| Orth | Species | Gene | Name | Description | Fitness | %Id | Cov |
| | Xanthomonas campestris pv. campestris strain 8004 | Xcc-8004.1851.1 | | Cation:proton antiporter | insig. | 100 | 100 |
| o | Brevundimonas sp. GW460-12-10-14-LB2 | A4249_RS02040 | | cation:proton antiporter | insig. | 62 | 93 |
| o | Caulobacter crescentus NA1000 | CCNA_01568 | | Kef-type K+ transport system | sig. | 57 | 99 |
| o | Caulobacter crescentus NA1000 Δfur | CCNA_01568 | | Kef-type K+ transport system | cofit | 57 | 99 |
| o | Sphingobium sp. HT1-2 | GFF869 | | Cation:proton antiporter | cofit | 51 | 94 |
| | Bacteroides thetaiotaomicron VPI-5482 | BT1783 | | cation/H+ antiporter (NCBI ptt file) | insig. | 37 | 96 |
| | Bacteroides ovatus ATCC 8483 | BACOVA_04510 | | transporter, CPA2 family | insig. | 37 | 93 |
| | Synechococcus elongatus PCC 7942 | Synpcc7942_0546 | nha4 | Na+/H+ antiporter | strong | 43 | 91 |
| | Phocaeicola dorei CL03T12C01 | ABI39_RS09600 | | cation:proton antiporter | insig. | 34 | 93 |
| o | Synechocystis sp000284455 PCC 6803 | SGL_RS04015 | | cation:proton antiporter | insig. | 40 | 92 |
| | Parabacteroides merdae CL09T00C40 | HMPREF1078_RS09890 | | cation:proton antiporter | strong | 35 | 92 |
| o | Variovorax sp. OAS795 | ABID97_RS20710 | | cation:proton antiporter | no data | 39 | 95 |
| o | Variovorax sp. SCN45 | GFF4684 | | Na+/H+ antiporter | insig. | 39 | 96 |
| o | Lysobacter sp. OAE881 | ABIE51_RS12900 | | cation:proton antiporter | no data | 39 | 91 |
| o | Pseudomonas fluorescens FW300-N2C3 | AO356_16315 | | hypothetical protein | insig. | 36 | 94 |
| o | Pseudomonas sp. RS175 | PFR28_04568 | | Na(+)/H(+)-K(+) antiporter GerN | cofit | 35 | 93 |
| o | Cupriavidus basilensis FW507-4G11 | RR42_RS04680 | | potassium transporter Kef | insig. | 35 | 90 |
| o | Magnetospirillum magneticum AMB-1 | AMB_RS13190 | | Kef-type K+ transport systems | no data | 34 | 88 |
| o | Azospirillum sp. SherDot2 | MPMX19_00332 | | Na(+)/H(+)-K(+) antiporter GerN | insig. | 34 | 87 |
| o | Azospirillum brasilense Sp245 | AZOBR_RS03295 | | cation:proton antiporter | insig. | 33 | 87 |
| o | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS11575 | | cation:proton antiporter | no data | 29 | 96 |
| o | Rhodanobacter denitrificans MT42 | LRK55_RS17645 | | cation:proton antiporter | no data | 29 | 96 |
| o | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS17425 | | cation:proton antiporter | no data | 28 | 96 |
| o | Rhodanobacter sp. FW510-T8 | OKGIIK_07520 | kefB | cation:proton antiporter | no data | 28 | 96 |
| o | Shewanella loihica PV-4 | Shew_3217 | | sodium/hydrogen exchanger (RefSeq) | insig. | 29 | 94 |
| o | Hydrogenophaga sp. GW460-11-11-14-LB1 | GFF3015 | | Na(+)/H(+) antiporter | insig. | 28 | 94 |
| o | Sphingomonas koreensis DSMZ 15582 | Ga0059261_0989 | | transporter, CPA2 family (TC 2.A.37) | insig. | 26 | 87 |
| o | Methylophilus sp. DMC18 | GFF1111 | | Na(+)/H(+)-K(+) antiporter GerN | insig. | 28 | 92 |
| o | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS01860 | | cation:proton antiporter | no data | 27 | 93 |
| | Acinetobacter baumannii LAC-4 | RR41_RS17155 | | monovalent cation:proton antiporter-2 (CPA2) family protein | insig. | 27 | 95 |
| | Shewanella loihica PV-4 | Shew_2617 | | potassium efflux system protein (RefSeq) | insig. | 26 | 94 |
| | Synechococcus elongatus PCC 7942 | Synpcc7942_2359 | nha3 | Na+/H+ antiporter | no data | 26 | 92 |
| | Pseudomonas orientalis W4I3 | QF045_RS13630 | | monovalent cation:proton antiporter-2 (CPA2) family protein | insig. | 28 | 93 |
| | Shewanella sp. ANA-3 | Shewana3_2797 | | potassium efflux system protein (RefSeq) | insig. | 25 | 97 |
