Chromogranin a (124-143) (bovine)

Chromostatin bovine is a chromogranin A (CGA) derivative peptide, which inhibits postassium or carbamoylcholine induced catecholamine release with an ID50 of 5 nM. Chromostatin bovine reduces calcium flux, enhances the desensitization process of the cholinergic-evoked secretory response and modulates the endocrine response associated with catecholamine[1].

[1] Galindo E, et al., Chromostatin, a 20-amino acid peptide derived from chromogranin A, inhibits chromaffin cell secretion. Proc Natl Acad Sci U S A. 1991 Feb 15;88(4):1426-30. DOI:10.1073/pnas.88.4.1426