3TLK

Crystal structure of holo FepB

• PDB DOI: https://doi.org/10.2210/pdb3TLK/pdb

• Classification: METAL TRANSPORT
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2011-08-30 Released: 2013-01-16 
• Deposition Author(s): Li, N., Gu, L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.217 
• R-Value Work: 0.179 
• R-Value Observed: 0.180 

Starting Model: experimental

Literature

Crystal structure of holo FepB

Li, N., Gu, L.

To be published.

Biological Assembly 1  

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

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

Biological Assembly 2  

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

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

Biological Assembly 3  

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

Biological assembly 3 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 109.32 kDa 
• Atom Count: 7,572 
• Modelled Residue Count: 882 
• Deposited Residue Count: 978 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ferrienterobactin-binding periplasmic protein	A, B, C	326	Escherichia coli K-12	Mutation(s): 0  Gene Names: b0592, fepB, JW0584
UniProt
Find proteins for P0AEL6 (Escherichia coli (strain K12)) Explore P0AEL6  Go to UniProtKB:  P0AEL6

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EB4	E [auth A], G [auth A], I [auth B], M [auth C]	N,N',N''-[(3S,7S,11S)-2,6,10-trioxo-1,5,9-trioxacyclododecane-3,7,11-triyl]tris(2,3-dihydroxybenzamide) C30 H27 N3 O15 SERBHKJMVBATSJ-BZSNNMDCSA-N
DIO	F [auth A], J [auth B], N [auth C]	1,4-DIETHYLENE DIOXIDE C4 H8 O2 RYHBNJHYFVUHQT-UHFFFAOYSA-N
FE	D [auth A], H [auth B], K [auth B], L [auth C]	FE (III) ION Fe VTLYFUHAOXGGBS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.217 
• R-Value Work: 0.179 
• R-Value Observed: 0.180 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 74.024	α = 90
b = 131.591	β = 90
c = 196.113	γ = 90

Software Package:

Software Name	Purpose
MAR345dtb	data collection
PHASER	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-01-16 
Deposition Author(s): Li, N., Gu, L.

Revision History  

• Version 1.0: 2013-01-16
  Type: Initial release
  
• Version 1.1: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description