| Gi Muscarinic Cardiac Muscle Contraction |  | Physiological | ATP / Potassium cation / Calcium / Magnesium cation / Cyclic adenosine monophosphate |
| Gi Serotonergic Smooth Muscle Relaxation |  | Physiological | ATP / Potassium cation / Calcium / Magnesium cation / Cyclic adenosine monophosphate / Pyrophosphoric acid |
| Gi Serotonergic Vasoconstriction |  | Drug Action | ATP / Calcium / Magnesium cation / Cyclic adenosine monophosphate / Pyrophosphoric acid |
| Gimeracil Drug Metabolism |  | Metabolic | Gimeracil |
| Glasdegib Predicted Metabolism Pathway |  | Metabolic | Mesoheme / Glasdegib |
| Glecaprevir Action Pathway |  | Drug Action | Magnesium cation / Zinc / Glecaprevir |
| Glibenclamide Action Pathway |  | Drug Action | ATP / Glyburide / Potassium cation / Calcium |
| Gliclazide Action Pathway |  | Drug Action | ATP / Gliclazide / Potassium cation / Calcium |
| Gliclazide Action Pathway (New) |  | Drug Action | ATP / Gliclazide / Potassium cation / Calcium |
| Gliclazide Predicted Metabolism Pathway |  | Metabolic | Gliclazide / Mesoheme |
| Glimepiride Action Pathway |  | Drug Action | ATP / Glimepiride / Potassium cation / Calcium |
| Glipizide Action Pathway |  | Drug Action | ATP / Glipizide / Potassium cation / Calcium |
| Gliquidone Action Pathway |  | Drug Action | ATP / Gliquidone / Potassium cation / Calcium |
| Gliquidone Predicted Metabolism Pathway |  | Metabolic | Gliquidone / Mesoheme |
| Globoid Cell Leukodystrophy |  | Disease | Pyridoxal phosphate / Serine / ATP / Calcium / Magnesium cation / Zinc / Uridine diphosphate glucose / Hexadecanal / Uridine-5'-Diphosphate / N,N,N-Trimethyl-2-(phosphonooxy)ethanaminium |
| Globoid Cell Leukodystrophy |  | Disease | Pyridoxal phosphate / Serine / ATP / Calcium / Magnesium cation / Zinc / Uridine diphosphate glucose / Hexadecanal / Uridine-5'-Diphosphate / N,N,N-Trimethyl-2-(phosphonooxy)ethanaminium |
| Gluconeogenesis |  | Metabolic | Pyruvic acid / Biotin / NADH / ATP / Magnesium cation / 2-phospho-D-glyceric acid / Phosphoenolpyruvate / D-glyceraldehyde 3-phosphate / Oxogluric acid / Dihydroxyacetone phosphate |
| Glucose Transporter Defect (SGLT2) |  | Disease | Cysteine / Potassium cation / Urea |
| Glucose Transporter Defect (SGLT2) |  | Disease | Cysteine / Potassium cation / Urea |
| Glucose-6-phosphate Dehydrogenase Deficiency |  | Disease | Adenosine phosphate / ATP / Magnesium cation / Iron / 5-O-phosphono-alpha-D-ribofuranosyl diphosphate / D-glyceraldehyde 3-phosphate / Ribose-1-Phosphate / Ribulose-5-Phosphate / Dihydroxyacetone phosphate / Gluconolactone |
| Glucose-6-phosphate Dehydrogenase Deficiency |  | Disease | Adenosine phosphate / ATP / Magnesium cation / Iron / 5-O-phosphono-alpha-D-ribofuranosyl diphosphate / D-glyceraldehyde 3-phosphate / Ribose-1-Phosphate / Ribulose-5-Phosphate / Dihydroxyacetone phosphate / Gluconolactone |
| Glucose-Alanine Cycle |  | Metabolic | Pyridoxal phosphate / Pyruvic acid / Glutamic acid / NADH / Alanine / Oxogluric acid |
| GLUT-1 Deficiency Syndrome |  | Disease | ATP / Calcium / Magnesium cation / Iron / Zinc / Uridine diphosphate glucose / Alpha-D-Galactose-1-Phosphate / Uridine-5'-Diphosphate / Uridine monophosphate / Pyrophosphoric acid / Lactose |
| Glutamate Metabolism |  | Metabolic | Pyridoxal phosphate / Pyruvic acid / Biotin / Aspartic acid / L-Glutamine / Adenosine phosphate / Succinic acid / Glutamic acid / Glutathione / Glycine / Cysteine / NADH / Alanine / ATP / Magnesium cation / Zinc / 5-O-phosphono-alpha-D-ribofuranosyl diphosphate / Guanosine-5'-Monophosphate / gamma-Aminobutyric acid / Oxogluric acid / Flavin adenine dinucleotide / gamma-Glutamylcysteine / Pyrophosphoric acid |
| Glutaminolysis and Cancer |  | Disease | Pyridoxal phosphate / Pyruvic acid / Biotin / Aspartic acid / L-Glutamine / Succinic acid / Glutamic acid / Leucine / NADH / Alanine / ATP / Oxogluric acid / Flavin adenine dinucleotide / Citric acid / Maleic acid |