| 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_07260 | | type I secretion system permease/ATPase | 0.42 | 14 |
| Pseudomonas aeruginosa PA14 | 0.71 | IKLFDK_07425 | | cytochrome-c oxidase cbb3-type subunit II | 0.18 | IKLFDK_21335 | | ABC transporter | low | > 100 |
| Pseudomonas putida KT2440 | 0.69 | PP_4251 | | cytochrome c oxidase subunit, cbb3-type | 0.42 | PP_4927 | | Cyclolysin secretion/processing ATP-binding protein CyaB | low | > 96 |
| Hydrogenophaga sp. GW460-11-11-14-LB1 | 0.64 | GFF4136 | | Cytochrome c oxidase subunit CcoO (EC 1.9.3.1) | 0.42 | GFF1396 | | cyclolysin secretion ATP-binding protein | low | > 90 |
| Ralstonia solanacearum UW163 | 0.62 | UW163_RS13080 | | cytochrome-c oxidase, cbb3-type subunit II | 0.40 | UW163_RS22515 | | type I secretion system permease/ATPase | — | — |
| Pseudomonas syringae pv. syringae B728a ΔmexB | 0.62 | Psyr_3414 | | Cytochrome C oxidase, mono-heme subunit/FixO | 0.42 | Psyr_3076 | | Type I secretion system ATPase, HlyB | — | — |
| Pseudomonas syringae pv. syringae B728a | 0.62 | Psyr_3414 | | Cytochrome C oxidase, mono-heme subunit/FixO | 0.42 | Psyr_3076 | | Type I secretion system ATPase, HlyB | — | — |
| Ralstonia solanacearum IBSBF1503 | 0.62 | RALBFv3_RS15620 | | cytochrome-c oxidase, cbb3-type subunit II | 0.40 | RALBFv3_RS21985 | | type I secretion system permease/ATPase | low | > 76 |
| Ralstonia solanacearum PSI07 | 0.62 | RPSI07_RS17735 | | cytochrome-c oxidase, cbb3-type subunit II | 0.40 | RPSI07_RS01230 | | type I secretion system permease/ATPase | low | > 81 |
| Ralstonia solanacearum GMI1000 | 0.62 | RS_RS06400 | | cytochrome-c oxidase, cbb3-type subunit II | 0.40 | RS_RS18565 | | type I secretion system permease/ATPase | low | > 80 |
| Variovorax sp. SCN45 | 0.59 | GFF6963 | | Cytochrome c oxidase (cbb3-type) subunit CcoO (EC 1.9.3.1) | 0.39 | GFF1930 | | RTX toxin transporter, ATP-binding protein | low | > 127 |
| Herbaspirillum seropedicae SmR1 | 0.59 | HSERO_RS16050 | | peptidase S41 | 0.39 | HSERO_RS14455 | | peptidase C39 | low | > 78 |
| Rhodanobacter sp. FW510-T8 | 0.54 | OKGIIK_07660 | ccoO | cytochrome-c oxidase, cbb3-type subunit II | 0.40 | OKGIIK_05220 | | Peptidase C39 | low | > 53 |
| Azospirillum sp. SherDot2 | 0.49 | MPMX19_00207 | | hypothetical protein | 0.41 | MPMX19_05206 | | Toxin RTX-I translocation ATP-binding protein | low | > 112 |
| Azospirillum brasilense Sp245 | 0.48 | AZOBR_RS01175 | | peptidase S41 | 0.27 | AZOBR_RS33445 | | peptidase C39 | — | — |
Not shown: 48 genomes with orthologs for CSW01_07225 only; 4 genomes with orthologs for CSW01_07260 only