- Nitrilase 1 (NIT1)
- N-Glycanase 1 (NGLY1)
- Never In Mitosis Gene A Related Kinase 4 (NEK4)
- Never In Mitosis Gene A Related Kinase 3 (NEK3)
- Never In Mitosis Gene A Related Kinase 1 (NEK1)
- Never In Mitosis Gene A Related Kinase 2 (NEK2)
- N-Acetylneuraminic Acid Synthase (NANS)
- N-Acetylgalactosaminidase Alpha (NAGa)
- N-Acetylglucosamine-1-Phosphodiester Alpha-N-Acetylglucosaminidase (NAGPa)
- NAD Kinase (NADK)
- NAD Synthetase 1 (NADSYN1)
- N-Acetylated Alpha Linked Acidic Dipeptidase 2 (NAaLAD2)
- Mevalonate Decarboxylase (MVD)
- Mevalonate Kinase (MVK)
- 5,10-Methenyltetrahydrofolate Synthetase (MTHFS)
