQG MFAQLVAQNV LLIDGPLSWY SDPGLAGVSL TGGLSYKEDT KELVVAKAGV YYVFFQLELR RVVAGEGSGS VSLALHLQPL RSAAGAAALA LTVDLPPASS EARNSAFGFQ GRLLHLSAGQ RLGVHLHTEA RARHAWQLTQ GATVLGLFRV TPEIPAGLPS PRSE Tag None Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder. Purity > 95% by SDS-PAGE and HPLC analyses. Biological Activity Fully biologically active when compared to standard. The ED50as determined by stimulation of IL-8 production using human PBMC is less than 10 ng/mL, corresponding to a specific activity of > 1.0 105IU/mg. Endotoxin Formulation Lyophilized from a 0.2 m filtered concentrated solution in PBS, pH 7.4. Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in 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 -20C. Further dilutions should be made in appropriate buffered solutions.