9J04 | pdb_00009j04

Cryo-EM structure of hOAT1 in complex with cidofovir

• PDB DOI: https://doi.org/10.2210/pdb9J04/pdb
• EM Map EMD-61048: EMDB EMDataResource

• Classification: TRANSPORT PROTEIN
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  MemProtMD


• Deposited: 2024-08-02 Released: 2025-08-13 
• Deposition Author(s): Yang, D.X., Luo, Y.B., Wu, X.N.
• Funding Organization(s): National Natural Science Foundation of China (NSFC), Other government

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.15 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural basis for recognition of two different drugs by human OAT1

Wu, X.N., Luo, Y.B., Feng, S.J.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 62.15 kDa 
• Atom Count: 3,782 
• Modeled Residue Count: 488 
• Deposited Residue Count: 563 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Solute carrier family 22 member 6	A	563	Homo sapiens	Mutation(s): 0  Gene Names: SLC22A6, OAT1, PAHT Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q4U2R8 (Homo sapiens) Explore Q4U2R8  Go to UniProtKB:  Q4U2R8
PHAROS:  Q4U2R8 GTEx:  ENSG00000197901

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
L8P (Subject of Investigation/LOI)	B [auth A]	({[(2S)-1-(4-amino-2-oxopyrimidin-1(2H)-yl)-3-hydroxypropan-2-yl]oxy}methyl)phosphonic acid C8 H14 N3 O6 P VWFCHDSQECPREK-LURJTMIESA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.15 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-08-13 
Deposition Author(s): Yang, D.X., Luo, Y.B., Wu, X.N.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32222040
National Natural Science Foundation of China (NSFC)	China	32070049
Other government		ZYYC21006
Other government		2022YFC2303700

Revision History  

• Version 1.0: 2025-08-13
  Type: Initial release