| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_05315 | | RNA polymerase subunit sigma | insig. | 100 | 100 |
| o | Shewanella sp. ANA-3 | Shewana3_1453 | | RNA polymerase sigma factor (RefSeq) | sig. | 61 | 95 |
| o | Shewanella amazonensis SB2B | Sama_2175 | | RNA polymerase sigma factor (RefSeq) | strong | 62 | 95 |
| o | Shewanella loihica PV-4 | Shew_2433 | | RNA polymerase sigma factor (RefSeq) | no data | 62 | 94 |
| o | Shewanella oneidensis MR-1 | SO3096 | | RNA polymerase sigma-70 factor, ECF subfamily (NCBI ptt file) | strong | 59 | 95 |
| o | Alteromonas macleodii MIT1002 | MIT1002_01278 | | RNA polymerase sigma factor SigV | insig. | 64 | 88 |
| | Variovorax sp. OAS795 | ABID97_RS28845 | | RNA polymerase sigma factor | insig. | 31 | 80 |
| | Sphingobium sp. HT1-2 | GFF4975 | | RNA polymerase ECF-type sigma factor | cofit | 31 | 82 |
| o | Pseudomonas putida KT2440 | PP_2888 | | putative ECF sigma factor PrtI | no data | 35 | 88 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_19215 | | RNA polymerase subunit sigma | sig. | 31 | 90 |
| | Azospirillum brasilense Sp245 | AZOBR_RS10625 | | RNA polymerase sigma-70 factor | insig. | 35 | 78 |
| o | Burkholderia phytofirmans PsJN | BPHYT_RS08240 | | RNA polymerase subunit sigma-24 | sig. | 34 | 86 |
| o | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF325 | | RNA polymerase sigma-70 factor, ECF subfamily | no data | 31 | 86 |
| o | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_05124 | | RNA polymerase sigma-70 factor, ECF subfamily | insig. | 33 | 86 |
| | Sphingobium sp. HT1-2 | GFF5151 | | RNA polymerase ECF-type sigma factor | cofit | 30 | 82 |
| | Dinoroseobacter shibae DFL-12 | Dshi_3835 | | RNA polymerase, sigma-24 subunit, ECF subfamily (RefSeq) | insig. | 33 | 74 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_0287 | | RNA polymerase sigma factor, sigma-70 family | strong | 30 | 89 |
| o | Paraburkholderia graminis OAS925 | ABIE53_002425 | | RNA polymerase sigma-70 factor (ECF subfamily) | insig. | 32 | 86 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3492 | | RNA polymerase sigma factor, sigma-70 family | strong | 35 | 82 |
| | Agrobacterium fabrum C58 | Atu4160 | | RNA polymerase sigma factor | strong | 33 | 74 |
| | Sinorhizobium meliloti 1021 | SM_b20592 | | RNA polymerase sigma factor | insig. | 32 | 86 |
| | Pseudomonas sp. SVBP6 | COO64_RS10855 | | sigma-70 family RNA polymerase sigma factor | insig. | 33 | 78 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_01848 | | Sigma-70 region 2 | strong | 35 | 73 |
| | Paraburkholderia graminis OAS925 | ABIE53_002003 | | RNA polymerase sigma factor (sigma-70 family) | sig. | 29 | 84 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS08845 | | RNA polymerase sigma factor | insig. | 28 | 90 |
| o | Pseudomonas sp. BP01 | JOY50_RS05860 | | sigma-70 family RNA polymerase sigma factor | no data | 33 | 88 |
| | Sphingobium sp. HT1-2 | GFF2317 | | RNA polymerase ECF-type sigma factor | cofit | 30 | 90 |
| | Azospirillum sp. SherDot2 | MPMX19_00764 | | ECF RNA polymerase sigma factor EcfG | insig. | 33 | 72 |
| o | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_3977 | | RNA polymerase sigma-54 factor RpoN | insig. | 32 | 96 |
| | Ralstonia solanacearum GMI1000 | RS_RS25030 | | RNA polymerase sigma factor | insig. | 33 | 85 |
| | Variovorax sp. SCN45 | GFF5806 | | RNA polymerase ECF-type sigma factor | insig. | 31 | 82 |
| o | Caulobacter crescentus NA1000 | CCNA_02977 | | RNA polymerase ECF-type sigma factor sigU | strong | 31 | 87 |
| o | Caulobacter crescentus NA1000 Δfur | CCNA_02977 | | RNA polymerase ECF-type sigma factor sigU | cofit | 31 | 87 |
