6V7B image
Entry Detail
PDB ID:
6V7B
EMDB ID:
EMD-21094
Keywords:
VIRUS
Title:
Cryo-EM reconstruction of Pyrobaculum filamentous virus 2 (PFV2)
Biological Source:
Source Organism:
Pyrobaculum filamentous virus 1
PDB Version:
Deposition Date:
2019-12-08
Release Date:
2020-04-01
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.40 Å
Aggregation State:
FILAMENT
Reconstruction Method:
HELICAL
6V7B validation report
Macromolecular Entities
Polymer Type:polydeoxyribonucleotide
Description:A-DNA
Chain IDs:A (auth: 1)
Chain Length:323
Number of Molecules:1
Biological Source:Pyrobaculum filamentous virus 1
Polymer Type:polydeoxyribonucleotide
Description:A-DNA
Chain IDs:B (auth: 2)
Chain Length:323
Number of Molecules:1
Biological Source:Pyrobaculum filamentous virus 1
Protein Blast
Polymer Type:polypeptide(L)
Description:Structural protein VP1
Chain IDs:C (auth: A), D (auth: B), E (auth: C), F (auth: D), G (auth: E), H (auth: F), I (auth: G), J (auth: H), K (auth: I), L (auth: J), M (auth: K), N (auth: L), O (auth: M), P (auth: N), Q (auth: O), R (auth: P), S (auth: Q), T (auth: R), U (auth: S), V (auth: T), W (auth: U), X (auth: V), Y (auth: W)
Chain Length:145
Number of Molecules:23
Biological Source:Pyrobaculum filamentous virus 1
UniProt ID:A0A6M3VZT9,A0A140F3K6
Protein Blast
Polymer Type:polypeptide(L)
Description:Structural protein VP2
Chain IDs:Z (auth: a), AA (auth: b), BA (auth: c), CA (auth: d), DA (auth: e), EA (auth: f), FA (auth: g), GA (auth: h), HA (auth: i), IA (auth: j), JA (auth: k), KA (auth: l), LA (auth: m), MA (auth: n), NA (auth: o), OA (auth: p), PA (auth: q), QA (auth: r), RA (auth: s), SA (auth: t), TA (auth: u), UA (auth: v), VA (auth: w)
Chain Length:145
Number of Molecules:23
Biological Source:Pyrobaculum filamentous virus 1
UniProt ID:A0A6M3VWZ7,A0A140F3K7
Ligand Molecules
NA
Primary Citation
Structure of a filamentous virus uncovers familial ties within the archaeal virosphere.
Virus Evol 6 veaa023 veaa023 (2020)
PMID: 32368353 DOI: 10.1093/ve/veaa023

Abstact

Viruses infecting hyperthermophilic archaea represent one of the most enigmatic parts of the global virome, with viruses from different families showing no genomic relatedness to each other or to viruses of bacteria and eukaryotes. Tristromaviruses, which build enveloped filamentous virions and infect hyperthermophilic neutrophiles of the order Thermoproteales, represent one such enigmatic virus families. They do not share genes with viruses from other families and have been believed to represent an evolutionarily independent virus lineage. A cryo-electron microscopic reconstruction of the tristromavirus Pyrobaculum filamentous virus 2 at 3.4 Å resolution shows that the virion is constructed from two paralogous major capsid proteins (MCP) which transform the linear dsDNA genome of the virus into A-form by tightly wrapping around it. Unexpectedly, the two MCP are homologous to the capsid proteins of other filamentous archaeal viruses, uncovering a deep evolutionary relationship within the archaeal virosphere.

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Primary Citation of related structures
6V7B