1OTK

Structural Genomics, Protein paaC

• PDB DOI: https://doi.org/10.2210/pdb1OTK/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2003-03-21 Released: 2003-10-14 
• Deposition Author(s): Zhang, R., Joachimiak, A., Edwards, A., Savchenko, A., Skarina, T., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.229 
• R-Value Work: 0.194 
• R-Value Observed: 0.194 

Literature

The 2 A crystal structure of protein paaC from E. Coli

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

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: 55.94 kDa 
• Atom Count: 4,195 
• Modelled Residue Count: 488 
• Deposited Residue Count: 498 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phenylacetic acid degradation protein paaC	A, B	249	Escherichia coli K-12	Mutation(s): 0  Gene Names: PAAC OR B1390
UniProt
Find proteins for P76079 (Escherichia coli (strain K12)) Explore P76079  Go to UniProtKB:  P76079

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.229 
• R-Value Work: 0.194 
• R-Value Observed: 0.194 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 59.216	α = 90
b = 95.707	β = 90
c = 127.088	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: 2003-10-14 
Deposition Author(s): Zhang, R., Joachimiak, A., Edwards, A., Savchenko, A., Skarina, T., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2003-10-14
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.3: 2017-10-11
  Changes: Refinement description
• Version 1.4: 2024-10-30
  Changes: Data collection, Database references, Structure summary