| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Xanthobacter sp. DMC5 | GFF4433 | | Hydrogenase transcriptional regulatory protein hupR1 | insig. | 100 | 100 |
| o | Azospirillum sp. SherDot2 | MPMX19_05290 | | Hydrogenase transcriptional regulatory protein hupR1 | insig. | 70 | 99 |
| o | Dechlorosoma suillum PS | Dsui_1154 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 56 | 98 |
| o | Magnetospirillum magneticum AMB-1 | AMB_RS11550 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 53 | 99 |
| o | Variovorax sp. OAS795 | ABID97_RS13590 | | sigma-54 dependent transcriptional regulator | insig. | 53 | 97 |
| o | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF2210 | | Hydrogenase transcriptional regulatory protein HoxA | insig. | 53 | 98 |
| o | Rhodopseudomonas palustris CGA009 | TX73_005040 | | sigma-54 dependent transcriptional regulator | insig. | 53 | 99 |
| o | Rhodospirillum rubrum S1H | Rru_A1170 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | insig. | 49 | 98 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3220 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 40 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2200 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 40 | 98 |
| | Pseudomonas orientalis W4I3 | QF045_RS08450 | | sigma-54 dependent transcriptional regulator | insig. | 39 | 97 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 38 | 97 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS05610 | | sigma-54-dependent Fis family transcriptional regulator | strong | 38 | 97 |
| | Pseudomonas simiae WCS417 | PS417_05525 | | Fis family transcriptional regulator | strong | 38 | 97 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_16225 | | Fis family transcriptional regulator | insig. | 38 | 97 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_01292 | | Regulatory protein AtoC | cofit | 38 | 97 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_09510 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 38 | 98 |
| | Shewanella loihica PV-4 | Shew_2341 | | two component, sigma54 specific, Fis family transcriptional regulator (RefSeq) | insig. | 39 | 97 |
| | Variovorax sp. OAS795 | ABID97_RS06460 | | sigma 54-interacting transcriptional regulator | cofit | 42 | 79 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS23710 | pilR;inference=COORDINATES | two-component system response regulator PilR | strong | 39 | 98 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0946 | | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | sig. | 39 | 98 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_00790 | | two-component response regulator PilR | strong | 39 | 98 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS56175 | pilR;inference=COORDINATES | two-component system response regulator PilR | strong | 39 | 98 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS23090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 38 | 96 |
| | Escherichia fergusonii Becca | EFB2_04606 | | Transcriptional regulatory protein ZraR | insig. | 38 | 96 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4188 | | Response regulator of zinc sigma-54-dependent two-component system | insig. | 38 | 96 |
| | Escherichia coli BW25113 | b4004 | zraR | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein (NCBI) | insig. | 38 | 96 |
| | Escherichia coli ECOR27 | NOLOHH_05465 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 96 |
| | Escherichia coli BL21 | ECD_03881 | | fused DNA-binding response regulator in two-component regulatory system with ZraS: response regulator/sigma54 interaction protein | insig. | 38 | 96 |
| | Escherichia coli ECOR38 | HEPCGN_11960 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 96 |
| | Escherichia coli ECRC62 | BNILDI_06055 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 96 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS04160 | | sigma-54-dependent Fis family transcriptional regulator | sig. | 36 | 97 |
| | Dickeya dadantii 3937 | DDA3937_RS15640 | | two-component system response regulator GlrR | cofit | 42 | 80 |
| | Pseudomonas sp. S08-1 | OH686_16390 | | Type IV fimbriae expression regulatory protein PilR | cofit | 38 | 98 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF610 | | Putative sensory histidine kinase YfhA | insig. | 42 | 80 |
| | Variovorax sp. SCN45 | GFF7323 | | Transcriptional response regulatory protein GlrR | insig. | 41 | 79 |
| | Escherichia coli ECRC100 | OKFHMN_13320 | zraR | sigma-54-dependent response regulator transcription factor ZraR | cofit | 37 | 96 |
| | Escherichia coli ECRC101 | MCAODC_03820 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 96 |
| | Escherichia coli ECRC102 | NIAGMN_11070 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 96 |
| | Escherichia coli ECRC99 | KEDOAH_14840 | zraR | sigma-54-dependent response regulator transcription factor ZraR | no data | 37 | 96 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_04045 | | Transcriptional regulatory protein ZraR | insig. | 37 | 96 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_0722 | | Two-component response regulator PilR | insig. | 38 | 98 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_0722 | | Two-component response regulator PilR | insig. | 38 | 98 |
