4XO2

crystal structure of GnsA from E.coli

• PDB DOI: https://doi.org/10.2210/pdb4XO2/pdb

• Classification: PROTEIN BINDING
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2015-01-16 Released: 2015-06-17 
• Deposition Author(s): Zhan, L.H., Gao, Z.Q., Wei, Y., Dong, Y.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.250 
• R-Value Work: 0.213 
• R-Value Observed: 0.217 

Literature

Crystal structure of GnsA from Escherichia coli

Wei, Y., Zhan, L., Gao, Z., Prive, G.G., Dong, Y.

(2015) Biochem Biophys Res Commun 462: 1-7

• PubMed: 25839658 
• DOI: https://doi.org/10.1016/j.bbrc.2015.03.133
• Primary Citation of Related Structures:  
  4XO1, 4XO2


• PubMed Abstract: 
  

  Escherichia Coli GnsA is a regulator of phosphatidylethanolamine synthesis and functions as a suppressor of both a secG null mutation and fabA6 mutations. GnsA may also be a toxin with the cognate antitoxin YmcE. Here we report the crystal structure of GnsA to 1.8 Å. GnsA forms a V shaped hairpin structure that is tightly associated into a homodimer. Our comprehensive structural study suggests that GnsA is structurally similar to an outer membrane protein, suggesting a function of protein binding.

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Organizational Affiliation: 

School of Life Science, University of Science and Technology of China, Hefei 230027, China; Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada. Electronic address: [e-mail].

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: 13.93 kDa 
• Atom Count: 1,004 
• Modelled Residue Count: 119 
• Deposited Residue Count: 120 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein GnsA	A, B	60	Escherichia coli K-12	Mutation(s): 0  Gene Names: gnsA, yccL, b4517, JW0976
UniProt
Find proteins for P0AC92 (Escherichia coli (strain K12)) Explore P0AC92  Go to UniProtKB:  P0AC92

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.250 
• R-Value Work: 0.213 
• R-Value Observed: 0.217 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.532	α = 90
b = 38.047	β = 90.1
c = 72.626	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-06-17 
Deposition Author(s): Zhan, L.H., Gao, Z.Q., Wei, Y., Dong, Y.H.

Revision History  

• Version 1.0: 2015-06-17
  Type: Initial release
  
• Version 1.1: 2024-03-20
  Changes: Data collection, Database references, Derived calculations, Source and taxonomy, Structure summary