4BBL

Cryo-electron microscopy reconstruction of the helical part of influenza A virus ribonucleoprotein isolated from virions.


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 18.0 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

The Structure of Native Influenza Virion Ribonucleoproteins

Arranz, R.Coloma, R.Chichon, F.J.Conesa, J.J.Carrascosa, J.L.Valpuesta, J.M.Ortin, J.Martin-Benito, J.

(2012) Science 338: 1634

  • DOI: https://doi.org/10.1126/science.1228172
  • Primary Citation of Related Structures:  
    4BBL

  • PubMed Abstract: 

    The influenza viruses cause annual epidemics of respiratory disease and occasional pandemics, which constitute a major public-health issue. The segmented negative-stranded RNAs are associated with the polymerase complex and nucleoprotein (NP), forming ribonucleoproteins (RNPs), which are responsible for virus transcription and replication. We describe the structure of native RNPs derived from virions. They show a double-helical conformation in which two NP strands of opposite polarity are associated with each other along the helix. Both strands are connected by a short loop at one end of the particle and interact with the polymerase complex at the other end. This structure will be relevant for unraveling the mechanisms of nuclear import of parental virus RNPs, their transcription and replication, and the encapsidation of progeny RNPs into virions.


  • Organizational Affiliation

    Department of Macromolecular Structure, Centro Nacional de Biotecnología [Consejo Superior de Investigaciones Cienfícas (CSIC)], Madrid, Spain.


Macromolecules

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
NUCLEOPROTEIN
A, B, C, D, E
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X
499Influenza A virusMutation(s): 0 
UniProt
Find proteins for Q1K9H2 (Influenza A virus (strain A/Wilson-Smith/1933 H1N1))
Explore Q1K9H2 
Go to UniProtKB:  Q1K9H2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ1K9H2
Sequence Annotations
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  • Reference Sequence
Find similar nucleic acids by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains LengthOrganismImage
RNA
Y, Z
308Influenza A virus
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 18.0 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONIHRSR
RECONSTRUCTIONSPIDER
RECONSTRUCTIONXmipp

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-12-05
    Type: Initial release
  • Version 1.1: 2013-01-09
    Changes: Database references
  • Version 1.2: 2015-09-16
    Changes: Source and taxonomy, Structure summary
  • Version 1.3: 2017-08-23
    Changes: Data collection
  • Version 1.4: 2024-05-08
    Changes: Data collection, Database references, Refinement description