| | Pseudomonas stutzeri RCH2 | Psest_0705 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 37 | 98 |
| | Azospirillum sp. SherDot2 | MPMX19_03461 | | Regulatory protein AtoC | insig. | 37 | 98 |
| | Dickeya dianthicola ME23 | DZA65_RS16815 | | two-component system response regulator GlrR | insig. | 42 | 79 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS17060 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 35 | 97 |
| | Escherichia coli ECRC98 | JDDGAC_16945 | zraR | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 96 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS14380 | | sigma-54 dependent transcriptional regulator | insig. | 37 | 97 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS12650 | | sigma-54 dependent transcriptional regulator | insig. | 35 | 97 |
| | Dickeya dianthicola 67-19 | HGI48_RS15735 | | two-component system response regulator GlrR | insig. | 41 | 80 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_28370 | | two-component system response regulator QseF/GlrR | insig. | 42 | 80 |
| | Klebsiella pneumoniae MRSN742743 | KFA93_RS04790 | glrR;go_function=ATP | two-component system response regulator GlrR | sig. | 42 | 80 |
| | Pseudomonas segetis P6 | ACVTMO_RS19460 | | sigma-54-dependent transcriptional regulator | cofit | 37 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1360 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 42 | 82 |
| | Alteromonas macleodii MIT1002 | MIT1002_01326 | | Quorum-sensing regulator protein F | insig. | 38 | 97 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_16520 | | DNA-binding response regulator | insig. | 37 | 97 |
| | Escherichia fergusonii Becca | EFB2_01635 | | Regulatory protein AtoC | insig. | 37 | 97 |
| | Escherichia coli ECOR38 | HEPCGN_22430 | atoC | acetoacetate metabolism transcriptional regulator AtoC | insig. | 37 | 97 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS12965 | | acetoacetate metabolism transcriptional regulator AtoC | no data | 37 | 97 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2455 | | Putative sensory histidine kinase YfhA | strong | 37 | 98 |
| | Escherichia coli BL21 | ECD_02147 | | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein | insig. | 36 | 97 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01490 | | Regulatory protein AtoC | insig. | 36 | 97 |
| | Escherichia coli BW25113 | b2220 | atoC | fused response regulator of ato operon, in two-component system with AtoS: response regulator/sigma54 interaction protein (NCBI) | insig. | 36 | 97 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS01040 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 33 | 97 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_2818 | | Type IV fimbriae expression regulatory protein PilR | insig. | 36 | 98 |
| | Serratia liquefaciens MT49 | IAI46_19460 | | two-component system response regulator GlrR | sig. | 41 | 82 |
| | Enterobacter sp. TBS_079 | MPMX20_03423 | | Transcriptional regulatory protein QseF | sig. | 40 | 82 |
| | Lysobacter sp. OAE881 | ABIE51_RS04850 | | sigma-54 dependent transcriptional regulator | strong | 39 | 97 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_0096 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | sig. | 37 | 98 |
| | Pseudomonas sp. DMC3 | GFF4000 | | Regulatory protein AtoC | cofit | 36 | 98 |
| | Caulobacter crescentus NA1000 | CCNA_03424 | | AAA-family response regulator tacA | strong | 42 | 79 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_03424 | | AAA-family response regulator tacA | cofit | 42 | 79 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS09115 | | sigma-54 dependent transcriptional regulator | insig. | 39 | 88 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1461 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | no data | 37 | 97 |
| | Cellulophaga baltica 18 | M666_RS03195 | | sigma-54 dependent transcriptional regulator | insig. | 34 | 97 |
| | Erwinia tracheiphila HP pepo 2.2 | IJEDHG_02930 | qseF | two-component system response regulator QseF/GlrR | cofit | 42 | 80 |
| | Erwinia tracheiphila SCR3 | LU632_RS17930 | glrR | two-component system response regulator GlrR | insig. | 42 | 80 |
| | Klebsiella michiganensis M5al | BWI76_RS21250 | | two-component system response regulator GlrR | strong | 40 | 82 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0823 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 37 | 97 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2934 | ntrX | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | no data | 38 | 94 |
| | Rahnella sp. WP5 | EX31_RS20615 | | two-component system response regulator GlrR | insig. | 37 | 97 |
| | Xanthobacter sp. DMC5 | GFF4834 | | Regulatory protein AtoC | insig. | 37 | 97 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_01730 | atoC | sigma-54-dependent Fis family transcriptional regulator | cofit | 36 | 97 |
