| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Azospirillum sp. SherDot2 | MPMX19_05229 | | ECF RNA polymerase sigma factor RpoE | insig. | 100 | 100 |
| | Azospirillum brasilense Sp245 | AZOBR_RS00810 | | RNA polymerase sigma factor RpoE | insig. | 50 | 90 |
| | Azospirillum sp. SherDot2 | MPMX19_02022 | | ECF RNA polymerase sigma factor RpoE | insig. | 50 | 83 |
| | Rhodospirillum rubrum S1H | Rru_A0722 | | Sigma-24 (FecI) (NCBI) | insig. | 45 | 87 |
| | Rhodopseudomonas palustris CGA009 | TX73_002850 | | sigma-70 family RNA polymerase sigma factor | insig. | 42 | 91 |
| | Azospirillum brasilense Sp245 | AZOBR_RS21190 | | RNA polymerase sigma factor RpoE | insig. | 52 | 76 |
| | Variovorax sp. OAS795 | ABID97_RS21865 | | sigma-70 family RNA polymerase sigma factor | insig. | 45 | 84 |
| | Dinoroseobacter shibae DFL-12 | Dshi_0366 | | RNA polymerase, sigma-24 subunit, ECF subfamily (RefSeq) | insig. | 46 | 85 |
| | Rhizobium sp. OAE497 | ABIE40_RS18210 | | sigma-70 family RNA polymerase sigma factor | insig. | 42 | 87 |
| | Caulobacter crescentus NA1000 | CCNA_00685 | | RNA polymerase sigma factor | sig. | 41 | 87 |
| | Caulobacter crescentus NA1000 Δfur | CCNA_00685 | | RNA polymerase sigma factor | cofit | 41 | 87 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c27510 | | 'RNA polymerase sigma factor (sigma-70 family; ECF11 subgroup)' | insig. | 42 | 83 |
| | Rhizobium sp. OAE497 | ABIE40_RS26955 | | sigma-70 family RNA polymerase sigma factor | insig. | 41 | 86 |
| | Azospirillum sp. SherDot2 | MPMX19_05742 | | hypothetical protein | insig. | 45 | 91 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_0892 | | Sigma-70 region 2:Sigma-70 region 4 | insig. | 44 | 80 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_0892 | | Sigma-70 region 2:Sigma-70 region 4 | insig. | 44 | 80 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS05845 | | sigma-70 family RNA polymerase sigma factor | insig. | 44 | 81 |
| | Marinobacter adhaerens HP15 | HP15_270 | | RNA polymerase, sigma-24 subunit, ECF subfamily | cofit | 37 | 84 |
| | Bosea sp. OAE506 | ABIE41_RS10280 | | sigma-70 family RNA polymerase sigma factor | insig. | 37 | 95 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS07500 | | sigma-70 family RNA polymerase sigma factor | insig. | 39 | 86 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS07240 | | sigma-70 family RNA polymerase sigma factor | insig. | 39 | 86 |
| | Xanthobacter sp. DMC5 | GFF3078 | | ECF RNA polymerase sigma factor RpoE | insig. | 40 | 81 |
| o | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.3601.1 | | RNA polymerase sigma-70 factor | insig. | 39 | 86 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_13920 | | RNA polymerase subunit sigma | insig. | 36 | 86 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_05040 | | RNA polymerase subunit sigma | insig. | 35 | 78 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS01495 | | sigma-70 family RNA polymerase sigma factor | insig. | 35 | 78 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_01465 | | RNA polymerase sigma-70 factor, ECF subfamily | insig. | 34 | 95 |
| | Shewanella loihica PV-4 | Shew_1476 | | RNA polymerase sigma factor (RefSeq) | insig. | 37 | 82 |
| | Shewanella sp. ANA-3 | Shewana3_2465 | | ECF subfamily RNA polymerase sigma-24 factor (RefSeq) | insig. | 37 | 84 |
| | Alteromonas macleodii MIT1002 | MIT1002_02682 | | Sigma-W factor | strong | 36 | 86 |
| | Rhizobium sp. OAE497 | ABIE40_RS01975 | | sigma-70 family RNA polymerase sigma factor | insig. | 34 | 85 |
| | Agrobacterium fabrum C58 | Atu1982 | | sigma factor | insig. | 35 | 78 |
| | Shewanella oneidensis MR-1 | SO1986 | | RNA polymerase sigma-70 factor, ECF subfamily (NCBI ptt file) | insig. | 34 | 90 |
