2WI8 | pdb_00002wi8

Crystal structure of the triscatecholate siderophore binding protein FeuA from Bacillus subtilis

• PDB DOI: https://doi.org/10.2210/pdb2WI8/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Bacillus subtilis
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2009-05-08 Released: 2009-09-22 
• Deposition Author(s): Peuckert, F., Miethke, M., Albrecht, A.G., Essen, L.-O., Marahiel, M.A.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 
  0.215 (Depositor), 0.231 (DCC) 
• R-Value Work: 
  0.182 (Depositor) 
• R-Value Observed: 
  0.183 (Depositor) 

Starting Model: experimental

Literature

Structural Basis and Stereochemistry of Triscatecholate Siderophore Binding by Feua.

Peuckert, F., Miethke, M., Albrecht, A.G., Essen, L.-O., Marahiel, M.A.

(2009) Angew Chem Int Ed Engl 48: 7924

• PubMed: 19746494 
• DOI: https://doi.org/10.1002/anie.200902495
• Primary Citation Related Structures: 
  2WHY, 2WI8

---

Organizational Affiliation: 
• Fachbereich Chemie, Biochemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content 

• Total Structure Weight: 34.85 kDa 
• Atom Count: 2,489 
• Modeled Residue Count: 283 
• Deposited Residue Count: 311 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
IRON-UPTAKE SYSTEM-BINDING PROTEIN	A	311	Bacillus subtilis	Mutation(s): 0
UniProt
Find proteins for P40409 (Bacillus subtilis (strain 168)) Explore P40409  Go to UniProtKB:  P40409

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	B [auth A], C [auth A], D [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free:  0.215 (Depositor), 0.231 (DCC) 
• R-Value Work:  0.182 (Depositor) 
• R-Value Observed: 0.183 (Depositor) 

Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 54.71	α = 90
b = 54.71	β = 90
c = 177.66	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-09-22 
Deposition Author(s): Peuckert, F., Miethke, M., Albrecht, A.G., Essen, L.-O., Marahiel, M.A.

Revision History  

• Version 1.0: 2009-09-22
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2011-12-07
  Changes: Database references
• Version 1.3: 2023-12-13
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description