“…Though not commonly studied in the context of one- or two-component signaling, SpoIIE is known to de-phosphorylate the sulfate transporter and anti-sigma factor antagonist (STAS) domain containing protein, SpoIIAA, in the process of regulation of a sporulation-specific transcription factor, σ F [93] , [94] , [95] . In addition to these three main groups, we also identified several oxygenases, including bacterial luciferase, ABM monooxygenase, hemeoxygenase and p450 which might be responsible for sensing and degrading respective chemicals such as flavin, antibiotics, and heme [96] , [97] , [98] .…”