8VX1 | pdb_00008vx1

Cryo-EM Structure of DHX36 bound to the cMyc DNA G-quadruplex, Class 2

• PDB DOI: https://doi.org/10.2210/pdb8VX1/pdb
• EM Map EMD-43606: EMDB EMDataResource
• NAKB: 8VX1

• Classification: MOTOR PROTEIN
• Organism(s): Bos taurus, synthetic construct
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2024-02-02 Released: 2025-08-20 
• Deposition Author(s): Banco, M.T., Ferre-D'Amare, A.R.
• Funding Organization(s): National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)

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Experimental Data Snapshot

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

Starting Models: experimental

Literature

Inter-domain synergy enables both DNA and RNA G-quadruplex unwinding by the DEAH-box helicase DHX36

Banco, M.T., Paul, T., Jiang, J., Myong, S., Ferre-D'Amare, A.R.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 129.89 kDa 
• Atom Count: 7,374 
• Modeled Residue Count: 904 
• Deposited Residue Count: 1,030 
• Unique protein chains: 1
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ATP-dependent DNA/RNA helicase DHX36	A	972	Bos taurus	Mutation(s): 3  Gene Names: DHX36 EC: 3.6.4.12 (PDB Primary Data), 3.6.4.13 (PDB Primary Data)
UniProt
Find proteins for Q05B79 (Bos taurus) Explore Q05B79  Go to UniProtKB:  Q05B79

Entity ID: 2
Molecule	Chains	Length	Organism	Image
DNA (27-MER)	B [auth C], C [auth B]	29	synthetic construct

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
RECONSTRUCTION	cryoSPARC
MODEL REFINEMENT	PHENIX

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-08-20 
Deposition Author(s): Banco, M.T., Ferre-D'Amare, A.R.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)	United States	--

Revision History  

• Version 1.0: 2025-08-20
  Type: Initial release