8T4F

Transporter associated with antigen processing (TAP) bound to the 9-mer peptide RRYQKSTEL

• PDB DOI: https://doi.org/10.2210/pdb8T4F/pdb
• EM Map EMD-41029: EMDB EMDataResource

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


• Deposited: 2023-06-09 Released: 2024-06-19 
• Deposition Author(s): Lee, J., Oldham, M.L., Chen, J.
• Funding Organization(s): Howard Hughes Medical Institute (HHMI)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.50 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Transporter associated with antigen processing (TAP) bound to the 9-mer peptide RRYQKSTEL

Lee, J., Chen, J.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 157.95 kDa 
• Atom Count: 7,793 
• Modelled Residue Count: 1,097 
• Deposited Residue Count: 1,443 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Antigen peptide transporter 1	A	748	Homo sapiens	Mutation(s): 0  Gene Names: TAP1, ABCB2, PSF1, RING4, Y3 EC: 7.4.2.14 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q03518 (Homo sapiens) Explore Q03518  Go to UniProtKB:  Q03518
PHAROS:  Q03518 GTEx:  ENSG00000168394

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Antigen peptide transporter 2	B	686	Homo sapiens	Mutation(s): 0  Gene Names: TAP2, ABCB3, PSF2, RING11, Y1 EC: 7.4.2.14 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q03519 (Homo sapiens) Explore Q03519  Go to UniProtKB:  Q03519
PHAROS:  Q03519 GTEx:  ENSG00000204267

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone H3.3C peptide	C	9	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for Q6NXT2 (Homo sapiens) Explore Q6NXT2  Go to UniProtKB:  Q6NXT2
PHAROS:  Q6NXT2 GTEx:  ENSG00000188375

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.50 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	4

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-06-19 
Deposition Author(s): Lee, J., Oldham, M.L., Chen, J.

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Funding Organization	Location	Grant Number
Howard Hughes Medical Institute (HHMI)	United States	--

Revision History  

• Version 1.0: 2024-06-19
  Type: Initial release