Corazonin is a neuropeptide expressed by neurons in insects. Corazonin plays a role in regulating metabolism, stress response, and some aspects of male reproduction. It is also a cardioactive peptide probably involved in the physiological regulation of the heart beat.Cockroach: pGlu-Thr-Phe-Gln-Tyr-Ser-Arg-Gly-Trp-Thr-Asn-NH2 or pETFQYSRGWTN-NH2