| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Sphingobium sp. HT1-2 | GFF5186 | | Heavy metal resistance transcriptional regulator HmrR | cofit | 100 | 100 |
| o | Rhodospirillum rubrum S1H | Rru_A1026 | | Transcriptional Regulator, MerR family (NCBI) | insig. | 53 | 93 |
| | Dinoroseobacter shibae DFL-12 | Dshi_3623 | | transcriptional regulator, MerR family (RefSeq) | no data | 52 | 94 |
| o | Dinoroseobacter shibae DFL-12 | Dshi_3961 | | transcriptional regulator, MerR family (RefSeq) | no data | 52 | 94 |
| o | Azospirillum sp. SherDot2 | MPMX19_06374 | | HTH-type transcriptional regulator HmrR | insig. | 51 | 93 |
| o | Phaeobacter inhibens DSM 17395 | PGA1_262p00460 | | transcriptional regulator, MerR family | strong | 52 | 94 |
| | Azospirillum sp. SherDot2 | MPMX19_06703 | | HTH-type transcriptional regulator HmrR | insig. | 52 | 93 |
| o | Rhizobium sp. OAE497 | ABIE40_RS15545 | | helix-turn-helix domain-containing protein | insig. | 50 | 93 |
| o | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS11775 | | helix-turn-helix domain-containing protein | cofit | 52 | 93 |
| | Xanthobacter sp. DMC5 | GFF2151 | | hypothetical protein | no data | 47 | 93 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS03105 | | helix-turn-helix domain-containing protein | insig. | 48 | 91 |
| o | Bosea sp. OAE506 | ABIE41_RS05340 | | helix-turn-helix domain-containing protein | insig. | 46 | 99 |
| o | Azospirillum brasilense Sp245 | AZOBR_RS27570 | | MerR family transcriptional regulator | insig. | 46 | 98 |
| o | Pseudomonas segetis P6 | MPMX49_02844 | | Mercuric resistance operon regulatory protein | insig. | 45 | 93 |
| o | Magnetospirillum magneticum AMB-1 | AMB_RS05180 | | MerR family DNA-binding transcriptional regulator | insig. | 47 | 98 |
| | Pseudomonas stutzeri RCH2 | Psest_2758 | | Predicted transcriptional regulators | insig. | 46 | 93 |
| | Rhodopseudomonas palustris CGA009 | TX73_016860 | | helix-turn-helix domain-containing protein | insig. | 44 | 92 |
| o | Sinorhizobium meliloti 1021 | SMc00109 | | transcriptional regulator | insig. | 45 | 94 |
| o | Agrobacterium fabrum C58 | Atu0888 | | transcriptional regulator, MerR family | strong | 42 | 94 |
| o | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3027 | | Predicted transcriptional regulators | insig. | 42 | 92 |
| o | Marinobacter adhaerens HP15 | HP15_89 | | transcriptional regulator, MerR family protein | insig. | 44 | 93 |
| o | Rhodanobacter sp. FW510-T8 | OKGIIK_06310 | | MerR family transcriptional regulator | insig. | 43 | 92 |
| o | Rhodanobacter denitrificans MT42 | LRK55_RS17035 | | helix-turn-helix domain-containing protein | insig. | 43 | 91 |
| | Pseudomonas segetis P6 | MPMX49_01108 | | HTH-type transcriptional regulator HmrR | insig. | 39 | 91 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_1242 | | transcriptional regulator, MerR family | insig. | 41 | 93 |
| | Pseudomonas segetis P6 | MPMX49_00095 | | Mercuric resistance operon regulatory protein | insig. | 37 | 99 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_05540 | | heavy metal-responsive transcriptional regulator | insig. | 45 | 93 |
| o | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS08670 | | heavy metal-responsive transcriptional regulator | insig. | 45 | 93 |
| o | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_2290 | | Cd(II)/Pb(II)-responsive transcriptional regulator | insig. | 39 | 95 |
| | Dechlorosoma suillum PS | Dsui_1064 | | Cu(I)-responsive transcriptional regulator | cofit | 38 | 93 |
| o | Pseudomonas sp. S08-1 | OH686_16085 | | Transcriptional regulator, MerR family | insig. | 44 | 93 |
| o | Pseudomonas sp. DMC3 | GFF259 | | HTH-type transcriptional regulator ZntR | insig. | 40 | 95 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS16990 | | Cd(II)/Pb(II)-responsive transcriptional regulator | insig. | 40 | 94 |
| o | Pseudomonas sp. BP01 | JOY50_RS20690 | cadR | cadmium resistance transcriptional regulator CadR | insig. | 40 | 91 |
