| Module |
| M00127 | Thiamine biosynthesis, prokaryotes, AIR (+ DXP/tyrosine) => TMP/TPP |
| M00895 | Thiamine biosynthesis, prokaryotes, AIR (+ DXP/glycine) => TMP/TPP |
| M00896 | Thiamine biosynthesis, archaea, AIR (+ NAD+) => TMP/TPP |
| M00899 | Thiamine salvage pathway, HMP/HET => TMP |
|