Transcription Regulatory Regions Database (TRRD): Description of Transcription Regulation and the Main Capabilities of the Database

The main goal of TRRD (http://www.bionet.nsc.ru/trrd/) construction is a complete and precise description of the structure—function organization of the regions of eukaryotic genes involved in transcription regulation. The current release of TRRD contains information on 2186 genes, 3254 regulatory units, 9480 transcription factor binding sites, 14 locus control regions, and 13 173 expression patterns. The data inputted into TRRD have been extracted from 7301 scientific papers. They are stored in seven SRS tables: TRRDGENES, TRRDUNITS, TRRDEXP, TRRDSITES, TRRDFACTORS, TRRDLCR, and TRRDBIB. The main tool for search of and navigation through TRRD is the Sequence Retrieval System (SRS). A hierarchical structure of dictionaries and thesauri has been developed to provide additional options for data retrieval.