9ERX

Structural basis of D9-THC analog activity at the Cannabinoid 1 receptor

This is a non-PDB format compatible entry.

Summary for 9ERX

• Entry DOI: 10.2210/pdb9erx/pdb
• EMDB information: 19929
• Descriptor: Guanine nucleotide-binding protein G(i) subunit alpha-1, Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1, Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2, ... (7 entities in total)
• Functional Keywords: gpcr, cannabinoid receptor 1, thc analog complex, membrane protein
• Biological source: Homo sapiens (human); More
• Total number of polymer chains: 5
• Total formula weight: 178000.87

Authors

Thorsen, T.S.,Kulkarni, Y.,Boggild, A.,Drace, T.,Nissen, P.,Gajhede, M.,Boesen, T.,Kastrup, J.S.,Gloriam, D. (deposition date: 2024-03-25, release date: 2024-06-26, Last modification date: 2025-07-02)

Primary citation

Gloriam, D.,Thorsen, T.,Kulkarni, Y.,Sykes, D.,Boggild, A.,Drace, T.,Hompluem, P.,Iliopoulos-Tsoutsouvas, C.,Nikas, S.,Daver, H.,Makriyannis, A.,Nissen, P.,Gajhede, M.,Veprintsev, D.,Boesen, T.,Kastrup, J.
Structural basis of Delta 9 -THC analog activity at the Cannabinoid 1 receptor.
Res Sq, 2024

PubMed Abstract: Δ-tetrahydrocannabinol (THC) is the principal psychoactive compound derived from the cannabis plant Cannabis sativa and approved for emetic conditions, appetite stimulation and sleep apnea relief. THC's psychoactive actions are mediated primarily by the cannabinoid receptor CB. Here, we determine the cryo-EM structure of HU210, a THC analog and widely used tool compound, bound to CB and its primary transducer, G. We leverage this structure for docking and 1,000 ns molecular dynamics simulations of THC and 10 structural analogs delineating their spatiotemporal interactions at the molecular level. Furthermore, we pharmacologically profile their recruitment of G and β-arrestins and reversibility of binding from an active complex. By combining detailed CB structural information with molecular models and signaling data we uncover the differential spatiotemporal interactions these ligands make to receptors governing potency, efficacy, bias and kinetics. This may help explain the actions of abused substances, advance fundamental receptor activation studies and design better medicines.

PubMed: 38826401
DOI: 10.21203/rs.3.rs-4277209/v1

Experimental method

ELECTRON MICROSCOPY (2.9 Å)