ISDA: 8XIF

Deposition Date 2023-12-19

Release Date 2024-05-01

Last Version Date 2024-07-10

Entry Detail

PDB ID:

8XIF

Keywords:

REPLICATION

Title:

The crystal structure of the AEP domain of VACV D5

Biological Source:

Source Organism(s):

Vaccinia virus (Taxon ID: 10245)

Expression System(s):

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.39 Å

R-Value Free:

0.19

R-Value Work:

0.17

R-Value Observed:

0.18

Space Group:

P 21 21 21

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Uncoating factor OPG117
Gene (Uniprot):OPG117
Chain IDs:A
Chain Length:224
Number of Molecules:1
Biological Source:Vaccinia virus

UniProt ID:P04305

Ligand Molecules

PPV

Primary Citation

Structural and functional insights into the helicase protein E5 of Mpox virus.

Zhang, W, Liu, Y, Yang, M, Yang, J, Shao, Z, Gao, Y, Jiang, X, Cui, R, Zhang, Y, Zhao, X, Shao, Q, Cao, C, Li, H, Li, L, Liu, H, Gao, H, Gan, J.Show

Cell Discov 10 67 67 (2024)

PMID: 38914567 DOI: 10.1038/s41421-024-00680-1

Abstact

Mpox virus (MPXV) can cause mpox in humans. Due to its quick and wide spread in the past two years, mpox has turned into a significant public health concern. Helicase E5 is a multi-domain protein; its primer synthesis and DNA unwinding activity are required for genome uncoating and DNA replication of MPXV. However, the in vitro DNA unwinding activity has never been demonstrated. Here, we report the structural and biochemical studies of MPXV E5, showing that the full-length protein adopts an auto-inhibited conformation. Truncation of the N-terminus can recover the in vitro unwinding activity of E5 towards the forked DNA. Further structural analysis reveals that MPXV E5 shares a conserved mechanism in DNA unwinding and primer synthesis with the homologous proteins. These findings not only advance our understanding on the function of MPXV E5, but also provide a solid basis for the development of anti-poxvirus drugs.

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Primary Citation of related structures

Abstact

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