Table 1

Genes with or without SD in E. coli K12

Number of genes

Percentage of genes with SD

Percentage of genes without SD


All E. coli genes

4,133

69.66

30.34


Highly expressed genes (HEG) from E. coli (1)

253

81.03

18.97


Horizontally transferred genes (HGT) from E. coli (2)

310

68.39

31.61


Mean and standard deviation of 100 sets of 300 genes randomly selected from E. coli

300

69.04 ± 2.58

30.96 ± 2.58


Number of genes and percentage of genes with the Shine-Dalgarno motif from E. coli K12.

(1) HEG extracted from the HEG-DB http://genomes.urv.es/HEG-DB webcite[39]

(2) HGT extracted from the HGT-DB http://genomes.urv.es/HGT-DB webcite[40]

Abbreviations: SD, Shine-Dalgarno

Pallejà et al. BMC Genomics 2009 10:281   doi:10.1186/1471-2164-10-281

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