TorS is part of the trimethylamine-N-oxide (TMAO) reductase (Tor) pathway, which consists TorT, a periplasmic binding protein that binds TMAO; TorS, a sensor histidine kinase that forms a complex with TorT, and TorR, the response regulator. The Tor pathway is involved in regulating a cellular response to trimethylamine-N-oxide (TMAO), a terminal electron receptor in anaerobic respiration. TorS consists of a periplasmic sensor domain, as well as a HAMP domain, a histidine kinase domain, and a receiver domain.
Jiyao W et al.(2023). "The conserved domain database in 2023.",