8YQY image
Deposition Date 2024-03-20
Release Date 2024-11-06
Last Version Date 2025-06-11
Entry Detail
PDB ID:
8YQY
Keywords:
Title:
ASFV RNA polymerase-M1249L complex complete
Biological Source:
Source Organism:
Method Details:
Experimental Method:
Resolution:
3.68 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase subunit
Chain IDs:A
Chain Length:1450
Number of Molecules:1
Biological Source:African swine fever virus
Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase subunit beta
Chain IDs:B
Chain Length:1242
Number of Molecules:1
Biological Source:African swine fever virus
Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase RPB3-11 homolog
Chain IDs:C
Chain Length:359
Number of Molecules:1
Biological Source:African swine fever virus
Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase RPB5 homolog
Chain IDs:D
Chain Length:205
Number of Molecules:1
Biological Source:African swine fever virus
Polymer Type:polypeptide(L)
Molecule:C147L
Chain IDs:E
Chain Length:147
Number of Molecules:1
Biological Source:African swine fever virus
Polymer Type:polypeptide(L)
Molecule:D339L
Chain IDs:F
Chain Length:339
Number of Molecules:1
Biological Source:African swine fever virus
Polymer Type:polypeptide(L)
Molecule:C122R
Chain IDs:G
Chain Length:105
Number of Molecules:1
Biological Source:African swine fever virus
Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase RPB10 homolog
Chain IDs:H
Chain Length:80
Number of Molecules:1
Biological Source:African swine fever virus
Polymer Type:polypeptide(L)
Molecule:M1249L
Chain IDs:I (auth: J)
Chain Length:1249
Number of Molecules:1
Biological Source:African swine fever virus
Primary Citation
Transcription regulation of African swine fever virus: dual role of M1249L.
Nat Commun 15 10058 10058 (2024)
PMID: 39567541 DOI: 10.1038/s41467-024-54461-1

Abstact

African swine fever virus (ASFV), which poses significant risks to the global economy, encodes a unique host-independent transcription system. This system comprises an eight-subunit RNA polymerase (vRNAP), temporally expressed transcription factors and transcript associated proteins, facilitating cross-species transmission via intermediate host. The protein composition of the virion and the presence of transcription factors in virus genome suggest existence of distinct transcription systems during viral infection. However, the precise mechanisms of transcription regulation remain elusive. Through analyses of dynamic transcriptome, vRNAP-associated components and cell-based assay, the critical role of M1249L in viral transcription regulation has been highlighted. Atomic-resolution structures of vRNAP-M1249L supercomplex, exhibiting a variety of conformations, have uncovered the dual functions of M1249L. During early transcription, M1249L could serve as multiple temporary transcription factors with C-terminal domain acting as a switcher for activation/inactivation, while during late transcription it aids in the packaging of the transcription machinery. The structural and functional characteristics of M1249L underscore its vital roles in ASFV transcription, packaging, and capsid assembly, presenting novel opportunities for therapeutic intervention.

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Primary Citation of related structures