8OEZ | pdb_00008oez

Crystal structure of the Z-DNA hexamer d(CGCGCG) with Iron(II) chloride

• PDB DOI: https://doi.org/10.2210/pdb8OEZ/pdb
• NAKB: 8OEZ

• Classification: DNA
• Organism(s): synthetic construct
• Mutation(s): No 


• Deposited: 2023-03-13 Released: 2024-03-27 
• Deposition Author(s): Lambert, M.C., Hall, J.P.
• Funding Organization(s): Engineering and Physical Sciences Research Council

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free: 
  0.224 (Depositor), 0.238 (DCC) 
• R-Value Work: 
  0.194 (Depositor), 0.201 (DCC) 
• R-Value Observed: 
  0.196 (Depositor) 

Starting Model: experimental

Literature

Iron binding preferences: observing metal coordination before oxidative damage.

Lambert, M.C., Hall, J.P.

To be published.

Biological Assembly 1  

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 3.88 kDa 
• Atom Count: 332 
• Modeled Residue Count: 12 
• Deposited Residue Count: 12 
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Length	Organism	Image
DNA (5'-D(*CP*GP*CP*GP*CP*G)-3')	A, B	6	synthetic construct

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FE2 (Subject of Investigation/LOI)	C [auth A], D [auth A], E [auth A], F [auth B]	FE (II) ION Fe CWYNVVGOOAEACU-UHFFFAOYSA-N
CL	G [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free:  0.224 (Depositor), 0.238 (DCC) 
• R-Value Work:  0.194 (Depositor), 0.201 (DCC) 
• R-Value Observed: 0.196 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 18.094	α = 90
b = 30.387	β = 90
c = 42.506	γ = 90

Software Package:

Software Name	Purpose
CrysalisPro	data collection
CrysalisPro	data scaling
CrysalisPro	data reduction
PHENIX	phasing
PHENIX	refinement
Coot	model building

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2024-03-27 
Deposition Author(s): Lambert, M.C., Hall, J.P.

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Funding Organization	Location	Grant Number
Engineering and Physical Sciences Research Council	United Kingdom	--

Revision History  

• Version 1.0: 2024-03-27
  Type: Initial release