DOOR: a database for prokaryotic operons

1. Querying the database: the database provides a search capability for a user to find desired operons and associated information through multiple querying methods. 2. Searching for similar operons: the database provides a search capability for a user to find operons that have similar composition and structure to a query operon. 3. Prediction of cis-regulatory motifs: the database provides a capability for motif identification in the promoter regions of a user-specified group of possibly coregulated operons, using motif-finding tools. 4. Operons for RNA genes: the database includes operons for RNA genes. 5. OperonWiki: the database provides a wiki page (OperonWiki) to facilitate interactions between users and the developer of the database. We believe that DOOR provides a useful resource to many biologists working on bacteria and archaea, which can be accessed at http://csbl1.bmb.uga.edu/OperonDB.