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Bombesin
Identifiers
CAS number 31362-50-2
PubChem 16133891
Properties
Molecular formula C71H110N24O18S
Molar mass 1619.85
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Bombesin is a 14-amino acid peptide originally isolated from the skin of a frog. It has two known homologs in mammals called neuromedin B and gastrin releasing peptide. It stimulates gastrin release from G cells. It activates three different G-protein-coupled receptors known as BBR1 2 & 3. It also activates these receptors in the brain. Together with cholecystokinin, it is the second major source of negative feedback signals that stop eating behaviour.

Bombesin is also a tumor marker for small cell carcinoma of lung, gastric cancer, and neuroblastoma.

See also

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