9ILW | pdb_00009ilw

Crystal structure of the periplasmic domain of sensor protein EvgS from Escherichia coli str. K-12 substr. MG1655

• PDB DOI: https://doi.org/10.2210/pdb9ILW/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-07-01 Released: 2025-07-09 
• Deposition Author(s): Teng, Y., Liu, R., Luo, B.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 
  0.256 (Depositor), 0.256 (DCC) 
• R-Value Work: 
  0.204 (Depositor), 0.205 (DCC) 
• R-Value Observed: 
  0.207 (Depositor) 

Starting Model: in silico

Literature

Crystal structure of the periplasmic domain of sensor protein EvgS from Escherichia coli str. K-12 substr. MG1655

Teng, Y., Liu, R., Luo, B.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 116.84 kDa 
• Atom Count: 8,024 
• Modeled Residue Count: 992 
• Deposited Residue Count: 1,026 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acid-sensing system histidine kinase EvgS	A, B	513	Escherichia coli	Mutation(s): 0  Gene Names: evgS, GP975_24990 EC: 2.7.13.3
UniProt
Find proteins for P30855 (Escherichia coli (strain K12)) Explore P30855  Go to UniProtKB:  P30855

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free:  0.256 (Depositor), 0.256 (DCC) 
• R-Value Work:  0.204 (Depositor), 0.205 (DCC) 
• R-Value Observed: 0.207 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 85.56	α = 90
b = 109.914	β = 90
c = 118.666	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-07-09 
Deposition Author(s): Teng, Y., Liu, R., Luo, B.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2025-07-09
  Type: Initial release