| Monooxygenase family protein (EC 1.14.-.-) | visC FTT_1217c | Q5NFL7 | 1 |
| MORN variant repeat protein | MXAN_4859 | Q1D2V5 | 1 |
| MotA/TolQ/ExbB proton channel family protein | MXAN_0818 | Q1DE42 | 1 |
| MotA/TolQ/ExbB proton channel family protein | PG_0782 | Q7MW63 | 1 |
| MotA/TolQ/ExbB proton channel family protein | PP_1898 | Q88LN1 | 1 |
| MotC | motC PA1460 | G3XD73 | 1 |
| Motility protein | B195_18451 | M5QFR9 | 1 |
| Motility protein A (Chemotaxis protein MotA) | motA BSU13690 | P28611 | 1 |
| MoxR-like ATPase | FTN_0204 | A0Q4E9 | 1 |
| MoxR-related protein | VSAK1_16627 | A6CUN6 | 1 |
| MPT51/MPB51 antigen | mpt51 fbpC1 fbpD mpb51 Rv3803c MTV026.08c | P9WQN7 | 1 |
| MscS family small conductance mechanosensitive ion channel | LMRG_02113 | A0A0H3GBK1 | 1 |
| MSHA biogenesis protein MshL | VC_0402 | Q9KUV9 | 1 |
| MSHA pilin protein MshA | VC_0409 | H9L4Q5 | 1 |
| MSM (Multiple sugar metabolism) operon regulatory protein | msmR spr1714 | Q8CWP2 | 1 |
| MtlA protein | SC1083_1346 | G4A938 | 1 |
| MucR family transcriptional regulator | NSU_0636 | G6E8G5 | 1 |
| Multi-sensor hybrid histidine kinase | NSU_4332 | G6EJ11 | 1 |
| Multidrug efflux pump subunit AcrA (AcrAB-TolC multidrug efflux pump subunit AcrA) (Acriflavine resistance protein A) | acrA Z0578 ECs0516 | P0AE07 | 1 |
| Multidrug efflux transport system-membrane fusion protein | emrA PP_3549 | Q88H16 | 1 |
| Multidrug efflux transport system-putative membrane fusion protein | mdtA PP_3585 | Q88GY1 | 1 |
| Multidrug export protein EmrA | emrA b2685 JW2660 | P27303 | 1 |
| Multidrug resistance protein MdtB (Multidrug transporter MdtB) | mdtB yegN b2075 JW2060 | P76398 | 1 |
| Multidrug resistance protein, putative | VSAK1_12737 | A6D8R4 | 1 |
| Multidrug transporter (Tetracycline resistance protein) | tet FTT_0444 | Q5NHK9 | 1 |
| Multidrug/chloramphenicol efflux transport protein (MFS family) | cmr KPN_00874 | A6T6T9 | 1 |
| Multifunctional fusion protein [Includes: Protein translocase subunit SecD; Protein-export membrane protein SecF] | secD secF SAOUHSC_01746 | Q2FXT8 | 1 |
| Multiphosphoryl transfer protein | SC1083_1564 | G4A9P5 | 1 |
| Multiple sugar transport system substrate-binding protein | LMRG_02282 | A0A0H3GB42 | 1 |
| Multiple sugar-binding ABC transport system (ATP-binding protein) | msmK SPy_1976 | Q99XX6 | 1 |
| Multiple sugar-binding transport ATP-binding protein, putative | SAOUHSC_00175 | Q2G1F0 | 1 |
| Mur ligase family protein | FTN_1111 | A0Q6Y2 | 1 |
| Murein hydrolase activator NlpD | nlpD SF2765 S2958 | P0ADA4 | 1 |
| Murein lipoprotein | ETAE_1852 | D0Z8C0 | 1 |
| Murein lipoprotein | lpp KPN_02134 | A6TAE1 | 1 |
| MutR | SPJ_0171 | C1CBV8 | 1 |
| MutS domain protein | CPC_0335 | B1BJW6 | 1 |
| MutT/NUDIX family protein | NSU_0922 | G6E9A1 | 1 |
| Mycobacterial cell entry (Mce) related family protein | FTT_1249 | Q5NFI5 | 1 |
| Mycosin-3 (EC 3.4.21.-) (MycP3 protease) | mycP3 Rv0291 LH57_01590 | O53695 | 1 |
| N utilization substance protein B homolog (Protein NusB) | nusB PP_0518 | Q88QH5 | 1 |
| N utilization substance protein B homolog (Protein NusB) | nusB SPy_1818 M5005_Spy1545 | Q99Y88 | 1 |
| N-6 DNA Methylase family protein | HPSD74_1277 | U4SGU0 | 1 |
| N-acetyl-gamma-glutamyl-phosphate reductase (AGPR) (EC 1.2.1.38) (N-acetyl-glutamate semialdehyde dehydrogenase) (NAGSA dehydrogenase) | argC B195_13745 | M5QFF4 | 1 |
