| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Methanococcus maripaludis S2 | MMP_RS02570 | | cation:proton antiporter | insig. | 100 | 100 |
| o | Dinoroseobacter shibae DFL-12 | Dshi_0930 | | sodium/hydrogen exchanger (RefSeq) | insig. | 37 | 98 |
| o | Pseudomonas stutzeri RCH2 | Psest_3506 | | Kef-type K+ transport system, predicted NAD-binding component | insig. | 37 | 92 |
| o | Rhodopseudomonas palustris CGA009 | TX73_009230 | | cation:proton antiporter | insig. | 29 | 91 |
| o | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_05165 | | potassium transporter KefB | sig. | 25 | 98 |
| o | Shewanella loihica PV-4 | Shew_2617 | | potassium efflux system protein (RefSeq) | insig. | 23 | 97 |
| o | Echinicola vietnamensis KMM 6221, DSM 17526 | Echvi_2814 | | Kef-type K+ transport systems, membrane components | sig. | 27 | 100 |
| | Variovorax sp. OAS795 | ABID97_RS02635 | | monovalent cation:proton antiporter-2 (CPA2) family protein | sig. | 25 | 95 |
| | Desulfovibrio vulgaris Miyazaki F | DvMF_1119 | | sodium/hydrogen exchanger (RefSeq) | insig. | 24 | 96 |
| | Methylophilus sp. DMC18 | GFF2772 | | Glutathione-regulated potassium-efflux system protein KefC | cofit | 25 | 94 |
| o | Shewanella sp. ANA-3 | Shewana3_2797 | | potassium efflux system protein (RefSeq) | insig. | 22 | 96 |
| o | Herbaspirillum seropedicae SmR1 | HSERO_RS09815 | | sodium:proton antiporter | insig. | 25 | 92 |
| | Variovorax sp. SCN45 | GFF3272 | | Inner membrane protein, KefB/KefC family | insig. | 24 | 95 |
| o | Shewanella amazonensis SB2B | Sama_1159 | | glutathione-regulated potassium-efflux system protein KefB, putative (RefSeq) | insig. | 23 | 97 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS03940 | | cation:proton antiporter | cofit | 33 | 59 |
| o | Shewanella oneidensis MR-1 | SO1647 | | glutathione-regulated potassium-efflux system protein KefB, putative (NCBI ptt file) | insig. | 22 | 97 |
| o | Pseudomonas sp. RS175 | PFR28_00999 | | Glutathione-regulated potassium-efflux system protein KefC | insig. | 25 | 99 |
| | Paraburkholderia graminis OAS925 | ABIE53_000724 | | CPA2 family monovalent cation:H+ antiporter-2 | sig. | 25 | 95 |
| o | Sinorhizobium meliloti 1021 | SMa1600 | | Potassium efflux protein | insig. | 25 | 91 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS01785 | | cation:proton antiporter | insig. | 26 | 95 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_01921 | | Kef-type potassium/proton antiporter, CPA2 family | insig. | 26 | 95 |
| | Alteromonas macleodii MIT1002 | MIT1002_01022 | | NEM-activable K(+)/H(+) antiporter | cofit | 24 | 91 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_03955 | | transporter, CPA2 family | insig. | 29 | 78 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_4269 | | Glutathione-regulated potassium-efflux system protein KefB | insig. | 25 | 95 |
| | Paraburkholderia graminis OAS925 | ABIE53_003181 | | CPA2 family monovalent cation:H+ antiporter-2 | sig. | 29 | 77 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS15050 | | potassium transporter | insig. | 30 | 76 |
| o | Cellulophaga baltica 18 | M666_RS16385 | | monovalent cation:proton antiporter-2 (CPA2) family protein | insig. | 25 | 97 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS02935 | | potassium transporter | sig. | 24 | 95 |
| o | Rahnella sp. WP5 | EX31_RS03815 | | glutathione-regulated potassium-efflux system protein KefC | insig. | 24 | 96 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_07940 | | Potassium transporter | insig. | 26 | 74 |
| o | Rhodospirillum rubrum S1H | Rru_A3670 | | Potassium efflux system protein (NCBI) | strong | 26 | 92 |
| o | Acinetobacter baumannii LAC-4 | RR41_RS17155 | | monovalent cation:proton antiporter-2 (CPA2) family protein | insig. | 25 | 98 |
