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. 2009 Dec 15;25(24):3317-8.
doi: 10.1093/bioinformatics/btp586. Epub 2009 Oct 21.

CRISPI: A CRISPR Interactive Database

Free PMC article

CRISPI: A CRISPR Interactive Database

Christine Rousseau et al. Bioinformatics. .
Free PMC article


Summary: The CRISPR genomic structures (Clustered Regularly Interspaced Short Palindromic Repeats) form a family of repeats that is largely present in archaea and frequent in bacteria. On the basis of a formal model of CRISPR using very few parameters, a systematic study of all their occurrences in all available genomes of Archaea and Bacteria has been carried out. This has resulted in a relational database, CRISPI, which also includes a complete repertory of associated CRISPR-associated genes (CAS). A user-friendly web interface with many graphical tools and functions allows users to extract results, find CRISPR in personal sequences or calculate sequence similarity with spacers.

Availability: CRISPI free access at



Fig. 1.
Fig. 1.
Typical graphical views in CRISPI.

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