| Organism | Ratio1 | Gene1 | Name1 | Description1 | Ratio2 | Gene2 | Name2 | Description2 | Cofit | Rank |
| Shewanella oneidensis MR-1 | 1.0 | SO0760 | amt | ammonium transporter (NCBI ptt file) | 1.0 | SO1272 | | polyamine ABC transporter, permease protein (NCBI ptt file) | 0.72 | 5 |
| Shewanella sp. ANA-3 | 0.98 | Shewana3_3531 | | Rh family protein/ammonium transporter (RefSeq) | 0.97 | Shewana3_3095 | | binding-protein-dependent transport systems inner membrane component (RefSeq) | low | > 73 |
| Shewanella loihica PV-4 | 0.90 | Shew_0847 | | Rh family protein/ammonium transporter (RefSeq) | 0.81 | Shew_0975 | | binding-protein-dependent transport systems inner membrane component (RefSeq) | low | > 60 |
| Shewanella amazonensis SB2B | 0.86 | Sama_0651 | | Rh-like protein/ammonium transporter (RefSeq) | 0.76 | Sama_2640 | | binding-protein-dependent transport systems inner membrane component (RefSeq) | low | > 62 |
| Vibrio cholerae E7946 ATCC 55056 | 0.75 | CSW01_03200 | | ammonium transporter | 0.34 | CSW01_07155 | | spermidine/putrescine ABC transporter permease PotB | low | > 62 |
| Pseudomonas segetis P6 | 0.64 | ACVTMO_RS22540 | | ammonium transporter | 0.65 | ACVTMO_RS02705 | | ABC transporter permease subunit | low | > 75 |
| Pseudomonas sp. S08-1 | 0.64 | OH686_13765 | | Ammonium transporter | 0.65 | OH686_11450 | | Putrescine transport system permease protein PotH | low | > 80 |
| Pseudomonas stutzeri RCH2 | 0.63 | Psest_3771 | | probable ammonium transporter, marine subtype | 0.57 | Psest_4281 | | ABC-type spermidine/putrescine transport system, permease component I | 0.21 | 61 |
| Marinobacter adhaerens HP15 | 0.58 | HP15_274 | | ammonium/methylammonium permease | 0.60 | HP15_938 | | spermidine/putrescine ABC transporter, permease protein | low | > 73 |
| Phaeobacter inhibens DSM 17395 | 0.49 | PGA1_c29410 | | ammonium transporter | 0.61 | PGA1_c34440 | | putrescine transport system permease protein PotH | low | > 62 |
| Synechocystis sp000284455 PCC 6803 | 0.37 | SGL_RS15695 | | ammonium transporter | 0.10 | SGL_RS16645 | | sugar ABC transporter permease | low | > 52 |
| Bacteroides stercoris CC31F | 0.34 | HMPREF1181_RS16015 | | ammonium transporter | 0.19 | HMPREF1181_RS12425 | | ABC transporter permease | low | > 56 |
| Rhodospirillum rubrum S1H | 0.28 | Rru_A0554 | | Rh-like protein/ammonium transporter (NCBI) | 0.57 | Rru_A1016 | | Binding-protein-dependent transport systems inner membrane component (NCBI) | low | > 58 |
| Paraburkholderia sabiae LMG 24235 | 0.22 | QEN71_RS23255 | | ammonium transporter | 0.56 | QEN71_RS12955 | | ABC transporter permease subunit | low | > 153 |
| Magnetospirillum magneticum AMB-1 | 0.22 | AMB_RS09935 | | ammonium transporter | 0.57 | AMB_RS13200 | | putrescine ABC transporter permease PotH | low | > 64 |
| Paraburkholderia graminis OAS925 | 0.22 | ABIE53_001796 | | Amt family ammonium transporter | 0.53 | ABIE53_002368 | | putrescine transport system permease protein | low | > 113 |
| Burkholderia phytofirmans PsJN | 0.21 | BPHYT_RS07910 | | ammonium transporter | 0.56 | BPHYT_RS23140 | | putrescine/spermidine ABC transporter permease | low | > 109 |
| Paraburkholderia bryophila 376MFSha3.1 | 0.21 | H281DRAFT_05071 | | ammonium transporter | 0.52 | H281DRAFT_05182 | | putrescine transport system permease protein | low | > 103 |
| Serratia liquefaciens MT49 | 0.21 | IAI46_05085 | | ammonium transporter AmtB | 0.58 | IAI46_08380 | | putrescine ABC transporter permease PotH | low | > 87 |
