7SRS

5-HT2B receptor bound to LSD in complex with beta-arrestin1 obtained by cryo-electron microscopy (cryoEM)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Signaling snapshots of a serotonin receptor activated by the prototypical psychedelic LSD.

Cao, C.Barros-Alvarez, X.Zhang, S.Kim, K.Damgen, M.A.Panova, O.Suomivuori, C.M.Fay, J.F.Zhong, X.Krumm, B.E.Gumpper, R.H.Seven, A.B.Robertson, M.J.Krogan, N.J.Huttenhain, R.Nichols, D.E.Dror, R.O.Skiniotis, G.Roth, B.L.

(2022) Neuron 110: 3154

  • DOI: https://doi.org/10.1016/j.neuron.2022.08.006
  • Primary Citation of Related Structures:  
    7SRQ, 7SRR, 7SRS

  • PubMed Abstract: 

    Serotonin (5-hydroxytryptamine [5-HT]) 5-HT2-family receptors represent essential targets for lysergic acid diethylamide (LSD) and all other psychedelic drugs. Although the primary psychedelic drug effects are mediated by the 5-HT 2A serotonin receptor (HTR2A), the 5-HT 2B serotonin receptor (HTR2B) has been used as a model receptor to study the activation mechanisms of psychedelic drugs due to its high expression and similarity to HTR2A. In this study, we determined the cryo-EM structures of LSD-bound HTR2B in the transducer-free, Gq-protein-coupled, and β-arrestin-1-coupled states. These structures provide distinct signaling snapshots of LSD's action, ranging from the transducer-free, partially active state to the transducer-coupled, fully active states. Insights from this study will both provide comprehensive molecular insights into the signaling mechanisms of the prototypical psychedelic LSD and accelerate the discovery of novel psychedelic drugs.


  • Organizational Affiliation

    Department of Pharmacology, University of North Carolina at Chapel Hill, School of Medicine, Chapel Hill, NC 27599-7365, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Anti-5HT2BR Fab light chainA [auth P]209Mus musculusMutation(s): 0 
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Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Anti-5HT2BR Fab heavy chainB [auth Q]218Mus musculusMutation(s): 0 
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Sequence Annotations
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
5-hydroxytryptamine receptor 2BC [auth R]333Homo sapiensMutation(s): 0 
Gene Names: HTR2B
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P41595 (Homo sapiens)
Explore P41595 
Go to UniProtKB:  P41595
PHAROS:  P41595
GTEx:  ENSG00000135914 
Entity Groups  
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UniProt GroupP41595
Glycosylation
Glycosylation Sites: 1Go to GlyGen: P41595-1
Sequence Annotations
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Isoform 1B of Beta-arrestin-1D [auth C]367Homo sapiensMutation(s): 1 
Gene Names: ARRB1ARR1
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P49407 (Homo sapiens)
Explore P49407 
Go to UniProtKB:  P49407
PHAROS:  P49407
GTEx:  ENSG00000137486 
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UniProt GroupP49407
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Fab30 heavy chainE [auth H]119Mus musculusMutation(s): 0 
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Fab30 light chainF [auth L]106Mus musculusMutation(s): 0 
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
7LD (Subject of Investigation/LOI)
Query on 7LD

Download Ideal Coordinates CCD File 
H [auth R](8alpha)-N,N-diethyl-6-methyl-9,10-didehydroergoline-8-carboxamide
C20 H25 N3 O
VAYOSLLFUXYJDT-RDTXWAMCSA-N
NAG
Query on NAG

Download Ideal Coordinates CCD File 
G [auth R]2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
SEP
Query on SEP
C [auth R]L-PEPTIDE LINKINGC3 H8 N O6 PSER
Binding Affinity Annotations 
IDSourceBinding Affinity
7LD BindingDB:  7SRS Ki: 11 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONcryoSPARC3.2

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Other government--

Revision History  (Full details and data files)

  • Version 1.0: 2022-09-21
    Type: Initial release
  • Version 1.1: 2022-10-05
    Changes: Structure summary
  • Version 1.2: 2022-10-19
    Changes: Database references
  • Version 1.3: 2024-10-16
    Changes: Data collection, Structure summary