| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Pseudomonas syringae pv. syringae B728a | Psyr_2272 | | Helix-turn-helix motif protein | insig. | 100 | 100 |
| o | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_2272 | | Helix-turn-helix motif protein | insig. | 100 | 100 |
| o | Pseudomonas fluorescens FW300-N2C3 | AO356_30090 | | XRE family transcriptional regulator | strong | 88 | 97 |
| o | Pseudomonas lactucae CFBP13502 | GEMAOFIL_02470 | | HTH-type transcriptional regulator PuuR | cofit | 87 | 98 |
| o | Pseudomonas fluorescens SBW25 | PFLU_RS11400 | | helix-turn-helix domain-containing protein | cofit | 87 | 97 |
| o | Pseudomonas fluorescens SBW25-INTG | PFLU_RS11400 | | helix-turn-helix domain-containing protein | strong | 87 | 97 |
| o | Pseudomonas sp. BP01 | JOY50_RS07765 | | cupin domain-containing protein | insig. | 87 | 97 |
| o | Paraburkholderia sabiae LMG 24235 | QEN71_RS33920 | | XRE family transcriptional regulator | strong | 51 | 92 |
| o | Methylophilus sp. DMC18 | GFF507 | | hypothetical protein | cofit | 50 | 92 |
| | Synechococcus elongatus PCC 7942 | Synpcc7942_2038 | | transcriptional regulator, XRE family with cupin sensor domain | strong | 49 | 91 |
| | Sinorhizobium meliloti 1021 | SMc02620 | | hypothetical protein | sig. | 49 | 92 |
| o | Agrobacterium fabrum C58 | Atu4226 | | transcriptional regulator | sig. | 45 | 97 |
| o | Xanthobacter sp. DMC5 | GFF295 | | hypothetical protein | insig. | 41 | 93 |
| o | Dinoroseobacter shibae DFL-12 | Dshi_1871 | | transcriptional regulator, XRE family (RefSeq) | insig. | 41 | 94 |
| o | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_4557 | | Predicted transcriptional regulators | insig. | 32 | 93 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS01235 | | HTH-type transcriptional regulator PuuR | cofit | 26 | 87 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS13885 | | helix-turn-helix transcriptional regulator | insig. | 26 | 82 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS17685 | | helix-turn-helix transcriptional regulator | insig. | 26 | 82 |
| o | Rhizobium sp. OAE497 | ABIE40_RS01060 | | XRE family transcriptional regulator | insig. | 29 | 84 |
| | Variovorax sp. SCN45 | GFF1021 | | Transcriptional regulator, Xre-family with cupin domain | insig. | 32 | 76 |
| o | Methanococcus maripaludis JJ | MMJJ_RS02070 | | XRE family transcriptional regulator | insig. | 23 | 90 |
| | Pantoea sp. MT58 | IAI47_18980 | | helix-turn-helix domain-containing protein | sig. | 31 | 89 |
| | Rahnella sp. WP5 | EX31_RS21645 | | XRE family transcriptional regulator | insig. | 28 | 92 |
| | Fusobacterium nucleatum SB010 | HUW76_07320 | | helix-turn-helix domain-containing protein | strong | 29 | 85 |
| | Pantoea sp. MT58 | IAI47_07115 | | HTH-type transcriptional regulator PuuR | insig. | 26 | 87 |
| | Bacteroides stercoris CC31F | HMPREF1181_RS01200 | | helix-turn-helix transcriptional regulator | insig. | 24 | 82 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS07555 | | helix-turn-helix domain-containing protein | cofit | 29 | 94 |
| | Serratia liquefaciens MT49 | IAI46_10550 | | HTH-type transcriptional regulator PuuR | insig. | 25 | 80 |
| | Rahnella sp. WP5 | EX31_RS17905 | | HTH-type transcriptional regulator PuuR | insig. | 27 | 83 |
| o | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS10640 | | XRE family transcriptional regulator | cofit | 25 | 85 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS33425 | | transcriptional regulator | insig. | 29 | 81 |
| | Escherichia coli ECRC100 | OKFHMN_02435 | puuR | HTH-type transcriptional regulator PuuR | cofit | 26 | 80 |
| | Escherichia coli ECRC101 | MCAODC_15835 | puuR | HTH-type transcriptional regulator PuuR | insig. | 26 | 80 |
