3QQ5

Crystal structure of the [FeFe]-hydrogenase maturation protein HydF


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.99 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.274 
  • R-Value Observed: 0.274 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal Structure of HydF Scaffold Protein Provides Insights into [FeFe]-Hydrogenase Maturation.

Cendron, L.Berto, P.D'Adamo, S.Vallese, F.Govoni, C.Posewitz, M.C.Giacometti, G.M.Costantini, P.Zanotti, G.

(2011) J Biol Chem 286: 43944-43950

  • DOI: 10.1074/jbc.M111.281956
  • Primary Citation of Related Structures:  
    3QQ5

  • PubMed Abstract: 
  • [FeFe]-hydrogenases catalyze the reversible production of H2 in some bacteria and unicellular eukaryotes. These enzymes require ancillary proteins to assemble the unique active site H-cluster, a complex structure composed of a 2Fe center bridged to a [4Fe-4S] cubane ...

    [FeFe]-hydrogenases catalyze the reversible production of H2 in some bacteria and unicellular eukaryotes. These enzymes require ancillary proteins to assemble the unique active site H-cluster, a complex structure composed of a 2Fe center bridged to a [4Fe-4S] cubane. The first crystal structure of a key factor in the maturation process, HydF, has been determined at 3 Å resolution. The protein monomer present in the asymmetric unit of the crystal comprises three domains: a GTP-binding domain, a dimerization domain, and a metal cluster-binding domain, all characterized by similar folding motifs. Two monomers dimerize, giving rise to a stable dimer, held together mainly by the formation of a continuous β-sheet comprising eight β-strands from two monomers. Moreover, in the structure presented, two dimers aggregate to form a supramolecular organization that represents an inactivated form of the HydF maturase. The crystal structure of the latter furnishes several clues about the events necessary for cluster generation/transfer and provides an excellent model to begin elucidating the structure/function of HydF in [FeFe]-hydrogenase maturation.


    Organizational Affiliation

    Department of Biological Chemistry, University of Padua, Padua, Italy.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Small GTP-binding proteinA423Thermotoga neapolitana DSM 4359Mutation(s): 0 
Gene Names: CTN_0227
Find proteins for B9KBK7 (Thermotoga neapolitana (strain ATCC 49049 / DSM 4359 / NS-E))
Explore B9KBK7 
Go to UniProtKB:  B9KBK7
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.99 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.274 
  • R-Value Observed: 0.274 
  • Space Group: P 2 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 138.259α = 90
b = 138.259β = 90
c = 138.259γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
SHARPphasing
CNSrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-11-16
    Type: Initial release
  • Version 1.1: 2011-11-23
    Changes: Database references
  • Version 1.2: 2012-01-11
    Changes: Database references