6XF8

DLP 5 fold


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 6.50 Å
  • Aggregation State: CELL 
  • Reconstruction Method: SUBTOMOGRAM AVERAGING 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Assembly intermediates of orthoreovirus captured in the cell.

Sutton, G.Sun, D.Fu, X.Kotecha, A.Hecksel, C.W.Clare, D.K.Zhang, P.Stuart, D.I.Boyce, M.

(2020) Nat Commun 11: 4445-4445

  • DOI: 10.1038/s41467-020-18243-9
  • Primary Citation of Related Structures:  
    6XF7, 6XF8, 6ZTY, 6ZTZ, 6ZTS

  • PubMed Abstract: 
  • Traditionally, molecular assembly pathways for viruses are inferred from high resolution structures of purified stable intermediates, low resolution images of cell sections and genetic approaches. Here, we directly visualise an unsuspected 'single shelled' intermediate for a mammalian orthoreovirus in cryo-preserved infected cells, by cryo-electron tomography of cellular lamellae ...

    Traditionally, molecular assembly pathways for viruses are inferred from high resolution structures of purified stable intermediates, low resolution images of cell sections and genetic approaches. Here, we directly visualise an unsuspected 'single shelled' intermediate for a mammalian orthoreovirus in cryo-preserved infected cells, by cryo-electron tomography of cellular lamellae. Particle classification and averaging yields structures to 5.6 Å resolution, sufficient to identify secondary structural elements and produce an atomic model of the intermediate, comprising 120 copies each of protein λ1 and σ2. This λ1 shell is 'collapsed' compared to the mature virions, with molecules pushed inwards at the icosahedral fivefolds by ~100 Å, reminiscent of the first assembly intermediate of certain prokaryotic dsRNA viruses. This supports the supposition that these viruses share a common ancestor, and suggests mechanisms for the assembly of viruses of the Reoviridae. Such methodology holds promise for dissecting the replication cycle of many viruses.


    Related Citations: 
    • Assembly intermediates of orthoreovirus captured in the cell
      Sutton, G., Sun, D.P., Fu, X.F., Kotecha, A., Hecksel, G.W., Clare, D.K., Zhang, P., Stuart, D., Boyce, M.
      () To be published --: --

    Organizational Affiliation

    Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, UK. mark.boyce@strubi.ox.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Outer capsid protein mu-1 FK633Mammalian orthoreovirus 1 LangMutation(s): 0 
Gene Names: M2
Find proteins for P11077 (Reovirus type 1 (strain Lang))
Explore P11077 
Go to UniProtKB:  P11077
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Outer capsid protein sigma-3 GHI365Mammalian orthoreovirus 1 LangMutation(s): 0 
Gene Names: S4
Find proteins for P07939 (Reovirus type 1 (strain Lang))
Explore P07939 
Go to UniProtKB:  P07939
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Inner capsid protein sigma-2 E417Mammalian orthoreovirus 1 LangMutation(s): 0 
Gene Names: S2
Find proteins for P11314 (Reovirus type 1 (strain Lang))
Explore P11314 
Go to UniProtKB:  P11314
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Inner capsid protein lambda-1 BC1059Mammalian orthoreovirus 1 LangMutation(s): 0 
Gene Names: L3
EC: 3.6.4.13
Find proteins for Q9WAB2 (Reovirus type 1 (strain Lang))
Explore Q9WAB2 
Go to UniProtKB:  Q9WAB2
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
mRNA (guanine-N(7)-)-methyltransferase A1288Mammalian orthoreovirus 1 LangMutation(s): 0 
Gene Names: L2
EC: 2.1.1.56 (PDB Primary Data), 2.7.7.50 (PDB Primary Data)
Find proteins for Q91RA5 (Reovirus type 1 (strain Lang))
Explore Q91RA5 
Go to UniProtKB:  Q91RA5
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 6.50 Å
  • Aggregation State: CELL 
  • Reconstruction Method: SUBTOMOGRAM AVERAGING 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (MRC, United Kingdom)United KingdomMR/N00065X/1
Wellcome TrustUnited Kingdom206422/Z/17/Z
National Institutes of Health/National Institute of Biomedical Imaging and Bioengineering (NIH/NIBIB)United StatesGM082251

Revision History  (Full details and data files)

  • Version 1.0: 2020-09-23
    Type: Initial release