Category: Other (Other Neuropeptides)
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Gastrin-releasing peptide aka GRP
Gastrin-releasing peptide, also known as GRP, is a neuropeptide, a regulatory molecule that has been implicated in a number of physiological and pathophysiological processes. Most notably, GRP stimulates the release of gastrin from the G cells of the stomach. The gene from which GRP is derived encodes a number of bombesin-like peptides. Its 148-amino acid preproprotein, following cleavage of a signal peptide, is further processed to…
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Bombesin (and a wee bit of ranatensin)
Bombesin is a 14-amino acid peptide originally isolated from the skin of the European fire-bellied toad (Bombina bombina) by Vittorio Erspamer et al. and named after its source. 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, and -3. It also activates these receptors in the brain. Together with cholecystokinin, it is the second major source of negative feedback signals that stop…
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Gastrin-releasing peptide aka GRP and Pro-Gastrin-Releasing-Peptide aka Pro-GRP (and something called PreProGRP?)
Gastrin-releasing peptide, also known as GRP, is a neuropeptide, a regulatory molecule that has been implicated in a number of physiological and pathophysiological processes. Most notably, GRP stimulates the release of gastrin from the G cells of the stomach. Function GRP is also involved in the biology of the circadian system, playing a role in the signaling of light to the master circadian oscillator in…
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