| o | Pseudomonas fluorescens GW456-L13 | PfGW456L13_958 | | Cd(II)/Pb(II)-responsive transcriptional regulator | strong | 39 | 95 |
| o | Pseudomonas syringae pv. syringae B728a | Psyr_4838 | | transcriptional regulator, MerR family | insig. | 37 | 91 |
| o | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_4838 | | transcriptional regulator, MerR family | insig. | 37 | 91 |
| | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS11645 | | helix-turn-helix domain-containing protein | insig. | 41 | 88 |
| | Sphingobium sp. HT1-2 | GFF3389 | | Heavy metal resistance transcriptional regulator HmrR | cofit | 40 | 93 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS01745 | | heavy metal-responsive transcriptional regulator | insig. | 41 | 96 |
| o | Shewanella sp. ANA-3 | Shewana3_4323 | | MerR family transcriptional regulator (RefSeq) | insig. | 36 | 100 |
| o | Pseudomonas fluorescens SBW25 | PFLU_RS28620 | | Cd(II)/Pb(II)-responsive transcriptional regulator | insig. | 38 | 95 |
| o | Pseudomonas fluorescens SBW25-INTG | PFLU_RS28620 | | Cd(II)/Pb(II)-responsive transcriptional regulator | insig. | 38 | 95 |
| o | Pseudomonas fluorescens FW300-N2C3 | AO356_10375 | | Cd(II)/Pb(II)-responsive transcriptional regulator | strong | 39 | 91 |
| o | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_3947 | | Cd(II)/Pb(II)-responsive transcriptional regulator | insig. | 39 | 91 |
| o | Pseudomonas lactucae CFBP13502 | GEMAOFIL_05533 | | HTH-type transcriptional regulator ZntR | cofit | 38 | 91 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS01130 | | MerR family transcriptional regulator | insig. | 43 | 93 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS01365 | | heavy metal-responsive transcriptional regulator | strong | 43 | 93 |
| o | Pseudomonas sp. SVBP6 | COO64_RS12725 | cadR | Cd(II)/Pb(II)-responsive transcriptional regulator | insig. | 38 | 99 |
| | Ralstonia solanacearum GMI1000 | RS_RS18685 | | Cd(II)/Pb(II)-responsive transcriptional regulator | insig. | 37 | 94 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS01310 | | Cd(II)/Pb(II)-responsive transcriptional regulator | sig. | 37 | 94 |
| | Methylophilus sp. DMC18 | GFF1813 | | HTH-type transcriptional regulator HmrR | insig. | 34 | 93 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS22375 | | Cd(II)/Pb(II)-responsive transcriptional regulator | insig. | 37 | 94 |
| o | Pseudomonas simiae WCS417 | PS417_26960 | | Cd(II)/Pb(II)-responsive transcriptional regulator | no data | 38 | 91 |
| o | Pseudomonas fluorescens FW300-N2E3 | AO353_08425 | | Cd(II)/Pb(II)-responsive transcriptional regulator | strong | 37 | 95 |
| o | Pseudomonas putida KT2440 | PP_5140 | | Transcriptional regulator, MerR family | insig. | 38 | 91 |
| | Shewanella amazonensis SB2B | Sama_1785 | | MerR family transcriptional regulator (RefSeq) | insig. | 35 | 93 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_3488 | | Cu(I)-responsive transcriptional regulator | strong | 34 | 99 |
| | Sphingobium sp. HT1-2 | GFF5208 | | Protein formerly called heavy metal resistance transcriptional regulator HmrR | insig. | 40 | 91 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS08955 | | Cu(I)-responsive transcriptional regulator | insig. | 37 | 98 |
| | Ralstonia solanacearum UW163 | UW163_RS04655 | | Cu(I)-responsive transcriptional regulator | insig. | 37 | 98 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS21850 | | Cd(II)/Pb(II)-responsive transcriptional regulator | cofit | 36 | 94 |
| | Ralstonia solanacearum UW163 | UW163_RS17335 | | Cd(II)/Pb(II)-responsive transcriptional regulator | insig. | 36 | 94 |
| | Pseudomonas sp. BP01 | JOY50_RS23260 | cueR | Cu(I)-responsive transcriptional regulator | insig. | 35 | 93 |
| | Pseudomonas sp. RS175 | PFR28_05243 | | HTH-type transcriptional regulator HmrR | insig. | 35 | 91 |
| | Pseudomonas putida KT2440 | PP_0585 | | putative metal-sensitive transcriptional regulator, MerR family | sig. | 34 | 96 |