| | Rahnella sp. WP5 | EX31_RS05375 | | sigma-70 family RNA polymerase sigma factor | insig. | 31 | 79 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS02840 | | RNA polymerase sigma factor | sig. | 34 | 73 |
| | Variovorax sp. SCN45 | GFF215 | | RNA polymerase sigma-54 factor RpoN | insig. | 33 | 76 |
| o | Pseudomonas fluorescens GW456-L13 | PfGW456L13_2582 | | RNA polymerase sigma-54 factor RpoN | insig. | 32 | 88 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT2569 | | RNA polymerase ECF-type sigma factor (NCBI ptt file) | insig. | 34 | 73 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT3457 | | RNA polymerase ECF-type sigma factor (NCBI ptt file) | strong | 34 | 73 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c27070 | | RNA polymerase sigma factor 70 (ECF15 subgroup, ECF26 subgroup) | insig. | 31 | 76 |
| | Caulobacter crescentus NA1000 | CCNA_03589 | | RNA polymerase EcfG family sigma factor sigT | strong | 30 | 93 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_03589 | | RNA polymerase EcfG family sigma factor sigT | cofit | 30 | 93 |
| | Azospirillum brasilense Sp245 | AZOBR_RS06360 | | RNA polymerase subunit sigma-24 | no data | 35 | 73 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS32410 | | RNA polymerase subunit sigma-24 | no data | 34 | 74 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS22515 | | RNA polymerase sigma factor | insig. | 29 | 91 |
| | Sinorhizobium meliloti 1021 | SMc01506 | | RNA polymerase sigma factor | strong | 33 | 74 |
| | Bifidobacterium breve UCC2003 | BBR_RS16820 | | RNA polymerase sigma factor RpoE | strong | 29 | 79 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3853 | | RNA polymerase sigma factor, sigma-70 family | insig. | 35 | 75 |
| | Sinorhizobium meliloti 1021 | SMa0143 | | RNA polymerase ECF sigma factor | insig. | 32 | 82 |
| | Pseudomonas stutzeri RCH2 | Psest_3456 | | RNA polymerase sigma factor, sigma-70 family | insig. | 34 | 80 |
| | Variovorax sp. OAS795 | ABID97_RS16445 | | sigma-70 family RNA polymerase sigma factor | no data | 34 | 76 |
| | Rhodopseudomonas palustris CGA009 | TX73_021900 | | sigma-70 family RNA polymerase sigma factor | strong | 31 | 77 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS16520 | | RNA polymerase sigma factor | insig. | 29 | 84 |
| | Pseudomonas sp. DMC3 | GFF1465 | | ECF RNA polymerase sigma factor EcfG | insig. | 32 | 78 |
| | Bosea sp. OAE506 | ABIE41_RS04095 | | sigma-70 family RNA polymerase sigma factor | strong | 30 | 75 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS17450 | | RNA polymerase sigma factor | strong | 34 | 73 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS03770 | | RNA polymerase sigma factor | strong | 34 | 73 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT1572 | | RNA polymerase ECF-type sigma factor (NCBI ptt file) | insig. | 33 | 77 |
| | Cellulophaga baltica 18 | M666_RS08305 | | RNA polymerase sigma factor | insig. | 31 | 70 |
| | Sphingobium sp. HT1-2 | GFF4551 | | hypothetical protein | cofit | 31 | 74 |
| | Azospirillum sp. SherDot2 | MPMX19_01371 | | hypothetical protein | insig. | 34 | 75 |
| | Pseudomonas orientalis W4I3 | QF045_RS18740 | | sigma-70 family RNA polymerase sigma factor | insig. | 33 | 78 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS16950 | | RNA polymerase sigma factor | strong | 33 | 76 |
| | Pectobacterium carotovorum WPP14 | HER17_RS09715 | | sigma-70 family RNA polymerase sigma factor | cofit | 32 | 75 |
| | Agrobacterium fabrum C58 | Atu5490 | | ECF family RNA polymerase sigma factor | insig. | 31 | 77 |
| | Rhodopseudomonas palustris CGA009 | TX73_009355 | | sigma-70 family RNA polymerase sigma factor | insig. | 27 | 78 |
| | Paraburkholderia graminis OAS925 | ABIE53_005146 | | RNA polymerase sigma factor (sigma-70 family) | sig. | 30 | 80 |
