| Organism | Ratio1 | Gene1 | Name1 | Description1 | Ratio2 | Gene2 | Name2 | Description2 | Cofit | Rank |
| Vibrio cholerae E7946 ATCC 55056 | 1.0 | CSW01_16995 | | MFS transporter | 1.0 | CSW01_18715 | | iron ABC transporter permease | 0.50 | 14 |
| Serratia liquefaciens MT49 | 0.22 | IAI46_18210 | | OFA family MFS transporter | 0.33 | IAI46_11075 | | iron ABC transporter permease | low | > 87 |
| Pectobacterium carotovorum WPP14 | 0.20 | HER17_RS11560 | | OFA family MFS transporter | 0.31 | HER17_RS08860 | | iron ABC transporter permease | low | > 75 |
| Pantoea sp. MT58 | 0.19 | IAI47_05625 | | MFS transporter | 0.33 | IAI47_03525 | | iron ABC transporter permease | low | > 76 |
| Escherichia coli ECOR38 | 0.19 | HEPCGN_14940 | yhjX | Uncharacterized MFS-type transporter YhjX | 0.31 | HEPCGN_15225 | shuU | heme ABC transporter permease ShuU/ChuU | low | > 88 |
| Escherichia coli Nissle 1917 | 0.19 | ECOLIN_RS20300 | | MFS transporter | 0.31 | ECOLIN_RS20060 | | heme ABC transporter permease ShuU/ChuU | low | > 55 |
| Escherichia fergusonii Becca | 0.19 | EFB2_00260 | | putative MFS-type transporter YhjX | 0.31 | EFB2_00303 | | Hemin transport system permease protein HmuU | low | > 86 |
| Enterobacter sp. TBS_079 | 0.19 | MPMX20_00187 | | putative MFS-type transporter YhjX | 0.34 | MPMX20_01915 | | Hemin transport system permease protein HmuU | low | > 85 |
| Escherichia coli ECRC99 | 0.19 | KEDOAH_12100 | yhjX | Uncharacterized MFS-type transporter YhjX | 0.31 | KEDOAH_11820 | chuU | heme permease protein ChuU | — | — |
| Escherichia coli ECRC98 | 0.19 | JDDGAC_19680 | yhjX | Uncharacterized MFS-type transporter YhjX | 0.31 | JDDGAC_19955 | chuU | heme permease protein ChuU | low | > 87 |
| Escherichia coli ECRC100 | 0.19 | OKFHMN_16050 | yhjX | Uncharacterized MFS-type transporter YhjX | 0.31 | OKFHMN_16325 | chuU | heme permease protein ChuU | low | > 79 |
| Escherichia coli ECRC102 | 0.19 | NIAGMN_13810 | yhjX | Uncharacterized MFS-type transporter YhjX | 0.31 | NIAGMN_14090 | chuU | heme permease protein ChuU | low | > 80 |
| Escherichia coli ECRC101 | 0.19 | MCAODC_06565 | yhjX | Uncharacterized MFS-type transporter YhjX | 0.31 | MCAODC_06840 | chuU | heme permease protein ChuU | low | > 87 |
| Rahnella sp. WP5 | 0.19 | EX31_RS20650 | | OFA family MFS transporter | 0.32 | EX31_RS13960 | | iron ABC transporter permease | low | > 89 |
| Pantoea agglomerans CFBP13505 P0401 | 0.18 | PagCFBP13505_RS20170 | | OFA family MFS transporter | 0.32 | PagCFBP13505_RS16170 | | iron ABC transporter permease | low | > 74 |
| Klebsiella pneumoniae MKP103 | 0.18 | KDGMDA_07640 | | oxalate/formate antiport family MFS transporter | 0.31 | KDGMDA_03150 | | iron ABC transporter | low | > 95 |
| Dickeya dadantii 3937 | 0.18 | DDA3937_RS09140 | | OFA family MFS transporter | 0.26 | DDA3937_RS06870 | | iron ABC transporter permease | low | > 74 |
| Klebsiella michiganensis M5al | 0.18 | BWI76_RS26905 | | oxalate/formate antiport family MFS transporter | 0.30 | BWI76_RS22470 | | transporter permease | low | > 92 |
| Dickeya dianthicola 67-19 | 0.17 | HGI48_RS09180 | | OFA family MFS transporter | 0.26 | HGI48_RS02455 | | iron ABC transporter permease | low | > 71 |
| Azospirillum brasilense Sp245 | 0.16 | AZOBR_RS07885 | | spermidine/putrescine ABC transporter substrate-binding protein | 0.25 | AZOBR_RS29435 | | hemin ABC transporter permease | low | > 97 |
| Rhodopseudomonas palustris CGA009 | 0.15 | TX73_010020 | | oxalate/formate MFS antiporter | 0.26 | TX73_010920 | | iron ABC transporter permease | low | > 86 |
