| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0581 | | response regulator/anti-anti-sigma factor (TIGR) | cofit | 100 | 100 |
| o | Desulfovibrio vulgaris Miyazaki F | DvMF_1223 | | anti-sigma-factor antagonist (RefSeq) | sig. | 56 | 94 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2550 | | multi-sensor signal transduction histidine kinase (RefSeq) | insig. | 51 | 52 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0258 | | sensory box histidine kinase/response regulator (TIGR) | strong | 49 | 52 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0271 | | response regulator (TIGR) | insig. | 49 | 49 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2549 | | response regulator receiver sensor signal transduction histidine kinase (RefSeq) | insig. | 46 | 56 |
| | Dinoroseobacter shibae DFL-12 | Dshi_1081 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 43 | 52 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c13440 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | no data | 37 | 61 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2109 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 38 | 62 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2679 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 42 | 50 |
| | Pseudomonas segetis P6 | ACVTMO_RS01055 | | sigma-54-dependent transcriptional regulator | insig. | 33 | 94 |
| | Agrobacterium fabrum C58 | Atu0114 | | two component response regulator | insig. | 43 | 50 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1993 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 33 | 75 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0110 | ntrC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | cofit | 37 | 50 |
| | Escherichia coli ECOR38 | HEPCGN_22430 | atoC | acetoacetate metabolism transcriptional regulator AtoC | insig. | 39 | 49 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_3995 | | Helix-turn-helix, Fis-type | sig. | 40 | 51 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_3995 | | Helix-turn-helix, Fis-type | insig. | 40 | 51 |
| | Escherichia coli BL21 | ECD_02147 | | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein | insig. | 39 | 49 |
| | Escherichia fergusonii Becca | EFB2_01635 | | Regulatory protein AtoC | insig. | 39 | 49 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01490 | | Regulatory protein AtoC | insig. | 39 | 49 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS12965 | | acetoacetate metabolism transcriptional regulator AtoC | no data | 39 | 49 |
| | Escherichia coli BW25113 | b2220 | atoC | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein (NCBI) | insig. | 39 | 49 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2601 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 33 | 89 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF1195 | | Sigma-54 dependent response regulator | insig. | 39 | 52 |
| | Serratia liquefaciens MT49 | IAI46_24960 | | nitrogen regulation protein NR(I) | strong | 31 | 95 |
| | Azospirillum sp. SherDot2 | MPMX19_03597 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 39 | 52 |
| | Pseudomonas sp. SVBP6 | COO64_RS09545 | rssB | two-component system response regulator RssB | no data | 39 | 51 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1419 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | sig. | 39 | 61 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2455 | | Putative sensory histidine kinase YfhA | strong | 29 | 95 |
| | Rhizobium sp. OAE497 | ABIE40_RS15425 | | sigma-54 dependent transcriptional regulator | strong | 40 | 50 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1991 | | response regulator receiver protein (RefSeq) | no data | 38 | 54 |
| | Azospirillum brasilense Sp245 | AZOBR_RS18445 | | chemotaxis protein CheY | insig. | 32 | 75 |
| | Rahnella sp. WP5 | EX31_RS15880 | | nitrogen regulation protein NR(I) | strong | 31 | 95 |
| | Erwinia tracheiphila SCR3 | LU632_RS22135 | glnG | nitrogen regulation protein NR(I) | strong | 31 | 95 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0679 | luxO | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | insig. | 39 | 54 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_60 | | Serine phosphatase RsbU, regulator of sigma subunit | no data | 39 | 51 |
| | Erwinia tracheiphila HP pepo 2.2 | IJEDHG_08285 | glnG | nitrogen regulation protein NR(I) | cofit | 31 | 95 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1461 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 44 | 49 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4011 | | Serine phosphatase RsbU, regulator of sigma subunit | no data | 39 | 51 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS11960 | | sigma-54-dependent Fis family transcriptional regulator | no data | 34 | 59 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3215 | drrA | response regulator (TIGR) | insig. | 41 | 50 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0215 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 38 | 62 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_04380 | | response regulator | strong | 40 | 52 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_4350 | | nitrogen regulation protein NR(I) | insig. | 31 | 95 |
| | Sinorhizobium meliloti 1021 | SM_b21200 | | two-component response regulator protein | insig. | 41 | 50 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS07795 | | SpoIIE family protein phosphatase | no data | 39 | 51 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS07795 | | SpoIIE family protein phosphatase | no data | 39 | 51 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_01676 | | Regulator of RpoS | no data | 39 | 51 |
| | Dechlorosoma suillum PS | Dsui_3486 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 35 | 62 |
