Evidence map›Paper›PMID 35595728›Full record

ArticleNature communications2022

Structural rearrangements allow nucleic acid discrimination by type I-D Cascade.

Evan A Schwartz, Tess M McBride, Jack P K Bravo, Daniel Wrapp, Peter C Fineran, Robert D Fagerlund, David W Taylor

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

23 citing papers in PubMed, 39 citations in OpenAlex.

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  17. Mechanistic insights into DNA binding and cleavage by a compact type I-F CRISPR-Cas system in bacteriophage.Proceedings of the National Academy of Sciences of the United States of America · 2023
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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

7 authors at 3 institutions in 2 countries.

Evan A Schwartz *Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, 78712-1597, USA.
Tess M McBride *Microbiology and Immunology, University of Otago, PO Box 56, Dunedin, 9054, New Zealand.ORCID http://orcid.org/0000-0002-1663-4206
Jack P K Bravo *Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, 78712-1597, USA.
Daniel WrappDepartment of Molecular Biosciences, University of Texas at Austin, Austin, TX, 78712-1597, USA.ORCID http://orcid.org/0000-0002-0538-9647
Peter C FineranMicrobiology and Immunology, University of Otago, PO Box 56, Dunedin, 9054, New Zealand.ORCID http://orcid.org/0000-0002-4639-6704
Robert D FagerlundMicrobiology and Immunology, University of Otago, PO Box 56, Dunedin, 9054, New Zealand.ORCID http://orcid.org/0000-0002-3939-1489
David W TaylorDepartment of Molecular Biosciences, University of Texas at Austin, Austin, TX, 78712-1597, USA. dtaylor@utexas.edu.ORCID http://orcid.org/0000-0002-6198-1194
The University of Texas at Austin · USUniversity of Otago · NZLivestrong Foundation · US

Funding

Ruth L. Kirschstein National Research Service Award (NRSA)- T32T32AI007392 · NIAID · DUKE UNIVERSITY · PI Amy Lynn Corneli, Guido Ferrari · 1990 to 2026
$9.8M
Imaging macromolecular machines in gene regulationR35GM138348 · NIGMS · UNIVERSITY OF TEXAS AT AUSTIN · PI TAYLOR, DAVID W · 2020 to 2024
$1.9M
NIAID NIH HHS T32 AI007392NIGMS NIH HHS R35 GM138348
6 · The paper itself

Abstract

CRISPR-Cas systems are adaptive immune systems that protect prokaryotes from foreign nucleic acids, such as bacteriophages. Two of the most prevalent CRISPR-Cas systems include type I and type III. Interestingly, the type I-D interference proteins contain characteristic features of both type I and type III systems. Here, we present the structures of type I-D Cascade bound to both a double-stranded (ds)DNA and a single-stranded (ss)RNA target at 2.9 and 3.1 Å, respectively. We show that type I-D Cascade is capable of specifically binding ssRNA and reveal how PAM recognition of dsDNA targets initiates long-range structural rearrangements that likely primes Cas10d for Cas3' binding and subsequent non-target strand DNA cleavage. These structures allow us to model how binding of the anti-CRISPR protein AcrID1 likely blocks target dsDNA binding via competitive inhibition of the DNA substrate engagement with the Cas10d active site. This work elucidates the unique mechanisms used by type I-D Cascade for discrimination of single-stranded and double stranded targets. Thus, our data supports a model for the hybrid nature of this complex with features of type III and type I systems.

Indexed as

CRISPR-Associated ProteinsNucleic AcidsCRISPR-Cas SystemsDNADNA CleavageRNACRISPR-Associated ProteinsDNANucleic AcidsRNA

Identifiers

PMID35595728
PMCPMC9123187
OpenAlexW4280647261

What OpenQuestion holds

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Registered trials

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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.