Fig 1.
Schematic diagram of arginine decarboxylase mutations. The genes and associated regulatory sequences for the Δ(adiA-adiC)-4806, ΔPadiA203::TT araC ParaBAD adiA, ΔPadiA276::TT rhaSR PrhaBAD adiA, and Δ(PadiY-adiY-PadiC)-119 adiC mutations are shown above, along with the archetypal strain number. The wild-type arginine decarboxylase locus (adi) of S. Typhi Ty2 is depicted for comparative purposes. The diagram is approximately to scale. The promoters and transcription terminator are labeled on the figure.