| Azospirillum sp. SherDot2 | 0.15 | MPMX19_01625 | | Oxalate:formate antiporter | 0.21 | MPMX19_05164 | | putative ABC transporter permease protein | low | > 112 |
| Desulfovibrio vulgaris Hildenborough JW710 | 0.15 | DVU1163 | | major facilitator superfamily protein (TIGR) | 0.19 | DVU0649 | | iron compound ABC transporter, permease protein (TIGR) | low | > 55 |
| Burkholderia phytofirmans PsJN | 0.14 | BPHYT_RS29930 | | MFS transporter | 0.19 | BPHYT_RS04855 | | iron ABC transporter | low | > 109 |
| Paraburkholderia sabiae LMG 24235 | 0.14 | QEN71_RS20385 | | OFA family MFS transporter | 0.22 | QEN71_RS31160 | | iron ABC transporter permease | low | > 153 |
| Cupriavidus basilensis FW507-4G11 | 0.13 | RR42_RS31335 | | spermidine/putrescine ABC transporter substrate-binding protein | 0.24 | RR42_RS16135 | | ABC transporter permease | low | > 128 |
| Castellaniella sp019104865 MT123 | 0.13 | ABCV34_RS00230 | | OFA family MFS transporter | 0.23 | ABCV34_RS11140 | | iron ABC transporter permease | low | > 48 |
| Sinorhizobium meliloti 1021 | 0.12 | SM_b20272 | | transporter protein | 0.40 | SMc01511 | | hemin transport system permease transmembrane protein | low | > 103 |
| Pseudomonas fluorescens FW300-N2C3 | 0.11 | AO356_09820 | | MFS transporter | 0.37 | AO356_16120 | | ABC transporter permease | low | > 104 |
| Pseudomonas fluorescens FW300-N2E2 | 0.11 | Pf6N2E2_3843 | | MFS permease | 0.41 | Pf6N2E2_5165 | | Hemin ABC transporter, permease protein | low | > 103 |
| Variovorax sp. SCN45 | 0.11 | GFF5629 | | Uncharacterized MFS-type transporter | 0.31 | GFF2821 | | Hemin ABC transporter, permease protein | low | > 127 |
| Pseudomonas fluorescens GW456-L13 | 0.11 | PfGW456L13_363 | | MFS permease | 0.32 | PfGW456L13_3769 | | Hemin ABC transporter, permease protein | low | > 87 |
| Ralstonia solanacearum PSI07 | 0.11 | RPSI07_RS04830 | | MFS transporter | 0.32 | RPSI07_RS00910 | | iron ABC transporter permease | low | > 81 |
| Pseudomonas fluorescens FW300-N2E3 | 0.11 | AO353_12065 | | MFS transporter | 0.39 | AO353_14445 | | ABC transporter permease | low | > 101 |
| Pseudomonas sp. DMC3 | 0.11 | GFF4100 | | hypothetical protein | 0.36 | GFF4039 | | Hemin transport system permease protein HmuU | low | > 89 |
| Pseudomonas lactucae CFBP13502 | 0.11 | GEMAOFIL_00531 | | hypothetical protein | 0.40 | GEMAOFIL_04921 | | Hemin transport system permease protein HmuU | low | > 96 |
| Pseudomonas fluorescens SBW25-INTG | 0.11 | PFLU_RS01600 | | OFA family MFS transporter | 0.42 | PFLU_RS25690 | | iron ABC transporter permease | low | > 109 |
| Ralstonia solanacearum GMI1000 | 0.11 | RS_RS22185 | | MFS transporter | 0.19 | RS_RS12045 | | iron ABC transporter permease | low | > 80 |
| Pseudomonas fluorescens SBW25 | 0.11 | PFLU_RS01600 | | OFA family MFS transporter | 0.42 | PFLU_RS25690 | | iron ABC transporter permease | low | > 109 |
| Pseudomonas sp. RS175 | 0.11 | PFR28_04928 | | hypothetical protein | 0.40 | PFR28_03709 | | Hemin transport system permease protein HmuU | low | > 88 |
| Pseudomonas simiae WCS417 | 0.11 | PS417_01555 | | MFS transporter | 0.42 | PS417_23850 | | ABC transporter permease | low | > 88 |
| Pseudomonas orientalis W4I3 | 0.11 | QF045_RS04625 | | OFA family MFS transporter | 0.42 | QF045_RS26110 | | iron ABC transporter permease | low | > 93 |
| Rhizobium sp. OAE497 | 0.11 | ABIE40_RS03715 | | MFS transporter | 0.45 | ABIE40_RS14430 | | iron ABC transporter permease | low | > 107 |