| | Shewanella amazonensis SB2B | Sama_2036 | | ECF subfamily RNA polymerase sigma-24 factor (RefSeq) | insig. | 38 | 79 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_11715 | | RNA polymerase subunit sigma | insig. | 35 | 80 |
| | Marinobacter adhaerens HP15 | HP15_950 | | RNA polymerase, sigma-24 subunit, ECF subfamily | insig. | 34 | 85 |
| o | Pseudomonas sp. BP01 | JOY50_RS12975 | | sigma-70 family RNA polymerase sigma factor | insig. | 30 | 84 |
| o | Herbaspirillum seropedicae SmR1 | HSERO_RS12085 | | RNA polymerase sigma-E factor protein | insig. | 30 | 89 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_1715 | | RNA polymerase sigma factor, sigma-70 family | insig. | 33 | 86 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS13090 | | DNA-directed RNA polymerase sigma-70 factor | insig. | 30 | 92 |
| o | Enterobacter asburiae PDN3 | EX28DRAFT_2390 | | RNA polymerase sigma factor, sigma-70 family | cofit | 30 | 87 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS16160 | | sigma-70 family RNA polymerase sigma factor | insig. | 30 | 86 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS04270 | | DNA-directed RNA polymerase sigma-70 factor | insig. | 32 | 78 |
| | Ralstonia solanacearum UW163 | UW163_RS09400 | | DNA-directed RNA polymerase sigma-70 factor | insig. | 32 | 78 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS08045 | | sigma-70 family RNA polymerase sigma factor | cofit | 30 | 78 |
| | Ralstonia solanacearum GMI1000 | RS_RS11855 | | DNA-directed RNA polymerase sigma-70 factor | insig. | 30 | 92 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS16335 | | sigma-70 family RNA polymerase sigma factor | insig. | 32 | 86 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS16335 | | sigma-70 family RNA polymerase sigma factor | insig. | 32 | 86 |
| | Rahnella sp. WP5 | EX31_RS18905 | | sigma-70 family RNA polymerase sigma factor | insig. | 31 | 76 |
| | Pseudomonas simiae WCS417 | PS417_12610 | | RNA polymerase sigma factor | sig. | 27 | 78 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS13305 | | sigma-70 family RNA polymerase sigma factor | insig. | 28 | 78 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS13305 | | sigma-70 family RNA polymerase sigma factor | sig. | 28 | 78 |
| | Kangiella aquimarina DSM 16071 | B158DRAFT_0930 | | RNA polymerase sigma factor, sigma-70 family | insig. | 29 | 78 |
| | Marinobacter adhaerens HP15 | HP15_3899 | | RNA polymerase, sigma-24 subunit, ECF subfamily | insig. | 28 | 86 |
| | Bosea sp. OAE506 | ABIE41_RS11620 | | sigma-70 family RNA polymerase sigma factor | insig. | 30 | 78 |
| | Bosea sp. OAE506 | ABIE41_RS07610 | | sigma-70 family RNA polymerase sigma factor | insig. | 32 | 72 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_1622 | | RNA polymerase sigma factor | insig. | 30 | 78 |
| | Dinoroseobacter shibae DFL-12 | Dshi_2428 | | RNA polymerase, sigma-24 subunit, ECF subfamily (RefSeq) | insig. | 34 | 78 |
| | Rhodopseudomonas palustris CGA009 | TX73_024905 | | sigma-70 family RNA polymerase sigma factor | insig. | 31 | 90 |
| | Pseudomonas putida KT2440 | PP_3006 | | RNA polymerase sigma-70 factor, ECF subfamily | insig. | 27 | 84 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS18855 | | RNA polymerase sigma factor | insig. | 26 | 77 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS21845 | | hypothetical protein | insig. | 30 | 77 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_14715 | | ECF family RNA polymerase sigma factor SbrI | insig. | 33 | 77 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_02680 | | RNA polymerase subunit sigma-70 | insig. | 28 | 80 |
| | Pantoea sp. MT58 | IAI47_19735 | | sigma-70 family RNA polymerase sigma factor | insig. | 29 | 78 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS24900 | | RNA polymerase subunit sigma-70 | insig. | 27 | 83 |
