Description：Recombinant Mouse IL-21 Protein is produced by E.coli expression system and the target gene encoding Pro25-Ser146 is expressed with a 6His tag at the N-terminus.Form：Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH7.4.Gene Symbol：IL21Alternative Names：Interleukin-21; IL-21; Za11 Entrez Gene (Mouse)： 60505; SwissProt (Mouse)： Q9ES17; Purity：Greater than 95% as determined by reducing SDS-PAGE.Chemical Structure：MGSSHHHHHH SSGLVPRGSH MPDRLLIRLR HLIDIVEQLK IYENDLDPEL LSAPQDVKGH CEHAAFACFQ KAKLKPSNPG NNKTFIIDLV AQLRRRLPAR RGGKKQKHIA KCPSCDSYEK RTPKEFLERL KWLLQKMIHQ HLSDirections for Use：Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/ml. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.Quality Control：Endotoxin: Less than 0.1 ng/µg (1 IEU/µg) as determined by LAL test.Storage/Stability：Lyophilized protein should be stored at -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at -20°C for 3 months.