Human Angiotensin-converting enzyme (ACE) belongs to the M2 gluzincin family of metalloproteinases and (Ehlers and Riordan, 1989; Masuyer et al., 2014) exists in two forms, namely somatic ACE (sACE) and germinal ACE (tACE). Both are derived from the same gene, controlled by alternative promotors. sACE is an integral membrane protein, which can be also cleaved by ACE secretases to produce a circulating form of the enzyme (Natesh et al., 2003).