| o | Cupriavidus basilensis FW507-4G11 | RR42_RS15915 | | RNA polymerase subunit sigma-24 | insig. | 28 | 78 |
| | Pseudomonas sp. S08-1 | OH686_11525 | | hypothetical protein | cofit | 29 | 77 |
| | Pseudomonas sp. DMC3 | GFF1392 | | ECF RNA polymerase sigma factor SigK | cofit | 28 | 78 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_3924 | | RNA polymerase sigma-70 factor, Bacteroides expansion family 1 | strong | 26 | 79 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS22710 | | XRE family transcriptional regulator | sig. | 29 | 82 |
| | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF365 | | RNA polymerase sigma factor | insig. | 28 | 78 |
| | Pseudomonas segetis P6 | MPMX49_02136 | | ECF RNA polymerase sigma factor SigM | insig. | 32 | 79 |
| | Cellulophaga baltica 18 | M666_RS08870 | | RNA polymerase sigma factor | insig. | 28 | 79 |
| | Dinoroseobacter shibae DFL-12 | Dshi_3423 | | RNA polymerase, sigma-24 subunit, ECF subfamily (RefSeq) | insig. | 32 | 79 |
| | Alteromonas macleodii MIT1002 | MIT1002_03202 | | Sigma-K factor | insig. | 27 | 79 |
| | Marinobacter adhaerens HP15 | HP15_p187g100 | | RNA polymerase sigma factor | insig. | 30 | 78 |
| o | Variovorax sp. SCN45 | GFF3817 | | RNA polymerase sigma factor | insig. | 28 | 90 |
| | Rhodopseudomonas palustris CGA009 | TX73_008400 | | sigma-70 family RNA polymerase sigma factor | insig. | 28 | 84 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_0362 | | Sigma-70 region 2 | insig. | 27 | 78 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_0362 | | Sigma-70 region 2 | insig. | 27 | 78 |
| | Mycobacterium tuberculosis H37Rv | Rv0445c | | Alternative RNA polymerase sigma factor SigK | insig. | 26 | 78 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_07625 | | RNA polymerase subunit sigma-70 | insig. | 28 | 78 |
| | Variovorax sp. OAS795 | ABID97_RS08165 | | sigma-70 family RNA polymerase sigma factor | insig. | 28 | 90 |
| | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_4608 | | RNA polymerase sigma factor, sigma-70 family | insig. | 28 | 78 |
| | Cellulophaga baltica 18 | M666_RS18525 | | RNA polymerase sigma factor | insig. | 24 | 78 |
| | Pseudomonas sp. RS175 | PFR28_04750 | | RNA polymerase sigma-H factor | insig. | 33 | 79 |
| | Rhodopseudomonas palustris CGA009 | TX73_009355 | | sigma-70 family RNA polymerase sigma factor | insig. | 30 | 80 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_14945 | | RNA polymerase subunit sigma-24 | strong | 29 | 78 |
| | Variovorax sp. SCN45 | GFF4544 | | RNA polymerase sigma factor RpoE | insig. | 32 | 72 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c08510 | | RNA polymerase sigma factor (ECF01 subgroup, ECF20 subgroup) | insig. | 29 | 90 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_10740 | | RNA polymerase subunit sigma | insig. | 32 | 78 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS02030 | | RNA polymerase sigma-70 factor | insig. | 30 | 76 |
| | Agrobacterium fabrum C58 | Atu0474 | | putative RNA polymerase sigma-70 factor | insig. | 27 | 78 |
| | Pseudomonas simiae WCS417 | PS417_00810 | | RNA polymerase sigma factor | insig. | 32 | 78 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_4018 | | RNA polymerase sigma-E factor | insig. | 32 | 78 |
| | Alteromonas macleodii MIT1002 | MIT1002_00882 | | Sigma-W factor | insig. | 27 | 76 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS13970 | | RNA polymerase sigma factor | cofit | 28 | 79 |
| | Mycobacterium tuberculosis H37Rv | Rv0735 | | Probable alternative RNA polymerase sigma factor SigL | insig. | 31 | 76 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS00840 | | RNA polymerase sigma factor | insig. | 32 | 78 |