| | Azospirillum sp. SherDot2 | MPMX19_04251 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 38 | 98 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5122 | | Type IV fimbriae expression regulatory protein PilR | insig. | 37 | 98 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_4019 | | Sigma-54 dependent transcriptional regulator | sig. | 36 | 97 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_15905 | | transcriptional regulator | insig. | 37 | 98 |
| | Klebsiella michiganensis M5al | BWI76_RS01605 | | transcriptional regulatory protein ZraR | insig. | 38 | 96 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS05020 | | sigma-54 dependent transcriptional regulator | strong | 36 | 97 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_14200 | | transcriptional regulator | insig. | 36 | 98 |
| | Escherichia coli BL21 | ECD_02446 | | response regulator regulating glmY sRNA in two-component system with sensor protein GlrK | sig. | 41 | 82 |
| | Escherichia coli ECRC100 | OKFHMN_21495 | qseF | two-component system response regulator QseF/GlrR | cofit | 41 | 82 |
| | Escherichia coli ECRC101 | MCAODC_12025 | qseF | two-component system response regulator QseF/GlrR | cofit | 41 | 82 |
| | Escherichia coli ECRC102 | NIAGMN_19265 | qseF | two-component system response regulator QseF/GlrR | cofit | 41 | 82 |
| | Escherichia coli ECRC98 | JDDGAC_25160 | qseF | two-component system response regulator QseF/GlrR | cofit | 41 | 82 |
| | Escherichia coli ECRC99 | KEDOAH_06725 | qseF | two-component system response regulator QseF/GlrR | no data | 41 | 82 |
| | Escherichia coli BW25113 | b2554 | yfhA | predicted DNA-binding response regulator in two-component system (NCBI) | sig. | 41 | 82 |
| | Erwinia amylovora T8 | OLJFJH_10330 | | two-component system response regulator QseF/GlrR | cofit | 40 | 82 |
| o | Kangiella aquimarina DSM 16071 | B158DRAFT_0521 | | PEP-CTERM-box response regulator transcription factor | strong | 37 | 98 |
| | Pectobacterium carotovorum WPP14 | HER17_RS05925 | | two-component system response regulator GlrR | cofit | 40 | 83 |
| | Shewanella amazonensis SB2B | Sama_1549 | | response regulator receiver protein (RefSeq) | insig. | 38 | 97 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_10090 | | sigma-54-dependent response regulator transcription factor ZraR | insig. | 37 | 96 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS14835 | | two-component system response regulator GlrR | cofit | 37 | 97 |
| | Pantoea sp. MT58 | IAI47_04945 | | two-component system response regulator GlrR | sig. | 37 | 97 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0110 | ntrC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | cofit | 38 | 97 |
| | Klebsiella pneumoniae MRSN742743 | KFA93_RS24385 | zraR;go_function=sequence-specific | sigma-54-dependent response regulator transcription factor ZraR | insig. | 36 | 96 |
| | Escherichia fergusonii Becca | EFB2_01342 | | Transcriptional regulatory protein QseF | insig. | 40 | 82 |
| | Escherichia coli ECOR27 | NOLOHH_13170 | qseF | two-component system response regulator QseF/GlrR | strong | 40 | 82 |
| | Escherichia coli ECRC62 | BNILDI_11970 | qseF | two-component system response regulator QseF/GlrR | strong | 40 | 82 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_01153 | | Transcriptional regulatory protein GlrR | insig. | 40 | 82 |
| | Escherichia coli ECOR38 | HEPCGN_20640 | qseF | two-component system response regulator QseF/GlrR | strong | 40 | 82 |
| | Cellulophaga baltica 18 | M666_RS19210 | | sigma-54 dependent transcriptional regulator | insig. | 39 | 81 |
| | Pseudomonas sp. RS175 | PFR28_03751 | | Regulatory protein AtoC | insig. | 37 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1260 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 36 | 97 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS14455 | | two-component system response regulator GlrR | strong | 40 | 82 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS03655 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 37 | 97 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS01705 | | Fis family transcriptional regulator | insig. | 37 | 97 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS00090 | | sigma-54 dependent transcriptional regulator | cofit | 34 | 96 |
| | Cellulophaga baltica 18 | M666_RS02825 | | sigma-54 dependent transcriptional regulator | strong | 34 | 96 |
| | Bosea sp. OAE506 | ABIE41_RS06145 | | sigma-54 dependent transcriptional regulator | sig. | 35 | 98 |
| | Pseudomonas sp. RS175 | PFR28_03462 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | strong | 39 | 97 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2095 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 42 | 79 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0539 | | sigma-54 dependent DNA-binding response regulator (TIGR) | sig. | 37 | 97 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_1489 | | Type IV fimbriae expression regulatory protein PilR | insig. | 36 | 98 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS19085 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 33 | 97 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_4011 | | Putative sensory histidine kinase YfhA | sig. | 39 | 79 |
