Recombinant Human IL-21 Protein

Description :
别名Synonyms Interleukin-21; IL21; Za11 Source E.coli-derived human IL-21 protein, Gln30-Ser162 without tag. Accession Q9HBE4 Molecular Weight Approximately 15.4 kDa. 氨基酸序列AA Sequence QGQDRHMIRM RQLIDIVDQL KNYVNDLVPE FLPAPEDVET NCEWSAFSCF QKAQLKSANT GNNERIINVS IKKLKRKPPS TNAGRRQKHR LTCPSCDSYE KKPPKEFLER FKSLLQKMIH QHLSSRTHGS EDS 内毒素Endotoxin by the LAL method. Purity > 97% SDS-PAGE和 HPLC检测 生物Biological Activity Fully biologically active when compared to standard. Measured by its ability to enhance IFN-gamma secretion in NK-92 human natural killer lymphoma cells. The ED50for this effect is 2 ng/mL. The specific activity of recombinant human IL-21 > 5.0 105U/mg. Formulation Lyophilized from a 0.2 m filtered concentrated solution in PBS, pH 7.4. 外观Physical Appearance 白色冻干粉