| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Sphingobium sp. HT1-2 | GFF2317 | | RNA polymerase ECF-type sigma factor | cofit | 100 | 100 |
| o | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3492 | | RNA polymerase sigma factor, sigma-70 family | strong | 79 | 81 |
| | Sphingobium sp. HT1-2 | GFF4975 | | RNA polymerase ECF-type sigma factor | cofit | 68 | 78 |
| | Sphingobium sp. HT1-2 | GFF5151 | | RNA polymerase ECF-type sigma factor | cofit | 69 | 77 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3853 | | RNA polymerase sigma factor, sigma-70 family | insig. | 65 | 68 |
| | Caulobacter crescentus NA1000 | CCNA_03589 | | RNA polymerase EcfG family sigma factor sigT | strong | 56 | 70 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_03589 | | RNA polymerase EcfG family sigma factor sigT | cofit | 56 | 70 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS14775 | | sigma-70 family RNA polymerase sigma factor | strong | 53 | 80 |
| | Caulobacter crescentus NA1000 | CCNA_02977 | | RNA polymerase ECF-type sigma factor sigU | strong | 57 | 64 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_02977 | | RNA polymerase ECF-type sigma factor sigU | cofit | 57 | 64 |
| | Agrobacterium fabrum C58 | Atu4160 | | RNA polymerase sigma factor | strong | 55 | 63 |
| | Rhizobium sp. OAE497 | ABIE40_RS14450 | | RNA polymerase sigma factor | insig. | 57 | 62 |
| | Sinorhizobium meliloti 1021 | SMc01506 | | RNA polymerase sigma factor | strong | 56 | 63 |
| | Bosea sp. OAE506 | ABIE41_RS04095 | | sigma-70 family RNA polymerase sigma factor | strong | 53 | 65 |
| | Rhodopseudomonas palustris CGA009 | TX73_021900 | | sigma-70 family RNA polymerase sigma factor | strong | 54 | 60 |
| | Dinoroseobacter shibae DFL-12 | Dshi_3835 | | RNA polymerase, sigma-24 subunit, ECF subfamily (RefSeq) | insig. | 54 | 59 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c27070 | | RNA polymerase sigma factor 70 (ECF15 subgroup, ECF26 subgroup) | insig. | 50 | 67 |
| | Rhodospirillum rubrum S1H | Rru_A3287 | | Sigma-24 (FecI) (NCBI) | no data | 42 | 80 |
| | Xanthobacter sp. DMC5 | GFF2321 | | ECF RNA polymerase sigma factor EcfG | no data | 49 | 60 |
| | Sphingobium sp. HT1-2 | GFF5325 | | RNA polymerase ECF-type sigma factor | cofit | 49 | 59 |
| | Azospirillum brasilense Sp245 | AZOBR_RS06360 | | RNA polymerase subunit sigma-24 | no data | 44 | 66 |
| | Azospirillum sp. SherDot2 | MPMX19_01371 | | hypothetical protein | insig. | 44 | 63 |
| | Azospirillum brasilense Sp245 | AZOBR_RS10625 | | RNA polymerase sigma-70 factor | insig. | 44 | 61 |
| | Azospirillum sp. SherDot2 | MPMX19_00764 | | ECF RNA polymerase sigma factor EcfG | insig. | 41 | 67 |
| | Sinorhizobium meliloti 1021 | SMa0143 | | RNA polymerase ECF sigma factor | insig. | 41 | 58 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS08240 | | RNA polymerase subunit sigma-24 | sig. | 41 | 63 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_06547 | | RNA polymerase sigma-70 factor, ECF subfamily | insig. | 39 | 65 |
| | Paraburkholderia graminis OAS925 | ABIE53_002425 | | RNA polymerase sigma-70 factor (ECF subfamily) | insig. | 42 | 62 |
| | Agrobacterium fabrum C58 | Atu5490 | | ECF family RNA polymerase sigma factor | insig. | 38 | 69 |
| | Paraburkholderia graminis OAS925 | ABIE53_006215 | | RNA polymerase sigma-70 factor (ECF subfamily) | insig. | 38 | 65 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS24740 | | RNA polymerase subunit sigma-24 | sig. | 37 | 65 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS00095 | | RNA polymerase sigma factor | insig. | 38 | 64 |
