Publication Date:
1994-07-15
Description:
Peptide alpha amidation is required to produce some hormones, such as gastrin, from their glycine-extended precursors. This terminal posttranslational processing reaction is thought to be essential for the biological activation of many peptide hormones; only amidated gastrin exerts a physiological effect that results in gastric acid secretion. However, both amidated gastrin and glycine-extended gastrin stimulate proliferation of exocrine pancreatic cell line AR4-2J through selective receptors for the substrate and the product, respectively, of peptide alpha amidation. Thus, the amidation reaction may function as a determinant of the specific biological actions of products derived from prohormones.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seva, C -- Dickinson, C J -- Yamada, T -- K08-DK-01903/DK/NIDDK NIH HHS/ -- P30-DK-34933/DK/NIDDK NIH HHS/ -- R01-DK-34306/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1994 Jul 15;265(5170):410-2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor 48109.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8023165" target="_blank"〉PubMed〈/a〉
Keywords:
Benzodiazepinones/pharmacology
;
Binding Sites
;
Cell Division/*drug effects
;
Gastrins/metabolism/*pharmacology
;
Humans
;
Indoles/pharmacology
;
Meglumine/analogs & derivatives/pharmacology
;
Octreotide/pharmacology
;
Ornithine Decarboxylase/metabolism
;
*Phenylurea Compounds
;
Receptors, Cholecystokinin/antagonists & inhibitors
;
Tumor Cells, Cultured
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
