1FR2

CRYSTAL STRUCTURE OF THE E9 DNASE DOMAIN WITH A MUTANT IMMUNITY PROTEIN IM9(E41A)

• PDB DOI: https://doi.org/10.2210/pdb1FR2/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2000-09-07 Released: 2003-06-17 
• Deposition Author(s): Kuhlmann, U.C., Pommer, A.J., Moore, G.M., James, R., Kleanthous, C., Hemmings, A.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.232 
• R-Value Work: 0.205 

Literature

CRYSTAL STRUCTURE OF THE E9 DNASE DOMAIN WITH A MUTANT IMMUNITY PROTEIN IM9(E41A)

Kuhlmann, U.C., Pommer, A.J., Moore, G.M., James, R., Kleanthous, C., Hemmings, A.M.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 24.81 kDa 
• Atom Count: 1,866 
• Modelled Residue Count: 214 
• Deposited Residue Count: 220 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
COLICIN E9 IMMUNITY PROTEIN	A	86	Escherichia coli	Mutation(s): 1
UniProt
Find proteins for P13479 (Escherichia coli) Explore P13479  Go to UniProtKB:  P13479

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
COLICIN E9	B	134	Escherichia coli	Mutation(s): 0  EC: 3.1.21.1
UniProt
Find proteins for P09883 (Escherichia coli) Explore P09883  Go to UniProtKB:  P09883

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PO4	C [auth B]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
ZN	D [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.232 
• R-Value Work: 0.205 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 45.05	α = 90
b = 51.64	β = 90
c = 87.12	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): Kuhlmann, U.C., Pommer, A.J., Moore, G.M., James, R., Kleanthous, C., Hemmings, A.M.

Revision History  

• Version 1.0: 2003-06-17
  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: 2017-02-01
  Changes: Structure summary
• Version 1.4: 2021-11-03
  Changes: Database references, Derived calculations
• Version 1.5: 2024-02-07
  Changes: Data collection