| | Enterobacter sp. TBS_079 | MPMX20_04597 | | DNA-binding transcriptional regulator NtrC | strong | 31 | 95 |
| | Methylophilus sp. DMC18 | GFF2815 | | Regulatory protein AtoC | insig. | 29 | 95 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2934 | ntrX | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 44 | 45 |
| | Dickeya dianthicola 67-19 | HGI48_RS21235 | | nitrogen regulation protein NR(I) | strong | 30 | 95 |
| | Dickeya dianthicola ME23 | DZA65_RS22210 | | nitrogen regulation protein NR(I) | strong | 30 | 95 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_00320 | | chemotaxis protein CheY | no data | 38 | 51 |
| | Lysobacter sp. OAE881 | ABIE51_RS00635 | | hybrid sensor histidine kinase/response regulator | strong | 37 | 58 |
| | Sinorhizobium meliloti 1021 | SMa1227 | | response regulator FixJ | cofit | 39 | 49 |
| | Azospirillum sp. SherDot2 | MPMX19_02733 | | Regulatory protein LuxO | insig. | 36 | 51 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS08380 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 37 | 52 |
| | Pseudomonas sp. BP01 | JOY50_RS14530 | | sigma-54 dependent transcriptional regulator | insig. | 35 | 75 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_25855 | | DNA-binding response regulator | sig. | 34 | 67 |
| | Pseudomonas putida KT2440 | PP_1401 | | C4-dicarboxylate transport transcriptional regulatory protein | strong | 34 | 75 |
| | Sphingobium sp. HT1-2 | GFF5392 | | Two-component nitrogen fixation transcriptional regulator FixJ | cofit | 32 | 94 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0539 | | sigma-54 dependent DNA-binding response regulator (TIGR) | sig. | 39 | 51 |
| | Dinoroseobacter shibae DFL-12 | Dshi_1196 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 39 | 52 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0946 | | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | sig. | 38 | 52 |
| | Pseudomonas simiae WCS417 | PS417_07720 | | chemotaxis protein CheY | no data | 38 | 51 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1544 | | response regulator receiver modulated diguanylate cyclase/phosphodiesterase with PAS/PAC sensor(s) (RefSeq) | insig. | 33 | 86 |
| | Dickeya dadantii 3937 | DDA3937_RS00125 | | nitrogen regulation protein NR(I) | cofit | 29 | 95 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0332 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 32 | 82 |
| | Pantoea sp. MT58 | IAI47_00450 | | nitrogen regulation protein NR(I) | strong | 30 | 95 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS18895 | | nitrogen regulation protein NR(I) | strong | 30 | 95 |
| | Pseudomonas sp. BP01 | JOY50_RS25185 | rssB | two-component system response regulator RssB | no data | 38 | 51 |
| | Pseudomonas putida KT2440 | PP_2165 | | Response regulator | no data | 38 | 51 |
| | Azospirillum brasilense Sp245 | AZOBR_RS30385 | | Fis family transcriptional regulator | insig. | 34 | 62 |
| | Pseudomonas orientalis W4I3 | QF045_RS10365 | | SpoIIE family protein phosphatase | no data | 38 | 51 |
| | Pseudomonas sp. SVBP6 | COO64_RS26185 | | sigma-54 dependent transcriptional regulator | insig. | 37 | 51 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_1666 | | C4-dicarboxylate transport transcriptional regulatory protein | sig. | 35 | 76 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_03805 | | C4-dicarboxylate ABC transporter | strong | 38 | 51 |
| | Pseudomonas sp. DMC3 | GFF1302 | | Regulator of RpoS | no data | 38 | 51 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2260 | | Serine phosphatase RsbU, regulator of sigma subunit | no data | 38 | 51 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_17800 | | C4-dicarboxylate ABC transporter | strong | 34 | 65 |
| | Azospirillum sp. SherDot2 | MPMX19_06089 | | Regulatory protein LuxO | insig. | 34 | 79 |
| | Dechlorosoma suillum PS | Dsui_2360 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 30 | 91 |
| | Klebsiella michiganensis M5al | BWI76_RS00385 | | nitrogen assimilation regulatory protein | strong | 30 | 94 |
| | Pseudomonas sp. RS175 | PFR28_01140 | | Regulator of RpoS | no data | 38 | 51 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_02185 | | chemotaxis protein CheY | no data | 38 | 51 |
| | Sinorhizobium meliloti 1021 | SMc01045 | | nitrogen regulation protein | no data | 34 | 61 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_09000 | | nitrogen regulation protein NR(I) | insig. | 30 | 94 |
| | Erwinia amylovora T8 | OLJFJH_05495 | | nitrogen regulation protein NR(I) | strong | 30 | 95 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS03980 | | Fis family transcriptional regulator | strong | 39 | 49 |
| | Pseudomonas sp. DMC3 | GFF5041 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | cofit | 38 | 51 |
| | Bosea sp. OAE506 | ABIE41_RS16775 | | sigma-54 dependent transcriptional regulator | no data | 37 | 54 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS26060 | | Fis family transcriptional regulator | insig. | 36 | 52 |
| | Sphingobium sp. HT1-2 | GFF5226 | | Two-component nitrogen fixation transcriptional regulator FixJ | insig. | 31 | 93 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_0135 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | no data | 31 | 71 |
| | Enterobacter sp. TBS_079 | MPMX20_03423 | | Transcriptional regulatory protein QseF | sig. | 28 | 95 |
| | Agrobacterium fabrum C58 | Atu4805 | | two component sensor kinase/response regulator hybrid | insig. | 40 | 51 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS25855 | | sigma-54 dependent transcriptional regulator | strong | 34 | 67 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS58285 | | sigma-54 dependent transcriptional regulator | strong | 34 | 67 |