2X49

Crystal structure of the C-terminal domain of InvA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.193 

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This is version 1.1 of the entry. See complete history


Literature

Crystal Structure of the C-Terminal Domain of the Salmonella Type III Secretion System Export Apparatus Protein Inva.

Worrall, L.J.Vuckovic, M.Strynadka, N.C.J.

(2010) Protein Sci 19: 1091

  • DOI: 10.1002/pro.382
  • Primary Citation of Related Structures:  
    2X4A, 2X49

  • PubMed Abstract: 
  • InvA is a prominent inner-membrane component of the Salmonella type III secretion system (T3SS) apparatus, which is responsible for regulating virulence protein export in pathogenic bacteria. InvA is made up of an N-terminal integral membrane domain and a C-terminal cytoplasmic domain that is proposed to form part of a docking platform for the soluble export apparatus proteins notably the T3SS ATPase InvC ...

    InvA is a prominent inner-membrane component of the Salmonella type III secretion system (T3SS) apparatus, which is responsible for regulating virulence protein export in pathogenic bacteria. InvA is made up of an N-terminal integral membrane domain and a C-terminal cytoplasmic domain that is proposed to form part of a docking platform for the soluble export apparatus proteins notably the T3SS ATPase InvC. Here, we report the novel crystal structure of the C-terminal domain of Salmonella InvA which shows a compact structure composed of four subdomains. The overall structure is unique although the first and second subdomains exhibit structural similarity to the peripheral stalk of the A/V-type ATPase and a ring building motif found in other T3SS proteins respectively.


    Organizational Affiliation

    Centre for Blood Research, Department of Biochemistry and Molecular Biology, University of British Columbia, Life Sciences Centre, British Columbia, Canada V6T 1Z3.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
INVASION PROTEIN INVA A333Salmonella enterica subsp. enterica serovar Typhimurium str. LT2Mutation(s): 0 
Gene Names: invASTM2896
Find proteins for P0A1I3 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720))
Explore P0A1I3 
Go to UniProtKB:  P0A1I3
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.193 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.991α = 90
b = 57.413β = 90
c = 113.87γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
autoSHARPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-03-31
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance