2B20

Crystal Structure of Enterochelin Esterase from Shigella flexneri Enterochelin Esterase

• PDB DOI: https://doi.org/10.2210/pdb2B20/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Shigella flexneri 2a str. 2457T
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2005-09-16 Released: 2005-11-01 
• Deposition Author(s): Kim, Y., Maltseva, N., Dementieva, I., Quartey, P., Holzle, D., Collart, F., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.95 Å
• R-Value Free: 
  0.277 (Depositor), 0.278 (DCC) 
• R-Value Work: 
  0.222 (Depositor), 0.219 (DCC) 
• R-Value Observed: 
  0.224 (Depositor) 

Literature

Crystal Structure of Enterochelin Esterase from Shigella flexneri Enterochelin Esterase

Kim, Y., Maltseva, N., Dementieva, I., Quartey, P., Holzle, D., Collart, F., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 46.45 kDa 
• Atom Count: 3,278 
• Modelled Residue Count: 391 
• Deposited Residue Count: 403 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
enterochelin esterase	A	403	Shigella flexneri 2a str. 2457T	Mutation(s): 8
UniProt
Find proteins for A0A0H2VTI6 (Shigella flexneri) Explore A0A0H2VTI6  Go to UniProtKB:  A0A0H2VTI6

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
TLA	B [auth A]	L(+)-TARTARIC ACID C4 H6 O6 FEWJPZIEWOKRBE-JCYAYHJZSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.95 Å
• R-Value Free:  0.277 (Depositor), 0.278 (DCC) 
• R-Value Work:  0.222 (Depositor), 0.219 (DCC) 
• R-Value Observed: 0.224 (Depositor) 

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66.173	α = 90
b = 66.173	β = 90
c = 252.125	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-2000	data scaling
HKL-3000	phasing
SHELX	phasing
SOLVE	phasing
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-11-01 
Deposition Author(s): Kim, Y., Maltseva, N., Dementieva, I., Quartey, P., Holzle, D., Collart, F., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2005-11-01
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-11-06
  Changes: Data collection, Database references, Derived calculations, Structure summary