CTSE抗原（重组蛋白）

Full name:

Cathepsin E

Synonyms:

CATE

Swissprot:

P14091

Gene Accession:

BC042537

Purity:

>85%, as determined by Coomassie blue stained SDS-PAGE

Expression system:

Escherichia coli

Tags:

His tag C-Terminus, GST tag N-Terminus

Background:

The protein encoded by this gene is a gastric aspartyl protease that functions as a disulfide-linked homodimer. This protease, which is a member of the peptidase C1 family, has a specificity similar to that of pepsin A and cathepsin D. It is an intracellular proteinase that does not appear to be involved in the digestion of dietary protein and is found in highest concentration in the surface of epithelial mucus-producing cells of the stomach. It is the first aspartic proteinase expressed in the fetal stomach and is found in more than half of gastric cancers. It appears, therefore, to be an oncofetal antigen. Transcript variants utilizing alternative polyadenylation signals and two transcript variants encoding different isoforms exist for this gene.