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Defective ACTH causes obesity and POMCD
Summary
- Organism
- Homo sapiens (human)
- Reactome
- R-HSA-5579031
- PubChem
- R-HSA-5579031
- Description
-
- The precursor peptide pro-opiomelanocortin (POMC) gives rise to many peptide hormones through cleavage. The cleavage products corticotropin (ACTH) and beta-lipotropin give rise to smaller peptides that have distinct biologic activities: alpha-melanotropin and corticotropin-like intermediate lobe peptide (CLIP) are formed from ACTH; gamma-LPH and beta-endorphin are formed from beta-LPH. ACTH (POMC(138-176) stimulates the adrenal glands to release cortisol, a glucocorticoid released in response to stress whose primary functions are to stimulate gluconeogenesis, suppress the immune system and aid metabolism of fats, proteins and carbohydrates.
Defects in ACTH can cause obesity (MIM:601665) resulting in excessive accumulation of body fat (Challis et al. 2002, Millington 2013). Defects in ACTH can also cause pro-opiomelanocortinin deficiency (POMCD; MIM:609734) where affected individuals present early-onset obesity, adrenal insufficiency and red hair (Krude et al. 1998, Krude et al. 2003).
- The precursor peptide pro-opiomelanocortin (POMC) gives rise to many peptide hormones through cleavage. The cleavage products corticotropin (ACTH) and beta-lipotropin give rise to smaller peptides that have distinct biologic activities: alpha-melanotropin and corticotropin-like intermediate lobe peptide (CLIP) are formed from ACTH; gamma-LPH and beta-endorphin are formed from beta-LPH. ACTH (POMC(138-176) stimulates the adrenal glands to release cortisol, a glucocorticoid released in response to stress whose primary functions are to stimulate gluconeogenesis, suppress the immune system and aid metabolism of fats, proteins and carbohydrates.
Click on a node on the pathway to see its details. Glycoproteins are marked with a glycoprotein icon in their name.
| UniProt ID | Protein Name | Gene Symbol | Pathway Viewer |
|---|---|---|---|
| P01189 | Pro-opiomelanocortin |
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| Q01718 | Adrenocorticotropic hormone receptor |
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