- Glutaminase (GLS)
- Glucuronic Acid Epimerase (GLCE)
- Glycerol Kinase 2 (GK2)
- Glycerol Kinase (GK)
- Gamma-Glutamyl Hydrolase (gGH)
- Gamma-Glutamylcyclotransferase (gGCT)
- Guanine Deaminase (GDA)
- Glucosaminyl-N-Acetyl Transferase 3 (GCNT3)
- Glucosaminyl-N-Acetyl Transferase 2 (GCNT2)
- Glucosaminyl-N-Acetyl Transferase 1 (GCNT1)
- GTP Cyclohydrolase 1 (GCH1)
- Globoside Alpha-1,3-N-Acetylgalactosaminyltransferase 1 (GBGT1)
- 1,4-Alpha-Glucan Branching Enzyme 1 (GBE1)
- Phosphoribosylglycinamide Formyltransferase (GART)
- Glyceraldehyde-3-Phosphate Dehydrogenase, Spermatogenic (GAPDHS)
