9WQA | pdb_00009wqa

5-HT2B receptor bound to IHCH-1906 in complex with an antibody obtained by cryo-electron microscopy (cryoEM)

PDB DOI: https://doi.org/10.2210/pdb9WQA/pdb
EM Map EMD-66164: EMDB EMDataResource

Classification: SIGNALING PROTEIN/IMMUNE SYSTEM
Organism(s): Homo sapiens
Expression System: Spodoptera frugiperda
Mutation(s): No

Deposited: 2025-09-10 Released: 2026-09-16
Deposition Author(s): Li, H., Tang, L., Zhang, J., Meng, B., Cao, D., Yu, J., Liu, Z., Wang, S., Cheng, J.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.28 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

Validation slider image for 9WQA

This is version 1.0 of the entry. See complete history.

Literature

Structure-based design of subtype-selective psychedelic analogues

Li, H., Tang, J., Zhang, J., Meng, B., Cao, D., Yu, J., Liu, Z., Wang, S., Cheng, J.

To be published.

Macromolecule Content

Total Structure Weight: 85.76 kDa
Atom Count: 4,782
Modeled Residue Count: 687
Deposited Residue Count: 778
Unique protein chains: 3

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
5-hydroxytryptamine receptor 2B	A	318	Homo sapiens	Mutation(s): 0 Gene Names: HTR2B
UniProt & NIH Common Fund Data Resources
Find proteins for P41595 (Homo sapiens) Explore P41595 Go to UniProtKB: P41595
PHAROS: P41595 GTEx: ENSG00000135914
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P41595
Sequence Annotations Expand
Reference Sequence

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Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Anti-5-HT2B Fab light chain	B	213	Homo sapiens	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Anti-5-HT2B Fab heavy chain	C	247	Homo sapiens	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
A1EYE( Subject of Investigation/LOI) Query on A1EYE Download:Ideal Coordinates CCD File SDF format, chain D [auth A] MOL2 format, chain D [auth A] mmCIF format, chain D [auth A]	D [auth A]	1-(1,2,3,6-tetrahydropyridin-4-yl)-6,7,8,9-tetrahydro-5~{H}-benzo[7]annulen-4-ol C₁₆ H₂₁ N O ZGCNFQWWIAVUGL-UHFFFAOYSA-N		Interactions Focus chain D [auth A] Interactions & Density Focus chain D [auth A]

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.28 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX
RECONSTRUCTION	PHENIX

Structure Validation

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View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-09-16

Deposition Author(s):

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History (Full details and data files)

Version 1.0: 2026-09-16
Type: Initial release

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.