4LQ5 | pdb_00004lq5

Crystal structure of ligand binding domain of CysB, a LysR member from Salmonella typhimurium LT2 in complex with effector ligand, O-acetylserine at 2.8A

• PDB DOI: https://doi.org/10.2210/pdb4LQ5/pdb

• Classification: GENE REGULATION
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-07-17 Released: 2014-07-23 
• Deposition Author(s): Mittal, M., Singh, A.K., Kumaran, S.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 
  0.284 (Depositor), 0.270 (DCC) 
• R-Value Work: 
  0.234 (Depositor), 0.230 (DCC) 
• R-Value Observed: 
  0.236 (Depositor) 

Starting Model: experimental

Literature

rystal structure of ligand binding domain of CysB, a LysR member from Salmonella typhimurium LT2 in complex with effector ligand, O-acetylserine at 2.8A

Mittal, M., Singh, A.K., Kumaran, S.

To be published.

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: 27.81 kDa 
• Atom Count: 1,862 
• Modeled Residue Count: 239 
• Deposited Residue Count: 245 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HTH-type transcriptional regulator CysB	A	245	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0  Gene Names: cysB, STM1713
UniProt
Find proteins for P06614 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P06614  Go to UniProtKB:  P06614

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
OAS	B [auth A], C [auth A]	O-ACETYLSERINE C5 H9 N O4 VZXPDPZARILFQX-BYPYZUCNSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free:  0.284 (Depositor), 0.270 (DCC) 
• R-Value Work:  0.234 (Depositor), 0.230 (DCC) 
• R-Value Observed: 0.236 (Depositor) 

Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.979	α = 90
b = 74.449	β = 90
c = 103.576	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-07-23 
Deposition Author(s): Mittal, M., Singh, A.K., Kumaran, S.

Revision History  

• Version 1.0: 2014-07-23
  Type: Initial release
  
• Version 1.1: 2023-11-08
  Changes: Data collection, Database references, Derived calculations, Refinement description