| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Variovorax sp. SCN45 | GFF320 | | RNA polymerase ECF-type sigma factor | insig. | 100 | 100 |
| o | Variovorax sp. OAS795 | ABID97_RS16825 | | sigma-70 family RNA polymerase sigma factor | insig. | 90 | 97 |
| o | Burkholderia phytofirmans PsJN | BPHYT_RS25560 | | RNA polymerase sigma factor | insig. | 64 | 96 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_1827 | | RNA polymerase sigma-70 factor, ECF subfamily | insig. | 64 | 96 |
| o | Paraburkholderia sabiae LMG 24235 | QEN71_RS20845 | | sigma-70 family RNA polymerase sigma factor | insig. | 64 | 88 |
| o | Herbaspirillum seropedicae SmR1 | HSERO_RS16195 | | RNA polymerase sigma factor | insig. | 66 | 89 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS25505 | | RNA polymerase sigma factor | insig. | 63 | 88 |
| o | Pseudomonas putida KT2440 | PP_0994 | | putative RNA polymerase sigma factor | insig. | 63 | 87 |
| o | Dechlorosoma suillum PS | Dsui_0155 | | RNA polymerase sigma factor, sigma-70 family | strong | 61 | 88 |
| o | Pseudomonas stutzeri RCH2 | Psest_0114 | | RNA polymerase sigma factor, sigma-70 family | insig. | 59 | 88 |
| o | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_01786 | | RNA polymerase sigma-70 factor, ECF subfamily | insig. | 54 | 94 |
| o | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS01090 | | sigma-70 family RNA polymerase sigma factor | insig. | 51 | 90 |
| o | Caulobacter crescentus NA1000 | CCNA_03362 | | ECF-family RNA polymerase sigma factor | strong | 49 | 89 |
| o | Caulobacter crescentus NA1000 Δfur | CCNA_03362 | | ECF-family RNA polymerase sigma factor | cofit | 49 | 89 |
| o | Bosea sp. OAE506 | ABIE41_RS02435 | | sigma-70 family RNA polymerase sigma factor | insig. | 47 | 91 |
| o | Xanthobacter sp. DMC5 | GFF1206 | | ECF RNA polymerase sigma factor SigF | insig. | 48 | 87 |
| o | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3636 | | RNA polymerase sigma factor, sigma-70 family | insig. | 47 | 90 |
| o | Agrobacterium fabrum C58 | Atu2268 | | ECF family sigma factor | insig. | 49 | 85 |
| o | Sphingobium sp. HT1-2 | GFF5259 | | hypothetical protein | insig. | 49 | 71 |
| o | Sinorhizobium meliloti 1021 | SM_b20531 | | RNA polymerase sigma factor | insig. | 39 | 88 |
| o | Azospirillum sp. SherDot2 | MPMX19_04570 | | ECF RNA polymerase sigma factor SigF | insig. | 40 | 84 |
| o | Rhizobium sp. OAE497 | ABIE40_RS01010 | | sigma-70 family RNA polymerase sigma factor | insig. | 41 | 83 |
| | Xanthobacter sp. DMC5 | GFF2972 | | ECF RNA polymerase sigma factor SigF | no data | 39 | 89 |
| o | Erwinia amylovora T8 | OLJFJH_08545 | | RNA polymerase subunit sigma-70 | insig. | 37 | 84 |
| o | Rhodopseudomonas palustris CGA009 | TX73_009325 | | sigma-70 family RNA polymerase sigma factor | insig. | 39 | 82 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_03490 | | hypothetical protein | insig. | 38 | 82 |
| o | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS13745 | | sigma-70 family RNA polymerase sigma factor | insig. | 36 | 82 |
| o | Pantoea sp. MT58 | IAI47_20240 | | sigma-70 family RNA polymerase sigma factor | insig. | 40 | 84 |
| o | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS13930 | | RNA polymerase sigma factor | insig. | 38 | 82 |
| | Rhizobium sp. OAE497 | ABIE40_RS19610 | | sigma-70 family RNA polymerase sigma factor | insig. | 36 | 81 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS09080 | | sigma-70 family RNA polymerase sigma factor | cofit | 39 | 82 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS14380 | | sigma-70 family RNA polymerase sigma factor | insig. | 35 | 82 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS14665 | | sigma-70 family RNA polymerase sigma factor | insig. | 35 | 82 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_2952 | | RNA polymerase sigma factor, sigma-70 family | strong | 32 | 85 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3853 | | RNA polymerase sigma factor, sigma-70 family | insig. | 33 | 81 |
