| Organism | Ratio1 | Gene1 | Name1 | Description1 | Ratio2 | Gene2 | Name2 | Description2 | Cofit | Rank |
| Agrobacterium fabrum C58 | 1.0 | Atu3296 | | two component response regulator for C4-dicarboxylate transport | 1.0 | Atu3905 | | nitrate ABC transporter substrate-binding protein | 0.29 | 12 |
| Sinorhizobium meliloti 1021 | 0.70 | SM_b20613 | | C4-dicarboxylate transport transcriptional regulator | 0.75 | SMa0585 | | nitrate ABC transporter substrate-binding protein | low | > 103 |
| Rhizobium sp. OAE497 | 0.67 | ABIE40_RS26335 | | sigma-54 dependent transcriptional regulator | 0.81 | ABIE40_RS25545 | | CmpA/NrtA family ABC transporter substrate-binding protein | low | > 107 |
| Xanthobacter sp. DMC5 | 0.61 | GFF3675 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | 0.74 | GFF1974 | | Nitrate/nitrite binding protein NrtA | — | — |
| Pseudomonas stutzeri RCH2 | 0.52 | Psest_4132 | | alpha-ketoglutarate DNA-binding response regulator (mifR) (from data) | 0.65 | Psest_0150 | | ABC-type nitrate/sulfonate/bicarbonate transport systems, periplasmic components | low | > 67 |
| Herbaspirillum seropedicae SmR1 | 0.51 | HSERO_RS16810 | | Fis family transcriptional regulator | 0.32 | HSERO_RS06055 | | nitrate transporter | low | > 78 |
| Pseudomonas segetis P6 | 0.50 | MPMX49_00215 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | 0.26 | MPMX49_02607 | | Nitrate/nitrite binding protein NrtA | low | > 75 |
| Pseudomonas fluorescens FW300-N2E3 | 0.50 | AO353_03805 | | C4-dicarboxylate ABC transporter | 0.25 | AO353_00785 | | nitrate transporter | low | > 101 |
| Pseudomonas lactucae CFBP13502 | 0.49 | GEMAOFIL_04682 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | 0.27 | GEMAOFIL_04337 | | Nitrate/nitrite binding protein NrtA | low | > 96 |
| Ralstonia sp. UNC404CL21Col | 0.49 | ABZR87_RS16305 | | sigma-54 dependent transcriptional regulator | 0.31 | ABZR87_RS06900 | | CmpA/NrtA family ABC transporter substrate-binding protein | low | > 80 |
| Pseudomonas aeruginosa MRSN321 | 0.49 | DY961_RS25855 | | sigma-54 dependent transcriptional regulator | 0.25 | DY961_RS20620 | | CmpA/NrtA family ABC transporter substrate-binding protein | low | > 100 |
| Pseudomonas aeruginosa PUPa3 | 0.49 | DQ20_RS58285 | | sigma-54 dependent transcriptional regulator | 0.25 | DQ20_RS54705 | | CmpA/NrtA family ABC transporter substrate-binding protein | low | > 101 |
| Pseudomonas aeruginosa PA14 | 0.49 | IKLFDK_25855 | | DNA-binding response regulator | 0.24 | IKLFDK_08640 | | nitrate transporter | low | > 98 |
| Pseudomonas fluorescens FW300-N1B4 | 0.49 | Pf1N1B4_685 | | Nitrogen regulation protein NR(I) | 0.30 | Pf1N1B4_5096 | | Nitrate ABC transporter, nitrate-binding protein | — | — |
| Pseudomonas sp. DMC3 | 0.49 | GFF5041 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | 0.27 | GFF5251 | | Nitrate/nitrite binding protein NrtA | low | > 89 |
| Pseudomonas fluorescens GW456-L13 | 0.49 | PfGW456L13_1806 | | Nitrogen regulation protein NR(I) | 0.27 | PfGW456L13_4097 | | Nitrate ABC transporter, nitrate-binding protein | low | > 87 |
| Marinobacter adhaerens HP15 | 0.49 | HP15_725 | | two component, sigma54 specific, transcriptional regulator, Fis family | 0.21 | HP15_1012 | | nitrate transporter component, NrtA | low | > 73 |
| Pseudomonas simiae WCS417 | 0.48 | PS417_22645 | | C4-dicarboxylate ABC transporter | 0.26 | PS417_20960 | | Nitrate-binding regulatory protein (nasS) (from data) | low | > 88 |