| | Escherichia coli ECRC102 | NIAGMN_26605 | puuR | HTH-type transcriptional regulator PuuR | insig. | 26 | 80 |
| | Escherichia coli ECRC98 | JDDGAC_04980 | puuR | HTH-type transcriptional regulator PuuR | insig. | 26 | 80 |
| | Escherichia coli ECRC99 | KEDOAH_26340 | puuR | HTH-type transcriptional regulator PuuR | no data | 26 | 80 |
| | Escherichia coli BL21 | ECD_01276 | | repressor for the divergent puu operons, putrescine inducible | strong | 25 | 80 |
| | Escherichia coli ECOR27 | NOLOHH_20120 | puuR | HTH-type transcriptional regulator PuuR | insig. | 25 | 80 |
| | Escherichia coli ECOR38 | HEPCGN_25765 | puuR | HTH-type transcriptional regulator PuuR | insig. | 25 | 80 |
| | Escherichia coli ECRC62 | BNILDI_18270 | puuR | HTH-type transcriptional regulator PuuR | insig. | 25 | 80 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_02383 | | HTH-type transcriptional regulator PuuR | insig. | 25 | 80 |
| | Escherichia coli BW25113 | b1299 | puuR | DNA-binding transcriptional repressor (NCBI) | strong | 25 | 80 |
| | Klebsiella michiganensis M5al | BWI76_RS10700 | | XRE family transcriptional regulator | strong | 25 | 80 |
| | Sinorhizobium meliloti 1021 | SMa1076 | | hypothetical protein | insig. | 28 | 83 |
| | Agrobacterium fabrum C58 | Atu0245 | | transcriptional regulator | insig. | 27 | 85 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT2783 | | transcriptional regulator (NCBI ptt file) | sig. | 24 | 82 |
| o | Paraburkholderia graminis OAS925 | ABIE53_004924 | | transcriptional regulator with XRE-family HTH domain | sig. | 29 | 89 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_03868 | | transcriptional regulator, XRE family with cupin sensor | insig. | 29 | 81 |
| | Klebsiella michiganensis M5al | BWI76_RS13955 | | hypothetical protein | insig. | 27 | 83 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_03588 | | transcriptional regulator, XRE family with cupin sensor | sig. | 26 | 90 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS34660 | | DNA-binding protein | sig. | 26 | 94 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_01081 | | hypothetical protein | insig. | 24 | 82 |
| | Serratia liquefaciens MT49 | IAI46_17165 | | HTH-type transcriptional regulator PuuR | insig. | 25 | 72 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_18340 | | HTH-type transcriptional regulator PuuR | insig. | 25 | 80 |
| | Paraburkholderia graminis OAS925 | ABIE53_004670 | | transcriptional regulator with XRE-family HTH domain | sig. | 26 | 90 |
| | Enterobacter asburiae PDN3 | EX28DRAFT_1500 | | Predicted transcriptional regulators | insig. | 24 | 80 |
| | Escherichia coli ECRC100 | OKFHMN_28185 | hipB | transcriptional regulator | no data | 29 | 74 |
| | Escherichia coli ECRC101 | MCAODC_21985 | hipB | transcriptional regulator | insig. | 29 | 74 |
| | Escherichia coli ECRC102 | NIAGMN_28035 | hipB | transcriptional regulator | no data | 29 | 74 |
| | Escherichia coli ECRC98 | JDDGAC_06315 | hipB | transcriptional regulator | sig. | 29 | 74 |
| | Escherichia coli ECRC99 | KEDOAH_25120 | hipB | transcriptional regulator | no data | 29 | 74 |
| | Phaeobacter inhibens DSM 17395 | PGA1_78p00250 | | putative HTH-type transcriptional regulator | insig. | 30 | 81 |
| o | Bosea sp. OAE506 | ABIE41_RS03270 | | XRE family transcriptional regulator | insig. | 30 | 85 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_01585 | | transcriptional regulator PsdR | insig. | 27 | 92 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS14815 | | XRE family transcriptional regulator | insig. | 28 | 82 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_03130 | | transcriptional regulator, XRE family with cupin sensor | insig. | 26 | 81 |
| | Fusobacterium nucleatum SB010 | HUW76_01135 | | cupin domain-containing protein | strong | 25 | 89 |
