9OCJ | pdb_00009ocj

Transporter associated with antigen processing (TAP) bound to the viral protein CPXV012 in the outward-facing open state

• PDB DOI: https://doi.org/10.2210/pdb9OCJ/pdb
• EM Map EMD-70317: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens, Cowpox virus
• Expression System: Homo sapiens
• Mutation(s): Yes 
• Membrane Protein: Yes  MemProtMD


• Deposited: 2025-04-24 Released: 2025-09-10 
• Deposition Author(s): Lee, J., Manon, V., Chen, J.
• Funding Organization(s): Howard Hughes Medical Institute (HHMI), National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.00 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Transporter associated with antigen processing (TAP) bound to the viral protein CPXV012 in the outward-facing open state

Lee, J., Manon, V., 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 and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 187.68 kDa 
• Atom Count: 9,006 
• Modeled Residue Count: 1,143 
• Deposited Residue Count: 1,716 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Antigen peptide transporter 2	A [auth B]	686	Homo sapiens	Mutation(s): 1  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: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
TAP transporter inhibitor CPXV012	B [auth D]	123	Cowpox virus	Mutation(s): 0  Gene Names: CPXV012 CDS Membrane Entity: Yes
UniProt
Find proteins for G0XV07 (Cowpox virus) Explore G0XV07  Go to UniProtKB:  G0XV07

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Antigen peptide transporter 1	C [auth A]	907	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

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP (Subject of Investigation/LOI)	D [auth B], F [auth A]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
MG (Subject of Investigation/LOI)	E [auth B], G [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.00 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-09-10 
Deposition Author(s): Lee, J., Manon, V., Chen, J.

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Funding Organization	Location	Grant Number
Howard Hughes Medical Institute (HHMI)	United States	--
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	T32GM007739

Revision History  

• Version 1.0: 2025-09-10
  Type: Initial release