The Transcription Regulatory Regions Database (TRRD) is a curated database
designed for accumulation of experimental data on extended regulatory regio
ns of eukaryotic genes, the regulatory elements they contain, i.e., transcr
iption factor binding sites, promoters, enhancers, silencers, etc., and exp
ression patterns of the genes. Release 4.1 of TRRD offers a number of signi
ficant improvements, in particular, a more detailed description of transcri
ption factor binding sites, transcription factors per se, and gene expressi
on patterns in a computer-readable format. In addition, the new TRRD releas
e provides considerably more references to other molecular biological datab
ases. TRRD 4.1 is installed under SRS and is available through the WWW at h
ttp://www.bionet.nsc.ru/trrd/.