8e9y

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CryoEM structure of miniGq-coupled hM3Dq in complex with CNOCryoEM structure of miniGq-coupled hM3Dq in complex with CNO

Structural highlights

8e9y is a 5 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:Electron Microscopy, Resolution 2.79Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Publication Abstract from PubMed

Designer receptors exclusively activated by designer drugs (DREADDs) represent a powerful chemogenetic technology for the remote control of neuronal activity and cellular signalling(1-4). The muscarinic receptor-based DREADDs are the most widely used chemogenetic tools in neuroscience research. The G(q)-coupled DREADD (hM3Dq) is used to enhance neuronal activity, whereas the G(i/o)-coupled DREADD (hM4Di) is utilized to inhibit neuronal activity(5). Here we report four DREADD-related cryogenic electron microscopy high-resolution structures: a hM3Dq-miniG(q) complex and a hM4Di-miniG(o) complex bound to deschloroclozapine; a hM3Dq-miniG(q) complex bound to clozapine-N-oxide; and a hM3R-miniG(q) complex bound to iperoxo. Complemented with mutagenesis, functional and computational simulation data, our structures reveal key details of the recognition of DREADD chemogenetic actuators and the molecular basis for activation. These findings should accelerate the structure-guided discovery of next-generation chemogenetic tools.

Molecular basis for selective activation of DREADD-based chemogenetics.,Zhang S, Gumpper RH, Huang XP, Liu Y, Krumm BE, Cao C, Fay JF, Roth BL Nature. 2022 Dec;612(7939):354-362. doi: 10.1038/s41586-022-05489-0. Epub 2022 , Nov 30. PMID:36450989[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Zhang S, Gumpper RH, Huang XP, Liu Y, Krumm BE, Cao C, Fay JF, Roth BL. Molecular basis for selective activation of DREADD-based chemogenetics. Nature. 2022 Dec;612(7939):354-362. PMID:36450989 doi:10.1038/s41586-022-05489-0

8e9y, resolution 2.79Å

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OCA