NCBI identifier Name Sensitivity (%) Stem length Loop size -Delta G [kcal/mole] -Delta G / stemloop length [kcal/mole/nucleotide] Number of Ts in the T-stretch Proteobacteria; Alphaproteobacteria; Caulobacterales; Caulobacteraceae; Caulobacter NC_002696 Caulobacter crescentus CB15 32.09 11.3 4.5 21.3 0.802 7.1 Proteobacteria; Gammaproteobacteria; Enterobacteriales; Enterobacteriaceae; Escherichia NC_000913 Escherichia coli K12 67.47 10.2 5.2 15.1 0.611 8.4 Proteobacteria; Epsilonproteobacteria; Campylobacterales; Helicobacteraceae; Helicobacter NC_000915 Helicobacter pylori 26695 84.55 9.5 6.1 9.3 0.390 9.6 NC_000921 Helicobacter pylori J99 85.71 9.4 6.0 8.9 0.382 9.6 Aquificae; Aquificales; Aquificaceae; Aquifex NC_000918 Aquifex aeolicus VF5 75.72 9.4 5.8 9.3 0.394 9.5 Cyanobacteria; Chroococcales; Synechocystis NC_000911 Synechocystis sp. PCC 6803 60.55 9.4 5.5 10.3 0.431 9.0 Spirochaetes; Spirochaetales; Spirochaetaceae; Borrelia and Treponema NC_001318 Borrelia burgdorferi B31 60.55 9.9 6.0 8.0 0.331 10.2 NC_000919 Treponema pallidum subsp. pallidum str. Nichols 51.91 10.4 5.3 11.9 0.466 8.4 Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae; Pyrococcus NC_000961 Pyrococcus horikoshii OT3 55.94 8.9 5.9 8.7 0.382 9.5 Archaea; Euryarchaeota; Archaeoglobi; Archaeoglobales; Archaeoglobaceae; Archaeoglobus NC_000917 Archaeoglobus fulgidus DSM 4304 47.36 10.1 5.9 10.3 0.396 9.2