Recombinant Mouse ACE/CD143 Somatic Form is prone to proteolytic cleavage at C-terminus. The predominant form of the purified protein lacks the His tag.
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
<1.0 EU per 1 μg of the protein by the LAL method.
143 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
160 kDa, reducing conditions
Read Publication using 1513-ZN in the following applications:
angiotensin I converting enzyme (peptidyl-dipeptidase A) 1
dipeptidyl carboxypeptidase 1
Dipeptidyl carboxypeptidase I
ACE (also known as peptidyl-dipetidase A) is a zinc metallopeptidase important for blood pressure control and water and salt metabolism (1). It cleaves the C-terminal dipeptide from angiotensin I to produce the potent vasopressor octapeptide angiotensin II and inactivates bradykinin by the sequential removal of two C-terminal dipeptides. In addition to the two physiological substrates, ACE cleaves C-terminal dipeptides from various oligopeptides with a free C-terminus. Because of its location and specificity, ACE plays additional roles in immunity, reproduction and neuropeptide regulation. For example, ACE degrades Alzheimer amyloid beta -peptide (A beta ), retards A beta aggregation, deposition, fibril formation, and inhibits cytotoxicity (2).
ACE is a type I membrane protein and exists in two isoforms (1). Somatic ACE, found in endothelial, epithelial and neuronal cells, comprises two highly similar catalytic domains called N- and C-domains. Germinal ACE, found exclusively in the testes, comprises a single catalytic domain identical to the C-domain of somatic ACE except for an N-terminal 67 residue germinal ACE-specific sequence. Physiological functions of the two tissue-specific isozymes are not interchangeable (3). For example, sperm-specific expression of the germinal ACE, not the somatic ACE, in ACE knockout male mice restored fertility.
Soluble ACE is present in many biological fluids, such as serum, seminal fluid, amniotic fluid and cerebrospinal fluid (1). The soluble ACE is derived from the membrane forms by actions of secretases or sheddases. The identities of the secretases have not been revealed, although they belong to the family of zinc metallopeptidases (4, 5).
Corvol, P. et al. (2004) in Handbook of Proteolytic Enzymes (Barrett, A.J. et al., eds.) p. 332, Academic Press, San Diego.
Hu, J. et al. (2001) J. Biol. Chem. 276:47863.
Kessler, S.P. et al. (2000) J. Biol. Chem. 275:26259.
Eyries, M. et al. (2001) J. Biol. Chem. 276:5525.
Alfalah, M. et al. (2001) J. Biol. Chem. 276:21105.
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