| | Marinobacter adhaerens HP15 | HP15_1891 | | two component, sigma54 specific, transcriptional regulator, Fis family | insig. | 37 | 94 |
| | Rhizobium sp. OAE497 | ABIE40_RS16175 | | sigma-54 dependent transcriptional regulator | strong | 38 | 97 |
| | Azospirillum brasilense Sp245 | AZOBR_RS21130 | | Fis family transcriptional regulator | insig. | 37 | 98 |
| | Marinobacter adhaerens HP15 | HP15_328 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 36 | 99 |
| | Pseudomonas segetis P6 | ACVTMO_RS01055 | | sigma-54-dependent transcriptional regulator | insig. | 37 | 98 |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.1353.1 | | Type IV fimbriae expression regulatory protein PilR | sig. | 37 | 92 |
| | Marinobacter adhaerens HP15 | HP15_523 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 35 | 97 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2109 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 39 | 97 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1993 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | sig. | 37 | 97 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS04990 | | sigma-54 dependent transcriptional regulator | cofit | 35 | 97 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_01571 | | Sigma-54 interaction domain protein | insig. | 35 | 98 |
| | Dechlorosoma suillum PS | Dsui_2360 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 40 | 79 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU0118 | ntrC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | insig. | 37 | 97 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS22520 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 36 | 97 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS04800 | | sigma-54 dependent transcriptional regulator | cofit | 36 | 97 |
| | Pseudomonas sp. DMC3 | GFF2447 | | Regulatory protein AtoC | cofit | 38 | 96 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS10795 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 36 | 97 |
| | Ralstonia solanacearum UW163 | UW163_RS02785 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 36 | 97 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS11070 | | sigma-54 dependent transcriptional regulator | cofit | 35 | 97 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_26000 | | sigma-54-dependent response regulator transcription factor AlgB | sig. | 38 | 97 |
| | Agrobacterium fabrum C58 | Atu3764 | | sigma 54 dependent transcriptional activator | sig. | 37 | 97 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS09195 | | Fis family transcriptional regulator | strong | 35 | 97 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS25715 | algB;inference=COORDINATES | sigma-54-dependent response regulator transcription factor AlgB | cofit | 38 | 97 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS58145 | algB;inference=COORDINATES | sigma-54-dependent response regulator transcription factor AlgB | sig. | 38 | 97 |
| | Sphingobium sp. HT1-2 | GFF1148 | | Nitrogen regulation protein NR(I), GlnG (=NtrC) | strong | 37 | 97 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT2433 | | two-component system response regulator (NCBI ptt file) | sig. | 35 | 97 |
| | Paraburkholderia graminis OAS925 | ABIE53_000648 | | two-component system C4-dicarboxylate transport response regulator DctD | insig. | 38 | 93 |
| | Pseudomonas segetis P6 | ACVTMO_RS06070 | | sigma-54-dependent transcriptional regulator | no data | 37 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2149 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 36 | 97 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS23710 | | response regulator GlrR | insig. | 41 | 77 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_25855 | | DNA-binding response regulator | sig. | 37 | 99 |
| | Sinorhizobium meliloti 1021 | SMc04011 | | sigma-54-dependent transcription regulator protein | insig. | 36 | 97 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_0831 | | Two-component response regulator CbrB | sig. | 40 | 82 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_0831 | | Two-component response regulator CbrB | no data | 40 | 82 |
| | Rhodospirillum rubrum S1H | Rru_A1385 | | Two Component, Sigma54 Specific, Transcriptional Regulator, Fis family (NCBI) | cofit | 36 | 97 |
| | Ralstonia solanacearum GMI1000 | RS_RS01635 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 35 | 97 |
| | Pseudomonas sp. BP01 | JOY50_RS27675 | | sigma-54 dependent transcriptional regulator | cofit | 36 | 98 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_18670 | | Fis family transcriptional regulator | strong | 38 | 96 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS25855 | | sigma-54 dependent transcriptional regulator | strong | 37 | 99 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS58285 | | sigma-54 dependent transcriptional regulator | strong | 37 | 99 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS06635 | | sigma-54 dependent transcriptional regulator | strong | 35 | 98 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_4079 | | Nitrogen regulation protein NtrX | insig. | 38 | 97 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS21785 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 39 | 96 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS21785 | | sigma-54-dependent Fis family transcriptional regulator | cofit | 39 | 96 |