| | Rhodanobacter denitrificans FW104-10B01 | LRK54_RS16900 | | cation:proton antiporter | insig. | 26 | 93 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS25950 | | cation:proton antiporter | insig. | 25 | 99 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS58375 | | cation:proton antiporter | sig. | 25 | 99 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_25765 | | cation/H(+) antiporter | insig. | 25 | 99 |
| | Bosea sp. OAE506 | ABIE41_RS18920 | | monovalent cation:proton antiporter-2 (CPA2) family protein | insig. | 26 | 97 |
| | Pseudomonas sp. RS175 | PFR28_04526 | | Glutathione-regulated potassium-efflux system protein KefB | insig. | 25 | 93 |
| | Rhodanobacter denitrificans MT42 | LRK55_RS16615 | | cation:proton antiporter | cofit | 26 | 93 |
| | Pseudomonas fluorescens FW300-N2E2 | Pf6N2E2_4270 | | putative Glutathione-regulated potassium-efflux system protein KefB | insig. | 25 | 93 |
| o | Methanococcus maripaludis JJ | MMJJ_RS04925 | | cation:proton antiporter | insig. | 24 | 84 |
| o | Methanococcus maripaludis S2 | MMP_RS00560 | | cation:proton antiporter | sig. | 24 | 84 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_720 | | putative Glutathione-regulated potassium-efflux system protein KefB | insig. | 25 | 99 |
| | Pseudomonas sp. BP01 | JOY50_RS08720 | | cation:proton antiporter | insig. | 24 | 99 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_02555 | | Glutathione-regulated potassium-efflux system protein KefC | insig. | 28 | 93 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_2139 | | Kef-type potassium/proton antiporter, CPA2 family | strong | 28 | 94 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_2139 | | Kef-type potassium/proton antiporter, CPA2 family | insig. | 28 | 94 |
| | Pseudomonas simiae WCS417 | PS417_28255 | | potassium transporter | insig. | 25 | 93 |
| | Pseudomonas sp. DMC3 | GFF515 | | Glutathione-regulated potassium-efflux system protein KefB | cofit | 25 | 99 |
| | Pseudomonas fluorescens GW456-L13 | PfGW456L13_3558 | | Glutathione-regulated potassium-efflux system protein KefB | insig. | 27 | 92 |
| | Pseudomonas fluorescens FW300-N2C3 | AO356_11975 | | potassium transporter | insig. | 25 | 93 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS29915 | | cation:proton antiporter | insig. | 25 | 93 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS29915 | | cation:proton antiporter | sig. | 25 | 93 |
| | Rhodanobacter sp. FW510-T8 | OKGIIK_07940 | | Potassium transporter | insig. | 27 | 93 |
| | Pseudomonas fluorescens FW300-N2E3 | AO353_10075 | | potassium transporter | insig. | 25 | 99 |
| | Methylophilus sp. DMC18 | GFF2112 | | Glutathione-regulated potassium-efflux system protein KefC | insig. | 26 | 97 |
| | Pseudomonas syringae pv. syringae B728a | Psyr_5068 | | transporter, CPA2 family | insig. | 26 | 93 |
| | Pseudomonas syringae pv. syringae B728a ΔmexB | Psyr_5068 | | transporter, CPA2 family | insig. | 26 | 93 |
| | Pseudomonas sp. SVBP6 | COO64_RS01860 | | cation:proton antiporter | insig. | 25 | 93 |
| | Erwinia tracheiphila HP pepo 2.2 | IJEDHG_12185 | kefB | glutathione-regulated potassium-efflux system protein KefB | strong | 26 | 89 |
| | Shewanella oneidensis MR-1 | SO1647 | | glutathione-regulated potassium-efflux system protein KefB, putative (NCBI ptt file) | insig. | 25 | 97 |
| | Pontibacter actiniarum KMM 6156, DSM 19842 | CA264_05165 | | potassium transporter KefB | sig. | 24 | 90 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS03940 | | cation:proton antiporter | cofit | 26 | 92 |
| | Pseudomonas putida KT2440 | PP_5355 | | putative Sodium/proton antiporter | insig. | 23 | 99 |
| | Pseudomonas lactucae CFBP13502 | GEMAOFIL_00119 | | Glutathione-regulated potassium-efflux system protein KefB | cofit | 24 | 93 |
| | Dyella japonica UNC79MFTsu3.2 | ABZR86_RS13005 | | monovalent cation:proton antiporter-2 (CPA2) family protein | strong | 27 | 98 |
