Figure 1.

Genomic organization of the biotin biosynthetic genes and regulatory elements. DV (Desulfovibrio vulgaris); DD (Desulfovibrio desulfuricans G20); GM (Geobacter metallireducens); GS (Geobacter sulfurreducens PCA); DA (Desulfuromonas species); DP (Desulfotalea psychrophila).

Rodionov et al. Genome Biology 2004 5:R90   doi:10.1186/gb-2004-5-11-r90
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