Nucleic Acids Research, 2001, Vol. 29, No. 1 72-74
© 2001 Oxford University Press
RegulonDB (version 3.2): transcriptional regulation and operon organization in Escherichia coli K-12
Centro de Investigación sobre Fijación de Nitrógeno. UNAM A.P. 565-A Cuernavaca, Morelos 62100, México
RegulonDB is a database on mechanisms of transcription regulation and operon organization in Escherichia coli K-12. The current version has considerably increased numbers of regulatory elements such as promoters, binding sites and terminators. The complete repertoire of known and predicted DNA-binding transcriptional regulators can be considered to be included in this version. The database now distinguishes different allosteric conformations of regulatory proteins indicating the one active in binding and regulating the different promoters. A new set of operon predictions has been incorporated. The relational design has been modified accordingly. Furthermore, a major improvement is a graphic display enabling browsing of the database with a Java-based graphic user interface with three zoom-levels connected to properties of each chromosomal element. The purpose of these modifications is to make RegulonDB a useful tool and control set for transcriptome experiments. RegulonDB can be accessed on the web at the URL: http://www.cifn.unam.mx/Computational_Biology/regulondb/
* To whom correspondence should be addressed. Tel: +527 313 2063; Fax: +527 317 5581; Email: ecoli-t1{at}cifn.unam.mx Present address: Ernesto Pérez-Rueda, Université Libre de Bruxelles av F.D. Roosevelt 50-CP 160/16 B-1050 Bruxelles, Belgium
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