| | Pseudomonas sp. RS175 | PFR28_04825 | | Mercuric resistance operon regulatory protein | insig. | 40 | 83 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS08015 | | MerR family transcriptional regulator | insig. | 37 | 92 |
| o | Pseudomonas aeruginosa PA14 | IKLFDK_18835 | | Cd(II)/Pb(II)-responsive transcriptional regulator | insig. | 41 | 91 |
| | Shewanella oneidensis MR-1 | SO1687 | | transcriptional regulator, MerR family (NCBI ptt file) | sig. | 36 | 92 |
| | Pseudomonas sp. S08-1 | OH686_07400 | | Cu(I)-responsive transcriptional regulator | insig. | 36 | 91 |
| | Sphingomonas koreensis DSMZ 15582 | Ga0059261_3023 | | Predicted transcriptional regulators | insig. | 43 | 91 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS18965 | | Hg(II)-responsive transcriptional regulator | cofit | 39 | 91 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_06085 | merR | Hg(II)-responsive transcriptional regulator | insig. | 39 | 91 |
| | Pseudomonas sp. SVBP6 | COO64_RS26335 | cueR | Cu(I)-responsive transcriptional regulator | insig. | 35 | 92 |
| | Variovorax sp. SCN45 | GFF4024 | | Transcriptional regulator, MerR family | insig. | 39 | 92 |
| | Shewanella sp. ANA-3 | Shewana3_2762 | | MerR family transcriptional regulator (RefSeq) | no data | 36 | 91 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS08315 | | Cu(I)-responsive transcriptional regulator | insig. | 36 | 98 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_08070 | | transcriptional regulator | strong | 34 | 92 |
| | Vibrio cholerae E7946 ATCC 55056 | CSW01_01430 | | Zn(2+)-responsive transcriptional regulator | insig. | 37 | 93 |
| | Sphingobium sp. HT1-2 | GFF5010 | | Protein formerly called heavy metal resistance transcriptional regulator HmrR | cofit | 39 | 92 |
| | Ralstonia solanacearum GMI1000 | RS_RS16770 | | Cu(I)-responsive transcriptional regulator | insig. | 35 | 98 |
| | Acinetobacter radioresistens SK82 | MPMX26_01947 | | HTH-type transcriptional regulator HmrR | no data | 35 | 89 |
| o | Dickeya dadantii 3937 | DDA3937_RS02550 | | Cd(II)/Pb(II)-responsive transcriptional regulator | sig. | 39 | 91 |
| o | Dickeya dianthicola 67-19 | HGI48_RS02580 | | Cd(II)/Pb(II)-responsive transcriptional regulator | insig. | 39 | 91 |
| | Marinobacter adhaerens HP15 | HP15_2969 | | transcriptional regulator, MerR family | cofit | 37 | 91 |
| | Sinorhizobium meliloti 1021 | SM_b21579 | | MerR family transcriptional regulator | insig. | 36 | 96 |
| | Escherichia coli BL21 | ECD_03143 | | zntA gene transcriptional activator | cofit | 38 | 92 |
| | Escherichia coli ECOR27 | NOLOHH_09300 | zntR | Zn(2+)-responsive transcriptional regulator | insig. | 38 | 92 |
| | Escherichia coli ECOR38 | HEPCGN_16330 | zntR | Zn(2+)-responsive transcriptional regulator | insig. | 38 | 92 |
| | Escherichia coli ECRC100 | OKFHMN_17500 | zntR | Zn(2+)-responsive transcriptional regulator | insig. | 38 | 92 |
| | Escherichia coli ECRC101 | MCAODC_08030 | zntR | Zn(2+)-responsive transcriptional regulator | insig. | 38 | 92 |
| | Escherichia coli ECRC102 | NIAGMN_15270 | zntR | Zn(2+)-responsive transcriptional regulator | cofit | 38 | 92 |
| | Escherichia coli ECRC62 | BNILDI_02220 | zntR | Zn(2+)-responsive transcriptional regulator | cofit | 38 | 92 |
| | Escherichia coli ECRC98 | JDDGAC_21130 | zntR | Zn(2+)-responsive transcriptional regulator | insig. | 38 | 92 |
| | Escherichia coli ECRC99 | KEDOAH_10640 | zntR | Zn(2+)-responsive transcriptional regulator | no data | 38 | 92 |
| | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_00411 | | HTH-type transcriptional regulator ZntR | insig. | 38 | 92 |
| | Escherichia coli BW25113 | b3292 | zntR | zinc-responsive transcriptional regulator (NCBI) | strong | 38 | 92 |
| | Klebsiella pneumoniae MKP103 | KDGMDA_06570 | | Zn(2+)-responsive transcriptional regulator | insig. | 40 | 96 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS17865 | | Hg(II)-responsive transcriptional regulator | insig. | 39 | 91 |