Английская Википедия:Cholecystokinin A receptor

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Версия от 04:49, 18 февраля 2024; EducationBot (обсуждение | вклад) (Новая страница: «{{Английская Википедия/Панель перехода}} {{cs1 config|name-list-style=vanc}} {{Short description|Protein-coding gene in the species Homo sapiens}} {{Infobox_gene}} {{Infobox protein family | Symbol = CholecysA-Rec_N | Name = Cholecystokinin A receptor, N-terminal domain | image = PDB 1d6g EBI.jpg | width = | caption = molecular complex of cholecystokinin-8 and n-terminus of the cholecystokinin a receptor by nmr spectrosc...»)
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Шаблон:Cs1 config Шаблон:Short description Шаблон:Infobox gene Шаблон:Infobox protein family The Cholecystokinin A receptor is a human protein, also known as CCKAR or CCK1, with CCK1 now being the IUPHAR-recommended name.

Function

This gene encodes a G-protein coupled receptor that binds sulfated members of the cholecystokinin (CCK) family of peptide hormones. This receptor is a major physiologic mediator of pancreatic enzyme secretion and smooth muscle contraction of the gallbladder and stomach. In the central and peripheral nervous system this receptor regulates satiety and the release of beta-endorphin and dopamine.[1]

The extracellular, N-terminal, domain of this protein adopts a tertiary structure consisting of a few helical turns and a disulfide-cross linked loop. It is required for interaction of the cholecystokinin A receptor with its corresponding hormonal ligand.[2]

Selective Ligands

Agonists

  • Cholecystokinin
  • CCK-4
  • SR-146,131
  • A-71623 - modified tetrapeptide, potent and selective CCKA agonist, IC50 3.7nM, 1200x selectivity over CCKB, CAS# 130408-77-4

Antagonists

See also

References

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External links

Further reading

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Шаблон:NLM content

Шаблон:PDB Gallery Шаблон:G protein-coupled receptors Шаблон:Neuropeptide receptors

Шаблон:InterPro content