RRC ID 64483
Author Ihara M, Furutani S, Shigetou S, Shimada S, Niki K, Komori Y, Kamiya M, Koizumi W, Magara L, Hikida M, Noguchi A, Okuhara D, Yoshinari Y, Kondo S, Tanimoto H, Niwa R, Sattelle DB, Matsuda K.
Title Cofactor-enabled functional expression of fruit fly, honeybee, and bumblebee nicotinic receptors reveals picomolar neonicotinoid actions.
Journal Proc Natl Acad Sci U S A
Abstract The difficulty of achieving robust functional expression of insect nicotinic acetylcholine receptors (nAChRs) has hampered our understanding of these important molecular targets of globally deployed neonicotinoid insecticides at a time when concerns have grown regarding the toxicity of this chemotype to insect pollinators. We show that thioredoxin-related transmembrane protein 3 (TMX3) is essential to enable robust expression in Xenopus laevis oocytes of honeybee (Apis mellifera) and bumblebee (Bombus terrestris) as well as fruit fly (Drosophila melanogaster) nAChR heteromers targeted by neonicotinoids and not hitherto robustly expressed. This has enabled the characterization of picomolar target site actions of neonicotinoids, findings important in understanding their toxicity.
Volume 117(28)
Pages 16283-16291
Published 2020-7-14
DOI 10.1073/pnas.2003667117
PII 2003667117
PMID 32611810
PMC PMC7368294
MeSH Acetylcholine / pharmacology Animals Bees / metabolism Dose-Response Relationship, Drug Drosophila melanogaster / metabolism Insect Proteins / agonists Insect Proteins / genetics Insect Proteins / metabolism* Insecticides / pharmacology* Neonicotinoids / pharmacology* Nicotinic Agonists / pharmacology* Oocytes / metabolism Protein Subunits / antagonists & inhibitors Protein Subunits / genetics Protein Subunits / metabolism Receptors, Nicotinic / genetics Receptors, Nicotinic / metabolism* Thioredoxins / genetics Thioredoxins / metabolism Xenopus laevis
IF 9.412
Resource
Drosophila DGRC#108068