7LV8 image
Deposition Date 2021-02-24
Release Date 2021-05-05
Last Version Date 2024-10-09
Entry Detail
PDB ID:
7LV8
Keywords:
STRUCTURAL PROTEIN/DNA
Title:
Structure of the Marseillevirus nucleosome
Biological Source:
Source Organism:
Marseillevirus marseillevirus (Taxon ID: 694581)
synthetic construct (Taxon ID: 32630)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.40 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
7LV8 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Histone doublet Delta-Gamma (Gamma)
Gene (Uniprot):MAR_ORF413
Chain IDs:B (auth: A), F (auth: E)
Chain Length:106
Number of Molecules:2
Biological Source:Marseillevirus marseillevirus
UniProt ID:D2XB48 Pfam ID:PF00125
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Histone doublet Delta-Gamma (Delta)
Gene (Uniprot):MAR_ORF413
Chain IDs:A (auth: B), E (auth: F)
Chain Length:97
Number of Molecules:2
Biological Source:Marseillevirus marseillevirus
UniProt ID:D2XB48 Pfam ID:PF00125
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Histone doublet Beta-Alpha (Alpha)
Gene (Uniprot):MAR_ORF414
Chain IDs:D (auth: C), H (auth: G)
Chain Length:165
Number of Molecules:2
Biological Source:Marseillevirus marseillevirus
UniProt ID:D2XB49 Pfam ID:PF00125
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Histone doublet Beta-Alpha (Beta)
Chain IDs:C (auth: D), G (auth: H)
Chain Length:104
Number of Molecules:2
Biological Source:Marseillevirus marseillevirus
UniProt ID:A0A097I2B5
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (123-MER)
Chain IDs:I
Chain Length:121
Number of Molecules:1
Biological Source:synthetic construct
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (123-MER)
Chain IDs:J
Chain Length:121
Number of Molecules:1
Biological Source:synthetic construct
Ligand Molecules
NA
Primary Citation
The structure of a virus-encoded nucleosome.
Nat.Struct.Mol.Biol. 28 413 417 (2021)
PMID: 33927388 DOI: 10.1038/s41594-021-00585-7

Abstact

Certain large DNA viruses, including those in the Marseilleviridae family, encode histones. Here we show that fused histone pairs Hβ-Hα and Hδ-Hγ from Marseillevirus are structurally analogous to the eukaryotic histone pairs H2B-H2A and H4-H3. These viral histones form 'forced' heterodimers, and a heterotetramer of four such heterodimers assembles DNA to form structures virtually identical to canonical eukaryotic nucleosomes.

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Disease

Primary Citation of related structures
7LV8