4EW5 | pdb_00004ew5

C-terminal domain of inner membrane protein CigR from Salmonella enterica.

• PDB DOI: https://doi.org/10.2210/pdb4EW5/pdb

• Classification: MEMBRANE PROTEIN
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2012-04-26 Released: 2012-05-23 
• Deposition Author(s): Osipiuk, J., Xu, X., Cui, H., Brown, R.N., Cort, J.R., Heffron, F., Nakayasu, E.S., Niemann, G.S., Merkley, E.D., Savchenko, A., Adkins, J.N., Joachimiak, A., Midwest Center for Structural Genomics (MCSG), Program for the Characterization of Secreted Effector Proteins (PCSEP)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.87 Å
• R-Value Free: 
  0.230 (Depositor), 0.234 (DCC) 
• R-Value Work: 
  0.176 (Depositor), 0.181 (DCC) 
• R-Value Observed: 
  0.178 (Depositor) 

Literature

C-terminal domain of inner membrane protein CigR from Salmonella enterica.

Osipiuk, J., Xu, X., Cui, H., Brown, R.N., Cort, J.R., Heffron, F., Nakayasu, E.S., Niemann, G.S., Merkley, E.D., Savchenko, A., Adkins, J.N., Joachimiak, A.

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: 21.91 kDa 
• Atom Count: 1,677 
• Modeled Residue Count: 199 
• Deposited Residue Count: 204 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CigR Protein	A, B	102	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0  Gene Names: cigR, STM3762
UniProt
Find proteins for Q9Z621 (Salmonella typhimurium) Explore Q9Z621  Go to UniProtKB:  Q9Z621

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EDO	C [auth A], D [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.87 Å
• R-Value Free:  0.230 (Depositor), 0.234 (DCC) 
• R-Value Work:  0.176 (Depositor), 0.181 (DCC) 
• R-Value Observed: 0.178 (Depositor) 

Diffraction Data: https://doi.org/10.18430/M34EW5

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 49.87	α = 90
b = 54.811	β = 90
c = 73.992	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
SHELXD	phasing
MLPHARE	phasing
DM	phasing
ARP/wARP	model building
HKL-3000	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-05-23 
Deposition Author(s): Osipiuk, J., Xu, X., Cui, H., Brown, R.N., Cort, J.R., Heffron, F., Nakayasu, E.S., Niemann, G.S., Merkley, E.D., Savchenko, A., Adkins, J.N., Joachimiak, A., Midwest Center for Structural Genomics (MCSG), Program for the Characterization of Secreted Effector Proteins (PCSEP)

Revision History  

• Version 1.0: 2012-05-23
  Type: Initial release
  
• Version 1.1: 2017-11-15
  Changes: Refinement description
• Version 1.2: 2024-10-16
  Changes: Data collection, Database references, Derived calculations, Structure summary