Fig. 1
From: FixJ family regulator AcfR of Azorhizobium caulinodans is involved in symbiosis with the host plant
Multiple sequences aligment of AcfR and other HTH_LuxR response regulators of LuxR/FixJ subfamily. The selected QS LuxR-type sequences include A. tumefaciens TraR, V. fischeri LuxR, Pseudomonas aeruginosa QscR, and Salmonella enterica SidA. The selected NarL/FixJ family regulators include E. coli NarL and RcsB, Salmonella typhimurium UhpA, Methylacidiphilum infernorum CitB, and S. meliloti FixJ. Alignment was performed using BioEdit software. Completely conserved amino acids are shown on a black background. 80% conservation are indicated by a dark-grey background. Asterisks indicate six conserved residues in autoinducer binding domains of AHL-QS LuxRs, and the C terminal HTH domain is underlined. The receiver domain is shown in a rectangular box