4F0W

Crystal structure of type effector Tse1 C30A mutant from Pseudomonas aeruginousa

• PDB DOI: https://doi.org/10.2210/pdb4F0W/pdb

• Classification: HYDROLASE
• Organism(s): Pseudomonas aeruginosa PAO1
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2012-05-05 Released: 2012-06-27 
• Deposition Author(s): Zhang, H., Gao, Z.Q., Dong, Y.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.24 Å
• R-Value Free: 0.192 
• R-Value Work: 0.183 
• R-Value Observed: 0.183 

Starting Model: experimental

Literature

Crystal structure of type VI effector Tse1 from Pseudomonas aeruginosa.

Zhang, H., Gao, Z.Q., Su, X.D., Dong, Y.H.

(2012) FEBS Lett 586: 3193-3199

• PubMed: 22750141 
• DOI: https://doi.org/10.1016/j.febslet.2012.06.036
• Primary Citation of Related Structures:  
  4F0V, 4F0W


• PubMed Abstract: 
  

  The type VI secretion systems (T6SS) have emerging roles in interspecies competition. In order to have an advantage in defense against other organisms, this system in Pseudomonas aeruginosa delivers a peptidoglycan amidase (Tse1) to the periplasmic space of a competitor. An immune protein (Tsi1) is also produced by the bacterium to protect itself from damage caused by Tse1. Tsi1 directly interacts with Tse1. We report that the crystal structure of Tse1 displays a common CHAP protein fold. Strikingly, our structures showed that the third residue in the catalytic triad may be novel as this residue type has not been observed previously.

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Organizational Affiliation: 

State Key Laboratory of Protein and Plant Gene Research, and Biodynamic Optical Imaging Center (BIOPIC), School of Life Sciences, Peking University, Beijing 100871, China.

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: 20.36 kDa 
• Atom Count: 1,416 
• Modelled Residue Count: 152 
• Deposited Residue Count: 188 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative uncharacterized protein	A	188	Pseudomonas aeruginosa PAO1	Mutation(s): 1  Gene Names: PA1844 EC: 3.4.19.11
UniProt
Find proteins for Q9I2Q1 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Explore Q9I2Q1  Go to UniProtKB:  Q9I2Q1

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MLI	B [auth A]	MALONATE ION C3 H2 O4 OFOBLEOULBTSOW-UHFFFAOYSA-L
GOL	C [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.24 Å
• R-Value Free: 0.192 
• R-Value Work: 0.183 
• R-Value Observed: 0.183 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 38.432	α = 90
b = 62.305	β = 90
c = 73.551	γ = 90

Software Package:

Software Name	Purpose
Blu-Ice	data collection
PHASER	phasing
PHENIX	refinement
HKL-2000	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-06-27 
Deposition Author(s): Zhang, H., Gao, Z.Q., Dong, Y.H.

Revision History  

• Version 1.0: 2012-06-27
  Type: Initial release
  
• Version 1.1: 2013-01-30
  Changes: Database references
• Version 1.2: 2024-04-03
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.3: 2024-11-20
  Changes: Structure summary