| | Dechlorosoma suillum PS | Dsui_0150 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 35 | 97 |
| | Methylophilus sp. DMC18 | GFF2024 | | DNA-binding transcriptional regulator NtrC | strong | 34 | 97 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_16075 | | Fis family transcriptional regulator | strong | 39 | 82 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS20000 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 33 | 98 |
| | Pseudomonas putida KT2440 | PP_4696 | | Nitrogen regulation protein NR(I) | strong | 39 | 82 |
| | Azospirillum sp. SherDot2 | MPMX19_04512 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 38 | 97 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5156 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 40 | 82 |
| | Pseudomonas simiae WCS417 | PS417_19815 | | Fis family transcriptional regulator | no data | 39 | 96 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_1806 | | Nitrogen regulation protein NR(I) | strong | 38 | 98 |
| | Variovorax sp. SCN45 | GFF4432 | | Two-component system response regulator protein | strong | 36 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0700 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | insig. | 35 | 97 |
| | Pseudomonas sp. DMC3 | GFF4030 | | Transcriptional regulatory protein ZraR | strong | 40 | 82 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_0196 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | strong | 37 | 80 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS02520 | | Fis family transcriptional regulator | strong | 37 | 93 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_04380 | | response regulator | strong | 39 | 80 |
| | Alteromonas macleodii MIT1002 | MIT1002_03048 | | Transcriptional regulatory protein ZraR | insig. | 38 | 86 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04682 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | cofit | 38 | 98 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5487 | | Nitrogen regulation protein NR(I) | strong | 38 | 98 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_2858 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 39 | 82 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_5565 | | Two component, Sigma-54 Specific, central transcriptional regulator of acidic amino acid uptake | insig. | 35 | 98 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_2601 | | two component, sigma54 specific, transcriptional regulator, Fis family (RefSeq) | strong | 37 | 98 |
| | Pseudomonas sp. S08-1 | OH686_13325 | | Two component, Sigma-54 Specific, central transcriptional regulator of acidic amino acid uptake | cofit | 36 | 98 |
| | Dechlorosoma suillum PS | Dsui_3486 | | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains | cofit | 36 | 97 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_17800 | | C4-dicarboxylate ABC transporter | strong | 38 | 98 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_03647 | | Sigma-54 interaction domain protein | cofit | 34 | 97 |
| | Pseudomonas sp. SVBP6 | COO64_RS14675 | | sigma-54 dependent transcriptional regulator | insig. | 44 | 68 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF595 | | two component, sigma54 specific, transcriptional regulator, Fis family | strong | 37 | 97 |
| | Azospirillum sp. SherDot2 | MPMX19_03597 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | insig. | 35 | 97 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS02780 | | sigma-54-dependent Fis family transcriptional regulator | strong | 35 | 97 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_18205 | | Fis family transcriptional regulator | insig. | 35 | 98 |
| | Acinetobacter radioresistens SK82 | MPMX26_00162 | | Regulatory protein AtoC | cofit | 34 | 98 |
| | Pseudomonas sp. S08-1 | OH686_17260 | | Two-component sensor CbrB: intrcellular carbon:nitrogen balance | strong | 39 | 82 |
| | Pseudomonas sp. RS175 | PFR28_03718 | | Transcriptional regulatory protein ZraR | strong | 39 | 82 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_02037 | | two component, sigma54 specific, transcriptional regulator, NtrC subfamily, Fis family | cofit | 36 | 93 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4355 | | Flagellar regulatory protein FleQ | sig. | 38 | 96 |
| | Pseudomonas orientalis W4I3 | QF045_RS21945 | | sigma-54 dependent transcriptional regulator | insig. | 38 | 96 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04161 | | Regulatory protein AtoC | cofit | 38 | 96 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU1419 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | sig. | 36 | 97 |
