Institut de Génétique et Microbiologie

CRISPRs web server


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Université Paris Sud

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Data Summary

Genomes analysed CRISPRs found (*)
Archea 231 890(202)
Bacteria 6600 8732(3293)
Total 6831 9622(3495)

*number of convincing CRISPR structures (number of genomes with such CRISPR)

Database status:
Last update : 2017-01-02

Contact:
Christine POURCEL

Welcome to CRISPRs web server. This site acts as a gateway to publicly accessible CRISPRs database and software. It enables the easy detection of CRISPRs in locally-produced data and consultation of CRISPRs present in the database. It also gives information on the presence of CRISPR-associated (cas) genes when they have been annotated as such.
This web site is the product of an original work by Ibtissem Grissa (PhD thesis Paris University) and is presently developed by Christine Drevet.


Please cite :
CRISPRFinder : a web tool to identify clustered regularly interspaced short palindromic repeats. Nucleic Acids Res. 2007 May 31;

The CRISPRdb database and tools to display CRISPRs and to generate dictionaries of spacers and repeats. BMC Bioinformatics. 2007 May 23;8(1):172 ;

CRISPRcompar : a website to compare clustered regularly interspaced short palindromic repeats. Nucleic Acid Res. 2008 Jul 1


Databases improvements

New tools can be found in the database: a search for annotated CRISPR-associated genes is now possible as well as a BLAST against a library of cas genes.


Recent publications

Insight into microevolution of Yersinia pestis by clustered regularly interspaced short palindromic repeats.Cui et al. Plos ONE 2008
On-line resources for bacterial micro-evolution studies using MLVA or CRISPR typing. Biochimie. 2007 Jul 28;
CRISPRFinder: a web tool to identify clustered regularly interspaced short palindromic repeats. Nucleic Acids Res. 2007 May 31;
The CRISPRdb database and tools to display CRISPRs and to generate dictionaries of spacers and repeats. BMC Bioinformatics. 2007 May 23;8(1):172 ;
CRISPR elements in Yersinia pestis acquire new repeats by preferential uptake of bacteriophage DNA, and provide additional tools for evolutionary studies. Microbiology. 2005 Mar;151(Pt 3):653-63;