Analysis of promoter motifs present in light- and/or env1 -responsive genes. (A) Alignment of LRE-motifs; the extension of the motifs was limited to 50 bp, only true LRE motifs comprising the GATNC – CGATN consensus with N being the same nucleotide in both repeats were included. (B) Distribution of the respective promoter motifs among the regulatory characteristics of ENVOY as determined by Northern analysis (Figures 1 – 3). The total number of motifs present in one group was related to the number of genes of this group. A: genes upregulated by light but not in the env1PAS- strain; B: genes upregulated both by light and in the env1PAS- strain; C: genes upregulated by light, which show increased upregulation in the env1PAS- strain; D: genes showing decreased transcription upon illumination; E: genes lacking response to light, but whose transcription is impacted by env1.