9Z26 | pdb_00009z26

Cryo-EM structure of human TRPM4 channel in complex with calcium and NBA at 37 degrees Celsius (monomeric TMD-focused map with best-resolved NBA density)

PDB DOI: https://doi.org/10.2210/pdb9Z26/pdb
EM Map EMD-73764: EMDB EMDataResource

Classification: MEMBRANE PROTEIN
Organism(s): Homo sapiens
Expression System: Homo sapiens
Mutation(s): No

Deposited: 2025-11-04 Released: 2026-06-10
Deposition Author(s): Jinhong, H., Wei, L., Juan, D.
Funding Organization(s): National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI), National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS), Other private, American Heart Association

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 2.90 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

Validation slider image for 9Z26

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

Literature

Temperature and intrinsic Ca2+ reshape TRPM4 pharmacology

Jinhong, H., Sofia, I., Sung Jin, P., Junuk, L., Jennifer, C., Garrett, O., Jiangnan, S., Juan, D., Wei, L.

To be published.

Macromolecule Content

Total Structure Weight: 134.85 kDa
Atom Count: 2,945
Modeled Residue Count: 364
Deposited Residue Count: 1,214
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transient receptor potential cation channel subfamily M member 4	A	1,214	Homo sapiens	Mutation(s): 0 Gene Names: TRPM4, LTRPC4
UniProt & NIH Common Fund Data Resources
Find proteins for Q8TD43 (Homo sapiens) Explore Q8TD43 Go to UniProtKB: Q8TD43
PHAROS: Q8TD43 GTEx: ENSG00000130529
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q8TD43
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
A1H0C (Subject of Investigation/LOI) Query on A1H0C Download:Ideal Coordinates CCD File SDF format, chain C [auth A] MOL2 format, chain C [auth A] mmCIF format, chain C [auth A]	C [auth A]	4-chloranyl-2-(2-naphthalen-1-yloxyethanoylamino)benzoic acid C₁₉ H₁₄ Cl N O₄ OKFVCWAYHJMQFA-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Interactions & Density Focus chain C [auth A]
CA Query on CA Download:Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 2.90 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
RECONSTRUCTION	RELION	5.0

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-06-10

Deposition Author(s):

Funding Organization	Location	Grant Number
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)	United States	R01HL153219
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)	United States	R01NS129804
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)	United States	R01NS111031
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)	United States	R01NS112363
Other private	United States	McKnight Scholar Award
Other private	United States	Klingenstein-Simon Scholar Award
Other private	United States	Sloan Research Fellowship
Other private	United States	Pew Scholar in the Biomedical Sciences
American Heart Association	United States	24POST1196982

Revision History (Full details and data files)

Version 1.0: 2026-06-10
Type: Initial release

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.