Evidence map›Paper›PMID 34181731›Full record

ArticleNucleic acids research2021

Structure of the bacteriophage PhiKZ non-virion RNA polymerase.

Natàlia deYMartín Garrido, Mariia Orekhova, Yuen Ting Emilie Lai Wan Loong, Anna Litvinova, Kailash Ramlaul, Tatyana Artamonova, Alexei S Melnikov, Pavel Serdobintsev, Christopher H S Aylett, Maria Yakunina

Erratum issuedAbstract read
In one paragraph

Article in Nucleic acids research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed.

  1. Article
  2. The biology of jumbo phages.Nature communications · 2026
    Review
  3. Article
  4. Article
  5. Bacteriophage genome-wide transposon mutagenesis.bioRxiv : the preprint server for biology · 2025
    Article
  6. The Biology of Nucleus-Forming Jumbo Phages.Annual review of genetics · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Asesino: a nucleus-forming phage that lacks PhuZ.bioRxiv : the preprint server for biology · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Natàlia deYMartín GarridoSection for Structural and Synthetic Biology, Department of Infectious Disease, Imperial College London, London, UK.
Mariia OrekhovaPeter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia.
Yuen Ting Emilie Lai Wan LoongSection for Structural and Synthetic Biology, Department of Infectious Disease, Imperial College London, London, UK.
Anna LitvinovaPeter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia.
Kailash RamlaulSection for Structural and Synthetic Biology, Department of Infectious Disease, Imperial College London, London, UK.
Tatyana ArtamonovaPeter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia.
Alexei S MelnikovPeter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia.
Pavel SerdobintsevSt. Petersburg State University, St. Petersburg, Russia.
Christopher H S AylettSection for Structural and Synthetic Biology, Department of Infectious Disease, Imperial College London, London, UK.ORCID 0000-0003-0662-6664
Maria YakuninaPeter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia.

Funding

Wellcome TrustWellcome Trust 206175/Z/17/ZWellcome Trust 206212/Z/17/Z
6 · The paper itself

Abstract

Bacteriophage ΦKZ (PhiKZ) is the archetype of a family of massive bacterial viruses. It is considered to have therapeutic potential as its host, Pseudomonas aeruginosa, is an opportunistic, intrinsically antibiotic resistant, pathogen that kills tens of thousands worldwide each year. ΦKZ is an incredibly interesting virus, expressing many systems that the host already possesses. On infection, it forms a 'nucleus', erecting a barrier around its genome to exclude host endonucleases and CRISPR-Cas systems. ΦKZ infection is independent of the host transcriptional apparatus. It expresses two different multi-subunit RNA polymerases (RNAPs): the virion RNAP (vRNAP) is injected with the viral DNA during infection to transcribe early genes, including those encoding the non-virion RNAP (nvRNAP), which transcribes all further genes. ΦKZ nvRNAP is formed by four polypeptides thought to represent homologues of the eubacterial β/β' subunits, and a fifth with unclear homology, but essential for transcription. We have resolved the structure of ΦKZ nvRNAP to better than 3.0 Å, shedding light on its assembly, homology, and the biological role of the fifth subunit: it is an embedded, integral member of the complex, the position, structural homology and biochemical role of which imply that it has evolved from an ancestral homologue to σ-factor.

Indexed as

Cryoelectron MicroscopyDNA-Directed RNA PolymerasesModels, MolecularPromoter Regions, GeneticProtein SubunitsPseudomonas PhagesViral ProteinsDNA-Directed RNA PolymerasesProtein SubunitsViral Proteins

Identifiers

PMID34181731
PMCPMC8287921

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.