| Enterobacter sp. TBS_079 | 0.20 | MPMX20_01043 | | Ammonia channel | 0.62 | MPMX20_01497 | | Putrescine transport system permease protein PotH | low | > 85 |
| Enterobacter asburiae PDN3 | 0.20 | EX28DRAFT_2518 | | ammonium transporter | 0.62 | EX28DRAFT_2097 | | ABC-type spermidine/putrescine transport system, permease component I | low | > 76 |
| Pseudomonas lactucae CFBP13502 | 0.20 | GEMAOFIL_01859 | | Ammonia channel | 0.65 | GEMAOFIL_05562 | | Putrescine transport system permease protein PotH | low | > 96 |
| Pseudomonas simiae WCS417 | 0.20 | PS417_08635 | | ammonium transporter | 0.65 | PS417_27110 | | spermidine/putrescine ABC transporter permease | low | > 88 |
| Pseudomonas orientalis W4I3 | 0.20 | QF045_RS11350 | | ammonium transporter | 0.64 | QF045_RS01485 | | ABC transporter permease subunit | low | > 93 |
| Pectobacterium carotovorum WPP14 | 0.20 | HER17_RS15785 | | ammonium transporter AmtB | 0.61 | HER17_RS12490 | | putrescine ABC transporter permease PotH | low | > 75 |
| Salmonella enterica subsp. enterica serovar Typhimurium str. MS1868 | 0.20 | GFF4368 | | Ammonium transporter | 0.61 | GFF760 | | Putrescine transport system permease protein PotH (TC 3.A.1.11.2) | low | > 78 |
| Klebsiella pneumoniae MKP103 | 0.20 | KDGMDA_14685 | | ammonium transporter AmtB | 0.64 | KDGMDA_17715 | | putrescine ABC transporter permease PotH | low | > 95 |
| Rahnella sp. WP5 | 0.20 | EX31_RS22320 | | ammonium transporter AmtB | 0.55 | EX31_RS09620 | | putrescine ABC transporter permease PotH | low | > 89 |
| Pseudomonas fluorescens SBW25 | 0.20 | PFLU_RS08590 | | ammonium transporter | 0.64 | PFLU_RS28760 | | ABC transporter permease subunit | low | > 109 |
| Pseudomonas fluorescens SBW25-INTG | 0.20 | PFLU_RS08590 | | ammonium transporter | 0.64 | PFLU_RS28760 | | ABC transporter permease subunit | low | > 109 |
| Pseudomonas fluorescens FW300-N2E3 | 0.20 | AO353_19220 | | ammonium transporter | 0.67 | AO353_29315 | | spermidine/putrescine ABC transporter permease | low | > 101 |
| Klebsiella michiganensis M5al | 0.19 | BWI76_RS06605 | | ammonium transporter | 0.62 | BWI76_RS09470 | | putrescine ABC transporter permease | low | > 92 |
| Escherichia fergusonii Becca | 0.19 | EFB2_03606 | | Ammonia channel | 0.62 | EFB2_03205 | | Putrescine transport system permease protein PotH | low | > 86 |
| Desulfovibrio vulgaris Hildenborough JW710 | 0.19 | DVU1231 | amt | ammonium transporter (TIGR) | 0.31 | DVU0097 | potB | polyamine ABC transporter, permease protein (TIGR) | low | > 55 |
| Escherichia coli Nissle 1917 | 0.19 | ECOLIN_RS02700 | | ammonium transporter AmtB | 0.62 | ECOLIN_RS04560 | | putrescine ABC transporter permease PotH | low | > 55 |
| Pseudomonas fluorescens GW456-L13 | 0.19 | PfGW456L13_2267 | | Ammonium transporter | 0.65 | PfGW456L13_931 | | Putrescine transport system permease protein PotH (TC 3.A.1.11.2) | low | > 87 |
| Escherichia coli ECRC100 | 0.19 | OKFHMN_08260 | amtB | ammonium transporter AmtB | 0.61 | OKFHMN_05950 | potH | putrescine ABC transporter permease PotH | low | > 79 |
| Escherichia coli ECRC98 | 0.19 | JDDGAC_11915 | amtB | ammonium transporter AmtB | 0.61 | JDDGAC_09585 | potH | putrescine ABC transporter permease PotH | low | > 87 |
| Escherichia coli BW25113 | 0.19 | b0451 | amtB | ammonium transporter (NCBI) | 0.61 | b0856 | potH | putrescine transporter subunit: membrane component of ABC superfamily (NCBI) | low | > 76 |
