Neuropeptide stimulator of juvenile hormone synthesis. Allatotropin: Expressed in corpora cardiaca (CC), corpora allata (CA), antennal lobe (AL) and gnathal ganglion (GNG) (protein level). Expression in AL detected in all animals, expression in GNG detected in most animals and expression in CA and CC detected in few animals (at protein level). Allatotropin-PP-1: Expressed in corpora cardiaca (CC), corpora allata (CA), antennal lobe (AL) and gnathal ganglion (GNG) (at protein level). Expression in AL detected in all animals and expression in GNG, CA and CC detected in some animals (at protein level). Allatotropin-PP-1. Allatotropin.