| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Variovorax sp. OAS795 | ABID97_RS05375 | | response regulator | no data | 100 | 100 |
| o | Variovorax sp. SCN45 | GFF5875 | | Probable nitrogen assimilation regulatory protein NtrX | no data | 96 | 100 |
| o | Acidovorax sp. GW101-3H11 | Ac3H11_4464 | | Probable two component response regulator transcription regulator protein | no data | 74 | 99 |
| o | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF1786 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | no data | 71 | 100 |
| o | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_02234 | | two component transcriptional regulator, Fis family | no data | 66 | 98 |
| o | Cupriavidus basilensis FW507-4G11 | RR42_RS20435 | | XRE family transcriptional regulator | no data | 64 | 98 |
| o | Paraburkholderia graminis OAS925 | ABIE53_000395 | | DNA-binding NtrC family response regulator | no data | 66 | 98 |
| o | Ralstonia solanacearum PSI07 | RPSI07_RS23560 | | two-component system response regulator | no data | 66 | 98 |
| o | Paraburkholderia sabiae LMG 24235 | QEN71_RS00190 | | response regulator transcription factor EsaR | no data | 69 | 98 |
| o | Burkholderia phytofirmans PsJN | BPHYT_RS01490 | | XRE family transcriptional regulator | no data | 65 | 98 |
| o | Herbaspirillum seropedicae SmR1 | HSERO_RS00340 | | XRE family transcriptional regulator | no data | 64 | 96 |
| o | Castellaniella sp019104865 MT123 | ABCV34_RS14210 | | response regulator | no data | 62 | 99 |
| o | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS09805 | | two-component system response regulator | no data | 66 | 98 |
| o | Ralstonia solanacearum UW163 | UW163_RS03775 | | two-component system response regulator | no data | 66 | 98 |
| o | Ralstonia solanacearum GMI1000 | RS_RS00390 | | two-component system response regulator | no data | 64 | 98 |
| o | Ralstonia sp. UNC404CL21Col | ABZR87_RS04935 | | response regulator | no data | 64 | 98 |
| | Methylophilus sp. DMC18 | GFF1502 | | DNA-binding transcriptional regulator NtrC | no data | 77 | 48 |
| | Dechlorosoma suillum PS | Dsui_0809 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | no data | 67 | 57 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1461 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 48 | 53 |
| | Caulobacter crescentus NA1000 | CCNA_01817 | | nitrogen assimilation regulatory protein ntrX | strong | 42 | 70 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_01817 | | nitrogen assimilation regulatory protein ntrX | strong | 42 | 70 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS04820 | | sigma-54 dependent transcriptional regulator | no data | 37 | 70 |
| | Rhizobium sp. OAE497 | ABIE40_RS09100 | | sigma-54 dependent transcriptional regulator | no data | 43 | 53 |
| | Agrobacterium fabrum C58 | Atu1448 | | two component response regulator | no data | 42 | 53 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c14810 | | nitrogen assimilation regulatory protein NtrX | no data | 39 | 54 |
| | Sphingobium sp. HT1-2 | GFF1146 | | NtrX | no data | 45 | 53 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS11960 | | sigma-54-dependent Fis family transcriptional regulator | no data | 42 | 53 |
| | Sinorhizobium meliloti 1021 | SMc01045 | | nitrogen regulation protein | no data | 42 | 53 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2934 | ntrX | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 46 | 45 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS09195 | | Fis family transcriptional regulator | strong | 41 | 52 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_0135 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | no data | 41 | 64 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_04380 | | response regulator | strong | 43 | 52 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS10015 | | sigma-54 dependent transcriptional regulator | sig. | 39 | 60 |
| | Cellulophaga baltica 18 | M666_RS19210 | | sigma-54 dependent transcriptional regulator | insig. | 42 | 52 |
| | Bosea sp. OAE506 | ABIE41_RS16775 | | sigma-54 dependent transcriptional regulator | no data | 42 | 53 |
| | Rhodopseudomonas palustris CGA009 | TX73_013430 | | sigma-54 dependent transcriptional regulator | no data | 36 | 71 |
| | Xanthobacter sp. DMC5 | GFF845 | | DNA-binding transcriptional regulator NtrC | no data | 42 | 50 |
| | Rhodospirillum rubrum S1H | Rru_A1680 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | no data | 42 | 50 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1993 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 37 | 56 |
| | Azospirillum brasilense Sp245 | AZOBR_RS14440 | | ATPase AAA | no data | 44 | 52 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS22860 | | chemotaxis protein CheY | insig. | 34 | 63 |
| | Azospirillum sp. SherDot2 | MPMX19_01114 | | Regulatory protein AtoC | no data | 44 | 52 |
| | Dinoroseobacter shibae DFL-12 | Dshi_1572 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 35 | 55 |
| | Paraburkholderia graminis OAS925 | ABIE53_004228 | | two-component system OmpR family response regulator | insig. | 33 | 63 |
| | Dechlorosoma suillum PS | Dsui_2360 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 42 | 51 |
| | Pseudomonas segetis P6 | ACVTMO_RS01055 | | sigma-54-dependent transcriptional regulator | insig. | 38 | 51 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS07980 | | nitrogen regulation protein NR(I) | strong | 40 | 55 |
| | Dechlorosoma suillum PS | Dsui_0809 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | no data | 66 | 25 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_03647 | | Sigma-54 interaction domain protein | cofit | 34 | 53 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_03071 | | two-component system, OmpR family, response regulator | no data | 32 | 63 |
| | Methylophilus sp. DMC18 | GFF1502 | | DNA-binding transcriptional regulator NtrC | no data | 42 | 36 |
