Evidence map›Paper›PMID 28605718›Full record

ReviewCurrent opinion in microbiology2017

Diversity, classification and evolution of CRISPR-Cas systems.

Eugene V Koonin, Kira S Makarova, Feng Zhang

Abstract readReview
In one paragraph

Review in Current opinion in microbiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 708 papers.

0numbers the graph read from it
0cells of the map it votes in
708citing papers in PubMed
62.7field-weighted citation impact, top 1% 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

708 citing papers in PubMed, 1,411 citations in OpenAlex.

  1. CRISPR/Cas Systems: Biological Basis and Genome Editing Applications.Methods in molecular biology (Clifton, N.J.) · 2027
    Review
  2. Review
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  5. CRISPR/Cas9-based nanodelivery systems for precision gene editing in neuroinflammation.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  6. Article
  7. Review
  8. Article
  9. Article
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  11. Genome Evolution in Plant Pathogenic Bacteria.Genome biology and evolution · 2026
    Review
  12. Review
  13. Gigabase-scale deletion scanning of the human genome.bioRxiv : the preprint server for biology · 2026
    Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Article

648 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

3 authors at 2 institutions in 1 country.

Eugene V KooninNational Center for Biotechnology Information, National Library of Medicine, Bethesda, MD 20894, USA. Electronic address: koonin@ncbi.nlm.nih.gov.
Kira S MakarovaNational Center for Biotechnology Information, National Library of Medicine, Bethesda, MD 20894, USA.
Feng ZhangBroad Institute of MIT and Harvard, Cambridge, MA 02142, USA; McGovern Institute for Brain Research at MIT, Cambridge, MA 02139, USA; Departments of Brain and Cognitive Science and Biological Engineering, Cambridge, MA 02139, USA.
National Center for Biotechnology Information · USBroad Institute · US

Funding

Comparative Analysis Of Completely Sequenced GenomesZIALM000073 · NLM · NATIONAL LIBRARY OF MEDICINE · PI KOONIN, EUGENE V · 2009 to 2025
$43.1M
Finding Protein Sequence Motifs--Methods And ApplicationsZIALM000061 · NLM · NATIONAL LIBRARY OF MEDICINE · PI KOONIN, EUGENE V · 2009 to 2025
$10.6M
COMPARATIVE ANALYSIS OF COMPLETELY SEQUENCED GENOMESZ01LM000073 · NLM · NATIONAL LIBRARY OF MEDICINE · PI KOONIN, EUGENE V · 1996 to 2008
$1.2M
Intramural NIH HHS Z01 LM000073
6 · The paper itself

Abstract

The bacterial and archaeal CRISPR-Cas systems of adaptive immunity show remarkable diversity of protein composition, effector complex structure, genome locus architecture and mechanisms of adaptation, pre-CRISPR (cr)RNA processing and interference. The CRISPR-Cas systems belong to two classes, with multi-subunit effector complexes in Class 1 and single-protein effector modules in Class 2. Concerted genomic and experimental efforts on comprehensive characterization of Class 2 CRISPR-Cas systems led to the identification of two new types and several subtypes. The newly characterized type VI systems are the first among the CRISPR-Cas variants to exclusively target RNA. Unexpectedly, in some of the class 2 systems, the effector protein is additionally responsible for the pre-crRNA processing. Comparative analysis of the effector complexes indicates that Class 2 systems evolved from mobile genetic elements on multiple, independent occasions.

Indexed as

CRISPR-Cas SystemsEvolution, MolecularGenetic VariationArchaeaBacteria

Identifiers

PMID28605718
PMCPMC5776717
OpenAlexW2623277795

What OpenQuestion holds

Textmetadata
LicenceTDM
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.