| | Dechlorosoma suillum PS | Dsui_1302 | | RNA polymerase sigma factor, sigma-70 family | cofit | 30 | 79 |
| | Rhodopseudomonas palustris CGA009 | TX73_024905 | | sigma-70 family RNA polymerase sigma factor | insig. | 30 | 74 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_02205 | | Sigma-70 region 2 | sig. | 34 | 73 |
| | Ralstonia solanacearum GMI1000 | RS_RS14950 | | RNA polymerase sigma factor | no data | 31 | 76 |
| | Synechococcus elongatus PCC 7942 | Synpcc7942_1923 | sigG | RNA polymerase sigma factor RpoE | strong | 30 | 81 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_01538 | | RNA polymerase sigma-70 factor, ECF subfamily | insig. | 30 | 80 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_19605 | | RNA polymerase | insig. | 30 | 78 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS14775 | | sigma-70 family RNA polymerase sigma factor | strong | 33 | 88 |
| | Dickeya dadantii 3937 | DDA3937_RS11055 | | sigma-70 family RNA polymerase sigma factor | insig. | 32 | 76 |
| | Dickeya dianthicola 67-19 | HGI48_RS11075 | | sigma-70 family RNA polymerase sigma factor | insig. | 32 | 76 |
| | Sinorhizobium meliloti 1021 | SM_b21484 | | RNA polymerase sigma-E factor (sigma-24) protein | insig. | 31 | 79 |
| | Azospirillum sp. SherDot2 | MPMX19_00923 | | hypothetical protein | insig. | 31 | 76 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_20305 | | RNA polymerase subunit sigma-24 | no data | 32 | 78 |
| o | Pseudomonas sp. RS175 | PFR28_01251 | | ECF RNA polymerase sigma factor EcfG | insig. | 31 | 88 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_03722 | | ECF RNA polymerase sigma factor EcfG | no data | 33 | 78 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS23395 | | RNA polymerase sigma factor | insig. | 33 | 82 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_2200 | | RNA polymerase sigma-54 factor RpoN | sig. | 33 | 78 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_03979 | | Sigma-70 region 2 | strong | 32 | 73 |
| | Bosea sp. OAE506 | ABIE41_RS07610 | | sigma-70 family RNA polymerase sigma factor | insig. | 30 | 76 |
| | Rhizobium sp. OAE497 | ABIE40_RS21790 | | sigma-70 family RNA polymerase sigma factor | cofit | 35 | 69 |
| | Pseudomonas simiae WCS417 | PS417_17070 | | RNA polymerase subunit sigma-24 | insig. | 34 | 78 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_04312 | | Sigma-70 region 2 | insig. | 32 | 77 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS23005 | | sigma-70 family RNA polymerase sigma factor | insig. | 32 | 82 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_0726 | | RNA polymerase sigma factor, sigma-70 family | insig. | 26 | 81 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT2383 | | RNA polymerase ECF-type sigma factor (NCBI ptt file) | insig. | 34 | 73 |
| | Sinorhizobium meliloti 1021 | SMc04051 | | RNA polymerase sigma-E factor (sigma-24) protein | insig. | 33 | 74 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_01625 | | RNA polymerase subunit sigma-24 | insig. | 32 | 78 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS10230 | | RNA polymerase sigma factor | no data | 30 | 76 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS02545 | | sigma-70 family RNA polymerase sigma factor | insig. | 31 | 77 |
| | Shewanella amazonensis SB2B | Sama_2611 | | ECF subfamily RNA polymerase sigma-24 factor (RefSeq) | insig. | 28 | 80 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS07750 | | RNA polymerase sigma factor | insig. | 34 | 73 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS23205 | | hypothetical protein | insig. | 29 | 89 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS23375 | | RNA polymerase sigma factor | insig. | 32 | 79 |