| | Pantoea agglomerans CFBP13505 P0401 | PagCFBP13505_RS21550 | | glutathione-regulated potassium-efflux system protein KefB | cofit | 26 | 89 |
| | Erwinia tracheiphila SCR3 | LU632_RS22735 | kefB | glutathione-regulated potassium-efflux system protein KefB | insig. | 26 | 89 |
| | Pseudomonas sp. S08-1 | OH686_17420 | | sodium/hydrogen exchanger | insig. | 25 | 93 |
| | Pseudomonas simiae WCS417 | PS417_11420 | | potassium transporter KefB | insig. | 28 | 93 |
| | Alteromonas macleodii MIT1002 | MIT1002_01563 | | K(+)/H(+) antiporter | insig. | 28 | 78 |
| | Pseudomonas sp. DMC3 | GFF1583 | | Glutathione-regulated potassium-efflux system protein KefC | cofit | 29 | 97 |
| | Pseudomonas fluorescens SBW25 | PFLU_RS11995 | | potassium transporter | insig. | 27 | 93 |
| | Pseudomonas fluorescens SBW25-INTG | PFLU_RS11995 | | potassium transporter | sig. | 27 | 93 |
| | Pseudomonas segetis P6 | ACVTMO_RS17355 | | monovalent cation:proton antiporter-2 (CPA2) family protein | insig. | 27 | 91 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_2002 | | putative Glutathione-regulated potassium-efflux system protein KefB | insig. | 25 | 93 |
| | Rhodanobacter sp000427505 FW510-R12 | LRK53_RS12045 | | cation:proton antiporter | insig. | 25 | 98 |
| | Paraburkholderia graminis OAS925 | ABIE53_003181 | | CPA2 family monovalent cation:H+ antiporter-2 | sig. | 27 | 92 |
| | Paraburkholderia bryophila 376MFSha3.1 | H281DRAFT_03955 | | transporter, CPA2 family | insig. | 26 | 96 |
| | Sinorhizobium meliloti 1021 | SM_b21555 | | potassium-efflux protein | insig. | 26 | 90 |
| | Burkholderia phytofirmans PsJN | BPHYT_RS15050 | | potassium transporter | insig. | 26 | 92 |
| | Pantoea sp. MT58 | IAI47_02030 | | glutathione-regulated potassium-efflux system protein KefB | insig. | 26 | 89 |
| | Pseudomonas fluorescens FW300-N1B4 | Pf1N1B4_4461 | | Glutathione-regulated potassium-efflux system protein KefB | no data | 30 | 92 |
| | Rahnella sp. WP5 | EX31_RS04495 | | glutathione-regulated potassium-efflux system protein KefB | insig. | 28 | 76 |
| | Paraburkholderia sabiae LMG 24235 | QEN71_RS01785 | | cation:proton antiporter | insig. | 26 | 92 |
| | Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | GFF3721 | | Glutathione-regulated potassium-efflux system protein KefB | insig. | 24 | 90 |
| | Sinorhizobium meliloti 1021 | SMc00898 | | glutathione-regulated potassium-efflux system transmembrane protein | sig. | 24 | 97 |
| | Dickeya dianthicola 67-19 | HGI48_RS19525 | | glutathione-regulated potassium-efflux system protein KefB | insig. | 26 | 89 |
| | Bosea sp. OAE506 | ABIE41_RS12365 | | monovalent cation:proton antiporter-2 (CPA2) family protein | strong | 26 | 89 |
| | Pseudomonas aeruginosa MRSN321 | DY961_RS06380 | kefB;inference=COORDINATES | glutathione-regulated potassium-efflux system protein KefB | sig. | 27 | 91 |
| | Pseudomonas aeruginosa PUPa3 | DQ20_RS46415 | kefB;inference=COORDINATES | glutathione-regulated potassium-efflux system protein KefB | insig. | 27 | 91 |
| | Pectobacterium carotovorum WPP14 | HER17_RS01955 | | glutathione-regulated potassium-efflux system protein KefB | cofit | 28 | 67 |
| | Pseudomonas aeruginosa PA14 | IKLFDK_05675 | | glutathione-regulated potassium-efflux system protein KefB | sig. | 27 | 91 |
| | Dickeya dadantii 3937 | DDA3937_RS19405 | | glutathione-regulated potassium-efflux system protein KefB | cofit | 26 | 80 |
| | Pseudomonas sp. BP01 | JOY50_RS24860 | | monovalent cation:proton antiporter-2 (CPA2) family protein | insig. | 25 | 68 |
| | Dickeya dianthicola ME23 | DZA65_RS20615 | | glutathione-regulated potassium-efflux system protein KefB | insig. | 26 | 89 |
| | Acidovorax sp. GW101-3H11 | Ac3H11_3902 | | Glutathione-regulated potassium-efflux system protein KefC | insig. | 28 | 81 |
| | Pseudomonas putida KT2440 | PP_0713 | | Kef-type potassium/proton antiporter, CPA2 family | insig. | 25 | 87 |