Glu-Glu-Glu-Glu-Glu-Met-Ala-Val-Val-Pro-Gln-Gly-Leu-Phe-Arg-Gly-NH2

Pancreastatin (37-52), human is a pancreastatin fragment. Pancreastatin a CgA-derived peptide (CgA residues 250–301) with biological activity, inhibited the releasing of insulin by islet beta cells[1][2].

[1] Qiao XW, et al. Chromogranin A is a reliable serum diagnostic biomarker for pancreatic neuroendocrine tumors but not for insulinomas. BMC Endocr Disord. 2014 Aug 7;14:64. DOI:10.1186/1472-6823-14-64
[2] O'Dorisio TM, et al. Development of a highly sensitive and specific carboxy-terminal human pancreastatin assay to monitor neuroendocrine tumor behavior. Pancreas. 2010 Jul;39(5):611-6. DOI:10.1097/MPA.0b013e3181c68d7a