Evidence map›Paper›PMID 27588603›Full record

ArticleMolecular cell2016

DNA Targeting by a Minimal CRISPR RNA-Guided Cascade.

Megan L Hochstrasser, David W Taylor, Jack E Kornfeld, Eva Nogales, Jennifer A Doudna

Abstract read
In one paragraph

Article in Molecular cell, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing 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

45 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Enhanced editing ofApplied and environmental microbiology · 2026
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Endogenous Type I-C CRISPR-Cas system ofFrontiers in microbiology · 2024
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. CRISPR-Cas9 bends and twists DNA to read its sequence.Nature structural & molecular biology · 2022
    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

5 authors.

Megan L HochstrasserDepartment of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
David W TaylorDepartment of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA; California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA 94720, USA. Electronic address: dtaylor@utexas.edu.
Jack E KornfeldHoward Hughes Medical Institute, University of California, Berkeley, Berkeley, CA 94720, USA.
Eva NogalesDepartment of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA; California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA 94720, USA; Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA 94720, USA; Molecular Biophysics and Integrative Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Jennifer A DoudnaDepartment of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA; California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, CA 94720, USA; Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA 94720, USA; Molecular Biophysics and Integrative Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA. Electronic address: doudna@berkeley.edu.

Funding

TUBULIN STRUCTURE BY ELECTRON CRYSTALLOGRAPHYP01GM051487 · NIGMS · UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB · PI CATE, JAMIE H · 1994 to 2018
$27.6M
Howard Hughes Medical InstituteNIGMS NIH HHS P01 GM051487
6 · The paper itself

Abstract

Bacteria employ surveillance complexes guided by CRISPR (clustered, regularly interspaced, short palindromic repeats) RNAs (crRNAs) to target foreign nucleic acids for destruction. Although most type I and type III CRISPR systems require four or more distinct proteins to form multi-subunit surveillance complexes, the type I-C systems use just three proteins to achieve crRNA maturation and double-stranded DNA target recognition. We show that each protein plays multiple functional and structural roles: Cas5c cleaves pre-crRNAs and recruits Cas7 to position the RNA guide for DNA binding and unwinding by Cas8c. Cryoelectron microscopy reconstructions of free and DNA-bound forms of the Cascade/I-C surveillance complex reveal conformational changes that enable R-loop formation with distinct positioning of each DNA strand. This streamlined type I-C system explains how CRISPR pathways can evolve compact structures that retain full functionality as RNA-guided DNA capture platforms.

Indexed as

CRISPR-Cas SystemsAmino Acid MotifsBacterial ProteinsBinding SitesCloning, MolecularCryoelectron MicroscopyDesulfovibrio vulgarisDNAEndonucleasesEscherichia coliGene EditingGene ExpressionKineticsModels, MolecularNucleic Acid ConformationOperonBacterial ProteinsDNAEndonucleasesRecombinant ProteinsRNA, BacterialRNA, Guide, CRISPR-Cas Systems

Identifiers

PMID27588603
PMCPMC5111854

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.