5LTO

Ligand binding domain of Pseudomonas aeruginosa PAO1 amino acid chemoreceptors PctB in complex with L-Gln

• PDB DOI: https://doi.org/10.2210/pdb5LTO/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Pseudomonas aeruginosa
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2016-09-07 Released: 2017-09-20 
• Deposition Author(s): Gavira, J.A., Rico-Jimenez, M., Conejero-Muriel, M., Krell, T.
• Funding Organization(s): MICINN

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.46 Å
• R-Value Free: 0.277 
• R-Value Work: 0.217 
• R-Value Observed: 0.220 

Literature

How Bacterial Chemoreceptors Evolve Novel Ligand Specificities

Gavira, J.A., Jimenez-Rico, M., Pineda-Molina, E., Krell, T.

(2020) mBio 

• DOI: https://doi.org/10.1128/mBio.03066-19

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 64.32 kDa 
• Atom Count: 3,759 
• Modelled Residue Count: 479 
• Deposited Residue Count: 580 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Methyl-accepting chemotaxis protein PctB	A, B	290	Pseudomonas aeruginosa	Mutation(s): 0  Gene Names: pctB_2, AOY09_01347
UniProt
Find proteins for Q9HW91 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Explore Q9HW91  Go to UniProtKB:  Q9HW91

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GLN	C [auth A], F [auth B]	GLUTAMINE C5 H10 N2 O3 ZDXPYRJPNDTMRX-VKHMYHEASA-N
SO4	D [auth A], E [auth A], G [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	H [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.46 Å
• R-Value Free: 0.277 
• R-Value Work: 0.217 
• R-Value Observed: 0.220 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 111.427	α = 90
b = 111.427	β = 90
c = 117.715	γ = 120

Software Package:

Software Name	Purpose
Aimless	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2017-09-20 
Deposition Author(s): Gavira, J.A., Rico-Jimenez, M., Conejero-Muriel, M., Krell, T.

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Funding Organization	Location	Grant Number
MICINN	Spain	BIO2013-42297-P

Revision History  

• Version 1.0: 2017-09-20
  Type: Initial release
  
• Version 1.1: 2018-10-17
  Changes: Data collection, Database references, Structure summary
• Version 1.2: 2020-01-29
  Changes: Database references
• Version 1.3: 2020-04-29
  Changes: Structure summary
• Version 1.4: 2024-01-17
  Changes: Data collection, Database references, Refinement description