5HX2

In vitro assembled star-shaped hubless T4 baseplate


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.6 of the entry. See complete history


Literature

Role of bacteriophage T4 baseplate in regulating assembly and infection.

Yap, M.L.Klose, T.Arisaka, F.Speir, J.A.Veesler, D.Fokine, A.Rossmann, M.G.

(2016) Proc Natl Acad Sci U S A 113: 2654-2659

  • DOI: 10.1073/pnas.1601654113
  • Primary Citation of Related Structures:  
    5HX2

  • PubMed Abstract: 
  • Bacteriophage T4 consists of a head for protecting its genome and a sheathed tail for inserting its genome into a host. The tail terminates with a multiprotein baseplate that changes its conformation from a "high-energy" dome-shaped to a "low-energy" star-shaped structure during infection ...

    Bacteriophage T4 consists of a head for protecting its genome and a sheathed tail for inserting its genome into a host. The tail terminates with a multiprotein baseplate that changes its conformation from a "high-energy" dome-shaped to a "low-energy" star-shaped structure during infection. Although these two structures represent different minima in the total energy landscape of the baseplate assembly, as the dome-shaped structure readily changes to the star-shaped structure when the virus infects a host bacterium, the dome-shaped structure must have more energy than the star-shaped structure. Here we describe the electron microscopy structure of a 3.3-MDa in vitro-assembled star-shaped baseplate with a resolution of 3.8 Å. This structure, together with other genetic and structural data, shows why the high-energy baseplate is formed in the presence of the central hub and how the baseplate changes to the low-energy structure, via two steps during infection. Thus, the presence of the central hub is required to initiate the assembly of metastable, high-energy structures. If the high-energy structure is formed and stabilized faster than the low-energy structure, there will be insufficient components to assemble the low-energy structure.


    Organizational Affiliation

    Department of Biological Sciences, Purdue University, West Lafayette, IN 47907; mr@purdue.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp7A1032Escherichia virus T4Mutation(s): 0 
Gene Names: 7
Find proteins for P19061 (Enterobacteria phage T4)
Explore P19061 
Go to UniProtKB:  P19061
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp8B, C334Escherichia virus T4Mutation(s): 0 
Gene Names: 8
Find proteins for P19062 (Enterobacteria phage T4)
Explore P19062 
Go to UniProtKB:  P19062
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp6D, E660Escherichia virus T4Mutation(s): 0 
Gene Names: 6
Find proteins for P19060 (Enterobacteria phage T4)
Explore P19060 
Go to UniProtKB:  P19060
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp53F196Escherichia virus T4Mutation(s): 0 
Gene Names: 53
Find proteins for P16011 (Enterobacteria phage T4)
Explore P16011 
Go to UniProtKB:  P16011
Protein Feature View
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp10G, H, I602Escherichia virus T4Mutation(s): 0 
Gene Names: 10
Find proteins for P10928 (Enterobacteria phage T4)
Explore P10928 
Go to UniProtKB:  P10928
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesAI081726

Revision History  (Full details and data files)

  • Version 1.0: 2016-03-02
    Type: Initial release
  • Version 1.1: 2016-03-16
    Changes: Database references
  • Version 1.2: 2016-03-23
    Changes: Database references
  • Version 1.3: 2017-07-26
    Changes: Author supporting evidence, Data collection
  • Version 1.4: 2018-07-18
    Changes: Data collection
  • Version 1.5: 2019-12-11
    Changes: Author supporting evidence
  • Version 1.6: 2019-12-18
    Changes: Other