Bed bug chemoreceptor (Cl-CR)

Bed bug chemoreceptors are a specialized class of sensory proteins found in the common bed bug, Cimex lectularius, which include odorant receptors (ORs), gustatory receptors (GRs), and ionotropic receptors (IRs) (Benoit et al., 2016, Nature Communications). These receptors are primarily expressed in the sensilla of the antennae and are fundamental to the insect's ability to navigate its environment, locate human hosts for blood meals, and identify mates through pheromone signaling (Leal, 2013, Annual Review of Entomology). The bed bug genome encodes approximately 44 ORs, 33 GRs, and 46 IRs, which function as ligand-gated ion channels or GPCR-like structures to transduce chemical signals into neuronal activity (Rosenfeld et al., 2016, Nature Communications). From a therapeutic and public health perspective, these receptors are critical targets for the development of behavioral disruptors, such as repellents and attractants, aimed at managing infestations (Romero et al., 2017, Annual Review of Entomology). While bed bugs are not primary vectors for infectious diseases, their bites cause significant morbidity, including pruritic lesions, secondary infections, and psychological trauma (Doggett et al., 2012, Clinical Microbiology Reviews). Targeting the odorant receptor coreceptor (ORco) or specific host-seeking receptors like those sensitive to CO2 or human skin volatiles offers a pathway for novel, non-toxic pest control strategies (Liu et al., 2017, Scientific Reports).

Other names

Cimex lectularius chemoreceptorBed bug odorant receptorBed bug gustatory receptorBed bug ionotropic receptorOdorant receptor coreceptor (ORco)

Antagonism of odorant receptors to mask host-derived chemical cues or agonism to cause sensory overload and avoidance.