| | Rahnella sp. WP5 | EX31_RS20615 | | two-component system response regulator GlrR | insig. | 41 | 52 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS07730 | | nitrogen regulation protein NR(I) | cofit | 39 | 55 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_00240 | | two component, sigma54 specific, transcriptional regulator, NtrC subfamily, Fis family | strong | 35 | 56 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3828 | | two component transcriptional regulator, LuxR family | insig. | 39 | 50 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS05575 | | Fis family transcriptional regulator | strong | 35 | 56 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_28370 | | two-component system response regulator QseF/GlrR | insig. | 40 | 52 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS23515 | | sigma-54 dependent transcriptional regulator | strong | 37 | 47 |
| | Pseudomonas sp. BP01 | JOY50_RS14530 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 52 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS02120 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 31 | 67 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0332 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 33 | 68 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2455 | | Putative sensory histidine kinase YfhA | strong | 39 | 50 |
| | Escherichia coli BL21 | ECD_02147 | | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein | insig. | 37 | 52 |
| | Escherichia fergusonii Becca | EFB2_01635 | | Regulatory protein AtoC | insig. | 37 | 52 |
| | Escherichia coli ECOR38 | HEPCGN_22430 | atoC | acetoacetate metabolism transcriptional regulator AtoC | insig. | 37 | 52 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01490 | | Regulatory protein AtoC | insig. | 37 | 52 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS12965 | | acetoacetate metabolism transcriptional regulator AtoC | no data | 37 | 52 |
| | Escherichia coli BW25113 | b2220 | atoC | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein (NCBI) | insig. | 37 | 52 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS07835 | | sigma-54-dependent Fis family transcriptional regulator | strong | 36 | 47 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_0196 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 39 | 52 |
| | Ralstonia solanacearum GMI1000 | RS_RS25105 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 37 | 47 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0271 | | response regulator (TIGR) | insig. | 40 | 49 |
| | Variovorax sp. OAS795 | ABID97_RS01990 | | response regulator | no data | 38 | 55 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2394 | ntrC1 | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | sig. | 37 | 51 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS23315 | | sigma-54-dependent Fis family transcriptional regulator | strong | 37 | 47 |
| | Ralstonia solanacearum UW163 | UW163_RS16565 | | sigma-54-dependent Fis family transcriptional regulator | strong | 37 | 47 |
| | Paraburkholderia graminis OAS925 | ABIE53_001365 | | DNA-binding NtrC family response regulator | strong | 34 | 56 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT3801 | | rteB, two-component system response regulator (NCBI ptt file) | strong | 32 | 62 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_4011 | | Putative sensory histidine kinase YfhA | sig. | 43 | 50 |
| | Pseudomonas putida KT2440 | PP_1401 | | C4-dicarboxylate transport transcriptional regulatory protein | strong | 38 | 52 |
| | Pseudomonas stutzeri RCH2 | Psest_4132 | | alpha-ketoglutarate DNA-binding response regulator (mifR) (from data) | strong | 37 | 50 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_5088 | | regulatory protein, LuxR:Response regulator receiver | strong | 36 | 55 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_5088 | | regulatory protein, LuxR:Response regulator receiver | insig. | 36 | 55 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS02780 | | sigma-54-dependent Fis family transcriptional regulator | strong | 36 | 52 |
| | Serratia liquefaciens MT49 | IAI46_19460 | | two-component system response regulator GlrR | sig. | 39 | 51 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_15905 | | transcriptional regulator | insig. | 31 | 72 |
| | Pseudomonas sp. SVBP6 | COO64_RS07975 | | sigma-54 dependent transcriptional regulator | insig. | 36 | 67 |
| | Dinoroseobacter shibae DFL-12 | Dshi_1081 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 40 | 46 |
| | Klebsiella michiganensis M5al | BWI76_RS01605 | | transcriptional regulatory protein ZraR | insig. | 38 | 50 |
| | Pseudomonas sp. DMC3 | GFF4000 | | Regulatory protein AtoC | cofit | 34 | 66 |
| | Pseudomonas sp. DMC3 | GFF5041 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | cofit | 37 | 51 |
| | Methylophilus sp. DMC18 | GFF1426 | | Transcriptional regulatory protein ZraR | insig. | 32 | 54 |
| | Pectobacterium carotovorum WPP14 | HER17_RS05925 | | two-component system response regulator GlrR | cofit | 40 | 51 |
| | Enterobacter sp. TBS_079 | MPMX20_03423 | | Transcriptional regulatory protein QseF | sig. | 38 | 50 |
| | Escherichia coli ECOR38 | HEPCGN_10745 | pgtA | two-component system response regulator PgtA | insig. | 35 | 54 |
| | Dickeya dadantii 3937 | DDA3937_RS15640 | | two-component system response regulator GlrR | cofit | 35 | 64 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0110 | ntrC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | cofit | 30 | 63 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS01750 | | sigma-54 dependent transcriptional regulator | strong | 39 | 51 |
| | Pseudomonas orientalis W4I3 | QF045_RS24815 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 49 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_685 | | Nitrogen regulation protein NR(I) | no data | 36 | 51 |