- Methionine Adenosyltransferase II Beta (MAT2b)
- Methionine Adenosyltransferase II Alpha (MAT2a)
- Methionine Adenosyltransferase I Alpha (MAT1a)
- Adenosylmethionine Decarboxylase 1 (AMD1)
- Aminocarboxymuconate Semialdehyde Decarboxylase (ACMSD)
- Cysteine Sulfinic Acid Decarboxylase (CSAD)
- Dopa Decarboxylase (DDC)
- Glycine Dehydrogenase (GLDC)
- Histidine Decarboxylase (HDC)
- Phosphatidylserine Decarboxylase (PISD)
- Phosphopantothenoylcysteine Decarboxylase (PPCDC)
- Uroporphyrinogen Decarboxylase (UROD)
- Spermidine Synthase (SRM)
- Farnesyltransferase Alpha (FNTa)
- Protein Geranylgeranyltransferase Type I Beta (PGGT1b)