| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| P0ABH4 | Rod shape-determining protein MreD; | mreD; b3249 JW3218; | NP_417715.1;YP_491432.1; | 162 | escherichia-coli |
| P0AF08 | Protein mrp; | mrp; b2113 JW2100; | NP_416616.4;YP_490353.1; | 369 | escherichia-coli |
| P24202 | Mrr restriction system protein; EcoKMrr; | mrr; b4351 JW4314; | NP_418771.1;YP_492482.1; | 304 | escherichia-coli |
| P60752 | Lipid A export ATP-binding/permease protein MsbA; EC 3.6.3.-; | msbA; b0914 JW0897; | NP_415434.1;YP_489186.1; | 582 | escherichia-coli |
| P77338 | Mechanosensitive channel MscK; Potassium efflux system KefA; | mscK; aefA kefA; b0465 JW0454; | NP_414998.1;YP_488756.1; | 1120 | escherichia-coli |
| P0A742 | Large-conductance mechanosensitive channel; | mscL; yhdC; b3291 JW3252; | NP_417749.1;YP_492142.1; | 136 | escherichia-coli |
| P0C0S1 | Small-conductance mechanosensitive channel; | mscS; yggB; b2924 JW2891; | NP_417399.1;YP_491124.1; | 286 | escherichia-coli |
| P39285 | Miniconductance mechanosensitive channel MscM; | mscM; yjeP; b4159 JW4120; | NP_418583.1;YP_492304.1; | 1107 | escherichia-coli |
| P0A744 | Peptide methionine sulfoxide reductase MsrA; Protein-methionine-S-oxide reductase; EC 1.8.4.11; Peptide Met(O) reductase; Peptide-methionine (S)-S-oxide reductase; | msrA; pms; b4219 JW4178; | NP_418640.1;YP_492361.1; | 212 | escherichia-coli |
| P0A746 | Peptide methionine sulfoxide reductase MsrB; EC 1.8.4.12; Peptide-methionine (R)-S-oxide reductase; | msrB; yeaA; b1778 JW1767; | NP_416292.1;YP_490039.1; | 137 | escherichia-coli |
| P76270 | Free methionine-R-sulfoxide reductase; fRMsr; EC 1.8.4.14; | msrC; yebR; b1832 JW1821; | NP_416346.4;YP_490094.1; | 165 | escherichia-coli |
| P25738 | Acidic protein MsyB; | msyB; b1051 JW1039; | NP_415569.4;YP_489320.1; | 124 | escherichia-coli |
| P76346 | Protein MtfA; Mlc titration factor A; | mtfA; yeeI; b1976 JW1958; | NP_416484.2;YP_490225.1; | 265 | escherichia-coli |
| P46022 | Monofunctional biosynthetic peptidoglycan transglycosylase; Monofunctional TGase; EC 2.4.2.-; | mtgA; yrbM; b3208 JW3175; | NP_417675.1;YP_491393.1; | 242 | escherichia-coli |
| P09424 | Mannitol-1-phosphate 5-dehydrogenase; EC 1.1.1.17; | mtlD; b3600 JW3574; | NP_418057.1;YP_491834.1; | 382 | escherichia-coli |
| P0AF10 | Mannitol operon repressor; Mannitol repressor protein; | mtlR; b3601 JW3575; | NP_418058.1;YP_491833.1; | 195 | escherichia-coli |
| P0AF12 | 5'-methylthioadenosine/S-adenosylhomocysteine nucleosidase; MTA/SAH nucleosidase; MTAN; EC 3.2.2.9; 5'-methylthioadenosine nucleosidase; MTA nucleosidase; P46; S-adenosylhomocysteine nucleosidase; AdoHcy nucleosidase; SAH nucleosidase; SRH nucleosidase; | mtnN; mtn pfs yadA; b0159 JW0155; | NP_414701.1;YP_488462.1; | 232 | escherichia-coli |
| P40874 | N-methyl-L-tryptophan oxidase; MTOX; EC 1.5.3.-; | solA; b1059 JW1046; | NP_415577.1;YP_489327.1; | 372 | escherichia-coli |
| P0AAD2 | Tryptophan-specific transport protein; Tryptophan permease; | mtr; b3161 JW3130; | NP_417630.1;YP_491348.1; | 414 | escherichia-coli |
| P0A9H1 | G/U mismatch-specific DNA glycosylase; EC 3.2.2.28; Double-strand-specific uracil glycosylase; Mismatch-specific uracil DNA-glycosylase; MUG; | mug; ygjF; b3068 JW3040; | NP_417540.1;YP_491260.1; | 168 | escherichia-coli |
