Figure 2

Nucleotide sequences of the 5'-upstream regions of the three genes, Afe_1009, Afe_1437, and Afe_2172, which encode sHSPs in A. ferrooxidans. Transcription start sites predicted by the BPROM program and promoter sequences recognized by the σ³² factor are indicated by black triangles and by shadowed-bold letters, respectively. The first codon of the coding sequence is indicated by boxed letters. The total information content of the σ³² boxes (-35 and -10) is shown in bits.