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PeerJ. 2013 Sep 10;1:e149. doi: 10.7717/peerj.149. eCollection 2013.

Do N-arachidonyl-glycine (NA-glycine) and 2-arachidonoyl glycerol (2-AG) share mode of action and the binding site on the β2 subunit of GABAA receptors?

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  • 1Institute of Biochemistry and Molecular Medicine, University of Bern , Bern , Switzerland.


NA-glycine is an endogenous lipid molecule with analgesic properties, which is structurally similar to the endocannabinoids 2-AG and anandamide but does not interact with cannabinoid receptors. NA-glycine has been suggested to act at the G-protein coupled receptors GPR18 and GPR92. Recently, we have described that NA-glycine can also modulate recombinant α1β2γ2 GABAA receptors. Here we characterize in more detail this modulation and investigate the relationship of its binding site with that of the endocannabinoid 2-AG.


2-AG; Endocannabinoids; GABA; GABAA receptors; NA-glycine

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