| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_11715 | | RNA polymerase subunit sigma | insig. | 100 | 100 |
| | Shewanella loihica PV-4 | Shew_1476 | | RNA polymerase sigma factor (RefSeq) | insig. | 45 | 86 |
| o | Alteromonas macleodii MIT1002 | MIT1002_02682 | | Sigma-W factor | strong | 44 | 87 |
| | Shewanella oneidensis MR-1 | SO1986 | | RNA polymerase sigma-70 factor, ECF subfamily (NCBI ptt file) | insig. | 41 | 86 |
| | Shewanella amazonensis SB2B | Sama_2036 | | ECF subfamily RNA polymerase sigma-24 factor (RefSeq) | insig. | 40 | 90 |
| | Shewanella sp. ANA-3 | Shewana3_2465 | | ECF subfamily RNA polymerase sigma-24 factor (RefSeq) | insig. | 42 | 84 |
| o | Variovorax sp. OAS795 | ABID97_RS21865 | | sigma-70 family RNA polymerase sigma factor | insig. | 41 | 88 |
| o | Dinoroseobacter shibae DFL-12 | Dshi_0366 | | RNA polymerase, sigma-24 subunit, ECF subfamily (RefSeq) | insig. | 39 | 90 |
| o | Rhodospirillum rubrum S1H | Rru_A0722 | | Sigma-24 (FecI) (NCBI) | insig. | 40 | 89 |
| | Bosea sp. OAE506 | ABIE41_RS10280 | | sigma-70 family RNA polymerase sigma factor | insig. | 44 | 87 |
| o | Rhodanobacter sp. FW510-T8 | OKGIIK_13920 | | RNA polymerase subunit sigma | insig. | 39 | 92 |
| o | Marinobacter adhaerens HP15 | HP15_270 | | RNA polymerase, sigma-24 subunit, ECF subfamily | cofit | 39 | 86 |
| o | Rhizobium sp. OAE497 | ABIE40_RS18210 | | sigma-70 family RNA polymerase sigma factor | insig. | 38 | 88 |
| o | Rhodopseudomonas palustris CGA009 | TX73_002850 | | sigma-70 family RNA polymerase sigma factor | insig. | 35 | 92 |
| | Azospirillum sp. SherDot2 | MPMX19_05742 | | hypothetical protein | insig. | 37 | 87 |
| o | Xanthobacter sp. DMC5 | GFF3078 | | ECF RNA polymerase sigma factor RpoE | insig. | 37 | 79 |
| | Azospirillum sp. SherDot2 | MPMX19_02022 | | ECF RNA polymerase sigma factor RpoE | insig. | 38 | 87 |
| o | Rhodanobacter denitrificans MT42 | LRK55_RS07240 | | sigma-70 family RNA polymerase sigma factor | insig. | 35 | 93 |
| o | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS07500 | | sigma-70 family RNA polymerase sigma factor | insig. | 35 | 93 |
| o | Caulobacter crescentus NA1000 | CCNA_00685 | | RNA polymerase sigma factor | sig. | 35 | 89 |
| o | Caulobacter crescentus NA1000 Δfur | CCNA_00685 | | RNA polymerase sigma factor | cofit | 35 | 89 |
| o | Azospirillum brasilense Sp245 | AZOBR_RS00810 | | RNA polymerase sigma factor RpoE | insig. | 35 | 95 |
| | Phaeobacter inhibens DSM 17395 | PGA1_c27510 | | 'RNA polymerase sigma factor (sigma-70 family; ECF11 subgroup)' | insig. | 33 | 89 |
| | Azospirillum sp. SherDot2 | MPMX19_05229 | | ECF RNA polymerase sigma factor RpoE | insig. | 35 | 87 |
| o | Pseudomonas syringae pv. syringae B728a | Psyr_0892 | | Sigma-70 region 2:Sigma-70 region 4 | insig. | 33 | 89 |
| o | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_0892 | | Sigma-70 region 2:Sigma-70 region 4 | insig. | 33 | 89 |
| | Rhizobium sp. OAE497 | ABIE40_RS26955 | | sigma-70 family RNA polymerase sigma factor | insig. | 34 | 87 |
| o | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS05845 | | sigma-70 family RNA polymerase sigma factor | insig. | 38 | 85 |
| o | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_02680 | | RNA polymerase subunit sigma-70 | insig. | 31 | 95 |
| | Azospirillum brasilense Sp245 | AZOBR_RS21190 | | RNA polymerase sigma factor RpoE | insig. | 31 | 80 |
| o | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS24900 | | RNA polymerase subunit sigma-70 | insig. | 31 | 90 |
| o | Variovorax sp. SCN45 | GFF3817 | | RNA polymerase sigma factor | insig. | 32 | 97 |
| o | Pseudomonas sp. S08-1 | OH686_11525 | | hypothetical protein | cofit | 32 | 85 |
| o | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS18855 | | RNA polymerase sigma factor | insig. | 32 | 88 |
