Recombinant human Cathepsin E protein
CTSE is a gastric aspartyl protease that functions as a disulfide-linked homodimer. CTSE, 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. Recombinant human CTSE protein, fused to His-tag at N-terminus, was expressed in E. coli.
Product Specifications
Product Name Alternative
Cathepsin E, CATE, CTSE
Expression System
E.coli
Antigen Species
Human
Tag
His-Tag
Applications
SDS-PAGE, Denatured
Concentration
1 mg/mL (determined by Bradford assay)
Purity
> 85% by SDS-PAGE
Molecular Weight
35.4 kDa (330aa)
Additionnal Information
References & Citations
Sealy L., et al. (1996) Eur. J. Immunol. 26:1838-1843; ; Cook M., et al. (2001) Eur. J. Biochem. 268:2658-2668;
Storage Conditions
Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.
Formulation
Liquid in. 20 mM Tris-HCl buffer (pH 8.0) containing 0.4M urea, 10% glycerol
Scientific Category
Immunology
NCBI Accession Number
NP_683865
Uniprot Accession Number
P14091
Species
Human
AA Sequence
Frequently Asked Questions
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