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CRISPRcompar is a web-based tool to assist biologists using the CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) for comparative and evolutionary analyzes of closely related bacterial strains.

The CRISPRs web server contains several tools for the CRISPR analyzes: CRISPRdb, BLAST CRISPRdb, CRISPRcompar, CRISPRtionary, FlankAlign, CRISPRs finder, and CRISPRs Utilities.


Sequence composition, complexity and repeats; Genetics; Model organisms; DNA polymorphism; Genetic variation


  • Operation: Genetic variation analysis; Clustering; Genotyping; Repeat sequence analysis
  • Software interface: Web user interface
  • Language: -
  • Operating system: Linux; Mac OS X; Microsoft Windows
  • License: Not stated
  • Cost: Free
  • Version name: -
  • Credit: The CNRS ,Universit√© Paris Sud 11, the TBChina EU project, Association Vaincre la Mucoviscidose.
  • Contact: christine.pourcel _at_
  • Collection: -


Grissa I, Vergnaud G, Pourcel C "CRISPRcompar: a website to compare clustered regularly interspaced short palindromic repeats." Nucleic Acids Res. 2008; 36(Web Server issue):W145-8
PMID: 18442988
PMCID: PMC2447796

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