3C12

Crystal Structure of FlgD from Xanthomonas campestris: Insights into the Hook Capping Essential for Flagellar Assembly

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.51 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.257 
  • R-Value Observed: 0.257 

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This is version 1.1 of the entry. See complete history. 


Literature

Crystal structure of the C-terminal domain of a flagellar hook-capping protein from Xanthomonas campestris

Kuo, W.-T., Chin, K.-H., Lo, W.-T., Wang, A.H.-J., Chou, S.-H.

(2008) J Mol Biol 381: 189-199

  • DOI: 10.1016/j.jmb.2008.05.083
  • Primary Citation of Related Structures:  
    3C12

  • PubMed Abstract: 

    • The crystal structure of the C-terminal domain of a hook-capping protein FlgD from the plant pathogen Xanthomonas campestris (Xc) has been determined to a resolution of ca 2.5 A using X-ray crystallography. The monomer of whole FlgD comprises 221 amino acids with a molecular mass of 22 ...

    The crystal structure of the C-terminal domain of a hook-capping protein FlgD from the plant pathogen Xanthomonas campestris (Xc) has been determined to a resolution of ca 2.5 A using X-ray crystallography. The monomer of whole FlgD comprises 221 amino acids with a molecular mass of 22.7 kDa, but the flexible N-terminus is cleaved for up to 75 residues during crystallization. The final structure of the C-terminal domain reveals a novel hybrid comprising a tudor-like domain interdigitated with a fibronectin type III domain. The C-terminal domain of XcFlgD forms three types of dimers in the crystal. In agreement with this, analytical ultracentrifugation and gel filtration experiments reveal that they form a stable dimer in solution. From these results, we propose that the Xc flagellar hook cap protein FlgD comprises two individual domains, a flexible N-terminal domain that cannot be detected in the current study and a stable C-terminal domain that forms a stable dimer.

    Organizational Affiliation: 

    Institute of Biochemistry, National Chung-Hsing University, Taichung, 40227, Taiwan, Republic of China.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Flagellar proteinA138Xanthomonas campestris pv. campestrisMutation(s): 0 
UniProt
Find proteins for Q8P9B5 (Xanthomonas campestris pv. campestris (strain ATCC 33913 / DSM 3586 / NCPPB 528 / LMG 568 / P 25))
Explore Q8P9B5 
Go to UniProtKB:  Q8P9B5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8P9B5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.51 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.257 
  • R-Value Observed: 0.257 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 116.71α = 90
b = 116.71β = 90
c = 71.82γ = 120
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
SOLVEphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-12-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance