9KWF | pdb_00009kwf

Cryo-EM structure of Leptospirillum ferriphilum helicase Dda

• PDB DOI: https://doi.org/10.2210/pdb9KWF/pdb
• EM Map EMD-62609: EMDB EMDataResource

• Classification: DNA BINDING PROTEIN
• Organism(s): Leptospirillum ferriphilum ML-04
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-12-05 Released: 2025-12-03 
• Deposition Author(s): Liu, R.H., Liu, J.D., Zhang, K., He, S.J., Feng, Q.S., Dai, J., Guo, X.R., Fu, Y., Li, Y.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.52 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Cryo-EM structure of Leptospirillum ferriphilum helicase Dda

Liu, R.H., Liu, J.D., Zhang, K., He, S.J., Feng, Q.S., Dai, J., Guo, X.R., Fu, Y., Li, Y.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 95.19 kDa 
• Atom Count: 4,968 
• Modeled Residue Count: 648 
• Deposited Residue Count: 868 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative deoxyribonuclease	A [auth B], B [auth A]	434	Leptospirillum ferriphilum ML-04	Mutation(s): 0  Gene Names: LFML04_0699
UniProt
Find proteins for J9Z8Z5 (Leptospirillum ferriphilum (strain ML-04)) Explore J9Z8Z5  Go to UniProtKB:  J9Z8Z5

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.52 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-12-03 
Deposition Author(s): Liu, R.H., Liu, J.D., Zhang, K., He, S.J., Feng, Q.S., Dai, J., Guo, X.R., Fu, Y., Li, Y.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2025-12-03
  Type: Initial release