6FT2

Structure of the periplasmic binding protein LAO-Q122A in complex with arginine.

• PDB DOI: https://doi.org/10.2210/pdb6FT2/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2018-02-20 Released: 2018-03-28 
• Deposition Author(s): Vigouroux, A., Morera, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.25 Å
• R-Value Free: 0.202 
• R-Value Work: 0.179 
• R-Value Observed: 0.181 

Starting Model: experimental

Literature

Structure of the periplasmic binding protein LAO-Q122A A in complex with arginin

Vigouroux, A., Morera, S.

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)

Macromolecule Content

• Total Structure Weight: 27.5 kDa 
• Atom Count: 2,146 
• Modelled Residue Count: 236 
• Deposited Residue Count: 246 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Lysine/arginine/ornithine-binding periplasmic protein	A	246	Salmonella enterica subsp. enterica serovar Typhimurium	Mutation(s): 1  Gene Names: argT, STM2355
UniProt
Find proteins for P02911 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P02911  Go to UniProtKB:  P02911

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ARG	G [auth A]	ARGININE C6 H15 N4 O2 ODKSFYDXXFIFQN-BYPYZUCNSA-O
EDO	B [auth A], C [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CL	D [auth A], E [auth A], F [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.25 Å
• R-Value Free: 0.202 
• R-Value Work: 0.179 
• R-Value Observed: 0.181 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 37.41	α = 90
b = 58.44	β = 90
c = 101.24	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2018-03-28 
Deposition Author(s): Vigouroux, A., Morera, S.

Revision History  

• Version 1.0: 2018-03-28
  Type: Initial release
  
• Version 1.1: 2024-01-17
  Changes: Data collection, Database references, Refinement description