Adenylate Kinase from Bacillus subtilis

Experimental Data Snapshot

  • Resolution: 1.90 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.197 

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Structures and analysis of highly homologous psychrophilic, mesophilic, and thermophilic adenylate kinases.

Bae, E.Phillips Jr., G.N.

(2004) J Biol Chem 279: 28202-28208

  • DOI: https://doi.org/10.1074/jbc.M401865200
  • Primary Citation of Related Structures:  
    1P3J, 1S3G

  • PubMed Abstract: 

    The crystal structures of adenylate kinases from the psychrophile Bacillus globisporus and the mesophile Bacillus subtilis have been solved and compared with that from the thermophile Bacillus stearothermophilus. This is the first example we know of where a trio of protein structures has been solved that have the same number of amino acids and a high level of identity (66-74%) and yet come from organisms with different operating temperatures. The enzymes were characterized for their own thermal denaturation and inactivation, and they exhibited the same temperature preferences as their source organisms. The structures of the three highly homologous, dynamic proteins with different temperature-activity profiles provide an opportunity to explore a molecular mechanism of cold and heat adaptation. Their analysis suggests that the maintenance of the balance between stability and flexibility is crucial for proteins to function at their environmental temperatures, and it is achieved by the modification of intramolecular interactions in the process of temperature adaptation.

  • Organizational Affiliation

    Department of Biochemistry, University of Wisconsin, Madison, WI 53706, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Adenylate kinase217Bacillus subtilisMutation(s): 0 
Gene Names: ADK
Find proteins for P16304 (Bacillus subtilis (strain 168))
Explore P16304 
Go to UniProtKB:  P16304
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP16304
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.90 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.197 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 32.8α = 90
b = 73.2β = 101.6
c = 38.1γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-05-04
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2023-08-16
    Changes: Data collection, Database references, Derived calculations, Refinement description