| Pseudomonas orientalis W4I3 | 0.48 | QF045_RS24815 | | sigma-54 dependent transcriptional regulator | 0.26 | QF045_RS22770 | | CmpA/NrtA family ABC transporter substrate-binding protein | low | > 93 |
| Dechlorosoma suillum PS | 0.48 | Dsui_3486 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | 0.31 | Dsui_1831 | | ABC-type nitrate/sulfonate/bicarbonate transport system, periplasmic component | low | > 51 |
| Pseudomonas fluorescens FW300-N2C3 | 0.48 | AO356_17800 | | C4-dicarboxylate ABC transporter | 0.26 | AO356_02750 | | nitrate transporter | low | > 104 |
| Pseudomonas fluorescens SBW25-INTG | 0.48 | PFLU_RS24280 | | sigma-54-dependent Fis family transcriptional regulator | 0.26 | PFLU_RS22570 | | ABC transporter substrate-binding protein | low | > 109 |
| Pseudomonas fluorescens SBW25 | 0.48 | PFLU_RS24280 | | sigma-54-dependent Fis family transcriptional regulator | 0.26 | PFLU_RS22570 | | ABC transporter substrate-binding protein | low | > 109 |
| Pseudomonas sp. RS175 | 0.48 | PFR28_03462 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | 0.26 | PFR28_01053 | | Nitrate/nitrite binding protein NrtA | low | > 88 |
| Cupriavidus basilensis FW507-4G11 | 0.48 | RR42_RS01705 | | Fis family transcriptional regulator | 0.32 | RR42_RS01955 | | nitrate transporter | low | > 128 |
| Ralstonia solanacearum GMI1000 | 0.48 | RS_RS01635 | | sigma-54-dependent Fis family transcriptional regulator | 0.31 | RS_RS01875 | | nitrate ABC transporter substrate-binding protein | low | > 80 |
| Pseudomonas fluorescens FW300-N2E2 | 0.48 | Pf6N2E2_5487 | | Nitrogen regulation protein NR(I) | 0.27 | Pf6N2E2_2374 | | Nitrate ABC transporter, nitrate-binding protein | low | > 103 |
| Ralstonia solanacearum PSI07 | 0.47 | RPSI07_RS22520 | | sigma-54-dependent Fis family transcriptional regulator | 0.31 | RPSI07_RS22270 | | nitrate ABC transporter substrate-binding protein | low | > 81 |
| Ralstonia solanacearum IBSBF1503 | 0.47 | RALBFv3_RS10795 | | sigma-54-dependent Fis family transcriptional regulator | 0.31 | RALBFv3_RS11035 | | nitrate ABC transporter substrate-binding protein | low | > 76 |
| Ralstonia solanacearum UW163 | 0.47 | UW163_RS02785 | | sigma-54-dependent Fis family transcriptional regulator | 0.31 | UW163_RS02545 | | nitrate ABC transporter substrate-binding protein | — | — |
| Pseudomonas sp. S08-1 | 0.47 | OH686_13325 | | Two component, Sigma-54 Specific, central transcriptional regulator of acidic amino acid uptake | 0.32 | OH686_04015 | | Nitrate ABC transporter, substrate-binding protein | low | > 80 |
| Pseudomonas sp. SVBP6 | 0.47 | COO64_RS16760 | | sigma-54 dependent transcriptional regulator | 0.24 | COO64_RS05310 | | CmpA/NrtA family ABC transporter substrate-binding protein | low | > 93 |
| Paraburkholderia bryophila 376MFSha3.1 | 0.47 | H281DRAFT_02037 | | two component, sigma54 specific, transcriptional regulator, NtrC subfamily, Fis family | 0.24 | H281DRAFT_01219 | | nitrate/nitrite transport system substrate-binding protein | low | > 103 |
| Pseudomonas putida KT2440 | 0.47 | PP_1066 | | C4-dicarboxylate transport transcriptional regulatory protein | 0.25 | PP_2094 | | putative Nitrate-binding protein NasS | low | > 96 |
| Pseudomonas sp. BP01 | 0.47 | JOY50_RS14825 | | sigma-54 dependent transcriptional regulator | 0.25 | JOY50_RS22110 | | CmpA/NrtA family ABC transporter substrate-binding protein | low | > 84 |