| | Sphingobium sp. HT1-2 | GFF2317 | | RNA polymerase ECF-type sigma factor | cofit | 32 | 76 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS14775 | | sigma-70 family RNA polymerase sigma factor | strong | 31 | 80 |
| o | Bacteroides thetaiotaomicron VPI-5482 | BT3269 | | RNA polymerase ECF-type sigma factor (NCBI ptt file) | sig. | 28 | 82 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS10060 | | sigma-70 family RNA polymerase sigma factor | insig. | 35 | 61 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3492 | | RNA polymerase sigma factor, sigma-70 family | strong | 33 | 76 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_0443 | | RNA polymerase sigma factor, sigma-70 family | insig. | 31 | 79 |
| | Shewanella sp. ANA-3 | Shewana3_0763 | | ECF subfamily RNA polymerase sigma-24 factor (RefSeq) | insig. | 25 | 80 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_05041 | | RNA polymerase sigma-70 factor, ECF subfamily | insig. | 31 | 79 |
| | Rhodopseudomonas palustris CGA009 | TX73_003315 | | RNA polymerase sigma factor | insig. | 28 | 90 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS09165 | | RNA polymerase sigma factor | insig. | 33 | 61 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS09505 | | RNA polymerase sigma factor | insig. | 33 | 61 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_07625 | | RNA polymerase subunit sigma-70 | insig. | 31 | 89 |
| | Agrobacterium fabrum C58 | Atu3084 | | RNA polymerase sigma factor | insig. | 31 | 80 |
| | Alteromonas macleodii MIT1002 | MIT1002_03202 | | Sigma-K factor | insig. | 28 | 85 |
| | Sphingobium sp. HT1-2 | GFF4975 | | RNA polymerase ECF-type sigma factor | cofit | 32 | 76 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_14520 | rpoE | RNA polymerase sigma factor | insig. | 33 | 61 |
| | Paraburkholderia graminis OAS925 | ABIE53_003943 | | RNA polymerase sigma-70 factor (ECF subfamily) | sig. | 30 | 77 |
| | Marinobacter adhaerens HP15 | HP15_3899 | | RNA polymerase, sigma-24 subunit, ECF subfamily | insig. | 30 | 83 |
| | Paraburkholderia graminis OAS925 | ABIE53_003919 | | RNA polymerase sigma-70 factor (ECF subfamily) | insig. | 26 | 71 |
| | Shewanella oneidensis MR-1 | SO3840 | | RNA polymerase sigma-70 factor, ECF subfamily (NCBI ptt file) | insig. | 24 | 80 |
| | Azospirillum brasilense Sp245 | AZOBR_RS10625 | | RNA polymerase sigma-70 factor | insig. | 31 | 63 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS01700 | | RNA polymerase sigma factor | insig. | 26 | 80 |
| o | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_0726 | | RNA polymerase sigma factor, sigma-70 family | insig. | 28 | 80 |
| | Pseudomonas sp. SVBP6 | COO64_RS11395 | | RNA polymerase sigma factor | insig. | 32 | 82 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS03560 | | RNA polymerase sigma factor | insig. | 26 | 79 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS15190 | | RNA polymerase sigma factor | insig. | 25 | 80 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_00883 | | RNA polymerase sigma-70 factor | insig. | 25 | 82 |
| | Mycobacterium tuberculosis H37Rv | Rv1221 | | Alternative RNA polymerase sigma factor SigE | insig. | 32 | 69 |
| | Xanthobacter sp. DMC5 | GFF1406 | | RNA polymerase sigma-H factor | insig. | 31 | 82 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT4571 | | RNA polymerase ECF-type sigma factor (NCBI ptt file) | strong | 26 | 89 |
| | Cellulophaga baltica 18 | M666_RS10480 | | RNA polymerase sigma factor | sig. | 25 | 69 |
