Expression of genes for iron acquisition is increased in tan strains.

Legend: * for multigene clusters, the range of expression change values is given. Partial list of genes showing significant expression changes in the M. xanthus tan variant and three tan mutants (12 datasets: four biological replicates with triplicate technical replicates) in DNA tiling array studies relative to the WT-Y variant (data not shown). Expression patterns consistent in four different tan M. xanthus strains (data for individual genes are provided in Table S1). MXAN ID and Description refers to annotation; both are derived from the M. xanthus genome [43]; fold change represents the increase (A) or decrease (B) in expression and is derived from coefficient value.