5IDR

Crystal structure of Proteus Mirabilis ScsC in a transitional conformation


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.56 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.173 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A shape-shifting redox foldase contributes to Proteus mirabilis copper resistance.

Furlong, E.J.Lo, A.W.Kurth, F.Premkumar, L.Totsika, M.Achard, M.E.S.Halili, M.A.Heras, B.Whitten, A.E.Choudhury, H.G.Schembri, M.A.Martin, J.L.

(2017) Nat Commun 8: 16065-16065

  • DOI: 10.1038/ncomms16065
  • Primary Citation of Related Structures:  
    4XVW, 5IDR

  • PubMed Abstract: 
  • Copper resistance is a key virulence trait of the uropathogen Proteus mirabilis. Here we show that P. mirabilis ScsC (PmScsC) contributes to this defence mechanism by enabling swarming in the presence of copper. We also demonstrate that PmScsC is a thioredoxin-like disulfide isomerase but, unlike other characterized proteins in this family, it is trimeric ...

    Copper resistance is a key virulence trait of the uropathogen Proteus mirabilis. Here we show that P. mirabilis ScsC (PmScsC) contributes to this defence mechanism by enabling swarming in the presence of copper. We also demonstrate that PmScsC is a thioredoxin-like disulfide isomerase but, unlike other characterized proteins in this family, it is trimeric. PmScsC trimerization and its active site cysteine are required for wild-type swarming activity in the presence of copper. Moreover, PmScsC exhibits unprecedented motion as a consequence of a shape-shifting motif linking the catalytic and trimerization domains. The linker accesses strand, loop and helical conformations enabling the sampling of an enormous folding landscape by the catalytic domains. Mutation of the shape-shifting motif abolishes disulfide isomerase activity, as does removal of the trimerization domain, showing that both features are essential to foldase function. More broadly, the shape-shifter peptide has the potential for 'plug and play' application in protein engineering.


    Organizational Affiliation

    Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DsbA-like protein
A, B, C, D, E, F
A, B, C, D, E, F
224Proteus mirabilis ATCC 29906Mutation(s): 0 
Gene Names: HMPREF0693_3732
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.56 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.173 
  • Space Group: I 4
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 193.054α = 90
b = 193.054β = 90
c = 105.806γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
Aimlessdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Australian Research Council (ARC)AustraliaFL0992138

Revision History  (Full details and data files)

  • Version 1.0: 2017-08-02
    Type: Initial release
  • Version 1.1: 2018-01-17
    Changes: Author supporting evidence
  • Version 1.2: 2020-01-01
    Changes: Author supporting evidence