产品描述：Recombinant Human CD28 Protein is produced by mammalian expression system and the target gene encoding Asn19-Pro152 is expressed with a Fc tag at the C-terminus.产品形式：Lyophilized from a 0.2 μM filtered solution of PBS, pH 7.4.基因名称：CD28相关名称：T-cell-specific surface glycoprotein CD28; TP44; CD28 基因编号(人)： 940; 蛋白编号(人)： P10747; 纯度：Greater than 95% as determined by reducing SDS-PAGE.化学结构：NKILVKQSPM LVAYDNAVNL SCKYSYNLFS REFRASLHKG LDSAVEVCVV YGNYSQQLQV YSKTGFNCDG KLGNESVTFY LQNLYVNQTD IYFCKIEVMY PPPYLDNEKS NGTIIHVKGK HLCPSPLFPG PSKPVDDIEG RMDEPKSCDK THTCPPCPAP ELLGGPSVFL FPPKPKDTLM ISRTPEVTCV VVDVSHEDPE VKFNWYVDGV EVHNAKTKPR EEQYNSTYRV VSVLTVLHQD WLNGKEYKCK VSNKALPAPI EKTISKAKGQ PREPQVYTLP PSREEMTKNQ VSLTCLVKGF YPSDIAVEWE SNGQPENNYK TTPPVLDSDG SFFLYSKLTV DKSRWQQGNV FSCSVMHEAL HNHYTQKSLS LSPGK使用指导：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 1X PBS. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.质量控制：Endotoxin: Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test.储存效期：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.