The processing of Chromogranin A, a pro-hormone in secretory granules of chromaffin cells and post-ganglionic sympathetic neurons, yields several biologically active polypeptides including catestatin. Catestatin is a nicotinic-cholinergic antagonist that diminishes catecholamine release, and whose plasma concentration may be diminished in hypertension. Catestatin may also constitute an early or “intermediate phenotype” in assessing genetic risk for cardiovascular disease.
This is a rabbit polyclonal antibody that detects catestatin peptide by ELISA and Westerns blots with very high affinity and avidity. This polyclonal Ab is to a specific catestatin domain of human Chromogranin A (CHGA 352-372).
The antibody can be utilized for ELISA and Western blots.