| KEGG ID | KO | Definition |
| csa:Csal_1866 | K07304 | peptide methionine sulfoxide reductase |
| hel:HELO_2578 | K07304 | peptide methionine sulfoxide reductase MsrA (S-form specific) |
| haa:A5892_12700 | K07304 | peptide-methionine (S)-S-oxide reductase |
| cmai:BFX80_09100 | K07304 | peptide-methionine (S)-S-oxide reductase |
| kus:B9G99_14770 | K07304 | peptide-methionine (S)-S-oxide reductase |
| kma:B9H00_00215 | K07304 | peptide-methionine (S)-S-oxide reductase |