Comparing transcriptome by means of DNA microarrays of Streptococcus pneumoniae D39 versus D39SM in medium without uracil

Comparing transcriptome by means of DNA microarrays of Streptococcus pneumoniae D39 versus D39SM in medium without uracil. Details of this experiment are described in a paper with the title 'Interplay between capsule expression and uracil metabolism in Streptococcus pneumoniae' One condition with two strains (D39 and D39SM), including a dye swap