| N-acetylglucosamine repressor | VSAK1_10648 | A6D1X7 | 1 |
| N-acetylglucosamine-6-phosphate deacetylase (EC 3.5.1.25) | nagA SPy_1694 | Q99YI0 | 1 |
| N-acetylglucosaminyldiphosphoundecaprenol N-acetyl-beta-D-mannosaminyltransferase (EC 2.4.1.187) (N-acetylmannosaminyltransferase) (UDP-N-acetylmannosamine transferase) (UDP-N-acetylmannosamine:N-acetylglucosaminyl pyrophosphorylundecaprenol N-acetylmannosaminyltransferase) | tarA SAOUHSC_00640 | Q2G2L3 | 1 |
| N-acetylmuramic acid 6-phosphate etherase (MurNAc-6-P etherase) (EC 4.2.1.126) (N-acetylmuramic acid 6-phosphate hydrolase) (N-acetylmuramic acid 6-phosphate lyase) | murQ SSON_2517 | Q3YZB4 | 1 |
| N-acetylmuramic acid 6-phosphate etherase (MurNAc-6-P etherase) (EC 4.2.1.126) (N-acetylmuramic acid 6-phosphate hydrolase) (N-acetylmuramic acid 6-phosphate lyase) | murQ VSAK1_14057 | A6D3N7 | 1 |
| N-acetylmuramoyl-L-alanine amidase | amiC KPN_03225 | A6TDF2 | 1 |
| N-acetylmuramoyl-L-alanine amidase | B195_03113 | M5QM21 | 1 |
| N-acetylmuramoyl-L-alanine amidase | B195_00210 | M5QQH9 | 1 |
| N-acetylmuramoyl-L-alanine amidase | LMRG_01449 | A0A0H3GGH0 | 1 |
| N-acetylmuramoyl-L-alanine amidase (EC 3.5.1.28) | EDWATA_00244 | D4F0L6 | 1 |
| N-acetylmuramoyl-L-alanine amidase (EC 3.5.1.28) | amiC STM2991 | Q8ZMB9 | 1 |
| N-acetylmuramoyl-L-alanine amidase domain-containing protein SAOUHSC_02979 | SAOUHSC_02979 | Q2G222 | 1 |
| N-acetylmuramoyl-L-alanine amidase Rv3717 (EC 3.5.1.28) (Zinc-dependent peptidoglycan amidase) | Rv3717 | I6Y4D2 | 1 |
| N-acetylmuramoyl-L-alanine amidase sle1 (EC 3.5.1.28) | sle1 aaa MW0419 | Q7A1T4 | 1 |
| N-acetylmuramoyl-L-alanine amidase sle1 (EC 3.5.1.28) | sle1 aaa SAOUHSC_00427 | Q2G0U9 | 1 |
| N-acetylmuramoyl-L-alanine amidase, family 4 | PG_0076 | Q7MXT3 | 1 |
| N-acetylneuraminate epimerase (EC 5.1.3.24) (N-acetylneuraminate mutarotase) (Neu5Ac mutarotase) (Sialic acid epimerase) | nanM NTHI0235 | Q4QP39 | 1 |
| N-acetylneuraminate lyase (NAL) (Neu5Ac lyase) (EC 4.1.3.3) (N-acetylneuraminate pyruvate-lyase) (N-acetylneuraminic acid aldolase) (Sialate lyase) (Sialic acid aldolase) (Sialic acid lyase) | nanA CPC_0202 | B1BKM1 | 1 |
| N-acetylneuraminate lyase (NAL) (Neu5Ac lyase) (EC 4.1.3.3) (N-acetylneuraminate pyruvate-lyase) (N-acetylneuraminic acid aldolase) (Sialate lyase) (Sialic acid aldolase) (Sialic acid lyase) | nanA STM3339 | Q8ZLQ6 | 1 |
| N-acetyltransferase Eis (EC 2.3.1.-) (Aminoglycoside N-acetyltransferase) (Enhanced intracellular survival protein) (Protein-lysine N-acetyltransferase) | eis Rv2416c MTCY253.04 | P9WFK7 | 1 |
| N-formylglutamate amidohydrolase | hutG PA5091 | Q9HU92 | 1 |
| N-methylhydantoinase | HP_0696 | O25403 | 1 |
| N-succinylglutamate 5-semialdehyde dehydrogenase (EC 1.2.1.71) (Succinylglutamic semialdehyde dehydrogenase) (SGSD) | astD aruD PA0898 | O50174 | 1 |
| N5-carboxyaminoimidazole ribonucleotide mutase (N5-CAIR mutase) (EC 5.4.99.18) (5-(carboxyamino)imidazole ribonucleotide mutase) | purE Fphi_0416 | B0U005 | 1 |
| N5-carboxyaminoimidazole ribonucleotide mutase (N5-CAIR mutase) (EC 5.4.99.18) (5-(carboxyamino)imidazole ribonucleotide mutase) | purE SPy_0033 | Q9A1Y6 | 1 |
| NA | LI0545 | Q1MQX8 | 1 |