| Paraburkholderia graminis OAS925 | 0.47 | ABIE53_000648 | | two-component system C4-dicarboxylate transport response regulator DctD | 0.24 | ABIE53_005718 | | ABC-type nitrate/sulfonate/bicarbonate transport system substrate-binding protein | low | > 113 |
| Pseudomonas syringae pv. syringae B728a | 0.47 | Psyr_3995 | | Helix-turn-helix, Fis-type | 0.27 | Psyr_2105 | | conserved hypothetical protein | low | > 86 |
| Pseudomonas syringae pv. syringae B728a ΔmexB | 0.47 | Psyr_3995 | | Helix-turn-helix, Fis-type | 0.27 | Psyr_2105 | | conserved hypothetical protein | low | > 86 |
| Burkholderia phytofirmans PsJN | 0.46 | BPHYT_RS02520 | | Fis family transcriptional regulator | 0.24 | BPHYT_RS28170 | | nitrate ABC transporter substrate-binding protein | low | > 109 |
| Paraburkholderia sabiae LMG 24235 | 0.46 | QEN71_RS01375 | | sigma-54 dependent transcriptional regulator | 0.24 | QEN71_RS12555 | | CmpA/NrtA family ABC transporter substrate-binding protein | low | > 153 |
| Variovorax sp. OAS795 | 0.43 | ABID97_RS26605 | | sigma-54 dependent transcriptional regulator | 0.30 | ABID97_RS20560 | | CmpA/NrtA family ABC transporter substrate-binding protein | low | > 91 |
| Variovorax sp. SCN45 | 0.42 | GFF1691 | | Two component, Sigma-54 Specific, central transcriptional regulator of acidic amino acid uptake | 0.30 | GFF4737 | | Nitrate ABC transporter, substrate-binding protein | low | > 127 |
| Klebsiella michiganensis M5al | 0.35 | BWI76_RS21250 | | two-component system response regulator GlrR | 0.34 | BWI76_RS17380 | | nitrate transporter component | low | > 92 |
| Klebsiella pneumoniae MKP103 | 0.34 | KDGMDA_28370 | | two-component system response regulator QseF/GlrR | 0.33 | KDGMDA_24605 | | nitrate/bicarbonate ABC transporter substrate-binding protein | low | > 95 |
| Pectobacterium carotovorum WPP14 | 0.34 | HER17_RS05925 | | two-component system response regulator GlrR | 0.33 | HER17_RS07315 | | ABC transporter substrate-binding protein | low | > 75 |
| Rahnella sp. WP5 | 0.34 | EX31_RS20615 | | two-component system response regulator GlrR | 0.29 | EX31_RS09125 | | ABC transporter substrate-binding protein | low | > 89 |
| Dickeya dadantii 3937 | 0.34 | DDA3937_RS15640 | | two-component system response regulator GlrR | 0.30 | DDA3937_RS14105 | | ABC transporter substrate-binding protein | low | > 74 |
| Dickeya dianthicola ME23 | 0.34 | DZA65_RS16815 | | two-component system response regulator GlrR | 0.30 | DZA65_RS14765 | | ABC transporter substrate-binding protein | low | > 75 |
| Dickeya dianthicola 67-19 | 0.33 | HGI48_RS15735 | | two-component system response regulator GlrR | 0.30 | HGI48_RS14105 | | ABC transporter substrate-binding protein | low | > 71 |
| Pantoea sp. MT58 | 0.33 | IAI47_04945 | | two-component system response regulator GlrR | 0.33 | IAI47_11185 | | ABC transporter substrate-binding protein | low | > 76 |
| Enterobacter sp. TBS_079 | 0.33 | MPMX20_03423 | | Transcriptional regulatory protein QseF | 0.32 | MPMX20_02624 | | Nitrate/nitrite binding protein NrtA | low | > 85 |
| Enterobacter asburiae PDN3 | 0.33 | EX28DRAFT_0096 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | 0.32 | EX28DRAFT_0842 | | ABC-type nitrate/sulfonate/bicarbonate transport systems, periplasmic components | 0.51 | 49 |
Not shown: 38 genomes with orthologs for Atu3296 only; 10 genomes with orthologs for Atu3905 only