6ENO

Double cubane cluster oxidoreductase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.64 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

ATP-dependent substrate reduction at an [Fe8S9] double-cubane cluster.

Jeoung, J.H.Dobbek, H.

(2018) Proc Natl Acad Sci U S A 115: 2994-2999

  • DOI: https://doi.org/10.1073/pnas.1720489115
  • Primary Citation of Related Structures:  
    6ENO

  • PubMed Abstract: 

    Chemically demanding reductive conversions in biology, such as the reduction of dinitrogen to ammonia or the Birch-type reduction of aromatic compounds, depend on Fe/S-cluster-containing ATPases. These reductions are typically catalyzed by two-component systems, in which an Fe/S-cluster-containing ATPase energizes an electron to reduce a metal site on the acceptor protein that drives the reductive reaction. Here, we show a two-component system featuring a double-cubane [Fe 8 S 9 ]-cluster [{Fe 4 S 4 (SCys) 3 } 2 ( μ 2 -S)]. The double-cubane-cluster-containing enzyme is capable of reducing small molecules, such as acetylene (C 2 H 2 ), azide (N 3 - ), and hydrazine (N 2 H 4 ). We thus present a class of metalloenzymes akin in fold, metal clusters, and reactivity to nitrogenases.


  • Organizational Affiliation

    Institut für Biologie, Strukturbiologie/Biochemie, Humboldt-Universität zu Berlin, D-10099 Berlin, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Dehydratase family protein421Carboxydothermus hydrogenoformans Z-2901Mutation(s): 0 
Gene Names: CHY_0487
UniProt
Find proteins for Q3AET9 (Carboxydothermus hydrogenoformans (strain ATCC BAA-161 / DSM 6008 / Z-2901))
Explore Q3AET9 
Go to UniProtKB:  Q3AET9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ3AET9
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.64 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 80.591α = 90
b = 80.591β = 90
c = 217.428γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermanyEXC 314

Revision History  (Full details and data files)

  • Version 1.0: 2018-03-14
    Type: Initial release
  • Version 1.1: 2018-03-28
    Changes: Data collection, Database references
  • Version 1.2: 2019-10-16
    Changes: Data collection, Derived calculations