3W5I

Crystal structure of NfeoB from Gallionella capsiferriformans


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.224 

Starting Model: experimental
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This is version 1.1 of the entry. See complete history


Literature

Structure of an atypical FeoB G-domain reveals a putative domain-swapped dimer.

Deshpande, C.N.McGrath, A.P.Font, J.Guilfoyle, A.P.Maher, M.J.Jormakka, M.

(2013) Acta Crystallogr Sect F Struct Biol Cryst Commun 69: 399-404

  • DOI: https://doi.org/10.1107/S1744309113005939
  • Primary Citation of Related Structures:  
    3W5I, 3W5J

  • PubMed Abstract: 

    FeoB is a transmembrane protein involved in ferrous iron uptake in prokaryotic organisms. FeoB comprises a cytoplasmic soluble domain termed NFeoB and a C-terminal polytopic transmembrane domain. Recent structures of NFeoB have revealed two structural subdomains: a canonical GTPase domain and a five-helix helical domain. The GTPase domain hydrolyses GTP to GDP through a well characterized mechanism, a process which is required for Fe(2+) transport. In contrast, the precise role of the helical domain has not yet been fully determined. Here, the structure of the cytoplasmic domain of FeoB from Gallionella capsiferriformans is reported. Unlike recent structures of NFeoB, the G. capsiferriformans NFeoB structure is highly unusual in that it does not contain a helical domain. The crystal structures of both apo and GDP-bound protein forms a domain-swapped dimer.


  • Organizational Affiliation

    Structural Biology Program, Centenary Institute, Sydney, NSW 2042, Australia.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Ferrous iron transport protein B
A, B
204Gallionella capsiferriformans ES-2Mutation(s): 0 
Gene Names: Galf_2203
UniProt
Find proteins for D9SIP4 (Gallionella capsiferriformans (strain ES-2))
Explore D9SIP4 
Go to UniProtKB:  D9SIP4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupD9SIP4
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.224 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 100.683α = 90
b = 112.533β = 90
c = 97.866γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
Blu-Icedata collection
MOSFLMdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-04-24
    Type: Initial release
  • Version 1.1: 2023-11-08
    Changes: Data collection, Database references, Derived calculations, Refinement description