Biomaterial Database

Emptying the Pool: Modular Insulin Secretion From the Pancreas. 2016

Mark A Rizzo

Department of Physiology, University of Maryland School of Medicine, Baltimore, MD markrizzo.umaryland@gmail.com.

UI	MeSH Term	Description	Entries
D011384	Proinsulin	A pancreatic polypeptide of about 110 amino acids, depending on the species, that is the precursor of insulin. Proinsulin, produced by the PANCREATIC BETA CELLS, is comprised sequentially of the N-terminal B-chain, the proteolytically removable connecting C-peptide, and the C-terminal A-chain. It also contains three disulfide bonds, two between A-chain and B-chain. After cleavage at two locations, insulin and C-peptide are the secreted products. Intact proinsulin with low bioactivity also is secreted in small amounts.
D002096	C-Peptide	The middle segment of proinsulin that is between the N-terminal B-chain and the C-terminal A-chain. It is a pancreatic peptide of about 31 residues, depending on the species. Upon proteolytic cleavage of proinsulin, equimolar INSULIN and C-peptide are released. C-peptide immunoassay has been used to assess pancreatic beta cell function in diabetic patients with circulating insulin antibodies or exogenous insulin. Half-life of C-peptide is 30 min, almost 8 times that of insulin.	Proinsulin C-Peptide,C-Peptide, Proinsulin,Connecting Peptide,C Peptide,C Peptide, Proinsulin,Proinsulin C Peptide
D003920	Diabetes Mellitus	A heterogeneous group of disorders characterized by HYPERGLYCEMIA and GLUCOSE INTOLERANCE.
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D050417	Insulin-Secreting Cells	A type of pancreatic cell representing about 50-80% of the islet cells. Beta cells secrete INSULIN.	Pancreatic beta Cells,beta Cells, Pancreatic,Pancreatic B Cells,B Cell, Pancreatic,B Cells, Pancreatic,Cell, Insulin-Secreting,Cells, Insulin-Secreting,Insulin Secreting Cells,Insulin-Secreting Cell,Pancreatic B Cell,Pancreatic beta Cell,beta Cell, Pancreatic