| | Rhizobium sp. OAE497 | ABIE40_RS21790 | | sigma-70 family RNA polymerase sigma factor | cofit | 42 | 61 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_05124 | | RNA polymerase sigma-70 factor, ECF subfamily | insig. | 41 | 62 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS23005 | | sigma-70 family RNA polymerase sigma factor | insig. | 39 | 63 |
| | Variovorax sp. OAS795 | ABID97_RS16445 | | sigma-70 family RNA polymerase sigma factor | no data | 40 | 64 |
| | Rhizobium sp. OAE497 | ABIE40_RS27415 | | sigma-70 family RNA polymerase sigma factor | insig. | 40 | 61 |
| | Rhizobium sp. OAE497 | ABIE40_RS20320 | | sigma-70 family RNA polymerase sigma factor | insig. | 40 | 58 |
| | Sinorhizobium meliloti 1021 | SM_b21484 | | RNA polymerase sigma-E factor (sigma-24) protein | insig. | 41 | 56 |
| | Sphingobium sp. HT1-2 | GFF1466 | | RNA polymerase sigma-54 factor RpoN | cofit | 40 | 63 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS32410 | | RNA polymerase subunit sigma-24 | no data | 42 | 60 |
| | Sphingobium sp. HT1-2 | GFF2028 | | hypothetical protein | cofit | 40 | 60 |
| | Variovorax sp. SCN45 | GFF215 | | RNA polymerase sigma-54 factor RpoN | insig. | 36 | 64 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF4350 | | RNA polymerase sigma-54 factor RpoN | insig. | 39 | 63 |
| | Agrobacterium fabrum C58 | Atu1485 | | ECF family sigma factor | insig. | 38 | 63 |
| | Pseudomonas sp. DMC3 | GFF1465 | | ECF RNA polymerase sigma factor EcfG | insig. | 39 | 62 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF329 | | RNA polymerase sigma-54 factor RpoN | insig. | 39 | 63 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_05041 | | RNA polymerase sigma-70 factor, ECF subfamily | insig. | 35 | 68 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_2729 | | RNA polymerase sigma factor, sigma-70 family | insig. | 36 | 62 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_19215 | | RNA polymerase subunit sigma | sig. | 33 | 64 |
| | Azospirillum brasilense Sp245 | AZOBR_RS23735 | | RNA polymerase | no data | 37 | 59 |
| | Paraburkholderia graminis OAS925 | ABIE53_003919 | | RNA polymerase sigma-70 factor (ECF subfamily) | insig. | 34 | 58 |
| | Azospirillum sp. SherDot2 | MPMX19_01197 | | ECF RNA polymerase sigma factor EcfG | insig. | 33 | 61 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS05410 | | RNA polymerase sigma factor | strong | 33 | 64 |
| | Dickeya dadantii 3937 | DDA3937_RS11055 | | sigma-70 family RNA polymerase sigma factor | insig. | 35 | 63 |
| | Dickeya dianthicola 67-19 | HGI48_RS11075 | | sigma-70 family RNA polymerase sigma factor | insig. | 35 | 63 |
| | Alteromonas macleodii MIT1002 | MIT1002_03872 | | RNA polymerase sigma factor SigM | insig. | 34 | 61 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS02635 | | RNA polymerase sigma factor | insig. | 39 | 59 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS13315 | | hypothetical protein | insig. | 39 | 65 |
| | Azospirillum brasilense Sp245 | AZOBR_RS11020 | | RNA polymerase subunit sigma-70 | no data | 40 | 56 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_3977 | | RNA polymerase sigma-54 factor RpoN | insig. | 39 | 60 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_2582 | | RNA polymerase sigma-54 factor RpoN | insig. | 38 | 60 |
| | Pseudomonas sp. RS175 | PFR28_01251 | | ECF RNA polymerase sigma factor EcfG | insig. | 37 | 62 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_03722 | | ECF RNA polymerase sigma factor EcfG | no data | 38 | 65 |
| | Pseudomonas simiae WCS417 | PS417_17070 | | RNA polymerase subunit sigma-24 | insig. | 37 | 65 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS19010 | | sigma-70 family RNA polymerase sigma factor | insig. | 37 | 65 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS19010 | | sigma-70 family RNA polymerase sigma factor | sig. | 37 | 65 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2200 | | RNA polymerase sigma-54 factor RpoN | sig. | 37 | 61 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS10230 | | RNA polymerase sigma factor | no data | 38 | 61 |