| Escherichia coli ECRC62 | 0.19 | BNILDI_22610 | amtB | ammonium transporter AmtB | 0.61 | BNILDI_20575 | potH | putrescine ABC transporter permease PotH | low | > 75 |
| Escherichia coli HS(pFamp)R (ATCC 700891) | 0.19 | OHPLBJKB_03222 | | Ammonia channel | 0.62 | OHPLBJKB_02812 | | Putrescine transport system permease protein PotH | low | > 74 |
| Erwinia amylovora T8 | 0.19 | OLJFJH_17905 | | ammonium transporter AmtB | 0.57 | OLJFJH_16300 | | putrescine ABC transporter permease PotH | low | > 58 |
| Escherichia coli ECRC99 | 0.19 | KEDOAH_19705 | amtB | ammonium transporter AmtB | 0.61 | KEDOAH_21960 | potH | putrescine ABC transporter permease PotH | — | — |
| Escherichia coli BL21 | 0.19 | ECD_00403 | | ammonium transporter | 0.62 | ECD_00861 | | putrescine ABC transporter permease | low | > 61 |
| Escherichia coli ECOR38 | 0.19 | HEPCGN_06875 | amtB | ammonium transporter AmtB | 0.62 | HEPCGN_02080 | potH | putrescine ABC transporter permease PotH | low | > 88 |
| Escherichia coli ECOR27 | 0.19 | NOLOHH_01195 | amtB | ammonium transporter AmtB | 0.61 | NOLOHH_22320 | potH | putrescine ABC transporter permease PotH | low | > 76 |
| Escherichia coli ECRC101 | 0.19 | MCAODC_27485 | amtB | ammonium transporter AmtB | 0.61 | MCAODC_25165 | potH | putrescine ABC transporter permease PotH | low | > 87 |
| Escherichia coli ECRC102 | 0.19 | NIAGMN_06315 | amtB | ammonium transporter AmtB | 0.61 | NIAGMN_03995 | potH | putrescine ABC transporter permease PotH | low | > 80 |
| Pseudomonas fluorescens FW300-N2E2 | 0.19 | Pf6N2E2_2430 | | Ammonium transporter | 0.65 | Pf6N2E2_4516 | | Putrescine transport system permease protein PotH (TC 3.A.1.11.2) | low | > 103 |
| Pantoea sp. MT58 | 0.19 | IAI47_14580 | | ammonium transporter AmtB | 0.58 | IAI47_13035 | | putrescine ABC transporter permease PotH | low | > 76 |
| Pantoea agglomerans CFBP13505 P0401 | 0.19 | PagCFBP13505_RS10615 | | ammonium transporter AmtB | 0.58 | PagCFBP13505_RS04295 | | putrescine ABC transporter permease PotH | low | > 74 |
| Azospirillum sp. SherDot2 | 0.18 | MPMX19_01885 | | Ammonia channel | 0.55 | MPMX19_04881 | | Putrescine transport system permease protein PotH | low | > 112 |
| Pseudomonas sp. DMC3 | 0.18 | GFF4581 | | Ammonia channel | 0.66 | GFF284 | | Putrescine transport system permease protein PotH | low | > 89 |
| Pseudomonas sp. SVBP6 | 0.18 | COO64_RS05245 | | ammonium transporter | 0.65 | COO64_RS00875 | | ABC transporter permease subunit | low | > 93 |
| Dickeya dianthicola 67-19 | 0.18 | HGI48_RS05745 | | ammonium transporter AmtB | 0.63 | HGI48_RS09490 | | putrescine ABC transporter permease PotH | low | > 71 |
| Dickeya dianthicola ME23 | 0.18 | DZA65_RS06070 | | ammonium transporter AmtB | 0.64 | DZA65_RS09800 | | putrescine ABC transporter permease PotH | low | > 75 |
| Pseudomonas sp. RS175 | 0.18 | PFR28_00998 | | Ammonia channel | 0.66 | PFR28_04292 | | Putrescine transport system permease protein PotH | low | > 88 |
| Pseudomonas fluorescens FW300-N1B4 | 0.18 | Pf1N1B4_243 | | Ammonium transporter | 0.65 | Pf1N1B4_2262 | | Lysine ABC transporter, permease component (from data) | low | > 87 |
| Pseudomonas fluorescens FW300-N2C3 | 0.18 | AO356_03020 | | ammonium transporter | 0.65 | AO356_13170 | | spermidine/putrescine ABC transporter permease | low | > 104 |
| Pseudomonas putida KT2440 | 0.18 | PP_2106 | | putative Ammonium transporter | 0.65 | PP_5178 | | spermidine/putrescine ABC transporter - inner membrane subunit | low | > 96 |
