8HG1

The structure of MPXV polymerase holoenzyme in replicating state


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of monkeypox virus DNA polymerase holoenzyme.

Peng, Q.Xie, Y.Kuai, L.Wang, H.Qi, J.Gao, G.F.Shi, Y.

(2023) Science 379: 100-105

  • DOI: https://doi.org/10.1126/science.ade6360
  • Primary Citation of Related Structures:  
    8HG1

  • PubMed Abstract: 

    The World Health Organization declared mpox (or monkeypox) a public health emergency of international concern in July 2022, and prophylactic and therapeutic measures are in urgent need. The monkeypox virus (MPXV) has its own DNA polymerase F8, together with the processive cofactors A22 and E4, constituting the polymerase holoenzyme for genome replication. Here, we determined the holoenzyme structure in complex with DNA using cryo-electron microscopy at the global resolution of ~2.8 angstroms. The holoenzyme possesses an architecture that suggests a "forward sliding clamp" processivity mechanism for viral DNA replication. MPXV polymerase has a DNA binding mode similar to that of other B-family DNA polymerases from different species. These findings reveal the mechanism of the MPXV genome replication and may guide the development of anti-poxvirus drugs.


  • Organizational Affiliation

    CAS Key Laboratory of Pathogen Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.


Macromolecules

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DNA polymerase1,031Monkeypox virusMutation(s): 0 
Gene Names: 
EC: 2.7.7.7
UniProt
Find proteins for A0A7H0DN44 (Monkeypox virus)
Explore A0A7H0DN44 
Go to UniProtKB:  A0A7H0DN44
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UniProt GroupA0A7H0DN44
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
E4R218Monkeypox virusMutation(s): 0 
Gene Names: 
EC: 3.2.2.27
UniProt
Find proteins for M1LL92 (Monkeypox virus)
Explore M1LL92 
Go to UniProtKB:  M1LL92
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UniProt GroupM1LL92
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
DNA polymerase processivity factor component A20426Monkeypox virusMutation(s): 0 
Gene Names: 
UniProt
Find proteins for A0A7H0DNC0 (Monkeypox virus)
Explore A0A7H0DNC0 
Go to UniProtKB:  A0A7H0DNC0
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UniProt GroupA0A7H0DNC0
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  • Reference Sequence

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Entity ID: 4
MoleculeChains LengthOrganismImage
DNA (25-MER)D [auth P]25Monkeypox virus
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Entity ID: 5
MoleculeChains LengthOrganismImage
DNA (38-MER)E [auth T]38Monkeypox virus
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China--

Revision History  (Full details and data files)

  • Version 1.0: 2022-12-21
    Type: Initial release
  • Version 1.1: 2022-12-28
    Changes: Database references
  • Version 1.2: 2023-01-18
    Changes: Database references
  • Version 1.3: 2024-05-29
    Changes: Data collection