Fuente: WIPO "biotechnology" The present invention provides isolated nucleic acids encoding insect G protein-coupled receptor (GPCR) polypeptides, isolated insect GPCR polypeptides, and uses thereof. Further provided are recombinant proteins and methods for identifying inhibitors to these proteins. The disclosed insect GPCR nucleic acids and polypeptides can be used in screening assays to identify modulating compounds. Protein inhibitors active in the methods disclosed herein are useful as insecticidal, ectoparasiticidal, antiparasitic, anthenenthic and acaracidal agents.