Additional file 6.

Table S4. Statistical analysis of the COG classes enriched in policistronic transcripts. Operons identified in all the four transcriptional analyses were considered in columns (C) (number of genes belonging to each COG class) and (D) (p-value), while those identified only in three, two or one experiment are reported respectively in columns (G-H), (I-J), (K-L). Graph reported below refers to the percentage of genes that are organized in operons in all the experiments considered (column E), results were calculated relatively to the total number of genes per class (column C). Description of COG classes is reported in column (M). Classes having p-values lower than 0.5% were reported in bold in table and in red in the graph.

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Campanaro et al. BMC Genomics 2012 13:567   doi:10.1186/1471-2164-13-567