6EYL

Crystal structure of OpuBC in complex with carnitine

• PDB DOI: https://doi.org/10.2210/pdb6EYL/pdb

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


• Deposited: 2017-11-13 Released: 2018-11-21 
• Deposition Author(s): Peherstorfer, S., Teichmann, L., Smits, S.H., Sschmitt, L., Bremer, E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.192 
• R-Value Work: 0.161 
• R-Value Observed: 0.163 

Literature

Reprogramming the substrate specificity of an ABC import system by a single amino acid substitution in its cognate ligand binding protein

Peherstorfer, S., Teichmann, L., Smits, S.H., Schmitt, L., Bremer, E.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 69.19 kDa 
• Atom Count: 5,532 
• Modelled Residue Count: 555 
• Deposited Residue Count: 612 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Osmotically activated L-carnitine/choline ABC transporter substrate-binding protein OpuCC	A, B	306	Bacillus subtilis	Mutation(s): 0  Gene Names: B4417_3194
UniProt
Find proteins for Q45462 (Bacillus subtilis (strain 168)) Explore Q45462  Go to UniProtKB:  Q45462

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
152	C [auth A], D [auth B]	CARNITINE C7 H16 N O3 PHIQHXFUZVPYII-ZCFIWIBFSA-O

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.192 
• R-Value Work: 0.161 
• R-Value Observed: 0.163 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 29.71	α = 90
b = 66.61	β = 91.84
c = 126.99	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2018-11-21 
Deposition Author(s): Peherstorfer, S., Teichmann, L., Smits, S.H., Sschmitt, L., Bremer, E.

Revision History  

• Version 1.0: 2018-11-21
  Type: Initial release
  
• Version 1.1: 2024-01-17
  Changes: Data collection, Database references, Refinement description