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: CTRB1 Alternative Names: CTRB; Chymotrypsinogen BEntrez Gene (Human): 1504SwissProt (Human): P17538Purity : 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 HHH Directions 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.