| o | Cellulophaga baltica 18 | M666_RS08870 | | RNA polymerase sigma factor | insig. | 30 | 88 |
| | Variovorax sp. OAS795 | ABID97_RS08165 | | sigma-70 family RNA polymerase sigma factor | insig. | 31 | 97 |
| o | Burkholderia phytofirmans PsJN | BPHYT_RS21845 | | hypothetical protein | insig. | 31 | 87 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_07625 | | RNA polymerase subunit sigma-70 | insig. | 28 | 86 |
| | Pseudomonas orientalis W4I3 | QF045_RS00535 | | sigma-70 family RNA polymerase sigma factor | cofit | 29 | 86 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS16335 | | sigma-70 family RNA polymerase sigma factor | insig. | 28 | 86 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS16335 | | sigma-70 family RNA polymerase sigma factor | insig. | 28 | 86 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS12085 | | RNA polymerase sigma-E factor protein | insig. | 29 | 98 |
| o | Enterobacter asburiae PDN3 | EX28DRAFT_2390 | | RNA polymerase sigma factor, sigma-70 family | cofit | 29 | 90 |
| o | Ralstonia solanacearum PSI07 | RPSI07_RS13090 | | DNA-directed RNA polymerase sigma-70 factor | insig. | 28 | 87 |
| | Cellulophaga baltica 18 | M666_RS18525 | | RNA polymerase sigma factor | insig. | 26 | 88 |
| o | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS04270 | | DNA-directed RNA polymerase sigma-70 factor | insig. | 27 | 89 |
| o | Ralstonia solanacearum UW163 | UW163_RS09400 | | DNA-directed RNA polymerase sigma-70 factor | insig. | 27 | 89 |
| | Marinobacter adhaerens HP15 | HP15_950 | | RNA polymerase, sigma-24 subunit, ECF subfamily | insig. | 30 | 91 |
| o | Ralstonia sp. UNC404CL21Col | ABZR87_RS16160 | | sigma-70 family RNA polymerase sigma factor | insig. | 26 | 96 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_05040 | | RNA polymerase subunit sigma | insig. | 29 | 93 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS00160 | | hypothetical protein | insig. | 31 | 92 |
| | Azospirillum sp. SherDot2 | MPMX19_00764 | | ECF RNA polymerase sigma factor EcfG | insig. | 29 | 85 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS01495 | | sigma-70 family RNA polymerase sigma factor | insig. | 28 | 93 |
| o | Pseudomonas segetis P6 | ACVTMO_RS06730 | | sigma-70 family RNA polymerase sigma factor | insig. | 25 | 96 |
| o | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS08045 | | sigma-70 family RNA polymerase sigma factor | cofit | 29 | 87 |
| | Mucilaginibacter yixingensis YX-36 DSM 26809 | ABZR88_RS12920 | | RNA polymerase sigma-70 factor | cofit | 29 | 84 |
| o | Agrobacterium fabrum C58 | Atu1982 | | sigma factor | insig. | 32 | 89 |
| | Marinobacter adhaerens HP15 | HP15_775 | | RNA polymerase sigma-70 RpoE type | insig. | 30 | 86 |
| o | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.3601.1 | | RNA polymerase sigma-70 factor | insig. | 27 | 86 |
| | Paraburkholderia graminis OAS925 | ABIE53_006215 | | RNA polymerase sigma-70 factor (ECF subfamily) | insig. | 30 | 79 |
| | Dinoroseobacter shibae DFL-12 | Dshi_2428 | | RNA polymerase, sigma-24 subunit, ECF subfamily (RefSeq) | insig. | 27 | 88 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS00095 | | RNA polymerase sigma factor | insig. | 31 | 79 |
| o | Synechococcus elongatus PCC 7942 | Synpcc7942_2004 | sigI | RNA polymerase sigma factor | insig. | 30 | 82 |
| | Alteromonas macleodii MIT1002 | MIT1002_03202 | | Sigma-K factor | insig. | 27 | 86 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS10230 | | RNA polymerase sigma factor | no data | 30 | 80 |
| | Bosea sp. OAE506 | ABIE41_RS07610 | | sigma-70 family RNA polymerase sigma factor | insig. | 29 | 88 |
| | Ralstonia solanacearum GMI1000 | RS_RS14950 | | RNA polymerase sigma factor | no data | 31 | 80 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS04785 | | sigma-70 family RNA polymerase sigma factor | insig. | 31 | 87 |
