Recombinant Human Chymotrypsinogen B/CTRB produced by transfected human cells is a secreted protein with sequence (Cys19-Asn263) of Human CTRB fused with a polyhistidine tag at the C-terminus.
纯度
> 95 % as determined by reducing SDS-PAGE.
过滤
0.2 μm filtered
内毒素水平
Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test
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.
缓冲液
Supplied as a 0.2 μm filtered solution of 20 mM TrisHCl, 150 mM NaCl, pH 8.0.
注意事项
Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
储存条件
-80 °C
储存方法
Store at < -20°C, stable for 6 months after receipt. Please minimize freeze-thaw cycles.
Chymotrypsinogen B (CTRB1) is a 263 amino acid protein with signal peptide (1-18) and Chymotrypsinogen B (19-263). Chymotrypsinogen B have three chains:Chymotrypsin B chain A(19-31), Chymotrypsin B chain B(34-164), Chymotrypsin B chain C (167-263). Chymotrypsinogen B is a Serine Protease Hydrolase secrets into gastrointestinal tract as the inactive precursor Chymotrypsinogen. Alternative Names: Chymotrypsinogen B, CTRB1, CTRB