Description：Recombinant Human CTRB1 Protein is produced by Mammalian expression system and the target gene encoding Cys19-Asn263 is expressed with a 6His tag at the C-terminus.Form：Liquid in a 0.2 μM filtered solution of 20mM Tris-HCl, 150mM NaCl, pH 8.0.Gene Symbol：CTRB1Alternative Names：CTRB; Chymotrypsinogen B Entrez Gene (Human)： 1504; SwissProt (Human)： P17538; Purity：Greater than 95% as determined by SEC-HPLC and reducing SDS-PAGE.Chemical Structure：CGVPAIHPVL SGLSRIVNGE DAVPGSWPWQ VSLQDKTGFH FCGGSLISED WVVTAAHCGV RTSDVVVAGE FDQGSDEENI QVLKIAKVFK NPKFSILTVN NDITLLKLAT PARFSQTVSA VCLPSADDDF PAGTLCATTG WGKTKYNANK TPDKLQQAAL PLLSNAECKK SWGRRITDVM ICAGASGVSS CMGDSGGPLV CQKDGAWTLV GIVSWGSDTC STSSPGVYAR VTKLIPWVQK ILAANVDHHH 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：Store it at -20°C to -80°C for one year. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.