| Organism | Ratio1 | Gene1 | Name1 | Description1 | Ratio2 | Gene2 | Name2 | Description2 | Cofit | Rank |
| Vibrio cholerae E7946 ATCC 55056 | 1.0 | CSW01_07225 | | cytochrome-c oxidase, cbb3-type subunit II | 1.0 | CSW01_05050 | | transcription/translation regulatory transformer protein RfaH | 0.43 | 11 |
| Shewanella amazonensis SB2B | 0.76 | Sama_1792 | | cytochrome c oxidase, cbb3-type, subunit II (RefSeq) | 0.26 | Sama_2265 | | transcriptional activator rfaH, putative (RefSeq) | low | > 62 |
| Shewanella oneidensis MR-1 | 0.74 | SO2363 | ccoO | cytochrome c oxidase, cbb3-type, subunit II (NCBI ptt file) | 0.25 | SO3194 | | transcriptional activator rfaH, putative (NCBI ptt file) | 0.42 | 48 |
| Shewanella loihica PV-4 | 0.74 | Shew_1986 | | cytochrome c oxidase, cbb3-type, subunit II (RefSeq) | 0.21 | Shew_1398 | | NusG antitermination factor (RefSeq) | — | — |
| Shewanella sp. ANA-3 | 0.74 | Shewana3_2108 | | cytochrome c oxidase, cbb3-type, subunit II (RefSeq) | 0.23 | Shewana3_1374 | | transcription antitermination protein nusG (RefSeq) | — | — |
| Kangiella aquimarina DSM 16071 | 0.70 | B158DRAFT_1967 | | cytochrome c oxidase, cbb3-type, subunit II | 0.36 | B158DRAFT_2343 | | transcriptional activator RfaH | low | > 40 |
| Pseudomonas stutzeri RCH2 | 0.70 | Psest_2528 | | cytochrome c oxidase, cbb3-type, subunit II | 0.25 | Psest_2605 | | transcriptional activator RfaH | — | — |
| Pseudomonas sp. DMC3 | 0.68 | GFF728 | | hypothetical protein | 0.28 | GFF3566 | | Transcription antitermination protein RfaH | — | — |
| Pseudomonas fluorescens FW300-N1B4 | 0.67 | Pf1N1B4_3878 | | Cytochrome c oxidase subunit CcoO (EC 1.9.3.1) | 0.30 | Pf1N1B4_5950 | | Transcriptional activator RfaH | — | — |
| Pseudomonas lactucae CFBP13502 | 0.66 | GEMAOFIL_04290 | | hypothetical protein | 0.28 | GEMAOFIL_02604 | | Transcription antitermination protein RfaH | low | > 93 |
| Marinobacter adhaerens HP15 | 0.63 | HP15_2108 | | cytochrome c oxidase, cbb3-type, subunit II | 0.23 | HP15_p187g93 | | transcriptional activator RfaH | — | — |
| Pseudomonas syringae pv. syringae B728a ΔmexB | 0.62 | Psyr_3414 | | Cytochrome C oxidase, mono-heme subunit/FixO | 0.25 | Psyr_3226 | | Transcriptional activator RfaH | — | — |
| Pseudomonas syringae pv. syringae B728a | 0.62 | Psyr_3414 | | Cytochrome C oxidase, mono-heme subunit/FixO | 0.25 | Psyr_3226 | | Transcriptional activator RfaH | — | — |
| Herbaspirillum seropedicae SmR1 | 0.59 | HSERO_RS16050 | | peptidase S41 | 0.29 | HSERO_RS02425 | | transcriptional activator | low | > 78 |
| Magnetospirillum magneticum AMB-1 | 0.50 | AMB_RS22075 | | cytochrome-c oxidase, cbb3-type subunit II | 0.18 | AMB_RS00245 | | transcriptional activator RfaH | — | — |
Not shown: 48 genomes with orthologs for CSW01_07225 only; 28 genomes with orthologs for CSW01_05050 only