| Pseudomonas fluorescens FW300-N1B4 | 0.11 | Pf1N1B4_1628 | | MFS permease | 0.40 | Pf1N1B4_2867 | | Hemin ABC transporter, permease protein | low | > 87 |
| Ralstonia sp. UNC404CL21Col | 0.11 | ABZR87_RS19700 | | OFA family MFS transporter | 0.20 | ABZR87_RS00090 | | iron ABC transporter permease | low | > 80 |
| Pseudomonas sp. SVBP6 | 0.11 | COO64_RS00235 | | OFA family MFS transporter | 0.37 | COO64_RS15045 | | iron ABC transporter permease | low | > 93 |
| Ralstonia solanacearum IBSBF1503 | 0.10 | RALBFv3_RS18765 | | MFS transporter | 0.19 | RALBFv3_RS04490 | | iron ABC transporter permease | low | > 76 |
| Ralstonia solanacearum UW163 | 0.10 | UW163_RS20365 | | MFS transporter | 0.19 | UW163_RS09180 | | iron ABC transporter permease | — | — |
| Pseudomonas syringae pv. syringae B728a | 0.10 | Psyr_4899 | | Major facilitator superfamily | 0.23 | Psyr_5104 | | transport system permease protein | low | > 86 |
| Pseudomonas syringae pv. syringae B728a ΔmexB | 0.10 | Psyr_4899 | | Major facilitator superfamily | 0.23 | Psyr_5104 | | transport system permease protein | low | > 86 |
| Pseudomonas sp. BP01 | 0.10 | JOY50_RS25495 | | OFA family MFS transporter | 0.33 | JOY50_RS27720 | | iron ABC transporter permease | low | > 84 |
| Pseudomonas putida KT2440 | 0.10 | PP_0288 | | putative Oxalate/formate antiporter | 0.34 | PP_4688 | | Heme/hemin ABC transporter, permease protein | low | > 96 |
| Herbaspirillum seropedicae SmR1 | 0.10 | HSERO_RS07415 | | MFS transporter | 0.20 | HSERO_RS21915 | | iron-siderophore ABC transporter permease | low | > 78 |
| Acidovorax sp. GW101-3H11 | 0.09 | Ac3H11_2770 | | Major facilitator superfamily MFS_1 | 0.34 | Ac3H11_227 | | Hemin ABC transporter, permease protein | low | > 79 |
| Hydrogenophaga sp. GW460-11-11-14-LB1 | 0.09 | GFF2749 | | Probable oxalate/formate antiporter | 0.31 | GFF2478 | | Hemin ABC transporter, permease protein | low | > 90 |
| Sphingobium sp. HT1-2 | 0.09 | GFF4058 | | Uncharacterized MFS-type transporter | 0.23 | GFF312 | | Vitamin B12 ABC transporter, permease protein BtuC | low | > 95 |
| Bosea sp. OAE506 | 0.09 | ABIE41_RS12045 | | MFS transporter | 0.36 | ABIE41_RS08180 | | iron chelate uptake ABC transporter family permease subunit | low | > 77 |
| Pseudomonas sp. S08-1 | 0.08 | OH686_04930 | | Uncharacterized MFS-type transporter | 0.33 | OH686_17300 | | Heme ABC transporter, permease protein HmuU | low | > 80 |
| Marinobacter adhaerens HP15 | 0.08 | HP15_28 | | major facilitator superfamily MFS_1 | 0.33 | HP15_2998 | | hemin ABC transporter, permease protein | low | > 73 |
| Sphingomonas koreensis DSMZ 15582 | 0.08 | Ga0059261_4201 | | Arabinose efflux permease | 0.23 | Ga0059261_0623 | | ABC-type Fe3+-siderophore transport system, permease component | low | > 68 |
| Dyella japonica UNC79MFTsu3.2 | 0.07 | ABZR86_RS15325 | | MFS transporter | 0.29 | ABZR86_RS04590 | | iron ABC transporter permease | low | > 74 |
| Pseudomonas segetis P6 | 0.07 | MPMX49_01829 | | L-lactate transporter | 0.43 | MPMX49_01264 | | Hemin transport system permease protein HmuU | low | > 75 |
| Dechlorosoma suillum PS | 0.07 | Dsui_1896 | | arabinose efflux permease family protein | 0.21 | Dsui_0530 | | ABC-type Fe3+-siderophore transport system, permease component | low | > 51 |
| Rhodanobacter sp. FW510-T8 | 0.07 | OKGIIK_15055 | | MFS transporter | 0.21 | OKGIIK_05365 | | Fe3+-siderophore ABC transporter permease | low | > 53 |
Not shown: 16 genomes with orthologs for CSW01_16995 only; 33 genomes with orthologs for CSW01_18715 only