9N62 | pdb_00009n62

Transporter associated with antigen processing (TAP) EQ mutant bound to ATP in the inward-facing state

• PDB DOI: https://doi.org/10.2210/pdb9N62/pdb
• EM Map EMD-49046: EMDB EMDataResource

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


• Deposited: 2025-02-04 Released: 2025-09-03 
• Deposition Author(s): Lee, J., Chen, J.
• Funding Organization(s): Howard Hughes Medical Institute (HHMI)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.40 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Transporter associated with antigen processing (TAP) EQ mutant bound to ATP in the inward-facing state

Lee, J., Chen, J.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 157.79 kDa 
• Atom Count: 8,776 
• Modeled Residue Count: 1,121 
• Deposited Residue Count: 1,434 
• Unique protein chains: 2

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

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP (Subject of Investigation/LOI)	C [auth A], D [auth B]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.40 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.20.1_4487
RECONSTRUCTION	cryoSPARC	4

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-09-03 
Deposition Author(s): Lee, J., Chen, J.

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

Revision History  

• Version 1.0: 2025-09-03
  Type: Initial release