6C54

Ebola nucleoprotein nucleocapsid-like assembly and the asymmetric unit


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.8 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Electron Cryo-microscopy Structure of Ebola Virus Nucleoprotein Reveals a Mechanism for Nucleocapsid-like Assembly.

Su, Z.Wu, C.Shi, L.Luthra, P.Pintilie, G.D.Johnson, B.Porter, J.R.Ge, P.Chen, M.Liu, G.Frederick, T.E.Binning, J.M.Bowman, G.R.Zhou, Z.H.Basler, C.F.Gross, M.L.Leung, D.W.Chiu, W.Amarasinghe, G.K.

(2018) Cell 172: 966-978.e12

  • DOI: 10.1016/j.cell.2018.02.009

  • PubMed Abstract: 
  • Ebola virus nucleoprotein (eNP) assembles into higher-ordered structures that form the viral nucleocapsid (NC) and serve as the scaffold for viral RNA synthesis. However, molecular insights into the NC assembly process are lacking. Using a hybrid app ...

    Ebola virus nucleoprotein (eNP) assembles into higher-ordered structures that form the viral nucleocapsid (NC) and serve as the scaffold for viral RNA synthesis. However, molecular insights into the NC assembly process are lacking. Using a hybrid approach, we characterized the NC-like assembly of eNP, identified novel regulatory elements, and described how these elements impact function. We generated a three-dimensional structure of the eNP NC-like assembly at 5.8 Å using electron cryo-microscopy and identified a new regulatory role for eNP helices α22-α23. Biochemical, biophysical, and mutational analyses revealed that inter-eNP contacts within α22-α23 are critical for viral NC assembly and regulate viral RNA synthesis. These observations suggest that the N terminus and α22-α23 of eNP function as context-dependent regulatory modules (CDRMs). Our current study provides a framework for a structural mechanism for NC-like assembly and a new therapeutic target.


    Related Citations: 
    • An Intrinsically Disordered Peptide from Ebola Virus VP35 Controls Viral RNA Synthesis by Modulating Nucleoprotein-RNA Interactions.
      Leung, D.W.,Borek, D.,Luthra, P.,Binning, J.M.,Anantpadma, M.,Liu, G.,Harvey, I.B.,Su, Z.,Endlich-Frazier, A.,Pan, J.,Shabman, R.S.,Chiu, W.,Davey, R.A.,Otwinowski, Z.,Basler, C.F.,Amarasinghe, G.K.
      (2015) Cell Rep 11: 376


    Organizational Affiliation

    Department of Bioengineering and Department of Microbiology and Immunology, James H. Clark Center, Stanford University, Stanford, CA 94305, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nucleoprotein
A, B
433Zaire ebolavirus (strain Mayinga-76)Mutation(s): 0 
Gene Names: NP
Find proteins for P18272 (Zaire ebolavirus (strain Mayinga-76))
Go to UniProtKB:  P18272
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.8 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesP41GM103832
National Institutes of Health/National Institute of General Medical SciencesUnited StatesP41GM103422
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01GM12400701
National Institutes of Health/National Institute Of Allergy and Infectious DiseasesUnited StatesU19AI109664
National Institutes of Health/National Institute Of Allergy and Infectious DiseasesUnited StatesP01AI120943
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01GM080139
Department of the Defense, Defense Threat Reduction AgencyUnited StatesHDTRA1-16-1-0033

Revision History 

  • Version 1.0: 2018-03-07
    Type: Initial release
  • Version 1.1: 2019-02-20
    Type: Author supporting evidence, Data collection