FIG 1.
Xylose repressor genomic region from P. fluorescens strain Pf0-1. (A) Genetic map of the xutR-xutA region. The shaded bar represents the 188-bp intergenic region. (B) DNA sequence of the Pxut promoter upstream of Pf101_2303. The conserved operator inverted repeats are shown in boldface, and the –35 and –10 regions for the xutA promoter (Pxut) are underlined. A direct repeat of 13 bp is shown in italics. A putative ribosome binding site 9 to 12 bp upstream of the start codon is shown in lowercase. (C) Schematic diagrams of select plasmids used in this study.