6Z5J

Arrangement of the matrix protein M1 in influenza A/Hong Kong/1/1968 VLPs (HA,NA,M1,M2)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SUBTOMOGRAM AVERAGING 

wwPDB Validation 3D Report Full Report



Literature

The native structure of the assembled matrix protein 1 of influenza A virus.

Peukes, J.Xiong, X.Erlendsson, S.Qu, K.Wan, W.Calder, L.J.Schraidt, O.Kummer, S.Freund, S.M.V.Krausslich, H.G.Briggs, J.A.G.

(2020) Nature 

  • DOI: 10.1038/s41586-020-2696-8
  • Primary Citation of Related Structures:  
    6Z5J, 6Z5L

  • PubMed Abstract: 
  • Influenza A virus causes millions of severe cases of disease during annual epidemics. The most abundant protein in influenza virions is matrix protein 1 (M1), which mediates virus assembly by forming an endoskeleton beneath the virus membrane 1 ...

    Influenza A virus causes millions of severe cases of disease during annual epidemics. The most abundant protein in influenza virions is matrix protein 1 (M1), which mediates virus assembly by forming an endoskeleton beneath the virus membrane 1 . The structure of full-length M1, and how it oligomerizes to mediate the assembly of virions, is unknown. Here we determine the complete structure of assembled M1 within intact virus particles, as well as the structure of M1 oligomers reconstituted in vitro. We find that the C-terminal domain of M1 is disordered in solution but can fold and bind in trans to the N-terminal domain of another M1 monomer, thus polymerizing M1 into linear strands that coat the interior surface of the membrane of the assembling virion. In the M1 polymer, five histidine residues-contributed by three different monomers of M1-form a cluster that can serve as the pH-sensitive disassembly switch after entry into a target cell. These structures therefore reveal mechanisms of influenza virus assembly and disassembly.


    Organizational Affiliation

    Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany. jbriggs@mrc-lmb.cam.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Matrix protein 1ABCDEF252Influenza A virus (A/Puerto Rico/8-9NMC3/1934(H1N1))Mutation(s): 0 
Gene Names: M1M
Find proteins for F0TTD6 (Influenza A virus)
Explore F0TTD6 
Go to UniProtKB:  F0TTD6
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SUBTOMOGRAM AVERAGING 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Research Council (ERC)European UnionERC-CoG-648432
Medical Research Council (MRC, United Kingdom)United KingdomMC_UP_1201/16
German Research Foundation (DFG)Germanyproject number 240245660 - SFB1129

Revision History 

  • Version 1.0: 2020-10-14
    Type: Initial release