The protein encoded by this gene is a member of the chromogranin/secretogranin family of neuroendocrine secretory proteins. It is found in secretory vesicles of neurons and endocrine cells. This gene product is a precursor to three biologically active peptides; vasostatin , pancreastatin , and parastatin. These peptides act as autocrine or paracrine negative modulators of the neuroendocrine system. Two other peptides , catestatin and chromofungin , have antimicrobial activity and antifungal activity , respectively. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq , Sep 2014] ,
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