ArticleThe CRISPR journal2025
Discovery of Diverse CRISPR Leader Motifs, Putative Functions, and Applications for Enhanced CRISPR Detection and Subtype Annotation.
Article in The CRISPR journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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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.
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Who cites it
3 citing papers in PubMed.
- The complexity of multiple CRISPR arrays in strains with (co-occurring) CRISPR systems.microLife · 2026Article
- Structures reveal how the Cas1-2/3 integrase captures, delivers, and integrates foreign DNA into CRISPR loci.Structure (London, England : 1993) · 2025Article
- An evolutionary approach to predict the orientation of CRISPR arrays.PLoS computational biology · 2025Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
Bacteria and archaea acquire resistance to genetic parasites by preferentially integrating short fragments of foreign DNA at one end of a Clustered Regularly Interspaced Short Palindromic Repeat (CRISPR). "Leader" DNA upstream of CRISPR loci regulates transcription and foreign DNA integration into the CRISPR. Here, we analyze 37,477 CRISPRs from 39,277 bacterial and 556 archaeal genomes to identify conserved sequence motifs in CRISPR leaders. A global analysis of all leader sequences fails to identify universally conserved motifs. However, an analysis of leader sequences that have been grouped by 16S rRNA-based taxonomy and CRISPR subtype reveals 87 specific motifs in type I, II, III, and V CRISPR leaders. Fourteen of these leader motifs have biochemically demonstrated roles in CRISPR biology including integration, transcription, and CRISPR RNA processing. Another 28 motifs are related to DNA binding sites for proteins with functions that are consistent with regulating CRISPR activity. In addition, we show that these leader motifs can be used to improve existing CRISPR detection methods and enhance the accuracy of CRISPR classification.
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Registered trials
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