3EPU

Crystal Structure of STM2138, a novel virulence chaperone in Salmonella

• PDB DOI: https://doi.org/10.2210/pdb3EPU/pdb

• Classification: CHAPERONE
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-09-30 Released: 2009-09-29 
• Deposition Author(s): Zhang, K., Andres, S.N., Hannemann, M., Coombes, B., Junop, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.253 
• R-Value Work: 0.214 
• R-Value Observed: 0.216 

Starting Model: experimental

Literature

Structural analysis and quantitative proteomic interactome of a novel virulence chaperone in Salmonella

Cooper, C., Zhang, K., Andres, S.N., Hannemann, M., Junop, M.S., Coombes, B.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 33.81 kDa 
• Atom Count: 2,260 
• Modelled Residue Count: 267 
• Deposited Residue Count: 288 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
STM2138 Virulence Chaperone	A, B	144	Salmonella enterica subsp. enterica serovar Typhimurium	Mutation(s): 0  Gene Names: STM2138
UniProt
Find proteins for Q8ZNP3 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore Q8ZNP3  Go to UniProtKB:  Q8ZNP3

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.253 
• R-Value Work: 0.214 
• R-Value Observed: 0.216 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 103.838	α = 90
b = 46.832	β = 106.39
c = 65.936	γ = 90

Software Package:

Software Name	Purpose
CBASS	data collection
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-09-29 
Deposition Author(s): Zhang, K., Andres, S.N., Hannemann, M., Coombes, B., Junop, M.

Revision History  

• Version 1.0: 2009-09-29
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2013-02-13
  Changes: Refinement description
• Version 1.3: 2023-09-06
  Changes: Data collection, Database references, Refinement description