The TRRD format allows to describe the modular structure of transcription regulatory regions and the hierarchy of their constituent regulatory units. Over 1500 scientific publications have been processed to obtain these data. TRRD is installed under the SRS to provide easy information retrieval and integration with other databases and computer systems for information processing. Transcription factor binding sites and composite elements are presented graphically. Clicking the field title provides comments on the information described in the field.
Several options allow a number of different site representations.