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CRISPRFinder is a web-based tool for the discovery of CRISPRs, the definition of direct repeats (DR), extraction of spacers, obtaining flanking sequences from the Genbank database, and examine DRs in prokaryotic genomes in general. See also CRISPRcompar


Model organisms; Transcription factors and regulatory sites; Sequence composition, complexity and repeats; DNA polymorphism; Gene expression


  • Operation: Repeat sequence detection; Sequence motif recognition; Clustering; Repeat sequence analysis
  • Input: DNA sequence (FASTA)
  • Output: -
  • Software interface: Web user interface
  • Language: -
  • Operating system: Linux; Mac OS X; Microsoft Windows
  • License: Not stated
  • Cost: Free
  • Version name: -
  • Credit: The CNRS and Université Paris Sud 11, the Délégation Générale pour l’Armement (DGA), ADGE.
  • Contact: christine.pourcel _at_
  • Collection: -


Grissa I, Vergnaud G, Pourcel C "CRISPRFinder: a web tool to identify clustered regularly interspaced short palindromic repeats." Nucleic Acids Res. 2007; 35(Web Server issue):W52-7
PMID: 17537822
PMCID: PMC1933234

Grissa I, Vergnaud G, Pourcel C "The CRISPRdb database and tools to display CRISPRs and to generate dictionaries of spacers and repeats." BMC Bioinformatics, 2007
PMID: 17521438
PMCID: PMC1892036

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