Evidence map›Paper›PMID 22408157›Full record

ArticleJournal of bacteriology2012

Characterization of the CRISPR/Cas subtype I-A system of the hyperthermophilic crenarchaeon Thermoproteus tenax.

André Plagens, Britta Tjaden, Anna Hagemann, Lennart Randau, Reinhard Hensel

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
7.7field-weighted citation impact, top 2% 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

66 citing papers in PubMed, 111 citations in OpenAlex.

  1. CRISPR-Cas Systems: A Functional Perspective and Innovations.International journal of molecular sciences · 2025
    Review
  2. Review
  3. Article
  4. Casboundary: automated definition of integral Cas cassettes.Bioinformatics (Oxford, England) · 2021
    Article
  5. Review
  6. Liposomal delivery of CRISPR/Cas9.Cancer gene therapy · 2020
    Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
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  17. Article
  18. Article
  19. Article
  20. Phylogenomics of Cas4 family nucleases.BMC evolutionary biology · 2017
    Article

6 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

André PlagensInstitute of Biology, Microbiology I, University of Duisburg-Essen, Essen, Germany. andre.plagens@mpi-marburg.mpg.de
Britta Tjaden
Anna Hagemann
Lennart Randau
Reinhard Hensel
University of Duisburg-Essen · DEMax Planck Institute for Terrestrial Microbiology · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

CRISPR (clustered regularly interspaced short palindromic repeats) elements and cas (CRISPR-associated) genes are widespread in Bacteria and Archaea. The CRISPR/Cas system operates as a defense mechanism against mobile genetic elements (i.e., viruses or plasmids). Here, we investigate seven CRISPR loci in the genome of the crenarchaeon Thermoproteus tenax that include spacers with significant similarity not only to archaeal viruses but also to T. tenax genes. The analysis of CRISPR RNA (crRNA) transcription reveals transcripts of a length between 50 and 130 nucleotides, demonstrating the processing of larger crRNA precursors. The organization of identified cas genes resembles CRISPR/Cas subtype I-A, and the core cas genes are shown to be arranged on two polycistronic transcripts: cascis (cas4, cas1/2, and csa1) and cascade (csa5, cas7, cas5a, cas3, cas3', and cas8a2). Changes in the environmental parameters such as UV-light exposure or high ionic strength modulate cas gene transcription. Two reconstitution protocols were established for the production of two discrete multipartite Cas protein complexes that correspond to their operonic gene arrangement. These data provide insights into the specialized mechanisms of an archaeal CRISPR/Cas system and allow selective functional analyses of Cas protein complexes in the future.

Indexed as

Adaptation, PhysiologicalArchaeal ProteinsBacteriophagesCloning, MolecularCulture MediaGene Expression Regulation, ArchaealGene Transfer, HorizontalInverted Repeat SequencesOsmolar ConcentrationThermoproteusUltraviolet RaysArchaeal ProteinsCulture Media

Identifiers

PMID22408157
PMCPMC3347209
OpenAlexW2112046950

What OpenQuestion holds

Textmetadata
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.