8ENV

In situ cryo-EM structure of Pseudomonas phage E217 tail baseplate in C6 map


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.42 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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This is version 1.1 of the entry. See complete history


Literature

High-resolution cryo-EM structure of the Pseudomonas bacteriophage E217.

Li, F.Hou, C.D.Lokareddy, R.K.Yang, R.Forti, F.Briani, F.Cingolani, G.

(2023) Nat Commun 14: 4052-4052

  • DOI: https://doi.org/10.1038/s41467-023-39756-z
  • Primary Citation of Related Structures:  
    8ENV, 8EON, 8FRS, 8FUV, 8FVG, 8FVH

  • PubMed Abstract: 

    E217 is a Pseudomonas phage used in an experimental cocktail to eradicate cystic fibrosis-associated Pseudomonas aeruginosa. Here, we describe the structure of the whole E217 virion before and after DNA ejection at 3.1 Å and 4.5 Å resolution, respectively, determined using cryogenic electron microscopy (cryo-EM). We identify and build de novo structures for 19 unique E217 gene products, resolve the tail genome-ejection machine in both extended and contracted states, and decipher the complete architecture of the baseplate formed by 66 polypeptide chains. We also determine that E217 recognizes the host O-antigen as a receptor, and we resolve the N-terminal portion of the O-antigen-binding tail fiber. We propose that E217 design principles presented in this paper are conserved across PB1-like Myoviridae phages of the Pbunavirus genus that encode a ~1.4 MDa baseplate, dramatically smaller than the coliphage T4.


  • Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Thomas Jefferson University, 1020 Locust Street, Philadelphia, PA, 19107, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Sheath protein gp31
A, B, C, D, E
A, B, C, D, E, F
504Pseudomonas phage vB_PaeM_E217Mutation(s): 0 
UniProt
Find proteins for A0A2K8IA62 (Pseudomonas phage vB_PaeM_E217)
Explore A0A2K8IA62 
Go to UniProtKB:  A0A2K8IA62
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UniProt GroupA0A2K8IA62
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Structural protein gp33102Pseudomonas phage vB_PaeM_E217Mutation(s): 0 
UniProt
Find proteins for A0A2K8ICG6 (Pseudomonas phage vB_PaeM_E217)
Explore A0A2K8ICG6 
Go to UniProtKB:  A0A2K8ICG6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A2K8ICG6
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Sheath initiator gp34108Pseudomonas phage vB_PaeM_E217Mutation(s): 0 
UniProt
Find proteins for A0A2K8HLW6 (Pseudomonas phage vB_PaeM_E217)
Explore A0A2K8HLW6 
Go to UniProtKB:  A0A2K8HLW6
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UniProt GroupA0A2K8HLW6
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Ripcord gp36152Pseudomonas phage vB_PaeM_E217Mutation(s): 0 
UniProt
Find proteins for A0A2K8I0V8 (Pseudomonas phage vB_PaeM_E217)
Explore A0A2K8I0V8 
Go to UniProtKB:  A0A2K8I0V8
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UniProt GroupA0A2K8I0V8
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Baseplate_J domain-containing protein gp44417Pseudomonas phage vB_PaeM_E217Mutation(s): 0 
UniProt
Find proteins for A0A2K8HLX5 (Pseudomonas phage vB_PaeM_E217)
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Go to UniProtKB:  A0A2K8HLX5
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UniProt GroupA0A2K8HLX5
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Structural protein gp45500Pseudomonas phage vB_PaeM_E217Mutation(s): 0 
UniProt
Find proteins for A0A2K8HL77 (Pseudomonas phage vB_PaeM_E217)
Explore A0A2K8HL77 
Go to UniProtKB:  A0A2K8HL77
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UniProt GroupA0A2K8HL77
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.42 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Cancer Institute (NIH/NCI)United StatesGM140733

Revision History  (Full details and data files)

  • Version 1.0: 2023-07-26
    Type: Initial release
  • Version 1.1: 2024-06-19
    Changes: Data collection