9PQD | pdb_00009pqd

Locally-refined structure of alpha2a adrenergic receptor in complex with Go heterotrimer, scFv16, and compound Z7149


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.29 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Large Library Docking for Polypharmacology.

Wu, Y.Vigneron, S.Braz, J.Srinivasan, K.Fink, E.A.Huang, X.P.Xu, X.Huebner, H.Kim, J.Y.Wang, J.Pfeiffer, T.Sakamoto, K.Radchenko, D.S.Rodriguiz, R.M.Moroz, Y.S.Irwin, J.J.Gmeiner, P.Billesboelle, C.Roth, B.L.Basbaum, A.I.Manglik, A.Wetsel, W.C.Shoichet, B.K.

(2026) J Med Chem 

  • DOI: https://doi.org/10.1021/acs.jmedchem.5c03810
  • Primary Citation of Related Structures:  
    9PNS, 9PPQ, 9PQD

  • PubMed Abstract: 

    Polypharmacological molecules are attractive for complex illnesses. Here, we explored large library docking for joint activity against target pairs. Retrospectively, as libraries grew, so too did the number of likely dual-activity molecules. In prospective docking of a 900-million molecule library against three target pairs (α 2A /SERT, MOR/SERT, and α 2A /MOR), we sought analgesic compounds. Both the α 2A /SERT and SERT/MOR campaigns led to dual binders with low μM to high nM activities with high hit rates; tetrahydropyridines from the α 2A /SERT campaign were also active against 5-HT 2A . However, even though cryo-EM structures confirmed the docking-predicted poses, optimization struggled to improve potency. Still, in mouse behavioral assays, the most potent α 2A /SERT compound (' z7149 ) was effective against pain without inducing conditioned place preference, and the molecule had potent antidepression and anxiolytic drug-like behavior, consistent with its SERT/5-HT 2A activities. This study reveals both advantages and challenges of docking for polypharmacology.


  • Organizational Affiliation
    • Department of Pharmaceutical Chemistry, University of California, San Francisco, 1700 fourth St., Byers Hall Suite 508D, San Francisco, California 94158, United States.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Alpha-2A adrenergic receptorA [auth R]491Homo sapiensMutation(s): 0 
Gene Names: ADRA2AADRA2RADRAR
UniProt & NIH Common Fund Data Resources
Find proteins for P08913 (Homo sapiens)
Explore P08913 
Go to UniProtKB:  P08913
PHAROS:  P08913
GTEx:  ENSG00000150594 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08913
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
A1CIZ (Subject of Investigation/LOI)
Query on A1CIZ

Download Ideal Coordinates CCD File 
B [auth R](6M)-1-methyl-6-(1,2,5,6-tetrahydropyridin-3-yl)-1H-indole
C14 H16 N2
HGHJTLFFTQPAOS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.29 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONcryoSPARC
MODEL REFINEMENTPHENIX1.21.2_5419

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Defense Advanced Research Projects Agency (DARPA)United StatesHR0011-19-2-0020
Department of Health & Human Services (HHS)United States1AY1AX000035

Revision History  (Full details and data files)

  • Version 1.0: 2025-08-20
    Type: Initial release
  • Version 1.1: 2026-03-04
    Changes: Data collection, Database references