| MAPK signaling pathway |
| ErbB signaling pathway |
| Calcium signaling pathway |
| Chemokine signaling pathway |
| NF-kappa B signaling pathway |
| HIF-1 signaling pathway |
| Phosphatidylinositol signaling system |
| Oocyte meiosis |
| Protein processing in endoplasmic reticulum |
| Cardiac muscle contraction |
| Vascular smooth muscle contraction |
| Wnt signaling pathway |
| Axon guidance |
| VEGF signaling pathway |
| Osteoclast differentiation |
| Gap junction |
| Plant-pathogen interaction |
| Natural killer cell mediated cytotoxicity |
| T cell receptor signaling pathway |
| B cell receptor signaling pathway |
| Fc epsilon RI signaling pathway |
| Fc gamma R-mediated phagocytosis |
| Leukocyte transendothelial migration |
| Circadian rhythm |
| Circadian entrainment |
| Long-term potentiation |
| Synaptic vesicle cycle |
| Neurotrophin signaling pathway |
| Retrograde endocannabinoid signaling |
| Glutamatergic synapse |
| Cholinergic synapse |
| Serotonergic synapse |
| GABAergic synapse |
| Dopaminergic synapse |
| Long-term depression |
| Olfactory transduction |
| Taste transduction |
| Phototransduction |
| Phototransduction - fly |
| Insulin secretion |
| GnRH signaling pathway |
| Estrogen signaling pathway |
| Melanogenesis |
| Type II diabetes mellitus |
| Endocrine and other factor-regulated calcium reabsorption |
| Salivary secretion |
| Gastric acid secretion |
| Pancreatic secretion |
| Carbohydrate digestion and absorption |
| Protein digestion and absorption |
| Mineral absorption |
| Alzheimer's disease |
| Amyotrophic lateral sclerosis (ALS) |
| Huntington's disease |
| Amphetamine addiction |
| Morphine addiction |
| Nicotine addiction |
| Alcoholism |
| Pertussis |
| Leishmaniasis |
| Chagas disease (American trypanosomiasis) |
| African trypanosomiasis |
| Toxoplasmosis |
| Amoebiasis |
| Tuberculosis |
| Hepatitis C |
| HTLV-I infection |
| Epstein-Barr virus infection |
| Pathways in cancer |
| Glioma |
| Non-small cell lung cancer |
| Hypertrophic cardiomyopathy (HCM) |
| Arrhythmogenic right ventricular cardiomyopathy (ARVC) |
| Dilated cardiomyopathy |
