8C4T

Hantaan virus polymerase bound to its 5' viral RNA


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.23 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structures of active Hantaan virus polymerase uncover the mechanisms of Hantaviridae genome replication.

Durieux Trouilleton, Q.Barata-Garcia, S.Arragain, B.Reguera, J.Malet, H.

(2023) Nat Commun 14: 2954-2954

  • DOI: https://doi.org/10.1038/s41467-023-38555-w
  • Primary Citation of Related Structures:  
    8C4S, 8C4T, 8C4U, 8C4V

  • PubMed Abstract: 

    Hantaviruses are causing life-threatening zoonotic infections in humans. Their tripartite negative-stranded RNA genome is replicated by the multi-functional viral RNA-dependent RNA-polymerase. Here we describe the structure of the Hantaan virus polymerase core and establish conditions for in vitro replication activity. The apo structure adopts an inactive conformation that involves substantial folding rearrangement of polymerase motifs. Binding of the 5' viral RNA promoter triggers Hantaan virus polymerase reorganization and activation. It induces the recruitment of the 3' viral RNA towards the polymerase active site for prime-and-realign initiation. The elongation structure reveals the formation of a template/product duplex in the active site cavity concomitant with polymerase core widening and the opening of a 3' viral RNA secondary binding site. Altogether, these elements reveal the molecular specificities of Hantaviridae polymerase structure and uncover the mechanisms underlying replication. They provide a solid framework for future development of antivirals against this group of emerging pathogens.


  • Organizational Affiliation

    Univ. Grenoble Alpes, CNRS, CEA, IBS, F-38000, Grenoble, France.


Macromolecules

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
RNA-directed RNA polymerase L2,173Hantaan virus 76-118Mutation(s): 1 
EC: 2.7.7.48 (PDB Primary Data), 3.1 (PDB Primary Data)
UniProt
Find proteins for P23456 (Hantaan virus (strain 76-118))
Explore P23456 
Go to UniProtKB:  P23456
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP23456
Sequence Annotations
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  • Reference Sequence

Find similar nucleic acids by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains LengthOrganismImage
RNA (5'-R(P*UP*AP*GP*UP*AP*GP*UP*AP*GP*AP*CP*A)-3')B [auth C]20Hantaan virus 76-118
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download Ideal Coordinates CCD File 
C [auth A]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.23 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION4.0
MODEL REFINEMENTPHENIX1.20.1

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Agence Nationale de la Recherche (ANR)FranceANR-19-CE11-0024

Revision History  (Full details and data files)

  • Version 1.0: 2023-06-07
    Type: Initial release
  • Version 1.1: 2024-07-24
    Changes: Data collection