1F33

THE STRUCTURAL BASIS FOR DNA PROTECTION BY E. COLI DPS PROTEIN

• PDB DOI: https://doi.org/10.2210/pdb1F33/pdb

• Classification: DNA BINDING PROTEIN
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2000-05-31 Released: 2003-06-17 
• Deposition Author(s): Luo, J., Liu, D., White, M.A., Fox, R.O.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.244 
• R-Value Work: 0.209 
• R-Value Observed: 0.209 

Starting Model: other

Literature

The Structural Basis for DNA Protection by E. coli Dps Protein

Luo, J., Liu, D., White, M.A., Fox, R.O.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 12-mer - A12 

Local Symmetry: Cyclic - C3  (Explore in 3D)
Local Stoichiometry: Homo 3-mer - A3 Local Symmetry: Cyclic - C3  (Explore in 3D)
Local Stoichiometry: Homo 3-mer - A3 Local Symmetry: Cyclic - C3  (Explore in 3D)
Local Stoichiometry: Homo 3-mer - A3 Local Symmetry: Cyclic - C3  (Explore in 3D)
Local Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Tetrahedral - T  (Explore in 3D)
Global Stoichiometry: Homo 12-mer - A12 

Biological assembly 2 assigned by authors and generated by PISA,PQS (software)

Biological Assembly 3  

Global Symmetry: Tetrahedral - T  (Explore in 3D)
Global Stoichiometry: Homo 12-mer - A12 

Biological assembly 3 generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 226.11 kDa 
• Atom Count: 15,354 
• Modelled Residue Count: 1,878 
• Deposited Residue Count: 2,004 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA PROTECTION DURING STARVATION PROTEIN	A, B, C, D, E, F, G, H, I, J, K, L	167	Escherichia coli	Mutation(s): 0  Gene Names: DPS EC: 1.16
UniProt
Find proteins for P0ABT2 (Escherichia coli (strain K12)) Explore P0ABT2  Go to UniProtKB:  P0ABT2

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
TRS	M [auth A], N [auth C], O [auth C], P [auth E], Q [auth F], R [auth F], S [auth G], T [auth I], U [auth J], V [auth K], W [auth K], X [auth L]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.244 
• R-Value Work: 0.209 
• R-Value Observed: 0.209 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 117.961	α = 90
b = 139.123	β = 90
c = 263.264	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-06-17 
Deposition Author(s): Luo, J., Liu, D., White, M.A., Fox, R.O.

Revision History  

• Version 1.0: 2003-06-17
  Type: Initial release
  
• Version 1.1: 2007-10-16
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2024-04-03
  Changes: Refinement description