Description：Recombinant Human CGB3/CGB5/CGB7/CGB8 Protein is produced by mammalian expression system and the target gene encoding Ser21-Gln165 is expressed with a 6His tag at the C-terminus.Form：Lyophilized from a 0.2 μM filtered solution of 20mM PB, 150mM NaCl, pH 7.4.Gene Symbol：CGB3; CGB5; CGB7; CGB8Alternative Names：CGB3; Choriogonadotropin subunit beta; CG-beta; Chorionic gonadotrophin chain beta Entrez Gene (Human)： 1082; 93659; 94027; 94115; SwissProt (Human)： P0DN86; P0DN87; Purity：Greater than 95% as determined by reducing SDS-PAGE.Chemical Structure：SKEPLRPRCR PINATLAVEK EGCPVCITVN TTICAGYCPT MTRVLQGVLP ALPQVVCNYR DVRFESIRLP GCPRGVNPVV SYAVALSCQC ALCRRSTTDC GGPKDHPLTC DDPRFQDSSS SKAPPPSLPS PSRLPGPSDT PILPQVDHHH HHHDirections 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 1X PBS. 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.