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Recombinant Human Chymotrypsin C Protein (His Tag)(Active)
SKU: PKSH031117-50
Recombinant Human Chymotrypsin C Protein (His Tag)(Active)
| SKU # | PKSH031117 |
| Expression Host | HEK293 Cells |
Description
| Synonyms | CLCR, CTRC, Caldecrin, Chymotrypsin-C |
| Species | Human |
| Expression Host | HEK293 Cells |
| Sequence | Met 1-Leu 268 |
| Accession | Q99895 |
| Calculated Molecular Weight | 29.3 kDa |
| Observed Molecular Weight | 36 kDa |
| Tag | C-His |
| Bio-activity | Measured by its ability to cleave the fluorogenic peptide substrate, SUCAlaAlaProPheAMC. The specific activity is > 300 pmol/min/μg. |
Properties
| Purity | > 97 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 1.0 EU per μg of the protein as determined by the LAL method. |
| Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
| Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
| Formulation | Lyophilized from sterile PBS, pH 7.4 Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
| Reconstitution | Please refer to the printed manual for detailed information. |
Background
Chymotrypsin C (abbreviated for CTRC); also known as caldecrin or elastase4; is a digestive enzyme of the peptidase S1 family. This enzyme is synthesized as an inactivate chymotrypsinogen. On cleavage by trypsin into two parts that activate each other by removing two small peptides in a trans-proteolysis; chymotrypsin C produced. N-linked glycosylation of human CTRC is required for efficient folding and secretion; however; the N-linked glycan is unimportant for enzyme activity or inhibitor binding. It has been proposed that CTRC is a key regulator of digestive zymogen activation and a physiological co-activator of digestive carboxypeptidases proCPA1 and proCPA2. Mutations that abolish activity or secretion of CTRC increase the risk for chronic pancreatitis. It's speculated that CTRC might regulate pancreatic cancer cell migration in relation to cytokeratin 18 expression. The pancreatic cancer cell migration ability was downregulated in pancreatic cancer Aspc-1 cells that overexpressed CTRC; whereas the cell migration ability was upregulated in Aspc-1 cells in which CTRC was suppressed.