1IXB

CRYSTAL STRUCTURE OF THE E. COLI MANGANESE(II) SUPEROXIDE DISMUTASE MUTANT Y174F AT 0.90 ANGSTROMS RESOLUTION.

• PDB DOI: https://doi.org/10.2210/pdb1IXB/pdb

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


• Deposited: 2002-06-18 Released: 2002-12-18 
• Deposition Author(s): Anderson, B.F., Edwards, R.A., Whittaker, M.M., Whittaker, J.W., Baker, E.N., Jameson, G.B.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 0.90 Å
• R-Value Free: 
  0.126 (Depositor), 0.110 (DCC) 
• R-Value Work: 
  0.111 (Depositor), 0.100 (DCC) 
• R-Value Observed: 
  0.111 (Depositor) 

Starting Model: experimental

Literature

Structures at 0.90 A resolution of the oxidised and reduced forms of the Y174F mutant of the manganese superoxide dismutase from Escherichia coli

Anderson, B.F., Edwards, R.A., Whittaker, M.M., Whittaker, J.W., Baker, E.N., Jameson, G.B.

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 and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 46.11 kDa 
• Atom Count: 4,344 
• Modelled Residue Count: 410 
• Deposited Residue Count: 410 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
SUPEROXIDE DISMUTASE	A, B	205	Escherichia coli	Mutation(s): 1  EC: 1.15.1.1
UniProt
Find proteins for P00448 (Escherichia coli (strain K12)) Explore P00448  Go to UniProtKB:  P00448

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MH2	C [auth A], D [auth B]	MANGANESE ION, 1 HYDROXYL COORDINATED H Mn O COIFCHMDWGZDDC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 0.90 Å
• R-Value Free:  0.126 (Depositor), 0.110 (DCC) 
• R-Value Work:  0.111 (Depositor), 0.100 (DCC) 
• R-Value Observed: 0.111 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.815	α = 90
b = 45.832	β = 98.2
c = 96.187	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
SHELXL-97	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-12-18 
Deposition Author(s): Anderson, B.F., Edwards, R.A., Whittaker, M.M., Whittaker, J.W., Baker, E.N., Jameson, G.B.

Revision History  

• Version 1.0: 2002-12-18
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Atomic model, Version format compliance
• Version 1.3: 2021-11-10
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2023-10-25
  Changes: Data collection, Refinement description