2GK3

Cytoplasmic Protein STM3548 from Salmonella typhimurium


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.180 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Novel hexamerization motif is discovered in a conserved cytoplasmic protein from Salmonella typhimurium.

Petrova, T.Cuff, M.E.Wu, R.Kim, Y.Holzle, D.Joachimiak, A.

(2007) J Struct Funct Genomics 8: 19-25

  • DOI: https://doi.org/10.1007/s10969-007-9028-1
  • Primary Citation of Related Structures:  
    2GK3

  • PubMed Abstract: 

    The cytoplasmic protein Stm3548 of unknown function obtained from a strain of Salmonella typhimurium was determined by X-ray crystallography at a resolution of 2.25 A. The asymmetric unit contains a hexamer of structurally identical monomers. The monomer is a globular domain with a long beta-hairpin protrusion that distinguishes this structure. This beta-hairpin occupies a central position in the hexamer, and its residues participate in the majority of interactions between subunits of the hexamer. We suggest that the structure of Stm3548 presents a new hexamerization motif. Because the residues participating in interdomain interactions are highly conserved among close members of protein family DUF1355 and buried solvent accessible area for the hexamer is significant, the hexamer is most likely conserved as well. A light scattering experiment confirmed the presence of hexamer in solution.


  • Organizational Affiliation

    Midwest Center for Structural Genomics and Structural Biology Center, Biosciences, Argonne National Laboratory, Argonne, IL 60439, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
putative cytoplasmic protein
A, B, C, D, E
A, B, C, D, E, F
256Salmonella enterica subsp. enterica serovar Typhimurium str. LT2Mutation(s): 8 
Gene Names: DUF1355
UniProt
Find proteins for Q8ZLF9 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720))
Explore Q8ZLF9 
Go to UniProtKB:  Q8ZLF9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8ZLF9
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.180 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 182.892α = 90
b = 79.367β = 90
c = 115.66γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
SBC-Collectdata collection
HKL-2000data scaling
autoSHARPphasing
SHELXDphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-05-02
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.3: 2011-08-03
    Changes: Database references