Evidence map›Paper›PMID 34174210›Full record

ArticleCurrent biology : CB2021

Distribution and phasing of sequence motifs that facilitate CRISPR adaptation.

Andrew Santiago-Frangos, Murat Buyukyoruk, Tanner Wiegand, Pushya Krishna, Blake Wiedenheft

Open access · bronzeAbstract read
In one paragraph

Article in Current biology : CB, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

17 citing papers in PubMed, 25 citations in OpenAlex.

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  12. AMicrobiology spectrum · 2022
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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

5 authors at 1 institution in 1 country.

Andrew Santiago-FrangosDepartment of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA.
Murat BuyukyorukDepartment of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA.
Tanner WiegandDepartment of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA.
Pushya KrishnaDepartment of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA.
Blake WiedenheftDepartment of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA. Electronic address: bwiedenheft@gmail.com.
Montana State University · US

Funding

Research Core (Developmental Research Project Program)P20GM103474 · NIGMS · MONTANA STATE UNIVERSITY - BOZEMAN · PI Jeffrey Good · 2012 to 2026
$60.0M
Structural and functional understanding of bacterial defense and viral counter defenseR35GM134867 · NIGMS · MONTANA STATE UNIVERSITY - BOZEMAN · PI Blake A Wiedenheft · 2020 to 2026
$3.8M
NIGMS NIH HHS P20 GM103474NIGMS NIH HHS R35 GM134867
6 · The paper itself

Abstract

CRISPR-associated proteins (Cas1 and Cas2) integrate foreign DNA at the "leader" end of CRISPR loci. Several CRISPR leader sequences are reported to contain a binding site for a DNA-bending protein called integration host factor (IHF). IHF-induced DNA bending kinks the leader of type I-E CRISPRs, recruiting an upstream sequence motif that helps dock Cas1-2 onto the first repeat of the CRISPR locus. To determine the prevalence of IHF-directed CRISPR adaptation, we analyzed 15,274 bacterial and archaeal CRISPR leaders. These experiments reveal multiple IHF binding sites and diverse upstream sequence motifs in a subset of the I-C, I-E, I-F, and II-C CRISPR leaders. We identify subtype-specific motifs and show that the phase of these motifs is critical for CRISPR adaptation. Collectively, this work clarifies the prevalence and mechanism(s) of IHF-dependent CRISPR adaptation and suggests that leader sequences and adaptation proteins may coevolve under the selective pressures of foreign genetic elements like plasmids or phages.

Indexed as

Clustered Regularly Interspaced Short Palindromic RepeatsCRISPR-Associated ProteinsCRISPR-Cas SystemsDNAEndonucleasesCRISPR-Associated ProteinsDNAEndonucleasesCas1-2Cas1-2/3CRISPRCRISPR adaptationDNA integrationDNA loopingDNA phaseIHF

Identifiers

PMID34174210
PMCPMC8552246
OpenAlexW3174637188

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.