2H30

Crystal structure of the N-terminal domain of PilB from Neisseria gonorrhoeae


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Thioredoxin Domain of Neisseria gonorrhoeae PilB Can Use Electrons from DsbD to Reduce Downstream Methionine Sulfoxide Reductases.

Brot, N.Collet, J.F.Johnson, L.C.Jonsson, T.J.Weissbach, H.Lowther, W.T.

(2006) J.Biol.Chem. 281: 32668-32675

  • DOI: 10.1074/jbc.M604971200

  • PubMed Abstract: 
  • The PilB protein from Neisseria gonorrhoeae is located in the periplasm and made up of three domains. The N-terminal, thioredoxin-like domain (NT domain) is fused to tandem methionine sulfoxide reductase A and B domains (MsrA/B). We show that the alp ...

    The PilB protein from Neisseria gonorrhoeae is located in the periplasm and made up of three domains. The N-terminal, thioredoxin-like domain (NT domain) is fused to tandem methionine sulfoxide reductase A and B domains (MsrA/B). We show that the alpha domain of Escherichia coli DsbD is able to reduce the oxidized NT domain, which suggests that DsbD in Neisseria can transfer electrons from the cytoplasmic thioredoxin to the periplasm for the reduction of the MsrA/B domains. An analysis of the available complete genomes provides further evidence for this proposition in other bacteria where DsbD/CcdA, Trx, MsrA, and MsrB gene homologs are all located in a gene cluster with a common transcriptional direction. An examination of wild-type PilB and a panel of Cys to Ser mutants of the full-length protein and the individually expressed domains have also shown that the NT domain more efficiently reduces the MsrA/B domains when in the polyprotein context. Within this frame-work there does not appear to be a preference for the NT domain to reduce the proximal MsrA domain over MsrB domain. Finally, we report the 1.6A crystal structure of the NT domain. This structure confirms the presence of a surface loop that makes it different from other membrane-tethered, Trx-like molecules, including TlpA, CcmG, and ResA. Subtle differences are observed in this loop when compared with the Neisseria meningitidis NT domain structure. The data taken together supports the formation of specific NT domain interactions with the MsrA/B domains and its in vivo recycling partner, DsbD.


    Organizational Affiliation

    Hospital for Special Surgery, Department of Microbiology and Immunology, Weill Medical College of Cornell University, New York, NY 10021, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Peptide methionine sulfoxide reductase msrA/msrB
A
164Neisseria gonorrhoeaeMutation(s): 2 
Gene Names: msrAB (pilB)
Find proteins for P14930 (Neisseria gonorrhoeae)
Go to UniProtKB:  P14930
Small Molecules
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: 1.6 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.188 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 43.381α = 90.00
b = 51.421β = 90.00
c = 80.396γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
SOLVEphasing
REFMACrefinement
d*TREKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-08-22
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance