> 80% as determined by SDS-PAGE and Coomassie blue staining
Human HEK293 cells
Expression TrueORF Clone
CTRB1 Full-Length MS Protein Standard (NP_001897), Labeled with [U- 13C6, 15N4]-L-Arginine and [U- 13C6, 15N2]-L-Lysine, was produced in human 293 cells (HEK293) with fully chemically defined cell culture medium to obtain incorporation efficiency at Creative-Proteomics. The protein encoded by this gene is one of a family of serine proteases that is secreted into the gastrointestinal tract as an inactive precursor, which is activated by proteolytic cleavage with trypsin.