9PNS | pdb_00009pns

Structure of human serotonin transporter bound to small molecule zPZd in lipid nanodisc and NaCl


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report

Validation slider image for 9PNS

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 69: 6210-6229

  • DOI: https://doi.org/10.1021/acs.jmedchem.5c03810
  • Primary Citation 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.

Macromolecule Content 

  • Total Structure Weight: 86.38 kDa 
  • Atom Count: 6,049 
  • Modeled Residue Count: 765 
  • Deposited Residue Count: 772 
  • Unique protein chains: 3

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Sodium-dependent serotonin transporter541Homo sapiensMutation(s): 0 
Gene Names: SLC6A4HTTSERT
UniProt & NIH Common Fund Data Resources
Find proteins for P31645 (Homo sapiens)
Explore P31645 
Go to UniProtKB:  P31645
PHAROS:  P31645
GTEx:  ENSG00000108576 
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP31645
Sequence Annotations
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Reference Sequence
Find similar proteins by:|  3D Structure
Entity ID: 2
MoleculeChains  Sequence LengthOrganismDetailsImage
15B8 Fab heavy chain120Mus musculusMutation(s): 0 
Find similar proteins by:|  3D Structure
Entity ID: 3
MoleculeChains  Sequence LengthOrganismDetailsImage
15B8 Fab light chain111Mus musculusMutation(s): 0 

Small Molecules

Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONcryoSPARC4.5.3

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

Revision History  (Full details and data files)

  • Version 1.0: 2026-03-04
    Type: Initial release
  • Version 1.1: 2026-03-25
    Changes: Data collection, Database references