| o | Serratia liquefaciens MT49 | IAI46_05280 | | Kef family K(+) transporter | insig. | 26 | 91 |
| o | Escherichia fergusonii Becca | EFB2_03580 | | Putative cation/proton antiporter YbaL | insig. | 26 | 91 |
| o | Escherichia coli Nissle 1917 | ECOLIN_RS02835 | | YbaL family putative K(+) efflux transporter | insig. | 26 | 91 |
| o | Rhizobium sp. OAE497 | ABIE40_RS02845 | | YbaL family putative K(+) efflux transporter | insig. | 25 | 92 |
| o | Pectobacterium carotovorum WPP14 | HER17_RS15675 | | Kef family K(+) transporter | insig. | 25 | 91 |
| | Variovorax sp. SCN45 | GFF823 | | Inner membrane protein YbaL, KefB/KefC family | insig. | 23 | 94 |
| | Cupriavidus basilensis FW507-4G11 | RR42_RS02110 | | potassium transporter | insig. | 23 | 95 |
| o | Escherichia coli ECRC100 | OKFHMN_08120 | ybaL | Kef family K(+) transporter | insig. | 26 | 91 |
| o | Escherichia coli ECRC101 | MCAODC_27345 | ybaL | Kef family K(+) transporter | insig. | 26 | 91 |
| o | Escherichia coli ECRC102 | NIAGMN_06175 | ybaL | Kef family K(+) transporter | cofit | 26 | 91 |
| o | Escherichia coli ECRC99 | KEDOAH_19845 | ybaL | Kef family K(+) transporter | no data | 26 | 91 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS16615 | | cation:proton antiporter | cofit | 28 | 63 |
| o | Escherichia coli ECOR27 | NOLOHH_01050 | ybaL | Kef family K(+) transporter | insig. | 26 | 91 |
| o | Escherichia coli ECRC62 | BNILDI_22470 | ybaL | Kef family K(+) transporter | insig. | 26 | 91 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS16900 | | cation:proton antiporter | insig. | 27 | 64 |
| o | Escherichia coli BL21 | ECD_00429 | | inner membrane putative NAD(P)-binding transporter | insig. | 26 | 91 |
| o | Escherichia coli ECRC98 | JDDGAC_11770 | ybaL | Kef family K(+) transporter | insig. | 26 | 91 |
| o | Escherichia coli HS(pFamp)R (ATCC 700891) | OHPLBJKB_03196 | | Putative cation/proton antiporter YbaL | insig. | 26 | 91 |
| o | Escherichia coli BW25113 | b0478 | ybaL | predicted transporter with NAD(P)-binding Rossmann-fold domain (NCBI) | insig. | 26 | 91 |
| | Variovorax sp. OAS795 | ABID97_RS12470 | | YbaL family putative K(+) efflux transporter | insig. | 24 | 92 |
| | Pedobacter sp. GW460-11-11-14-LB5 | CA265_RS16170 | | sodium:proton antiporter | insig. | 31 | 67 |
| o | Escherichia coli ECOR38 | HEPCGN_06740 | ybaL | Kef family K(+) transporter | insig. | 26 | 91 |
| | Serratia liquefaciens MT49 | IAI46_03205 | | glutathione-regulated potassium-efflux system protein KefC | insig. | 24 | 89 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_05448 | | TrkA C-terminal domain protein | insig. | 30 | 71 |
| o | Dickeya dadantii 3937 | DDA3937_RS05810 | | Kef family K(+) transporter | sig. | 24 | 96 |
| o | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS19930 | | YbaL family putative K(+) efflux transporter | insig. | 24 | 92 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_339 | | Glutathione-regulated potassium-efflux system protein KefC | insig. | 24 | 89 |
| o | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.5067.1 | | Glutathione-regulated potassium-efflux system protein KefC | insig. | 23 | 98 |
| | Rhodopseudomonas palustris CGA009 | TX73_019900 | | YbaL family putative K(+) efflux transporter | insig. | 23 | 92 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_22345 | | potassium transporter KefC | insig. | 24 | 89 |
| | Methylophilus sp. DMC18 | GFF2112 | | Glutathione-regulated potassium-efflux system protein KefC | insig. | 25 | 89 |
| | Ralstonia solanacearum GMI1000 | RS_RS02050 | | potassium transporter | cofit | 24 | 95 |
| o | Klebsiella michiganensis M5al | BWI76_RS06855 | | Kef family K(+) transporter | insig. | 26 | 91 |
| o | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS10770 | | Kef family K(+) transporter | insig. | 24 | 91 |
