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Title | Structure of nanobody-bound DRD1_LSD complex | |||||||||
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![]() | GPCR / DRD1 / LSD / MEMBRANE PROTEIN | |||||||||
Function / homology | ![]() dopamine neurotransmitter receptor activity, coupled via Gs / dopamine neurotransmitter receptor activity / cerebral cortex GABAergic interneuron migration / operant conditioning / Dopamine receptors / regulation of dopamine uptake involved in synaptic transmission / dopamine binding / phospholipase C-activating dopamine receptor signaling pathway / heterotrimeric G-protein binding / modification of postsynaptic structure ...dopamine neurotransmitter receptor activity, coupled via Gs / dopamine neurotransmitter receptor activity / cerebral cortex GABAergic interneuron migration / operant conditioning / Dopamine receptors / regulation of dopamine uptake involved in synaptic transmission / dopamine binding / phospholipase C-activating dopamine receptor signaling pathway / heterotrimeric G-protein binding / modification of postsynaptic structure / peristalsis / regulation of dopamine metabolic process / G protein-coupled receptor complex / grooming behavior / positive regulation of neuron migration / habituation / sensitization / dopamine transport / astrocyte development / dentate gyrus development / conditioned taste aversion / striatum development / positive regulation of potassium ion transport / maternal behavior / arrestin family protein binding / non-motile cilium / long-term synaptic depression / mating behavior / IgG binding / adult walking behavior / G protein-coupled dopamine receptor signaling pathway / ciliary membrane / temperature homeostasis / detection of maltose stimulus / D-glucose import / transmission of nerve impulse / maltose transport complex / dopamine metabolic process / behavioral response to cocaine / carbohydrate transport / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / carbohydrate transmembrane transporter activity / maltose binding / G-protein alpha-subunit binding / maltose transport / maltodextrin transmembrane transport / behavioral fear response / prepulse inhibition / neuronal action potential / synapse assembly / adenylate cyclase-activating adrenergic receptor signaling pathway / ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing / activation of adenylate cyclase activity / presynaptic modulation of chemical synaptic transmission / response to amphetamine / positive regulation of synaptic transmission, glutamatergic / ATP-binding cassette (ABC) transporter complex / positive regulation of release of sequestered calcium ion into cytosol / GABA-ergic synapse / synaptic transmission, glutamatergic / cell chemotaxis / G protein-coupled receptor activity / visual learning / memory / long-term synaptic potentiation / adenylate cyclase-activating G protein-coupled receptor signaling pathway / protein import into nucleus / cellular response to catecholamine stimulus / vasodilation / adenylate cyclase-activating dopamine receptor signaling pathway / presynaptic membrane / outer membrane-bounded periplasmic space / G alpha (s) signalling events / dendritic spine / postsynaptic membrane / periplasmic space / positive regulation of MAPK cascade / cilium / positive regulation of cell migration / response to xenobiotic stimulus / DNA damage response / endoplasmic reticulum membrane / glutamatergic synapse / extracellular region / nucleus / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.57 Å | |||||||||
![]() | Zhuang Y / Xu Y / Fan L / Wang S / Xu HE | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis of psychedelic LSD recognition at dopamine D receptor. Authors: Luyu Fan / Youwen Zhuang / Hongyu Wu / Huiqiong Li / Youwei Xu / Yue Wang / Licong He / Shishan Wang / Zhangcheng Chen / Jianjun Cheng / H Eric Xu / Sheng Wang / ![]() Abstract: Understanding the kinetics of LSD in receptors and subsequent induced signaling is crucial for comprehending both the psychoactive and therapeutic effects of LSD. Despite extensive research on LSD's ...Understanding the kinetics of LSD in receptors and subsequent induced signaling is crucial for comprehending both the psychoactive and therapeutic effects of LSD. Despite extensive research on LSD's interactions with serotonin 2A and 2B receptors, its behavior on other targets, including dopamine receptors, has remained elusive. Here, we present cryo-EM structures of LSD/PF6142-bound dopamine D receptor (DRD1)-legobody complexes, accompanied by a β-arrestin-mimicking nanobody, NBA3, shedding light on the determinants of G protein coupling versus β-arrestin coupling. Structural analysis unveils a distinctive binding mode of LSD in DRD1, particularly with the ergoline moiety oriented toward TM4. Kinetic investigations uncover an exceptionally rapid dissociation rate of LSD in DRD1, attributed to the flexibility of extracellular loop 2 (ECL2). Moreover, G protein can stabilize ECL2 conformation, leading to a significant slowdown in ligand's dissociation rate. These findings establish a solid foundation for further exploration of G protein-coupled receptor (GPCR) dynamics and their relevance to signal transduction. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
Map data | ![]() | 59.8 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21.4 KB 21.4 KB | Display Display | ![]() |
Images | ![]() | 34 KB | ||
Filedesc metadata | ![]() | 6.9 KB | ||
Others | ![]() ![]() | 49.6 MB 49.6 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8jxrMC ![]() 8jxsC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.824 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
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Sample components
+Entire : nanobody-bound DRD1_LSD complex
+Supramolecule #1: nanobody-bound DRD1_LSD complex
+Supramolecule #2: DRD1
+Supramolecule #3: PrAC-PrAD-PrG
+Supramolecule #4: Fab 8D3
+Macromolecule #1: D(1A) dopamine receptor
+Macromolecule #2: NBA3
+Macromolecule #3: Maltose/maltodextrin-binding periplasmic protein,Immunoglobulin G...
+Macromolecule #4: Fab 8D3 heavy chain
+Macromolecule #5: Fab 8D3 light chain
+Macromolecule #7: (8alpha)-N,N-diethyl-6-methyl-9,10-didehydroergoline-8-carboxamide
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 5.0 µm / Nominal defocus min: 1.2 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.57 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 175144 |
Initial angle assignment | Type: ANGULAR RECONSTITUTION |
Final angle assignment | Type: ANGULAR RECONSTITUTION |