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. 2008 Dec 1;191(3):782–794. doi: 10.1128/JB.00965-08

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FIG. 2. — (A to E) Contrasting transcriptional regulation of two putative molybdopterin oxidoreductases. Microarray gene expression profiles for a molybdopterin oxidoreductase complex (PAE1263, PAE1264, and PAE1265) and other genes upregulated during growth on arsenate (A) and a molybdopterin oxidoreductase complex (PAE2859, PAE2860, and PAE2861) upregulated during anoxia (B). Northern analysis of PAE1265 (C), PAE1264 (D), and PAE2859 (E). (F) P. calidifontis genome alignment showing truncated (Pcal_1601-trunc) and full-length (Pcal_1601-full) orthologs for PAE1265 identified before and after selection for growth of P. calidifontis on arsenate, respectively. The conserved protein domains predicted by Pfam are shown in magenta. The black hatch marks show primary sequence similarity to P. aerophilum and P. arsenaticum in multiple genome alignments. No Add, no terminal electron acceptor added.