1DOU

MONOVALENT CATIONS SEQUESTER WITHIN THE A-TRACT MINOR GROOVE OF [D(CGCGAATTCGCG)]2

• PDB DOI: https://doi.org/10.2210/pdb1DOU/pdb
• NAKB: 1DOU

• Classification: DNA
• Mutation(s): No 


• Deposited: 1999-12-21 Released: 1999-12-27 
• Deposition Author(s): Woods, K.K., McFail-Isom, L., Sines, C.C., Howerton, S.B., Stephens, R.K., Williams, L.D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.82 Å
• R-Value Free: 0.267 
• R-Value Work: 0.209 
• R-Value Observed: 0.209 

Literature

Monovalent Cations Sequester within the A-Tract Minor Groove of [d(CGCGAATTCGCG)]2

Woods, K.K., McFail-Isom, L., Sines, C.C., Howerton, S.B., Stephens, R.K., Williams, L.D.

(2000) J Am Chem Soc 122: 1546-1547

• DOI: https://doi.org/10.1021/ja9919579

Biological Assembly 1  

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 7.35 kDa 
• Atom Count: 634 
• Modelled Residue Count: 24 
• Deposited Residue Count: 24 
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Length	Organism	Image
DNA (5'-D(*CP*GP*CP*GP*AP*AP*TP*TP*CP*GP*CP*G)-3')	A, B	12	N/A

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MG	C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.82 Å
• R-Value Free: 0.267 
• R-Value Work: 0.209 
• R-Value Observed: 0.209 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 25.296	α = 90
b = 40.243	β = 90
c = 65.939	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
SMART	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-12-27 
Deposition Author(s): Woods, K.K., McFail-Isom, L., Sines, C.C., Howerton, S.B., Stephens, R.K., Williams, L.D.

Revision History  

• Version 1.0: 1999-12-27
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-04
  Changes: Refinement description
• Version 1.4: 2024-02-07
  Changes: Data collection, Database references, Derived calculations