| Role | Gene | Name | |
| 2,5-diketo-D-gluconate reductase A (EC 1.1.1.274) | No genes | | |
| 2,5-diketo-D-gluconic acid reductase B (EC 1.1.1.274) | No genes | | |
| 2-Keto-D-gluconate dehydrogenase (EC 1.1.99.4), membrane-bound, cytochrome c | No genes | | |
| 2-Keto-D-gluconate dehydrogenase (EC 1.1.99.4), membrane-bound, flavoprotein | No genes | | |
| 2-Keto-D-gluconate dehydrogenase (EC 1.1.99.4), membrane-bound, gamma subunit | No genes | | |
| 2-dehydro-3-deoxygluconate kinase (EC 2.7.1.45) | MPMX19_05795 | | |
| 2-ketoaldonate reductase, broad specificity (EC 1.1.1.215) (EC 1.1.1.-) | No genes | | |
| 5-keto-D-gluconate 5-reductase (EC 1.1.1.69) | MPMX19_06783 | | |
| Broad-specificity glycerol dehydrogenase (EC 1.1.99.22), subunit SldA | No genes | | |
| Broad-specificity glycerol dehydrogenase (EC 1.1.99.22), subunit SldB | No genes | | |
| Gluconate 2-dehydrogenase (EC 1.1.99.3), membrane-bound, cytochrome c | No genes | | |
| Gluconate 2-dehydrogenase (EC 1.1.99.3), membrane-bound, flavoprotein | MPMX19_02854 | | |
| Gluconate 2-dehydrogenase (EC 1.1.99.3), membrane-bound, gamma subunit | MPMX19_02855 | | |
| Gluconate operon transcriptional repressor | No genes | | |
| Gluconate permease | No genes | | |
| Gluconate permease, Bsu4004 homolog | No genes | | |
| Gluconate transporter family protein | No genes | | |
| Gluconate utilization system Gnt-I transcriptional repressor | MPMX19_05332 | | |
| Gluconokinase (EC 2.7.1.12) | MPMX19_05799 | | |
| | MPMX19_05869 | | |
| Glucose 1-dehydrogenase (EC 1.1.1.47) | No genes | | |
| Glucose dehydrogenase (EC 1.1.99.10), membrane-bound, cytochrome c | No genes | | |
| Glucose dehydrogenase (EC 1.1.99.10), membrane-bound, flavoprotein | No genes | | |
| Glucose dehydrogenase (EC 1.1.99.10), membrane-bound, gamma subunit | No genes | | |
| Glucose dehydrogenase, PQQ-dependent (EC 1.1.5.2) | MPMX19_06155 | | |
| High-affinity gluconate transporter GntT | No genes | | |
| Hypothetical oxidoreductase YqhD (EC 1.1.-.-) | No genes | | |
| Hypothetical transcriptional regulator YqhC | No genes | | |
| L-idonate 5-dehydrogenase (EC 1.1.1.264) | MPMX19_06785 | | |
| L-idonate, D-gluconate, 5-keto-D-gluconate transporter | No genes | | |
| Low-affinity gluconate/H+ symporter GntU | No genes | | |
| Positive regulator of L-idonate catabolism | No genes | | |
| Predicted gluconate TRAP family transporter, DctM subunit | MPMX19_02971 | | |
| | MPMX19_03905 | | |
| | MPMX19_04771 | | |
| Predicted gluconate TRAP family transporter, DctP subunit | No genes | | |
| Predicted gluconate TRAP family transporter, DctQ subunit | No genes | | |