| | Paraburkholderia graminis OAS925 | ABIE53_003943 | | RNA polymerase sigma-70 factor (ECF subfamily) | sig. | 32 | 61 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_0287 | | RNA polymerase sigma factor, sigma-70 family | strong | 31 | 68 |
| | Azospirillum sp. SherDot2 | MPMX19_00923 | | hypothetical protein | insig. | 37 | 62 |
| | Azospirillum brasilense Sp245 | AZOBR_RS14755 | | RNA polymerase sigma-70 factor | insig. | 32 | 61 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_01625 | | RNA polymerase subunit sigma-24 | insig. | 37 | 60 |
| | Ralstonia solanacearum GMI1000 | RS_RS14950 | | RNA polymerase sigma factor | no data | 38 | 57 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS07010 | | RNA polymerase sigma factor | no data | 38 | 61 |
| | Ralstonia solanacearum UW163 | UW163_RS06605 | | RNA polymerase sigma factor | no data | 38 | 61 |
| | Enterobacter sp. TBS_079 | MPMX20_03520 | | ECF RNA polymerase sigma factor EcfG | insig. | 35 | 57 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS24230 | | RNA polymerase sigma factor | strong | 29 | 61 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_1191 | | RNA polymerase sigma factor, sigma-70 family | insig. | 36 | 57 |
| | Pectobacterium carotovorum WPP14 | HER17_RS09715 | | sigma-70 family RNA polymerase sigma factor | cofit | 31 | 62 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_10915 | | RNA polymerase subunit sigma | strong | 30 | 62 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS12225 | | RNA polymerase sigma factor | cofit | 39 | 56 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS02660 | | RNA polymerase sigma factor | insig. | 36 | 60 |
| | Sphingobium sp. HT1-2 | GFF4551 | | hypothetical protein | cofit | 34 | 59 |
| | Mycobacterium tuberculosis H37Rv | Rv3223c | | Alternative RNA polymerase sigma-E factor (sigma-24) SigH (RPOE) | insig. | 31 | 70 |
| | Pantoea sp. MT58 | IAI47_21640 | | sigma-70 family RNA polymerase sigma factor | insig. | 37 | 56 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_20305 | | RNA polymerase subunit sigma-24 | no data | 37 | 59 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3411 | | RNA polymerase sigma factor, sigma-70 family | insig. | 34 | 60 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS02840 | | RNA polymerase sigma factor | sig. | 31 | 62 |
| | Agrobacterium fabrum C58 | Atu5283 | | ECF family RNA polymerase sigma factor | no data | 39 | 45 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS16950 | | RNA polymerase sigma factor | strong | 30 | 62 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT2569 | | RNA polymerase ECF-type sigma factor (NCBI ptt file) | insig. | 31 | 62 |
| | Sinorhizobium meliloti 1021 | SMc04051 | | RNA polymerase sigma-E factor (sigma-24) protein | insig. | 39 | 58 |
| | Serratia liquefaciens MT49 | IAI46_22980 | | RNA polymerase sigma factor | insig. | 38 | 55 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_03979 | | Sigma-70 region 2 | strong | 31 | 62 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS16550 | | RNA polymerase sigma factor | strong | 29 | 57 |
| | Azospirillum sp. SherDot2 | MPMX19_05043 | | hypothetical protein | insig. | 33 | 59 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_01848 | | Sigma-70 region 2 | strong | 30 | 62 |
| | Sinorhizobium meliloti 1021 | SMc02713 | | RNA polymerase sigma-E factor (sigma-24) protein | strong | 30 | 66 |