Evidence map›Paper›PMID 26514828›Full record

ArticleBiology direct2015

Evolution of an archaeal virus nucleocapsid protein from the CRISPR-associated Cas4 nuclease.

Mart Krupovic, Virginija Cvirkaite-Krupovic, David Prangishvili, Eugene V Koonin

Open access · goldAbstract read
In one paragraph

Article in Biology direct, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.7field-weighted citation impact, top 17% of its field
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

16 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Phylogenomics of Cas4 family nucleases.BMC evolutionary biology · 2017
    Article
  10. The enigmatic archaeal virosphere.Nature reviews. Microbiology · 2017
    Review
  11. Review
  12. Article
  13. Multiple origins of viral capsid proteins from cellular ancestors.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  14. Review
  15. Article
  16. A virus of hyperthermophilic archaea with a unique architecture among DNA viruses.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Mart KrupovicDepartment of Microbiology, Unité Biologie Moléculaire du Gène chez les Extrêmophiles, Institut Pasteur, Paris, 75015, France. krupovic@pasteur.fr.
Virginija Cvirkaite-KrupovicDepartment of Microbiology, Unité Biologie Moléculaire du Gène chez les Extrêmophiles, Institut Pasteur, Paris, 75015, France. virginija.cvirkaite-krupovic@pasteur.fr.
David PrangishviliDepartment of Microbiology, Unité Biologie Moléculaire du Gène chez les Extrêmophiles, Institut Pasteur, Paris, 75015, France. david.prangishvili@pasteur.fr.
Eugene V KooninNational Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20894, USA. koonin@ncbi.nlm.nih.gov.
Biology of Extremophiles Laboratory · FRNational Center for Biotechnology Information · US

Funding

Finding Protein Sequence Motifs--Methods And ApplicationsZIALM000061 · NLM · NATIONAL LIBRARY OF MEDICINE · PI KOONIN, EUGENE V · 2009 to 2025
$10.6M
Intramural NIH HHS
6 · The paper itself

Abstract

Many proteins of viruses infecting hyperthermophilic Crenarchaeota have no detectable homologs in current databases, hampering our understanding of viral evolution. We used sensitive database search methods and structural modeling to show that a nucleocapsid protein (TP1) of Thermoproteus tenax virus 1 (TTV1) is a derivative of the Cas4 nuclease, a component of the CRISPR-Cas adaptive immunity system that is encoded also by several archaeal viruses. In TTV1, the Cas4 gene was split into two, with the N-terminal portion becoming TP1, and lost some of the catalytic amino acid residues, apparently resulting in the inactivation of the nuclease. To our knowledge, this is the first described case of exaptation of an enzyme for a virus capsid protein function.

Indexed as

Evolution, MolecularArchaeal ProteinsCRISPR-Cas SystemsEndonucleasesLipothrixviridaeNucleocapsid ProteinsThermoproteusArchaeal ProteinsEndonucleasesNucleocapsid Proteins

Identifiers

PMID26514828
PMCPMC4625639
OpenAlexW1904669164

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.