| | Acinetobacter baumannii LAC-4 | RR41_RS17800 | | sigma-54 dependent transcriptional regulator | insig. | 34 | 98 |
| | Pseudomonas sp. SVBP6 | COO64_RS15090 | | sigma-54 dependent transcriptional regulator | strong | 40 | 82 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS09370 | cbrB;inference=COORDINATES | two-component system response regulator CbrB | strong | 39 | 81 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_29980 | | two-component system response regulator CbrB | strong | 39 | 81 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS52660 | cbrB;inference=COORDINATES | two-component system response regulator CbrB | strong | 39 | 81 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2595 | | Flagellar regulatory protein FleQ | sig. | 38 | 96 |
| | Azospirillum brasilense Sp245 | AZOBR_RS18445 | | chemotaxis protein CheY | insig. | 37 | 98 |
| | Pseudomonas sp. SVBP6 | COO64_RS21290 | | sigma-54 dependent transcriptional regulator | insig. | 39 | 90 |
| | Pseudomonas sp. DMC3 | GFF5041 | | C4-dicarboxylate transport transcriptional regulatory protein DctD | cofit | 37 | 98 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS10015 | | sigma-54 dependent transcriptional regulator | sig. | 34 | 98 |
| | Pseudomonas simiae WCS417 | PS417_22645 | | C4-dicarboxylate ABC transporter | sig. | 38 | 98 |
| | Pseudomonas sp. S08-1 | OH686_12145 | | Alginate biosynthesis two-component system response regulator AlgB | cofit | 40 | 79 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_04930 | | Transcriptional regulatory protein ZraR | cofit | 39 | 82 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_14400 | | Fis family transcriptional regulator | strong | 39 | 82 |
| | Sphingobium sp. HT1-2 | GFF2313 | | Two-component system response regulator protein | insig. | 37 | 98 |
| | Pseudomonas putida KT2440 | PP_3419 | | Sigma-54 dependent transcriptional regulator/response regulator | sig. | 35 | 98 |
| | Pseudomonas segetis P6 | ACVTMO_RS01485 | algB | sigma-54-dependent response regulator transcription factor AlgB | insig. | 40 | 80 |
| | Agrobacterium fabrum C58 | Atu3296 | | two component response regulator for C4-dicarboxylate transport | strong | 36 | 97 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS02120 | | sigma-54-dependent Fis family transcriptional regulator | insig. | 35 | 97 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS13700 | | Fis family transcriptional regulator | insig. | 35 | 98 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_4775 | | Two component, Sigma-54 Specific, central transcriptional regulator of acidic amino acid uptake | strong | 34 | 98 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS25735 | | sigma-54-dependent Fis family transcriptional regulator | strong | 39 | 82 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS25735 | | sigma-54-dependent Fis family transcriptional regulator | strong | 39 | 82 |
| | Azospirillum brasilense Sp245 | AZOBR_RS30385 | | Fis family transcriptional regulator | insig. | 37 | 98 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_0263 | | Two-component response regulator AlgB | sig. | 41 | 79 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_0263 | | Two-component response regulator AlgB | sig. | 41 | 79 |
| | Pseudomonas orientalis W4I3 | QF045_RS26155 | | sigma-54 dependent transcriptional regulator | strong | 39 | 82 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_03845 | | Fis family transcriptional regulator | cofit | 38 | 96 |
| | Pseudomonas stutzeri RCH2 | Psest_1767 | | Response regulator containing CheY-like receiver, AAA-type ATPase, and DNA-binding domains | insig. | 37 | 96 |
| | Castellaniella sp019104865 MT123 | ABCV34_RS02725 | | sigma-54 dependent transcriptional regulator | insig. | 36 | 93 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS14460 | | sigma-54 dependent transcriptional regulator | insig. | 34 | 97 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU3305 | atoC | sigma-54 dependent transcriptional regulator/response regulator (TIGR) | strong | 38 | 98 |
| | Pseudomonas orientalis W4I3 | QF045_RS24815 | | sigma-54 dependent transcriptional regulator | insig. | 37 | 98 |
| | Pseudomonas sp. BP01 | JOY50_RS00695 | | sigma-54 dependent transcriptional regulator | insig. | 37 | 96 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT3801 | | rteB, two-component system response regulator (NCBI ptt file) | strong | 33 | 97 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS07540 | | sigma-54 dependent transcriptional regulator | insig. | 35 | 98 |
| | Pseudomonas segetis P6 | ACVTMO_RS01120 | | sigma-54 dependent transcriptional regulator | insig. | 46 | 62 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_10980 | | chemotaxis protein CheY | insig. | 40 | 79 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_03805 | | C4-dicarboxylate ABC transporter | strong | 37 | 98 |
| | Pseudomonas sp. SVBP6 | COO64_RS16760 | | sigma-54 dependent transcriptional regulator | insig. | 35 | 98 |
| | Pseudomonas sp. BP01 | JOY50_RS23625 | | sigma-54 dependent transcriptional regulator | no data | 35 | 98 |