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September 2022 "The diamondback moth (Plutella xylostella) is one of the most destructive lepidopteran pests of cruciferous vegetables, and insights into regulation of its physiological processes contribute towards the development of new pesticides against it. Thus, we investigated the regulatory functions of its β-adrenergic-like octopamine receptor (PxOctβ3). The open reading frame (ORF) of PxOctβ3 was phylogenetically analyzed, and the levels of expression of the receptor mRNA were determined. This ORF was also cloned and expressed in HEK-293 cells. A series of octopamine receptor agonists and antagonists were tested against PxOctβ3. We showed that the receptor is a member of the Octβ3 protein family, and an analysis using quantitative PCR showed that it was expressed at all developmental stages of P. xylostella. Octopamine activated PxOctβ3, resulting in increased levels of intracellular cAMP. Furthermore, the agonists naphazoline, clonidine, 2-phenethylamine, and amitraz activated the PxOctβ3 receptor, and naphazoline was the most effective. Only metoclopramide and mianserin had significant antagonistic effects on PxOctβ3, whereas yohimbine, phentolamine, and chlorpromazine lacked obvious antagonistic effects. The injection of double-stranded RNA in an RNA interference assay indicated that PxOctβ3 regulates development in P. xylostella. This study demonstrated the pharmacological properties and functions of PxOctβ3 in P. xylostella, thus, providing a theoretical basis for the design of pesticides that target octopamine receptors." Read more at the source #DrGPCR #GPCR #IndustryNews

Sakmar, Debbie L. Hay, Lukas Grätz, and more. Check out some of the latest GPCR discoveries below!

., Yoo, L., Gao, Z. G., Irwin, J. J., Shoichet, B. K., & Jacobson, K. A. (2010). D., Muñoz, L. L., Gregory, K. J., White, P. J., Sexton, P. M., Christopoulos, A., & May, L.

Debbie Hay About this episode Dr. Debbie Hay is presently a professor at the Department of Pharmacology and Toxicology at the University Debbie obtained a Ph.D. in Molecular Pharmacology from Imperial College London in the UK. Join me and learn more about Debbie’s career and what she learned through her experiences as a scientist Debbie Hay on the web LinkedIn Wikipedia University of Otago University of Auckland Google Scholar Pubmed

Debbie Hay, Dr. Randy Hall, tributes to Dr. Marc Caron with over 30 guests including Dr.

Contest Committee Sponsors GPCR Retreat Program < Back to schedule Cannabinoid compounds to augment L-DOPA