4ZV0

Structure of Tse6 in complex with Tsi6


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.401 Å
  • R-Value Free: 0.164 
  • R-Value Work: 0.146 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

An Interbacterial NAD(P)(+) Glycohydrolase Toxin Requires Elongation Factor Tu for Delivery to Target Cells.

Whitney, J.C.Quentin, D.Sawai, S.LeRoux, M.Harding, B.N.Ledvina, H.E.Tran, B.Q.Robinson, H.Goo, Y.A.Goodlett, D.R.Raunser, S.Mougous, J.D.

(2015) Cell 163: 607-619

  • DOI: 10.1016/j.cell.2015.09.027
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Type VI secretion (T6S) influences the composition of microbial communities by catalyzing the delivery of toxins between adjacent bacterial cells. Here, we demonstrate that a T6S integral membrane toxin from Pseudomonas aeruginosa, Tse6, acts on targ ...

    Type VI secretion (T6S) influences the composition of microbial communities by catalyzing the delivery of toxins between adjacent bacterial cells. Here, we demonstrate that a T6S integral membrane toxin from Pseudomonas aeruginosa, Tse6, acts on target cells by degrading the universally essential dinucleotides NAD(+) and NADP(+). Structural analyses of Tse6 show that it resembles mono-ADP-ribosyltransferase proteins, such as diphtheria toxin, with the exception of a unique loop that both excludes proteinaceous ADP-ribose acceptors and contributes to hydrolysis. We find that entry of Tse6 into target cells requires its binding to an essential housekeeping protein, translation elongation factor Tu (EF-Tu). These proteins participate in a larger assembly that additionally directs toxin export and provides chaperone activity. Visualization of this complex by electron microscopy defines the architecture of a toxin-loaded T6S apparatus and provides mechanistic insight into intercellular membrane protein delivery between bacteria.


    Organizational Affiliation

    Department of Microbiology, University of Washington, Seattle, WA 98195, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
antibacterial effector secreted protein (type VI secretion system)
A
163Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)Mutation(s): 0 
Find proteins for Q9I739 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Go to UniProtKB:  Q9I739
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Tse6-binding/Tse6 immunity protein
B
94Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)Mutation(s): 0 
Find proteins for Q9I740 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Go to UniProtKB:  Q9I740
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IOD
Query on IOD

Download SDF File 
Download CCD File 
A, B
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.401 Å
  • R-Value Free: 0.164 
  • R-Value Work: 0.146 
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 83.209α = 90.00
b = 83.209β = 90.00
c = 83.758γ = 120.00
Software Package:
Software NamePurpose
PHENIXphasing
HKL-2000data scaling
HKL-2000data reduction
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious DiseasesUnited StatesAI080609
Defence Threat Reduction AgencyUnited StatesHDTRA-1-13-014

Revision History 

  • Version 1.0: 2015-11-11
    Type: Initial release
  • Version 1.1: 2017-09-20
    Type: Author supporting evidence, Derived calculations