2CHU

CeuE in complex with mecam

• PDB DOI: https://doi.org/10.2210/pdb2CHU/pdb

• Classification: BINDING PROTEIN
• Organism(s): Campylobacter jejuni
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2006-03-16 Released: 2006-08-14 
• Deposition Author(s): Muller, A., Wilkinson, A.J., Wilson, K.S., Duhme-Klair, A.K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 
  0.246 (Depositor), 0.260 (DCC) 
• R-Value Work: 
  0.170 (Depositor), 0.180 (DCC) 
• R-Value Observed: 
  0.174 (Depositor) 

Literature

An [{Fe(Mecam)}(2)](6-) Bridge in the Crystal Structure of a Ferric Enterobactin Binding Protein.

Muller, A., Wilkinson, A.J., Wilson, K.S., Duhme-Klair, A.K.

(2006) Angew Chem Int Ed Engl 45: 5132

• PubMed: 16927323 
• DOI: https://doi.org/10.1002/anie.200601198
• Primary Citation of Related Structures:  
  2CHU

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Organizational Affiliation: 

Department of Chemistry, University of York, York, YO10 5DD, UK.

Biological Assembly 1  

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

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

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 66.73 kDa 
• Atom Count: 4,507 
• Modelled Residue Count: 566 
• Deposited Residue Count: 592 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ENTEROCHELIN UPTAKE PERIPLASMIC BINDING PROTEIN	A, B	296	Campylobacter jejuni	Mutation(s): 0
UniProt
Find proteins for Q0P8Q4 (Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 / NCTC 11168)) Explore Q0P8Q4  Go to UniProtKB:  Q0P8Q4

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ECA	D [auth B], E [auth B]	N,N',N''-[BENZENE-1,3,5-TRIYLTRIS(METHYLENE)]TRIS(2,3-DIHYDROXYBENZAMIDE) C30 H27 N3 O9 GCTFIRZGPIUOAK-UHFFFAOYSA-N
ZN	C [auth A], H [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
FE	F [auth B], G [auth B]	FE (III) ION Fe VTLYFUHAOXGGBS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free:  0.246 (Depositor), 0.260 (DCC) 
• R-Value Work:  0.170 (Depositor), 0.180 (DCC) 
• R-Value Observed: 0.174 (Depositor) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 73.072	α = 91.29
b = 42.445	β = 97.06
c = 57.523	γ = 107.34

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-08-14 
Deposition Author(s): Muller, A., Wilkinson, A.J., Wilson, K.S., Duhme-Klair, A.K.

Revision History  

• Version 1.0: 2006-08-14
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2024-05-08
  Changes: Data collection, Database references, Derived calculations, Other