Evidence map›Paper›PMID 15791728›Full record

ArticleJournal of molecular evolution2005

Intervening sequences of regularly spaced prokaryotic repeats derive from foreign genetic elements.

Francisco J M Mojica, César Díez-Villaseñor, Jesús García-Martínez, Elena Soria

Abstract read
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In one paragraph

Article in Journal of molecular evolution, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 986 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
986citing papers in PubMed, 2 pooled it
6.4field-weighted citation impact, top 3% 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

986 citing papers in PubMed, 2 syntheses or guidelines pooled it, 2,165 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. CRISPR/Cas Systems: Biological Basis and Genome Editing Applications.Methods in molecular biology (Clifton, N.J.) · 2027
    Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
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  12. Molecular mechanisms and biotechnology applications of CRISPR-Cas12a.Nature reviews. Molecular cell biology · 2026
    Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Advances in CRISPR Plant Applications.International journal of molecular sciences · 2026
    Review
  18. Review
  19. Article
  20. Review

926 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

4 authors at 1 institution in 1 country.

Francisco J M MojicaDivisón de Microbiología, Departamento de Fisiología, Genética y Microbiología, Universidad de Alicante, Campus de San Vicente, E-03080, Spain. fmojica@ua.es
César Díez-Villaseñor
Jesús García-Martínez
Elena Soria
University of Alicante · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Prokaryotes contain short DN repeats known as CRISPR, recognizable by the regular spacing existing between the recurring units. They represent the most widely distributed family of repeats among prokaryotic genomes suggesting a biological function. The origin of the intervening sequences, at present unknown, could provide clues about their biological activities. Here we show that CRISPR spacers derive from preexisting sequences, either chromosomal or within transmissible genetic elements such as bacteriophages and conjugative plasmids. Remarkably, these extrachromosomal elements fail to infect the specific spacer-carrier strain, implying a relationship between CRISPR and immunity against targeted DNA. Bacteriophages and conjugative plasmids are involved in prokaryotic population control, evolution, and pathogenicity. All these biological traits could be influenced by the presence of specific spacers. CRISPR loci can be visualized as mosaics of a repeated unit, separated by sequences at some time present elsewhere in the cell.

Indexed as

Evolution, MolecularIntronsRepetitive Sequences, Nucleic AcidBase SequenceDNA, ArchaealDNA, BacterialDNA, IntergenicEscherichia coliMethanobacteriaceaeMolecular Sequence DataSequence Homology, Nucleic AcidStreptococcus pyogenesSulfolobusDNA, ArchaealDNA, BacterialDNA, Intergenic

Identifiers

PMID15791728
OpenAlexW1990487336

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.