Carboxypeptidases have functions ranging from digestion of food to selective biosynthesis of neuroendocrine peptides. Members of the A/B subfamily of carboxypeptidases, such as CPA5, contain an approximately 90-amino acid pro region that assists in the folding of the active carboxypeptidase domain. Cleavage of the pro region activates the enzyme (Wei et al., 2002 [PubMed 11836249]).[supplied by OMIM, Mar 2008]
Forensic Context
A study in Wistar-albino rats demonstrated that the CPA5 gene, identified as differentially expressed in response to mild traumatic brain injury, was down-regulated at 12 hours post-trauma and subsequently up-regulated at 48 hours post-trauma [Colak et al. DOI:10.1016/j.injury.2012.01.021].