| Na(+)-translocating NADH-quinone reductase subunit A (Na(+)-NQR subunit A) (Na(+)-translocating NQR subunit A) (EC 1.6.5.8) (NQR complex subunit A) (NQR-1 subunit A) | nqrA SC1083_2107 | G4AB72 | 1 |
| Na(+)-translocating NADH-quinone reductase subunit B (Na(+)-NQR subunit B) (Na(+)-translocating NQR subunit B) (EC 1.6.5.8) (NQR complex subunit B) (NQR-1 subunit B) | nqrB PA2998 | Q9HZK7 | 1 |
| Na(+)-translocating NADH-quinone reductase subunit C (Na(+)-NQR subunit C) (Na(+)-translocating NQR subunit C) (EC 1.6.5.8) (NQR complex subunit C) (NQR-1 subunit C) | nqrC HPSD74_1031 | U4SJH5 | 1 |
| Na(+)-translocating NADH-quinone reductase subunit E (Na(+)-NQR subunit E) (Na(+)-translocating NQR subunit E) (EC 1.6.5.8) (NQR complex subunit E) (NQR-1 subunit E) | nqrE VSAK1_12175 | A6D867 | 1 |
| Na(+)-translocating NADH-quinone reductase subunit F (Na(+)-NQR subunit F) (Na(+)-translocating NQR subunit F) (EC 1.6.5.8) (NQR complex subunit F) (NQR-1 subunit F) | nqrF HPSD74_1034 | U4SHF7 | 1 |
| Na(+)/H(+) antiporter NhaB (Sodium/proton antiporter NhaB) | nhaB VSAK1_03429 | A6CXH8 | 1 |
| Na(+)/H(+) antiporter subunit D1 (Mnh complex subunit D1) | mnhD1 SAOUHSC_00886 | Q2G2H7 | 1 |
| Na(+)/H(+) antiporter subunit G1 (Mnh complex subunit G1) | mnhG1 SAOUHSC_00883 | Q2G2H9 | 1 |
| Na+/H+ antiporter | nha2 spr0573 | Q8DQP2 | 1 |
| Na+/H+ antiporter, putative | SAOUHSC_02601 | Q2FVU1 | 1 |
| NAD dependent epimerase | wbtF FTN_1425 | A0Q7S8 | 1 |
| NAD nucleotidase | SC1083_1263 | G4A8W0 | 1 |
| NAD(P) transhydrogenase subunit alpha (EC 1.6.1.2) | SC1083_0726 | G4A7D0 | 1 |
| NAD(P) transhydrogenase subunit alpha (EC 1.6.1.2) | pntA HPSD74_2115 | U4S925 | 1 |
| NAD(P) transhydrogenase subunit alpha (EC 1.6.1.2) | pntA SCH_1497 | Q57PF8 | 1 |
| NAD(P) transhydrogenase subunit beta (EC 1.6.1.2) (Nicotinamide nucleotide transhydrogenase subunit beta) | SC1083_0727 | G4A7D1 | 1 |
| NAD(P) transhydrogenase subunit beta (EC 1.6.1.2) (Nicotinamide nucleotide transhydrogenase subunit beta) | HPSD74_2114 | U4SAE2 | 1 |
| NAD(P) transhydrogenase subunit beta (EC 1.6.1.2) (Nicotinamide nucleotide transhydrogenase subunit beta) | VSAK1_14802 | A6D372 | 1 |
| NAD(P) transhydrogenase subunit beta (EC 1.6.1.2) (Nicotinamide nucleotide transhydrogenase subunit beta) | pntB SCH_1498 | Q57PF7 | 1 |
| NAD(P)H dehydrogenase (quinone) (EC 1.6.5.2) (Flavoprotein WrbA) (NAD(P)H:quinone oxidoreductase) (NQO) | STM1119 | Q8ZQ40 | 1 |
| NAD(P)H dehydrogenase (quinone) (EC 1.6.5.2) (Flavoprotein WrbA) (NAD(P)H:quinone oxidoreductase) (NQO) | YPO1857 y2449 YP_1536 | Q8ZF61 | 1 |
| NAD(P)H dehydrogenase (quinone) (EC 1.6.5.2) (Flavoprotein WrbA) (NAD(P)H:quinone oxidoreductase) (NQO) | wrbA b1004 JW0989 | P0A8G6 | 1 |
| NAD(P)H-dependent flavin reductase | VSAK1_18157 | A6CVJ2 | 1 |
| NAD-dependent aldehyde dehydrogenase | Fphi_1636 | B0TZU8 | 1 |
| NAD-dependent aldehyde dehydrogenase | FTN_0963 | A0Q6I6 | 1 |
| NAD-dependent aldehyde dehydrogenase | VSAK1_17132 | A6CUY7 | 1 |
| NAD-dependent malic enzyme (EC 1.1.1.38) | maeA FTT_0917 | Q5NGC8 | 1 |
| NAD-dependent malic enzyme (NAD-ME) (EC 1.1.1.38) | maeA PA3471 | Q9HYD5 | 1 |
| NAD-dependent malic enzyme (NAD-ME) (EC 1.1.1.38) | maeA sfcA b1479 JW5238 | P26616 | 1 |
| NAD-dependent malic enzyme (NAD-ME) (EC 1.1.1.38) | maeA VSAK1_06180 | A6CZM6 | 1 |