| Xanthomonas campestris pv. campestris strain 8004 | 0.18 | Xcc-8004.249.1 | | Ammonium transporter | 0.60 | Xcc-8004.2211.1 | | Putrescine transport system permease protein PotH (TC 3.A.1.11.2) | low | > 74 |
| Pseudomonas aeruginosa PUPa3 | 0.18 | DQ20_RS33815 | | ammonium transporter | 0.64 | DQ20_RS37825 | | ABC transporter permease subunit | low | > 101 |
| Pseudomonas aeruginosa PA14 | 0.18 | IKLFDK_15465 | | ammonium transporter | 0.65 | IKLFDK_23940 | | putrescine ABC transporter permease PotH | low | > 98 |
| Pseudomonas aeruginosa MRSN321 | 0.18 | DY961_RS01760 | | ammonium transporter | 0.64 | DY961_RS21460 | | ABC transporter permease subunit | low | > 100 |
| Pseudomonas sp. BP01 | 0.18 | JOY50_RS22045 | | ammonium transporter | 0.65 | JOY50_RS22335 | | ABC transporter permease subunit | low | > 84 |
| Rhodopseudomonas palustris CGA009 | 0.18 | TX73_001425 | | ammonium transporter | 0.47 | TX73_021560 | | ABC transporter permease | low | > 86 |
| Azospirillum brasilense Sp245 | 0.17 | AZOBR_RS00845 | | ammonia channel protein | 0.52 | AZOBR_RS08835 | | putrescine/spermidine ABC transporter permease | low | > 97 |
| Pseudomonas syringae pv. syringae B728a ΔmexB | 0.16 | Psyr_2277 | | ammonium transporter | 0.65 | Psyr_4862 | | Binding-protein-dependent transport systems inner membrane component | low | > 86 |
| Pseudomonas syringae pv. syringae B728a | 0.16 | Psyr_2277 | | ammonium transporter | 0.65 | Psyr_4862 | | Binding-protein-dependent transport systems inner membrane component | low | > 86 |
| Rhizobium sp. OAE497 | 0.16 | ABIE40_RS18420 | | ammonium transporter | 0.56 | ABIE40_RS03275 | | ABC transporter permease subunit | low | > 107 |
| Dickeya dadantii 3937 | 0.16 | DDA3937_RS05700 | | ammonium transporter AmtB | 0.64 | DDA3937_RS09470 | | putrescine ABC transporter permease PotH | low | > 74 |
| Sinorhizobium meliloti 1021 | 0.15 | SMc03807 | | ammonium transporter | 0.51 | SMc00772 | | putrescine ABC transporter permease | low | > 103 |
| Bacteroides ovatus ATCC 8483 | 0.15 | BACOVA_03766 | | ammonium transporter | 0.21 | BACOVA_00083 | | ABC transporter, permease protein | low | > 96 |
| Castellaniella sp019104865 MT123 | 0.15 | ABCV34_RS04770 | | ammonium transporter | 0.49 | ABCV34_RS02370 | | ABC transporter permease subunit | low | > 48 |
| Caulobacter crescentus NA1000 Δfur | 0.15 | CCNA_01399 | | ammonium transporter/methylammonium transporter | 0.31 | CCNA_03238 | | ABC-type spermidine/putrescine transport system, permease component II | low | > 67 |
| Caulobacter crescentus NA1000 | 0.15 | CCNA_01399 | | ammonium transporter/methylammonium transporter | 0.31 | CCNA_03238 | | ABC-type spermidine/putrescine transport system, permease component II | low | > 66 |
| Hydrogenophaga sp. GW460-11-11-14-LB1 | 0.15 | GFF1892 | | Ammonium transporter | 0.46 | GFF2033 | | Putrescine transport system permease protein PotH (TC 3.A.1.11.2) | low | > 90 |
| Bosea sp. OAE506 | 0.14 | ABIE41_RS04755 | | ammonium transporter | 0.50 | ABIE41_RS21640 | | ABC transporter permease subunit | low | > 77 |
| Agrobacterium fabrum C58 | 0.13 | Atu2758 | | ammonium transporter | 0.50 | Atu0611 | | ABC transporter, membrane spanning protein | low | > 89 |
| Xanthobacter sp. DMC5 | 0.13 | GFF3985 | | Ammonia channel | 0.48 | GFF46 | | Putrescine transport system permease protein PotH | — | — |
Not shown: 41 genomes with orthologs for SO0760 only; 2 genomes with orthologs for SO1272 only