Structure of Phosphoprotein Tetramer from mumps virus

Experimental Data Snapshot

  • Resolution: 3.63 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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Structures of the mumps virus polymerase complex via cryo-electron microscopy.

Li, T.Liu, M.Gu, Z.Su, X.Liu, Y.Lin, J.Zhang, Y.Shen, Q.T.

(2024) Nat Commun 15: 4189-4189

  • DOI: https://doi.org/10.1038/s41467-024-48389-9
  • Primary Citation of Related Structures:  
    8IZL, 8X01, 8YXL, 8YXM, 8YXO, 8YXP, 8YXR

  • PubMed Abstract: 

    The viral polymerase complex, comprising the large protein (L) and phosphoprotein (P), is crucial for both genome replication and transcription in non-segmented negative-strand RNA viruses (nsNSVs), while structures corresponding to these activities remain obscure. Here, we resolved two L-P complex conformations from the mumps virus (MuV), a typical member of nsNSVs, via cryogenic-electron microscopy. One conformation presents all five domains of L forming a continuous RNA tunnel to the methyltransferase domain (MTase), preferably as a transcription state. The other conformation has the appendage averaged out, which is inaccessible to MTase. In both conformations, parallel P tetramers are revealed around MuV L, which, together with structures of other nsNSVs, demonstrates the diverse origins of the L-binding X domain of P. Our study links varying structures of nsNSV polymerase complexes with genome replication and transcription and points to a sliding model for polymerase complexes to advance along the RNA templates.

  • Organizational Affiliation

    School of Life Sciences, Department of Chemical Biology, Southern University of Science and Technology, Shenzhen, 518055, China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PhosphoproteinA [auth B],
B [auth C],
C [auth D],
D [auth E]
391Mumps orthorubulavirusMutation(s): 0 
Find proteins for C0JJ97 (Mumps orthorubulavirus)
Explore C0JJ97 
Go to UniProtKB:  C0JJ97
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupC0JJ97
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 3.63 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Science Foundation (NSF, China)China--

Revision History  (Full details and data files)

  • Version 1.0: 2024-06-05
    Type: Initial release