6JDP

the imm52 family protein TsiT (PA3908) from Pseudomonas aeruginosa


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.601 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural characterization of the Imm52 family protein TsiT in Pseudomonas aeruginosa.

She, Z.Geng, Z.Xu, J.H.Li, Y.H.Dong, Y.H.

(2019) Protein Sci. 28: 971-975

  • DOI: 10.1002/pro.3597

  • PubMed Abstract: 
  • The bacterial type VI secretion system (T6SS) utilizes many toxic effectors to gain advantage over interbacterial competition and eukaryotic host infection. Meanwhile, the cognate immunity proteins of these effectors are employed to protect themselve ...

    The bacterial type VI secretion system (T6SS) utilizes many toxic effectors to gain advantage over interbacterial competition and eukaryotic host infection. Meanwhile, the cognate immunity proteins of these effectors are employed to protect themselves from the virulence. TseT and TsiT form an effector-immunity (E-I) protein pair secreted by T6SS of Pseudomonas aeruginosa. TseT is toxic for other bacteria, whereas TsiT can suppress the virulence of TseT. Here, we report the crystal structure of TsiT at 1.6 Å resolution. TsiT is a typical α + β class protein and belongs to a novel Imm52 protein family of the polymorphic toxin system. Apart from TsiT, only one structure of the Imm52 family proteins is present in the Protein Data Bank (PDB), but that structure is not characterized and shares low sequence identity with TsiT. We characterized the basic features of TsiT structure and identified conserved residues of the Imm52 family proteins according to homology comparison. Our work provided structural information of a new protein family and should aid future functional studies.


    Organizational Affiliation

    Multidiscipline Research Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Imm52 family protein
A
262Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)Mutation(s): 0 
Find proteins for Q9HXA5 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Go to UniProtKB:  Q9HXA5
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.601 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.187 
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 86.960α = 90.00
b = 86.960β = 90.00
c = 81.108γ = 120.00
Software Package:
Software NamePurpose
HKL-3000data scaling
AutoSolphasing
HKL-3000data reduction
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2019-02-02 
  • Released Date: 2019-03-20 
  • Deposition Author(s): She, Z.

Funding OrganizationLocationGrant Number
National Natural Science Foundation of ChinaChina31700651

Revision History 

  • Version 1.0: 2019-03-20
    Type: Initial release
  • Version 1.1: 2019-05-01
    Type: Data collection, Database references