HTH-type transcriptional regulatory protein TyrR

UniProtKB accession:  P44694

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Transcriptional regulator of the TyrR regulon, which includes a number of genes coding for proteins involved in the biosynthesis or transport of the three aromatic amino acids, phenylalanine, tyrosine and tryptophan. These three aromatic amino acids act as effectors which bind to the TyrR protein to form an active regulatory protein (By similarity). Acts by binding specifically to TyrR boxes in the promoter region of the target genes (PubMed:9226720). Can efficiently repress the transcription of the aroF promoter, but lacks the ability to function as a transcriptional activator (PubMed:9226720).