capable of regulating transcription, DNA-templated transcription regulator A role that controls the rate, timing and/or magnitude of transcription of genetic information. The function of transcriptional regulators is to modulate gene expression at the transcription step so that they are expressed in the right cell at the right time and in the right amount throughout the life of the cell and the organism. IMR:0000369 (obsolete) related molecular function GO:0140110 process regulator role