| | Paraburkholderia graminis OAS925 | ABIE53_004168 | | transcriptional regulator with XRE-family HTH domain | strong | 25 | 85 |
| o | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS24395 | | XRE family transcriptional regulator | strong | 24 | 82 |
| | Azospirillum sp. SherDot2 | MPMX19_05211 | | hypothetical protein | insig. | 30 | 79 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS02215 | | XRE family transcriptional regulator | insig. | 28 | 83 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_23030 | | LacI family transcriptional regulator | insig. | 27 | 79 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS18365 | | cupin domain-containing protein | strong | 25 | 81 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_05560 | | XRE family transcriptional regulator | insig. | 27 | 84 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS22055 | | DNA-binding protein | strong | 27 | 81 |
| | Desulfovibrio vulgaris Hildenborough JW710 | DVU2251 | | DNA-binding protein (TIGR) | sig. | 26 | 77 |
| | Pseudomonas stutzeri RCH2 | Psest_3791 | | Predicted transcriptional regulators | insig. | 25 | 88 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_02314 | | hypothetical protein | cofit | 29 | 79 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS11200 | | XRE family transcriptional regulator | sig. | 25 | 90 |
| | Pseudomonas putida KT2440 | PP_5268 | | DNA-binding transcriptional repressor PuuR-putrescine | strong | 26 | 88 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS16530 | | XRE family transcriptional regulator | insig. | 26 | 90 |
| o | Methanococcus maripaludis S2 | MMP_RS03000 | | cupin domain-containing protein | sig. | 22 | 85 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_1659 | | transcriptional regulator, XRE family with cupin sensor | insig. | 28 | 69 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_0002 | | transcriptional regulator, XRE family (RefSeq) | insig. | 28 | 77 |
| | Rahnella sp. WP5 | EX31_RS03010 | | helix-turn-helix domain-containing protein | sig. | 27 | 78 |
| | Serratia liquefaciens MT49 | IAI46_12755 | | helix-turn-helix transcriptional regulator | no data | 27 | 81 |
| | Serratia liquefaciens MT49 | IAI46_16830 | | helix-turn-helix transcriptional regulator | insig. | 27 | 80 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_26945 | | XRE family transcriptional regulator | insig. | 26 | 88 |
| | Methanococcus maripaludis S2 | MMP_RS01155 | | XRE family transcriptional regulator | strong | 26 | 81 |
| | Pseudomonas segetis P6 | MPMX49_00005 | | HTH-type transcriptional regulator PuuR | strong | 25 | 88 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF2260 | | Transcriptional regulator | insig. | 26 | 78 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_27170 | | XRE family transcriptional regulator | strong | 28 | 79 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS33370 | | XRE family transcriptional regulator | insig. | 27 | 78 |
| | Pseudomonas sp. BP01 | JOY50_RS09135 | | cupin domain-containing protein | insig. | 25 | 88 |
| | Shewanella sp. ANA-3 | Shewana3_3100 | | XRE family transcriptional regulator (RefSeq) | strong | 25 | 88 |
| | Ralstonia solanacearum GMI1000 | RS_RS05775 | | XRE family transcriptional regulator | insig. | 25 | 91 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS17570 | | XRE family transcriptional regulator | insig. | 23 | 90 |
| | Shewanella oneidensis MR-1 | SO1265 | | transcriptional regulator, putative (NCBI ptt file) | strong | 28 | 88 |
| | Phocaeicola vulgatus CL09T03C04 | HMPREF1058_RS08770 | | cupin domain-containing protein | sig. | 27 | 85 |
| | Acinetobacter baumannii LAC-4 | RR41_RS01095 | | XRE family transcriptional regulator | insig. | 26 | 79 |