"Proinsulin" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
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.
| Descriptor ID |
D011384
|
| MeSH Number(s) |
D06.472.699.587.200.500 D12.644.548.586.200.500 D12.776.811.706
|
| Concept/Terms |
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Below are MeSH descriptors whose meaning is more general than "Proinsulin".
Below are MeSH descriptors whose meaning is more specific than "Proinsulin".
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Below are the most recent publications written about "Proinsulin" by people in Profiles.