ISDA: 8XJ8

Deposition Date 2023-12-20

Release Date 2024-05-01

Last Version Date 2024-07-03

Entry Detail

PDB ID:

8XJ8

Keywords:

REPLICATION

Title:

The Cryo-EM structure of MPXV E5 C-terminal in complex with DNA

Biological Source:

Source Organism:

Monkeypox virus (Taxon ID: 10244)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

2.67 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

Download Validation Report

Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Monkeypox virus E5
Gene (Uniprot):OPG117
Chain IDs:B (auth: A), C (auth: B), D (auth: C), E (auth: D), F (auth: E), G (auth: F)
Chain Length:463
Number of Molecules:6
Biological Source:Monkeypox virus

UniProt ID:A0A7H0DN89 Pfam ID:PF08706, PF03288

Polymer Type:polydeoxyribonucleotide
Molecule:DNA (70-MER)
Chain IDs:A (auth: X)
Chain Length:70
Number of Molecules:1
Biological Source:Monkeypox virus

Ligand Molecules

ANP

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.

Legend

Protein

Chemical

Disease

Primary Citation of related structures