The negative transcription regulator of the ica locus. TcaR. regulates proteins involved in the biosynthesis of poly-N-acetylglucosamine (PNAG). Absence of TcaR increases PNAG production and promotes biofilm formation in Staphylococci. https://www.nacrack.com/quick-buy-Whelen-Arges-Remote-Spotlight-amazing-deal/