9YR4 | pdb_00009yr4

Cryo-EM structure of human Tom70 in complex with Hsp90 C-terminal EEVD peptide

• PDB DOI: https://doi.org/10.2210/pdb9YR4/pdb
• EM Map EMD-73359: EMDB EMDataResource

• Classification: TRANSLOCASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2025-10-16 Released: 2026-06-24 
• Deposition Author(s): Sherer, N., Yadav, G.P., Cho, J.H.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), Welch Foundation

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.64 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: in silico

Literature

Cryo-EM structure of human Tom70 in complex with Hsp90 C-terminal EEVD peptide

Sherer, N., Yadav, G.P., Cho, J.H.

To be published.

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: 68.68 kDa 
• Atom Count: 3,819 
• Modeled Residue Count: 479 
• Deposited Residue Count: 617 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Mitochondrial import receptor subunit TOM70	A	607	Homo sapiens	Mutation(s): 0  Gene Names: TOMM70, KIAA0719, TOM70, TOMM70A
UniProt & NIH Common Fund Data Resources
Find proteins for O94826 (Homo sapiens) Explore O94826  Go to UniProtKB:  O94826
PHAROS:  O94826 GTEx:  ENSG00000154174

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Heat shock protein HSP 90-alpha	B	10	Homo sapiens	Mutation(s): 0  EC: 3.6.4.10
UniProt & NIH Common Fund Data Resources
Find proteins for P07900 (Homo sapiens) Explore P07900  Go to UniProtKB:  P07900
PHAROS:  P07900 GTEx:  ENSG00000080824

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.64 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	3.3.1
RECONSTRUCTION	DeepEMhancer
MODEL REFINEMENT	PHENIX

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-06-24 
Deposition Author(s): Sherer, N., Yadav, G.P., Cho, J.H.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R35 GM152007
Welch Foundation	United States	A-2028-20230405

Revision History  

• Version 1.0: 2026-06-24
  Type: Initial release