Pentagastrin
From Wikipedia, the free encyclopedia
Pentagastrin
|
|
Systematic (IUPAC) name | |
4-(1-carbamoyl-2-phenyl-ethyl)amino-3-[2-[3-(1H-indol-3-yl)-2- [3-(2-methylpropoxycarbonylamino)propanoylamino]propanoyl]amino- 4-methylsulfanyl-butanoyl]amino-4-oxo-butanoic acid | |
Identifiers | |
CAS number | |
ATC code | V04 |
PubChem | |
DrugBank | |
Chemical data | |
Formula | C37H49N7O9S |
Mol. mass | 767.893 g/mol |
Pharmacokinetic data | |
Bioavailability | ? |
Metabolism | ? |
Half life | 10 minutes or less |
Excretion | ? |
Therapeutic considerations | |
Pregnancy cat. |
? |
Legal status | |
Routes | ? |
Pentagastrin is a synthetic polypeptide that has effects like gastrin when given parenterally. It stimulates the secretion of gastric acid, pepsin, and intrinsic factor, and has been used as a diagnostic aid as the pentagastrin-stimulated calcitonin test.
Pentagastrin binds to the cholecystokinin-B receptor, which is expressed widely in the brain. Activation of these receptors activates the phospholipase C second messenger system. When given intravenously it causes panic attacks.
Pentagstrin's IUPAC chemical name is "L-Phenylalaninamide, N-((1,1-dimethylethoxy)carbonyl)-beta-alanyl-L-tryptophyl-L-methionyl-L-alpha-aspartyl".