8WX5 | pdb_00008wx5

Cryo-EM structure of human SLC15A4 in complex with TASL (inward-facing open)

• PDB DOI: https://doi.org/10.2210/pdb8WX5/pdb
• EM Map EMD-37901: EMDB EMDataResource

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


• Deposited: 2023-10-27 Released: 2023-12-13 
• Deposition Author(s): Ohto, U., Zhang, Z., Fujimura, A., Shimizu, T.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.91 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

The structures of the peptide transporters SLC15A3 and SLC15A4 reveal the recognition mechanisms for substrate and TASL

Zhang, Z., Kasai, S., Sakaniwa, K., Fujimura, A., Ohto, U., Shimizu, T.

(2025) Structure 33: 330

• DOI: https://doi.org/10.1016/j.str.2024.11.019

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 66.63 kDa 
• Atom Count: 3,857 
• Modeled Residue Count: 504 
• Deposited Residue Count: 615 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Solute carrier family 15 member 4	A	600	Homo sapiens	Mutation(s): 0  Gene Names: SLC15A4 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q8N697 (Homo sapiens) Explore Q8N697  Go to UniProtKB:  Q8N697
PHAROS:  Q8N697 GTEx:  ENSG00000139370

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
TASL (TASL-SLC15A4 fusion protein)	B	15	Homo sapiens	Mutation(s): 0  Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q9HAI6 (Homo sapiens) Explore Q9HAI6  Go to UniProtKB:  Q9HAI6
PHAROS:  Q9HAI6 GTEx:  ENSG00000120280

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.91 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-12-13 
Deposition Author(s): Ohto, U., Zhang, Z., Fujimura, A., Shimizu, T.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-12-13
  Type: Initial release
  
• Version 1.1: 2024-10-30
  Changes: Data collection, Structure summary
• Version 1.2: 2025-06-18
  Changes: Data collection, Database references