| o | Pseudomonas aeruginosa MRSN321 | DY961_RS02510 | sbrI;inference=COORDINATES | ECF family RNA polymerase sigma factor SbrI | insig. | 31 | 87 |
| o | Pseudomonas aeruginosa PUPa3 | DQ20_RS33080 | sbrI;inference=COORDINATES | ECF family RNA polymerase sigma factor SbrI | insig. | 31 | 87 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS24740 | | RNA polymerase subunit sigma-24 | sig. | 31 | 79 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS22710 | | XRE family transcriptional regulator | sig. | 24 | 98 |
| | Sinorhizobium meliloti 1021 | SMa0143 | | RNA polymerase ECF sigma factor | insig. | 33 | 74 |
| | Pseudomonas orientalis W4I3 | QF045_RS06435 | | RNA polymerase sigma factor | insig. | 32 | 76 |
| o | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF329 | | RNA polymerase sigma-54 factor RpoN | insig. | 32 | 81 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_14715 | | ECF family RNA polymerase sigma factor SbrI | insig. | 31 | 87 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_06547 | | RNA polymerase sigma-70 factor, ECF subfamily | insig. | 29 | 79 |
| o | Cupriavidus basilensis FW507-4G11 | RR42_RS15915 | | RNA polymerase subunit sigma-24 | insig. | 28 | 87 |
| | Shewanella oneidensis MR-1 | SO1342 | rpoE | RNA polymerase sigma-24 factor (NCBI ptt file) | no data | 30 | 88 |
| o | Phocaeicola dorei CL03T12C01 | ABI39_RS09920 | | sigma-70 family RNA polymerase sigma factor | insig. | 30 | 84 |
| | Shewanella sp. ANA-3 | Shewana3_3032 | | RNA polymerase sigma factor RpoE (RefSeq) | no data | 30 | 88 |
| | Marinobacter adhaerens HP15 | HP15_p187g100 | | RNA polymerase sigma factor | insig. | 27 | 88 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_00902 | | ECF RNA polymerase sigma factor SigC | insig. | 32 | 76 |
| | Bosea sp. OAE506 | ABIE41_RS04095 | | sigma-70 family RNA polymerase sigma factor | strong | 31 | 76 |
| | Bifidobacterium breve UCC2003 | BBR_RS15930 | | RNA polymerase sigma factor | insig. | 30 | 90 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS10790 | | RNA polymerase sigma factor | insig. | 28 | 90 |
| | Kangiella aquimarina DSM 16071 | B158DRAFT_2180 | | RNA polymerase, sigma-24 subunit, RpoE | strong | 26 | 84 |
| | Pseudomonas simiae WCS417 | PS417_03450 | | RNA polymerase sigma factor | insig. | 32 | 76 |
| | Shewanella loihica PV-4 | Shew_1048 | | RNA polymerase sigma factor RpoE (RefSeq) | cofit | 29 | 88 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT3190 | | putative RNA polymerase ECF-type sigma factor (NCBI ptt file) | sig. | 28 | 89 |
| | Rhodopseudomonas palustris CGA009 | TX73_009355 | | sigma-70 family RNA polymerase sigma factor | insig. | 28 | 87 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_14780 | | RNA polymerase subunit sigma-70 | insig. | 31 | 87 |
| o | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS14290 | | sigma-70 family RNA polymerase sigma factor | insig. | 29 | 84 |
| | Pseudomonas stutzeri RCH2 | Psest_3456 | | RNA polymerase sigma factor, sigma-70 family | insig. | 32 | 88 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS03525 | | RNA polymerase sigma factor | insig. | 32 | 76 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS03525 | | RNA polymerase sigma factor | insig. | 32 | 76 |
| o | Pantoea sp. MT58 | IAI47_19735 | | sigma-70 family RNA polymerase sigma factor | insig. | 25 | 87 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS08110 | | sigma-70 family RNA polymerase sigma factor | insig. | 29 | 84 |
| | Castellaniella sp019104865 MT123 | ABCV34_RS11175 | | sigma-70 family RNA polymerase sigma factor | insig. | 28 | 82 |
| | Azospirillum brasilense Sp245 | AZOBR_RS06360 | | RNA polymerase subunit sigma-24 | no data | 27 | 85 |