Mouse Prostasin / PRSS8 (aa 30-289) Protein (His Tag)

Protease, serine, 8 (prostasin) Protein Datasheet

Prostasin / PRSS8 Protein Product Information

• Synonym: 2410039E18Rik, AI313909, C79772, CAP1, fr, mCAP1
• Protein Construction: A DNA sequence encoding the mouse PRSS8 (EDL17608.1) (Ala 30- Gln 289) was expressed，fused with a polyhistidine tag at the C-terminus and a signal peptide at the N-terminus.
• Source: Mouse
• Expression Host: Baculovirus-Insect cells

Prostasin / PRSS8 Protein QC Testing

• Purity: > 97 % as determined by SDS-PAGE
• Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method
• Stability: Samples are stable for up to twelve months from date of receipt at -70℃
• Predicted N terminal: Ala 30
• Molecular Mass: The secreted recombinant mouse PRSS8 consists of 270 amino acids and has a calculated molecular mass of 29.3 kDa. It migrates as an approximately 35 KDa band in SDS-PAGE under reducing conditions.
• Formulation: Lyophilized from sterile 20mM Tris, 500mM NaCl, pH7.4.
  1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
  2. Please contact us for any concerns or special requirements.
• SDS-PAGE: Prostasin / PRSS8 protein

Prostasin / PRSS8 Protein Usage Guide

• Storage: Store it under sterile conditions at -70℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
• Reconstitution: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.

Prostasin / PRSS8 Protein Description

Prostasin (Prss8), also known as channel activating protease 1 (CAP1), is a trypsinlike serine peptidase, and plays important roles in epithelial physiology. It is originally purified as an active, soluble enzyme from human seminal fluid and is highly expressed in prostate, lung, kidney, salivary gland and pancreas. Prostasin is expressed as a glycosyl-phosphatidylinositol (GPI)-anchored membrane protein in prostate epithelial cells, and also exists as a secreted proteolytic enzyme possibly via tryptic cleavage of its COOH-terminal hydrophobic domain. Prostasin is found to activate the epithelial sodium channel (ENaC) which is tightly regulated and is critical for maintaining salt and fluid balance in the lung and kidney in both normal and pathological conditions. Accordingly, prostasin has been proposed as a target for therapeutic inhibition in cystic fibrosis. In addition, prostasin inhibits prostate and breast cancer cell invasion in vitro, suggesting a functional role as a suppressor of tumor invasion, as well as a regulator of gene expression during inflammation.

References

1. Yu JX. et al., 1994, J Biol Chem. 269: 18843-8.
2. Chen LM. 2001, J Biol Chem. 276: 21434-42.
3. Chen LM. et al., 2002, Int J Cancer. 97: 323-9.
4. Chen M. et al., 2007, Biochim Biophys Acta. 1733: 1133-40.
5. Verghese GM. et al., 2006, Am J Physiol Cell Physiol. 291: c1285-1270.