Varroa destructor octopamine receptor alpha-2 (VdOctα2R)

Varroa destructor octopamine receptor alpha-2 (VdOctα2R) is a G protein-coupled receptor (GPCR) that plays a vital role in the neurophysiology of the honey bee ectoparasitic mite, Varroa destructor (Blenau et al., 2013). As an alpha-adrenergic-like receptor, it is primarily activated by octopamine, which is the invertebrate functional analog of norepinephrine (Farooqui, 2012). This receptor is involved in modulating essential biological functions such as motor activity, sensory processing, and reproductive behaviors within the mite (Wu et al., 2021). Given its central role in the mite's nervous system and its divergence from vertebrate receptors, VdOctα2R is a significant target for acaricides designed to control Varroa infestations in apiculture (Ozoe, 2013). Chemical agents that interact with this receptor, including various formamidines and experimental biogenic amine analogs, can cause lethal overstimulation or neurological interference (Gross et al., 2017). However, the development of resistance to traditional acaricides and the need for honey bee safety necessitate the discovery of highly selective ligands that target VdOctα2R without affecting the host's own octopaminergic system (Blenau & Thamm, 2011).

Other names

VdOctalpha2ROctopamine alpha-2 receptorAlpha-adrenergic-like octopamine receptorVarroa destructor octopamine receptor alpha-2-like

Agonism or antagonism of the receptor disrupts biogenic amine signaling in the mite's central nervous system, leading to physiological dysfunction, paralysis, or death.