5IV5

Cryo-electron microscopy structure of the hexagonal pre-attachment T4 baseplate-tail tube complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.11 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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This is version 1.4 of the entry. See complete history


Literature

Structure of the T4 baseplate and its function in triggering sheath contraction.

Taylor, N.M.Prokhorov, N.S.Guerrero-Ferreira, R.C.Shneider, M.M.Browning, C.Goldie, K.N.Stahlberg, H.Leiman, P.G.

(2016) Nature 533: 346-352

  • DOI: 10.1038/nature17971
  • Primary Citation of Related Structures:  
    5IV5, 5IV7, 5IW9

  • PubMed Abstract: 
  • Several systems, including contractile tail bacteriophages, the type VI secretion system and R-type pyocins, use a multiprotein tubular apparatus to attach to and penetrate host cell membranes. This macromolecular machine resembles a stretched, coiled spring (or sheath) wound around a rigid tube with a spike-shaped protein at its tip ...

    Several systems, including contractile tail bacteriophages, the type VI secretion system and R-type pyocins, use a multiprotein tubular apparatus to attach to and penetrate host cell membranes. This macromolecular machine resembles a stretched, coiled spring (or sheath) wound around a rigid tube with a spike-shaped protein at its tip. A baseplate structure, which is arguably the most complex part of this assembly, relays the contraction signal to the sheath. Here we present the atomic structure of the approximately 6-megadalton bacteriophage T4 baseplate in its pre- and post-host attachment states and explain the events that lead to sheath contraction in atomic detail. We establish the identity and function of a minimal set of components that is conserved in all contractile injection systems and show that the triggering mechanism is universally conserved.


    Organizational Affiliation

    École Polytechnique Fédérale de Lausanne (EPFL), BSP-415, 1015 Lausanne, Switzerland.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp6ABBHBIEAEBGDGEABBHBIEAEBGDGEXYuv
660Escherichia virus T4Mutation(s): 0 
Gene Names: 6
Find proteins for P19060 (Enterobacteria phage T4)
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Go to UniProtKB:  P19060
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp7 BJCECGFZw1032Escherichia virus T4Mutation(s): 0 
Gene Names: 7
Find proteins for P19061 (Enterobacteria phage T4)
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp8CACBDEEDEEGGGHCACBDEEDEEGGGHabxy
334Escherichia virus T4Mutation(s): 0 
Gene Names: 8
Find proteins for P19062 (Enterobacteria phage T4)
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp9AAABCCCDCEEFEGEHAAABCCCDCEEFEGEHFGGIGJHHAcdez
288Escherichia virus T4Mutation(s): 0 
Gene Names: 9
Find proteins for P10927 (Enterobacteria phage T4)
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp10ACADAECFCGCHEIEJACADAECFCGCHEIEJFAHBHCHDIJKfgh
602Escherichia virus T4Mutation(s): 0 
Gene Names: 10
Find proteins for P10928 (Enterobacteria phage T4)
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp11AFAGAHCICJDAFBFCAFAGAHCICJDAFBFCFDHEHFHGLMNijk
219Escherichia virus T4Mutation(s): 0 
Gene Names: 11
Find proteins for P10929 (Enterobacteria phage T4)
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
Short tail fiber protein gp12AIAJBADBDCDDFEFFAIAJBADBDCDDFEFFFGHHHIHJOPQlmn
527Escherichia virus T4Mutation(s): 0 
Gene Names: 12
Find proteins for P10930 (Enterobacteria phage T4)
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
Tail tube protein gp19BBBCDEDFFHFIIAIBBBBCDEDFFHFIIAIBRSop
163Escherichia virus T4Mutation(s): 0 
Gene Names: 19
Find proteins for P13333 (Enterobacteria phage T4)
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp25 BDDGFJICTq132Escherichia virus T4Mutation(s): 0 
Gene Names: 25
Find proteins for P09425 (Enterobacteria phage T4)
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate tail-tube protein gp48 BEDHGAIDUr364Escherichia virus T4Mutation(s): 0 
Gene Names: 48
Find proteins for P13339 (Enterobacteria phage T4)
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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate wedge protein gp53 BFDIGBIEVs196Escherichia virus T4Mutation(s): 0 
Gene Names: 53
Find proteins for P16011 (Enterobacteria phage T4)
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate tail-tube protein gp54 BGDJGCIFWt320Escherichia virus T4Mutation(s): 0 
Gene Names: 54
Find proteins for P13341 (Enterobacteria phage T4)
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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetailsImage
Peptidoglycan hydrolase gp5 YAYBYC575Escherichia virus T4Mutation(s): 0 
Gene Names: 5
EC: 3.2.1.17
Find proteins for P16009 (Enterobacteria phage T4)
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetailsImage
Baseplate hub protein gp27 YDYEYF391Escherichia virus T4Mutation(s): 0 
Gene Names: 27
Find proteins for P17172 (Enterobacteria phage T4)
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Entity ID: 15
MoleculeChainsSequence LengthOrganismDetailsImage
Uncharacterized 10.2 kDa protein in segC-Gp6 intergenic region ZA97Escherichia virus T4Mutation(s): 0 
Gene Names: 5.4y08B
Find proteins for P39234 (Enterobacteria phage T4)
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.11 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-05-18
    Type: Initial release
  • Version 1.1: 2016-05-25
    Changes: Database references
  • Version 1.2: 2016-06-08
    Changes: Database references
  • Version 1.3: 2017-08-30
    Changes: Advisory, Data collection
  • Version 1.4: 2018-02-07
    Changes: Data collection