The sense of smell enables insects to recognize and discriminate a broad range of volatile
chemicals in their environment originating from prey, host plants and conspecifics. These …

There is broad consensus that olfactory signaling in vertebrates and the nematode C.
elegans uses canonical G-protein-coupled receptor transduction pathways. In contrast …

Drosophila olfactory sensory neurons (OSNs) each express two odorant receptors (ORs): a
divergent member of the OR family and the highly conserved, broadly expressed receptor …

Go is the most abundant G protein in the central nervous system, where it comprises about
1% of membrane protein in mammalian brains. It functions to couple cell surface receptors to …

Among the insect olfactory receptors the odorant receptors (ORs) evolved in parallel to the
onset of insect flight. A special property of this receptor type is the capability to adjust …

A central question in insect chemoreception is whether signaling occurs via G-proteins. Two
families of seven-transmembrane-domain chemoreceptors, the odor (Or) and gustatory …

Background The red flour beetle Tribolium castaneum is an emerging insect model
organism representing the largest insect order, Coleoptera, which encompasses several …

Calling female moths attract their mates late at night with intermittent release of a species-
specific sex-pheromone blend. Mean frequency of pheromone filaments encodes distance …

Mate-finding communication in many moths is mediated by sex pheromones produced by
females. Since the differentiation of sex pheromones is often associated with speciation, it is …

Seven-transmembrane receptors typically mediate olfactory signal transduction by coupling
to G-proteins. Although insect odorant receptors have seven transmembrane domains like G …