| KEGG ID | KO | Definition |
| tsn:W908_05810 | K07304 | methionine sulfoxide reductase A |
| tho:SP60_07205 | K07304 | methionine sulfoxide reductase A |
| rma:Rmag_0636 | K07304 | peptide methionine sulfoxide reductase |
| vok:COSY_0587 | K07304 | peptide methionine sulfoxide reductase MsrA |