Fig. 5.

Sequences and structural features of the AtCYS1 and AtCYS2 promoters. The sequences of the 5′-flanking region of AtCYS1 (a) and AtCYS2 (b) are shown together with a partial amino acid sequence. The numbering of nucleotides relative to the putative transcriptional initiation site (−1) is shown above the sequences. The putative TATA box is identified by double underlined. The deduced amino acid sequences of the first exon are indicated by single letter codes in bold. Putative cis-regulatory promoter sequences are underlined. c Schematic representation of the AtCYS1 and AtCYS2 promoters. The locations of abiotic responsive cis-elements of interest were identified using the PLACE and PlantCARE databases. The symbols of each cis-element are annotated below