| | Sphingobium sp. HT1-2 | GFF5151 | | RNA polymerase ECF-type sigma factor | cofit | 29 | 78 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS20645 | | RNA polymerase subunit sigma-70 | insig. | 24 | 82 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_1573 | | RNA polymerase sigma factor RpoE | no data | 23 | 96 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_0766 | | RNA polymerase sigma factor, sigma-70 family | insig. | 33 | 66 |
| | Caulobacter crescentus NA1000 | CCNA_03589 | | RNA polymerase EcfG family sigma factor sigT | strong | 29 | 79 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_03589 | | RNA polymerase EcfG family sigma factor sigT | cofit | 29 | 79 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_1599 | | RNA polymerase sigma factor | insig. | 26 | 89 |
| | Variovorax sp. OAS795 | ABID97_RS08330 | | RNA polymerase sigma factor RpoE | strong | 24 | 87 |
| | Azospirillum sp. SherDot2 | MPMX19_01371 | | hypothetical protein | insig. | 32 | 63 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT2184 | | RNA polymerase ECF-type sigma factor (NCBI ptt file) | strong | 27 | 66 |
| | Azospirillum sp. SherDot2 | MPMX19_00764 | | ECF RNA polymerase sigma factor EcfG | insig. | 28 | 68 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS02545 | | sigma-70 family RNA polymerase sigma factor | insig. | 30 | 66 |
| | Bifidobacterium breve UCC2003 | BBR_RS15930 | | RNA polymerase sigma factor | insig. | 27 | 91 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT1817 | | RNA polymerase ECF-type sigma factor (NCBI ptt file) | sig. | 24 | 85 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS16335 | | sigma-70 family RNA polymerase sigma factor | insig. | 31 | 85 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS16335 | | sigma-70 family RNA polymerase sigma factor | insig. | 31 | 85 |
| | Azospirillum brasilense Sp245 | AZOBR_RS06360 | | RNA polymerase subunit sigma-24 | no data | 27 | 78 |
| | Shewanella amazonensis SB2B | Sama_2036 | | ECF subfamily RNA polymerase sigma-24 factor (RefSeq) | insig. | 27 | 90 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_12575 | rpoE | RNA polymerase subunit sigma-24 | insig. | 25 | 74 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS04900 | | RNA polymerase sigma-70 factor | insig. | 25 | 89 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_11965 | | RNA polymerase subunit sigma | insig. | 25 | 77 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_04915 | | RNA polymerase subunit sigma-24 | insig. | 32 | 80 |
| | Azospirillum brasilense Sp245 | AZOBR_RS28490 | | hypothetical protein | sig. | 30 | 83 |
| | Caulobacter crescentus NA1000 | CCNA_02837 | | RNA polymerase ECF-type sigma factor | insig. | 30 | 83 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_02837 | | RNA polymerase ECF-type sigma factor | cofit | 30 | 83 |
| | Kangiella aquimarina DSM 16071 | B158DRAFT_1843 | | RNA polymerase sigma factor, sigma-70 family | insig. | 28 | 89 |
| | Pseudomonas stutzeri RCH2 | Psest_3456 | | RNA polymerase sigma factor, sigma-70 family | insig. | 27 | 89 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS13315 | | hypothetical protein | insig. | 33 | 65 |
| | Sphingobium sp. HT1-2 | GFF2028 | | hypothetical protein | cofit | 29 | 61 |
| | Lysobacter sp. OAE881 | ABIE51_RS16295 | | sigma-70 family RNA polymerase sigma factor | insig. | 25 | 86 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT2044 | | RNA polymerase ECF-type sigma factor (NCBI ptt file) | insig. | 24 | 80 |
| | Fusobacterium nucleatum SB010 | HUW76_07635 | | RNA polymerase sigma factor | no data | 21 | 65 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS09285 | | RNA polymerase sigma factor | no data | 34 | 66 |
| | Bosea sp. OAE506 | ABIE41_RS04095 | | sigma-70 family RNA polymerase sigma factor | strong | 29 | 78 |