| Role | Gene | Name | |
| 2,3-dihydro-2,3-dihydroxybenzoate dehydrogenase (EC 1.3.1.28) | No genes | | |
| 2,3-dihydroxybenzoate-AMP ligase (EC 2.7.7.58) | No genes | | |
| Aerobactin siderophore receptor IutA | No genes | | |
| Amide synthase component of siderophore synthetase | No genes | | |
| Bacterioferritin | MPMX19_01993 | | |
| | MPMX19_01994 | | |
| Bacterioferritin-associated ferredoxin | No genes | | |
| Catechol siderophore ABC transporter, ATP-binding component | No genes | | |
| Catechol siderophore ABC transporter, permease component | No genes | | |
| Catechol siderophore ABC transporter, substrate-binding protein | No genes | | |
| Enterobactin receptor IrgA | No genes | | |
| Enterobactin receptor VctA | No genes | | |
| Ferric aerobactin ABC transporter, ATPase component | No genes | | |
| Ferric aerobactin ABC transporter, periplasmic substrate binding protein | No genes | | |
| Ferric aerobactin ABC transporter, permease component | No genes | | |
| Ferric hydroxamate ABC transporter (TC 3.A.1.14.3), ATP-binding protein FhuC | MPMX19_03235 | | |
| Ferric hydroxamate ABC transporter (TC 3.A.1.14.3), periplasmic substrate binding protein FhuD | No genes | | |
| Ferric hydroxamate ABC transporter (TC 3.A.1.14.3), permease component FhuB | MPMX19_03233 | | |
| Ferric hydroxamate outer membrane receptor FhuA | No genes | | |
| Ferric iron ABC transporter, ATP-binding protein | MPMX19_00419 | | |
| | MPMX19_01385 | | |
| Ferric iron ABC transporter, iron-binding protein | MPMX19_00421 | | |
| | MPMX19_01386 | | |
| | MPMX19_03263 | | |
| | MPMX19_04065 | | |
| | MPMX19_04511 | | |
| | MPMX19_04774 | | |
| | MPMX19_04778 | | |
| | MPMX19_05147 | | |
| Ferric iron ABC transporter, permease protein | MPMX19_00420 | | |
| | MPMX19_01379 | | |
| | MPMX19_03264 | | |
| | MPMX19_04064 | | |
| | MPMX19_04135 | | |
| | MPMX19_04510 | | |
| | MPMX19_04524 | | |
| | MPMX19_04775 | | |
| | MPMX19_05149 | | |
| Ferric uptake regulation protein FUR | MPMX19_00247 | | |
| | MPMX19_02095 | | |
| Ferric vibriobactin receptor ViuA | No genes | | |
| Ferric vibriobactin, enterobactin transport system, ATP-binding protein (TC 3.A.1.14.6) | No genes | | |
| Ferric vibriobactin, enterobactin transport system, ATP-binding protein ViuC (TC 3.A.1.14.6) | No genes | | |
| Ferric vibriobactin, enterobactin transport system, permease protein VctD (TC 3.A.1.14.6) | No genes | | |
| Ferric vibriobactin, enterobactin transport system, permease protein VctG (TC 3.A.1.14.6) | No genes | | |
| Ferric vibriobactin, enterobactin transport system, permease protein ViuD (TC 3.A.1.14.6) | No genes | | |
| Ferric vibriobactin, enterobactin transport system, permease protein ViuG (TC 3.A.1.14.6) | No genes | | |
| Ferric vibriobactin, enterobactin transport system, substrate-binding protein VctP (TC 3.A.1.14.6) | No genes | | |
| Ferric vibriobactin, enterobactin transport system, substrate-binding protein ViuP (TC 3.A.1.14.6) | No genes | | |
| Ferric vulnibactin receptor VuuA | No genes | | |
| Ferrichrome transport ATP-binding protein FhuC (TC 3.A.1.14.3) | No genes | | |
| Ferrichrome transport system permease protein FhuB (TC 3.A.1.14.3) | No genes | | |
| Ferrichrome-binding periplasmic protein precursor (TC 3.A.1.14.3) | No genes | | |
| Ferrichrome-iron receptor | MPMX19_03080 | | |
| | MPMX19_03231 | | |
| | MPMX19_03246 | | |
| | MPMX19_05479 | | |
| Ferrous iron transport protein A | MPMX19_03682 | | |
| Ferrous iron transport protein B | MPMX19_03683 | | |
| | MPMX19_06450 | | |
| Ferrous iron transport protein C | No genes | | |
| Hemin ABC transporter, permease protein | No genes | | |
| Hypothetical protein colocalized with Enterobactin receptor VctA | No genes | | |
| Hypothetical protein in aerobactin uptake cluster | No genes | | |
| Iron-regulated virulence regulatory protein irgB | No genes | | |
| Isochorismatase (EC 3.3.2.1) of siderophore biosynthesis | No genes | | |
| Isochorismate pyruvate-lyase of siderophore biosynthesis | No genes | | |
| Isochorismate synthase (EC 5.4.4.2) of siderophore biosynthesis | No genes | | |
| Non-ribosomal peptide synthetase modules, siderophore biosynthesis | No genes | | |
| Phosphopantetheinyl transferase component of siderophore synthetase (EC 2.7.8.-) | No genes | | |
| Putative TonB-dependent heme receptor HasR | No genes | | |
| Putative heme iron utilization protein | MPMX19_02617 | | |
| Pyridoxamine 5'-phosphate oxidase-related putative heme iron utilization protein | No genes | | |
| Regulatory small RNA involved in iron homeostasis RyhB | No genes | | |
| TonB-dependent heme and hemoglobin receptor HutA | No genes | | |
| TonB-dependent heme receptor HutR | No genes | | |
| TonB-dependent receptor | No genes | | |
| Transcriptional regulator near Vibriobactin biosynthetic gene custer | No genes | | |
| Transcriptional regulator, VCA0231 ortholog | No genes | | |
| Transcriptional repressor of aerobactin receptor iutR | No genes | | |
| Utilization protein for unknown catechol-siderophore X | No genes | | |
| Vibriobactin utilization protein ViuB | No genes | | |
| Vulnibactin utilization protein VuuB | No genes | | |