| Q3ABU6 | MTNA_CARHZ | Carboxydothermus hydrogenoformans (strain ATCC BAA-161 / DSM 6008 / Z-2901) | mtnA CHY_1556 | Detail |
| Q5YQZ6 | MTNAB_NOCFA | Nocardia farcinica (strain IFM 10152) | mtnAB NFA_45440 | Detail |
| B8FRM1 | MTNA_DESHD | Desulfitobacterium hafniense (strain DCB-2 / DSM 10664) | mtnA Dhaf_3765 | Detail |
| Q39ZK3 | MTNA_GEOMG | Geobacter metallireducens (strain GS-15 / ATCC 53774 / DSM 7210) | mtnA Gmet_0072 | Detail |
| A9VFD5 | MTNA_BACMK | Bacillus mycoides (strain KBAB4) (Bacillus weihenstephanensis) | mtnA BcerKBAB4_3861 | Detail |
| Q2RXI0 | MTNA_RHORT | Rhodospirillum rubrum (strain ATCC 11170 / ATH 1.1.1 / DSM 467 / LMG 4362 / NCIB 8255 / S1) | mtnA Rru_A0360 | Detail |
| B7NGT8 | MTNA_ECOLU | Escherichia coli O17:K52:H18 (strain UMN026 / ExPEC) | mtnA ECUMN_4890 | Detail |
| Q5B590 | MTNA_EMENI | Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139) (Aspergillus nidulans) | mri1 AN4290 | Detail |
| B0TH58 | MTNA_HELMI | Heliobacterium modesticaldum (strain ATCC 51547 / Ice1) | mtnA Helmi_21080 HM1_2177 | Detail |
| B5XZW2 | MTNA_KLEP3 | Klebsiella pneumoniae (strain 342) | mtnA KPK_3949 | Detail |