| ACTH | Adrenocorticotropin hormone |
| ACVR1 | Activin A receptor, type I |
| AD1 | Activation domain 1 |
| AD2 | Activation domain 2 |
| AF-1 | Activator function-1 |
| AF-2 | Activator function-2 |
| Akt | Protein kinase B |
| AMH | Anti-müllerian hormone |
| ANP | Atrial natriuretic peptide |
| AP-1 | Activator protein-1 |
| APC | Adenomatous polyposis coli gene |
| AR | Androgen receptor |
| β-ARK | β-Adrenergic receptor kinase |
| β-TrCP | Beta-transducin repeats-containing proteins |
| BMP | Bone morphogenetic protein |
| BNP | B-type natriuretic peptide |
| BXR | Benzoate X receptor |
| cAMP | Cyclic adenosine-3′,5′-monophosphate |
| CAR | Constitutive androstane receptor |
| CARM | Coactivator-associated arginine methyltransferase |
| CBP | CREB-binding protein |
| cGMP | Cyclic guanosine-3′,5′-monophosphate |
| CKI | Casein kinase I |
| CNP | C-type natriuretic peptide |
| CREB | cAMP response element-binding protein |
| DAG | Diacylglycerol |
| DAN | Differential screening-selected gene in neuroblastoma |
| DBD | DNA-binding domain |
| DRIP | Vitamin D receptor–interacting protein |
| DVL | Dishevelled |
| EGF | Epidermal growth factor |
| ER | Estrogen receptor |
| ERK | Extracellular signal–regulated kinase |
| FAD | Flavin adenine dinucleotide |
| FGF | Fibroblast growth factor |
| FMN | Flavin mononucleotide |
| FOX A1 | Forkhead transcription factor A1 |
| FXR | Farnesoid X-activated receptor |
| GAP | GTPase-activating protein |
| GAS | Interferon gamma activated sequences |
| GDP | Guanosine diphosphate |
| GH | Growth hormone |
| GHR | Growth hormone receptor |
| GLUT4 | Glucose transporter type 4 |
| GR | Glucocorticoid receptor |
| GRB2 | Growth factor receptor–bound protein-2 |
| GRE | Glucocorticoid response element |
| GRIP | Glucocorticoid receptor–interacting protein |
| GSK3 | Glycogen synthase kinase-3 |
| GTF | General transcription factor |
| GTP | Guanosine triphosphate |
| HRE | Hormone response element |
| HSP | Heat shock protein |
| ID | Receptor–repressor interaction domain |
| IGF | Insulin-like growth factor |
| I-jB | Inhibitor of nuclear factor kappa B |
| IKK | Inhibitor of nuclear factor kappa B kinase |
| IP3 | Inositol 1,4,5-trisphosphate |
| IP4 | Inositol 1,3,4,5-tetrakis-phosphate |
| ISRE | Interferon-stimulated response element |
| JAK | Janus kinase |
| KHD | Kinase homology domain |
| LBD | Ligand-binding domain |
| LH | Luteinizing hormone |
| LRP | Lipoprotein receptor related protein |
| LXR | Liver X receptor |
| MAPK | Mitogen-activated protein kinase |
| MEK | MAPK kinase |
| MR | Mineralocorticoid receptor |
| MSH | Melanocyte-stimulating hormone |
| N-Cor | Nuclear receptor corepressor |
| NF-κB | Nuclear factor kappa B |
| NO | Nitric oxide |
| NOS | Nitric oxide synthase |
| NPR | Natriuretic peptide receptor |
| NR | Nuclear receptor |
| NRPTK | Non-receptor protein tyrosine kinase |
| PAK | p21-activated kinase |
| P/CAF | p300/CBP-associated factor |
| P/CIP | p300/CBP cointegrator-associated protein |
| PDE | Phosphodiesterase |
| PDGF | Platelet-derived growth factor |
| PDK | Phosphatidylinositol-3,4,5 trisphosphate-dependent kinase |
| PHP-1a | Pseudohypoparathyroidism type 1a |
| PI-3K | Phosphoinositide-3-OH kinase |
| PIP2 | Phosphatidylinositol-4,5-bisphosphate |
| PIP3 | Phosphatidylinositol-3,4,5-trisphosphate |
| PI(3,4)P2 | Phosphatidylinositol-3,4-bisphosphate |
| PKA | Protein kinase A |
| PKB | Protein kinase B |
| PKC | Protein kinase C |
| PKG | cGMP-dependent protein kinase |
| PLCβ | Phospholipase C beta |
| PLCγ | Phospholipase C gamma |
| PLCPC | Phosphatidylcholine-selective phospholipase |
| POL II | RNA polymerase II |
| PPAR | Peroxisome proliferator–activated receptor |
| PR | Progesterone receptor |
| PTH | Parathyroid hormone |
| PXR | Pregnane X receptor |
| RANK | Receptor activator of nuclear factor kappa B |
| RAR | Retinoic acid receptor |
| RE | Response element |
| RGS | Regulators of G protein signaling |
| RSK | Ribosomal S6 kinase |
| RXR | Retinoid X receptor |
| SH2 | src homology domain type 2 |
| SIE | Sis-inducible element |
| SMRT | Silencing mediator for RXR and TR |
| SOCS | Suppressor of cytokine signaling |
| SOS | Son-of-sevenless |
| SOST | Sclerostin |
| SR | Steroid receptor |
| SRC | Steroid receptor coactivator |
| SRE | Serum response element |
| SRF | Serum response factor |
| STAT | Signal transducer and activator of transcription |
| SWI/SNF | ATP-dependent chromatin remodeling complex |
| TAZ | WW domain-containing transcription regulator protein 1 |
| TBP | TATA-binding protein |
| TCF/LEF | T-cell factor/lymphoid enhancer factor |
| TGF-β | Transforming ... |