| | Ralstonia solanacearum PSI07 | RPSI07_RS22100 | | potassium transporter | cofit | 24 | 95 |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.1409.1 | | Cation:proton antiporter | insig. | 24 | 91 |
| | Methylophilus sp. DMC18 | GFF218 | | Putative cation/proton antiporter YbaL | insig. | 24 | 90 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS12045 | | cation:proton antiporter | insig. | 28 | 64 |
| o | Dechlorosoma suillum PS | Dsui_3298 | | Kef-type K+ transport system, predicted NAD-binding component | strong | 25 | 92 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_382 | | TrkA-N:Sodium/hydrogen exchanger | insig. | 23 | 91 |
| | Dechlorosoma suillum PS | Dsui_1383 | | transporter, monovalent cation:proton antiporter-2 (CPA2) family | cofit | 22 | 94 |
| o | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF194 | | Glutathione-regulated potassium-efflux system protein KefC | insig. | 22 | 99 |
| o | Dickeya dianthicola ME23 | DZA65_RS06185 | | Kef family K(+) transporter | insig. | 25 | 91 |
| o | Marinobacter adhaerens HP15 | HP15_1690 | | glutathione-regulated potassium-efflux system protein KefC | insig. | 22 | 90 |
| | Ralstonia solanacearum IBSBF1503 | RALBFv3_RS11200 | | potassium transporter | insig. | 24 | 95 |
| | Ralstonia solanacearum UW163 | UW163_RS02380 | | potassium transporter | insig. | 24 | 95 |
| o | Enterobacter sp. TBS_079 | MPMX20_01079 | | Putative cation/proton antiporter YbaL | insig. | 25 | 91 |
| o | Xanthobacter sp. DMC5 | GFF1811 | | Putative cation/proton antiporter YbaL | insig. | 25 | 92 |
| | Magnetospirillum magneticum AMB-1 | AMB_RS20195 | | iron transporter MagA | cofit | 25 | 67 |
| | Rahnella sp. WP5 | EX31_RS22550 | | Kef family K(+) transporter | insig. | 25 | 91 |
| | Pseudomonas sp. RS175 | PFR28_02569 | | Glutathione-regulated potassium-efflux system protein KefC | insig. | 24 | 89 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS15750 | | cation:proton antiporter | insig. | 30 | 65 |
| o | Klebsiella pneumoniae MKP103 | KDGMDA_14915 | | Kef family K(+) transporter | insig. | 25 | 91 |
| o | Dickeya dianthicola 67-19 | HGI48_RS05860 | | Kef family K(+) transporter | sig. | 25 | 91 |
| o | Pantoea sp. MT58 | IAI47_14430 | | Kef family K(+) transporter | insig. | 24 | 91 |
| o | Pseudomonas sp. SVBP6 | COO64_RS09190 | kefC | glutathione-regulated potassium-efflux system protein KefC | insig. | 24 | 90 |
| | Ralstonia sp. UNC404CL21Col | ABZR87_RS07090 | | monovalent cation:proton antiporter family protein | cofit | 24 | 95 |
| | Pseudomonas putida KT2440 | PP_5355 | | putative Sodium/proton antiporter | insig. | 27 | 66 |
| o | Pseudomonas fluorescens FW300-N2E3 | AO353_24375 | | potassium transporter KefC | insig. | 24 | 97 |
| | Escherichia fergusonii Becca | EFB2_03998 | | Glutathione-regulated potassium-efflux system protein KefC | insig. | 22 | 96 |
| | Escherichia coli Nissle 1917 | ECOLIN_RS00255 | | glutathione-regulated potassium-efflux system protein KefC | insig. | 22 | 96 |
| | Herbaspirillum seropedicae SmR1 | HSERO_RS17340 | | potassium transporter | insig. | 27 | 65 |
| | Pseudomonas sp. BP01 | JOY50_RS08720 | | cation:proton antiporter | insig. | 27 | 66 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF4397 | | POTASSIUM/PROTON ANTIPORTER ROSB | insig. | 25 | 91 |
| o | Azospirillum brasilense Sp245 | AZOBR_RS19290 | | potassium transporter KefB | strong | 22 | 95 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_03015 | | sodium:proton antiporter | insig. | 25 | 99 |
| | Alteromonas macleodii MIT1002 | MIT1002_02125 | | Inner membrane protein YbaL | strong | 25 | 91 |
| | Klebsiella michiganensis M5al | BWI76_RS04495 | | glutathione-regulated potassium-efflux system protein KefC | sig. | 23 | 96 |