3FKQ

Crystal structure of NtrC-like two-domain protein (RER070207001320) from Eubacterium rectale at 2.10 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structure of the pilus assembly protein TadZ from Eubacterium rectale: implications for polar localization.

Xu, Q.Christen, B.Chiu, H.J.Jaroszewski, L.Klock, H.E.Knuth, M.W.Miller, M.D.Elsliger, M.A.Deacon, A.M.Godzik, A.Lesley, S.A.Figurski, D.H.Shapiro, L.Wilson, I.A.

(2012) Mol Microbiol 83: 712-727

  • DOI: 10.1111/j.1365-2958.2011.07954.x
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The tad (tight adherence) locus encodes a protein translocation system that produces a novel variant of type IV pili. The pilus assembly protein TadZ (called CpaE in Caulobacter crescentus) is ubiquitous in tad loci, but is absent in other type IV pi ...

    The tad (tight adherence) locus encodes a protein translocation system that produces a novel variant of type IV pili. The pilus assembly protein TadZ (called CpaE in Caulobacter crescentus) is ubiquitous in tad loci, but is absent in other type IV pilus biogenesis systems. The crystal structure of TadZ from Eubacterium rectale (ErTadZ), in complex with ATP and Mg(2+) , was determined to 2.1 Å resolution. ErTadZ contains an atypical ATPase domain with a variant of a deviant Walker-A motif that retains ATP binding capacity while displaying only low intrinsic ATPase activity. The bound ATP plays an important role in dimerization of ErTadZ. The N-terminal atypical receiver domain resembles the canonical receiver domain of response regulators, but has a degenerate, stripped-down 'active site'. Homology modelling of the N-terminal atypical receiver domain of CpaE indicates that it has a conserved protein-protein binding surface similar to that of the polar localization module of the social mobility protein FrzS, suggesting a similar function. Our structural results also suggest that TadZ localizes to the pole through the atypical receiver domain during an early stage of pili biogenesis, and functions as a hub for recruiting other pili components, thus providing insights into the Tad pilus assembly process.


    Organizational Affiliation

    Joint Center for Structural Genomics.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NtrC-like two-domain protein
A
373Eubacterium rectaleMutation(s): 0 
Gene Names: RER070207001320
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download CCD File 
A
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
2PE
Query on 2PE

Download CCD File 
A
NONAETHYLENE GLYCOL
C18 H38 O10
YZUUTMGDONTGTN-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

Download CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.190 
  • R-Value Observed: 0.191 
  • Space Group: C 1 2 1
  • Diffraction Data DOI: 3FKQ Protein Diffraction
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 121.506α = 90
b = 79.495β = 96.16
c = 55.022γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PHENIXrefinement
SHELXphasing
MolProbitymodel building
SCALAdata scaling
PDB_EXTRACTdata extraction
MOSFLMdata reduction
SHELXDphasing
autoSHARPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-01-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2012-03-14
    Changes: Database references
  • Version 1.3: 2017-10-25
    Changes: Author supporting evidence, Refinement description
  • Version 1.4: 2019-07-24
    Changes: Data collection, Database references, Derived calculations, Refinement description