8TUX | pdb_00008tux

Capsid of mature PP7 virion with 3'end region of PP7 genomic RNA

  • Classification: VIRAL PROTEIN
  • Organism(s): Pseudomonas phage PP7
  • Mutation(s): Yes 

  • Deposited: 2023-08-17 Released: 2024-03-13 
  • Deposition Author(s): Thongchol, J., Zhang, J., Zeng, L.
  • Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID), National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), National Science Foundation (NSF, United States), Other private

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Removal of Pseudomonas type IV pili by a small RNA virus.

Thongchol, J.Yu, Z.Harb, L.Lin, Y.Koch, M.Theodore, M.Narsaria, U.Shaevitz, J.Gitai, Z.Wu, Y.Zhang, J.Zeng, L.

(2024) Science 384: eadl0635-eadl0635

  • DOI: https://doi.org/10.1126/science.adl0635
  • Primary Citation of Related Structures:  
    8TUM, 8TUW, 8TUX

  • PubMed Abstract: 

    The retractile type IV pilus (T4P) is important for virulence of the opportunistic human pathogen Pseudomonas aeruginosa . The single-stranded RNA (ssRNA) phage PP7 binds to T4P and is brought to the cell surface through pilus retraction. Using fluorescence microscopy, we discovered that PP7 detaches T4P, which impairs cell motility and restricts the pathogen's virulence. Using cryo-electron microscopy, mutagenesis, optical trapping, and Langevin dynamics simulation, we resolved the structure of PP7, T4P, and the PP7/T4P complex and showed that T4P detachment is driven by the affinity between the phage maturation protein and its bound pilin, plus the pilus retraction force and speed, and pilus bending. Pilus detachment may be widespread among other ssRNA phages and their retractile pilus systems and offers new prospects for antibacterial prophylaxis and therapeutics.


  • Organizational Affiliation

    Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA.


Macromolecules

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Maturation protein AB [auth m],
C [auth M]
448Pseudomonas phage PP7Mutation(s): 2 
UniProt
Find proteins for Q38061 (Pseudomonas phage PP7)
Explore Q38061 
Go to UniProtKB:  Q38061
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ38061
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Capsid protein127Pseudomonas phage PP7Mutation(s): 0 
UniProt
Find proteins for P03630 (Pseudomonas phage PP7)
Explore P03630 
Go to UniProtKB:  P03630
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03630
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesR21AI156846
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR01GM141659
National Science Foundation (NSF, United States)United StatesMCB-1902392
Other privateUnited StatesTexas A and M University T3
Other privateUnited StatesTexas A and M University X-grants
Other privateUnited StatesTexas A and M University, Center for phage technology grant
National Science Foundation (NSF, United States)United StatesPHY-1734030

Revision History  (Full details and data files)

  • Version 1.0: 2024-03-13
    Type: Initial release
  • Version 1.1: 2024-04-17
    Changes: Database references
  • Version 1.2: 2024-10-30
    Changes: Structure summary