Evidence map›Paper›PMID 33332569›Full record

ArticleNucleic acids research2021

Structural basis for inhibition of the type I-F CRISPR-Cas surveillance complex by AcrIF4, AcrIF7 and AcrIF14.

Clinton Gabel, Zhuang Li, Heng Zhang, Leifu Chang

Open access · goldAbstract readVideo-Audio Media
In one paragraph

Article in Nucleic acids research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

25 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
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  9. Review
  10. Article
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  12. Elimination of blaBMC microbiology · 2023
    Article
  13. Article
  14. Article
  15. Unveil the Secret of the Bacteria and Phage Arms Race.International journal of molecular sciences · 2023
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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 1 institution in 1 country.

Clinton GabelDepartment of Biological Sciences, Purdue University, 915 W. State Street, West Lafayette, IN 47907, USA.
Zhuang LiDepartment of Biological Sciences, Purdue University, 915 W. State Street, West Lafayette, IN 47907, USA.
Heng ZhangDepartment of Biological Sciences, Purdue University, 915 W. State Street, West Lafayette, IN 47907, USA.
Leifu ChangDepartment of Biological Sciences, Purdue University, 915 W. State Street, West Lafayette, IN 47907, USA.
State Street (United States) · US

Funding

Purdue University Molecular Biophysics Training ProgramT32GM132024 · NIGMS · PURDUE UNIVERSITY · PI Angeline Marie Lyon, John Tesmer · 2019 to 2026
$2.0M
Molecular basis for CRISPR RNA-guided nucleic acid cleavage and DNA transpositionR01GM138675 · NIGMS · PURDUE UNIVERSITY · PI CHANG, LEIFU · 2020 to 2024
$1.8M
NIGMS NIH HHS R01 GM138675NIGMS NIH HHS T32 GM132024
6 · The paper itself

Abstract

CRISPR-Cas systems are adaptive immune systems in bacteria and archaea to defend against mobile genetic elements (MGEs) and have been repurposed as genome editing tools. Anti-CRISPR (Acr) proteins are produced by MGEs to counteract CRISPR-Cas systems and can be used to regulate genome editing by CRISPR techniques. Here, we report the cryo-EM structures of three type I-F Acr proteins, AcrIF4, AcrIF7 and AcrIF14, bound to the type I-F CRISPR-Cas surveillance complex (the Csy complex) from Pseudomonas aeruginosa. AcrIF4 binds to an unprecedented site on the C-terminal helical bundle of Cas8f subunit, precluding conformational changes required for activation of the Csy complex. AcrIF7 mimics the PAM duplex of target DNA and is bound to the N-terminal DNA vise of Cas8f. Two copies of AcrIF14 bind to the thumb domains of Cas7.4f and Cas7.6f, preventing hybridization between target DNA and the crRNA. Our results reveal structural detail of three AcrIF proteins, each binding to a different site on the Csy complex for inhibiting degradation of MGEs.

Indexed as

CRISPR-Cas SystemsAmino Acid SequenceCRISPR-Associated ProteinsCryoelectron MicroscopyDatasets as TopicDNA, BacterialElectrophoretic Mobility Shift AssayImage Processing, Computer-AssistedModels, MolecularProtein BindingProtein ConformationProtein DomainsProtein Interaction MappingPseudomonas aeruginosaPseudomonas PhagesRecombinant ProteinsCRISPR-Associated ProteinsDNA, BacterialRecombinant ProteinsViral Proteins

Identifiers

PMID33332569
PMCPMC7797054
OpenAlexW3116757759

What OpenQuestion holds

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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.