9JDA | pdb_00009jda

taurine transporter

• PDB DOI: https://doi.org/10.2210/pdb9JDA/pdb
• EM Map EMD-61386: EMDB EMDataResource

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


• Deposited: 2024-08-31 Released: 2025-07-16 
• Deposition Author(s): Yu, J., Ge, J.P., Zh, Y.M.
• Funding Organization(s): Chinese Academy of Sciences

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.23 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Dimerization and substrate recognition of human taurine transporter.

Zhang, Y., Chen, J., Chen, N., Xiong, H., Zhu, Z., Yang, D., Ge, J., Yu, J.

(2025) Nat Commun 16: 6163-6163

• PubMed: 40615403 
• DOI: https://doi.org/10.1038/s41467-025-60967-z
• Primary Citation Related Structures: 
  9JD3, 9JD4, 9JD9, 9JDA, 9JDG, 9JDJ, 9JDL


• PubMed Abstract: 
  

  Taurine is a conditionally essential nutrient and one of the most abundant amino acids in humans, with diverse physiological functions. The cellular uptake of taurine is primarily mediated by the taurine transporter (TauT), and its dysfunction leads to retinal regeneration, cardiomyopathy, neurological and aging-associated disorders. Here we determine structures of TauT in two states: the apo inward-facing open state and the occluded state bound with substrate taurine or γ-aminobutyric acid (GABA). In addition to monomer, the structures also reveal a TauT dimer, where two cholesterol molecules act as "molecular glue", and close contacts of two TM5 from each protomer mediate the dimer interface. In combination with functional characterizations, our results elucidate the detailed mechanisms of substrate recognition, specificity and transport by TauT, providing a structural framework for understanding TauT function and exploring potential therapeutic strategies for taurine-deficiency-related disorders.

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Organizational Affiliation: 
• Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China.
University of Chinese Academy of Sciences, Beijing, China.
Center for Quantitative Biology, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.
Shanghai Key Laboratory of Aging Studies, Shanghai, China.
Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, Sichuan, China. [e-mail].
School of Life Science and Technology, ShanghaiTech University, Shanghai, China. [e-mail].
Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China. [e-mail].
Shanghai Key Laboratory of Aging Studies, Shanghai, China. [e-mail].

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 70.63 kDa 
• Atom Count: 4,417 
• Modeled Residue Count: 552 
• Deposited Residue Count: 620 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sodium- and chloride-dependent taurine transporter	A	620	Homo sapiens	Mutation(s): 0  Gene Names: SLC6A6 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P31641 (Homo sapiens) Explore P31641  Go to UniProtKB:  P31641
PHAROS:  P31641 GTEx:  ENSG00000131389

Small Molecules

Ligands 6 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
D12	E [auth A]	DODECANE C12 H26 SNRUBQQJIBEYMU-UHFFFAOYSA-N
D10	D [auth A]	DECANE C10 H22 DIOQZVSQGTUSAI-UHFFFAOYSA-N
TAU (Subject of Investigation/LOI)	B [auth A]	2-AMINOETHANESULFONIC ACID C2 H7 N O3 S XOAAWQZATWQOTB-UHFFFAOYSA-N
OCT	C [auth A], F [auth A]	N-OCTANE C8 H18 TVMXDCGIABBOFY-UHFFFAOYSA-N
CL	G [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
NA	H [auth A], I [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.23 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2025-07-16 
Deposition Author(s): Yu, J., Ge, J.P., Zh, Y.M.

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Funding Organization	Location	Grant Number
Chinese Academy of Sciences	China	--

Revision History  

• Version 1.0: 2025-07-16
  Type: Initial release