6CX1

Cryo-EM structure of Seneca Valley Virus-Anthrax Toxin Receptor 1 complex


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 1.3 of the entry. See complete history


Literature

Structural basis for anthrax toxin receptor 1 recognition by Seneca Valley Virus.

Jayawardena, N.Burga, L.N.Easingwood, R.A.Takizawa, Y.Wolf, M.Bostina, M.

(2018) Proc Natl Acad Sci U S A 115: E10934-E10940

  • DOI: 10.1073/pnas.1810664115
  • Primary Citation of Related Structures:  
    6CX1

  • PubMed Abstract: 
  • Recently, the use of oncolytic viruses in cancer therapy has become a realistic therapeutic option. Seneca Valley Virus (SVV) is a newly discovered picornavirus, which has earned a significant reputation as a potent oncolytic agent. Anthrax toxin receptor 1 (ANTXR1), one of the cellular receptors for the protective antigen secreted by Bacillus anthracis , has been identified as the high-affinity cellular receptor for SVV ...

    Recently, the use of oncolytic viruses in cancer therapy has become a realistic therapeutic option. Seneca Valley Virus (SVV) is a newly discovered picornavirus, which has earned a significant reputation as a potent oncolytic agent. Anthrax toxin receptor 1 (ANTXR1), one of the cellular receptors for the protective antigen secreted by Bacillus anthracis , has been identified as the high-affinity cellular receptor for SVV. Here, we report the structure of the SVV-ANTXR1 complex determined by single-particle cryo-electron microscopy analysis at near-atomic resolution. This is an example of a shared receptor structure between a mammalian virus and a bacterial toxin. Our structure shows that ANTXR1 decorates the outer surface of the SVV capsid and interacts with the surface-exposed BC loop and loop II of VP1, "the puff" of VP2 and "the knob" of VP3. Comparison of the receptor-bound capsid structure with the native capsid structure reveals that receptor binding induces minor conformational changes in SVV capsid structure, suggesting the role of ANTXR1 as an attachment receptor. Furthermore, our results demonstrate that the capsid footprint on the receptor is not conserved in anthrax toxin receptor 2 (ANTXR2), thereby providing a molecular mechanism for explaining the exquisite selectivity of SVV for ANTXR1.


    Organizational Affiliation

    Otago Micro and Nano Imaging Centre, University of Otago, 9016 Dunedin, New Zealand.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Anthrax toxin receptor 1A [auth E]182Homo sapiensMutation(s): 0 
Gene Names: ANTXR1ATRTEM8
Find proteins for Q9H6X2 (Homo sapiens)
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Go to UniProtKB:  Q9H6X2
NIH Common Fund Data Resources
PHAROS:  Q9H6X2
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Capsid protein VP1B [auth A]258Senecavirus AMutation(s): 0 
EC: 3.6.4.13 (UniProt), 3.4.19.12 (UniProt), 3.4.22.28 (UniProt), 2.7.7.48 (UniProt)
Find proteins for Q155Z9 (Seneca Valley virus (isolate -/United States/SSV-001/2002))
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Capsid protein VP2C268Senecavirus AMutation(s): 0 
EC: 3.6.4.13 (UniProt), 3.4.19.12 (UniProt), 3.4.22.28 (UniProt), 2.7.7.48 (UniProt)
Find proteins for Q155Z9 (Seneca Valley virus (isolate -/United States/SSV-001/2002))
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Capsid protein VP3D [auth B]238Senecavirus AMutation(s): 0 
EC: 3.6.4.13 (UniProt), 3.4.19.12 (UniProt), 3.4.22.28 (UniProt), 2.7.7.48 (UniProt)
Find proteins for Q155Z9 (Seneca Valley virus (isolate -/United States/SSV-001/2002))
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Capsid protein VP4E [auth D]58Senecavirus AMutation(s): 0 
EC: 3.6.4.13 (UniProt), 3.4.19.12 (UniProt), 3.4.22.28 (UniProt), 2.7.7.48 (UniProt)
Find proteins for Q155Z9 (Seneca Valley virus (isolate -/United States/SSV-001/2002))
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Go to UniProtKB:  Q155Z9
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 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-10-31
    Type: Initial release
  • Version 1.1: 2018-11-14
    Changes: Data collection, Derived calculations
  • Version 1.2: 2018-11-21
    Changes: Data collection, Database references
  • Version 1.3: 2018-11-28
    Changes: Data collection, Database references