| Ctra | Chlamydia trachomatis D/UW-3/CX |
| Cmu | Chlamydia muridarum Nigg |
| Cab | Chlamydophila abortus S26/3 |
| Cca | Chlamydophila caviae GPIC |
| Cfe | Chlamydophila felis Fe/C-56 |
| Cpn | Chlamydophila pneumoniae CWL029 |
| Pam | Candidatus Protochlamydia amoebophila UWE25 |
| Eco | Escherichia coli K12 |
| Bpe | Blochmannia pennsylvanicus BPEN |
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* at least three trp in the 6 residues' window size
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| * p:P Trp ratio: where P is derived from % Trp of Proteome |
| * p:bbh_P Trp ratio: where P is derived from % Trp of Bidirectional Best Hits Proteins. |