1NQK

Structural Genomics, Crystal structure of Alkanesulfonate monooxygenase

• PDB DOI: https://doi.org/10.2210/pdb1NQK/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2003-01-21 Released: 2003-09-23 
• Deposition Author(s): Zhang, R., Skarina, T., Savchenko, A., Edwards, A., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.266 
• R-Value Work: 0.201 
• R-Value Observed: 0.201 

Literature

The crystal structure of the protein Alkanesulfonate monooxygenase from E. Coli

Zhang, R., Skarina, T., Savchenko, A., Edwards, A., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 41.78 kDa 
• Atom Count: 2,816 
• Modelled Residue Count: 345 
• Deposited Residue Count: 381 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Alkanesulfonate monooxygenase	A	381	Escherichia coli	Mutation(s): 0  Gene Names: ycbN EC: 1.14.14 (PDB Primary Data), 1.14.14.5 (UniProt)
UniProt
Find proteins for P80645 (Escherichia coli (strain K12)) Explore P80645  Go to UniProtKB:  P80645

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.266 
• R-Value Work: 0.201 
• R-Value Observed: 0.201 
• Space Group: I 4₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 84.251	α = 90
b = 84.251	β = 90
c = 234.132	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
d*TREK	data reduction
HKL-2000	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-09-23 
Deposition Author(s): Zhang, R., Skarina, T., Savchenko, A., Edwards, A., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2003-09-23
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2017-10-11
  Changes: Refinement description
• Version 1.4: 2024-02-14
  Changes: Data collection, Database references