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Descriptor English: Proinsulin
Descriptor Spanish: Proinsulina
Descriptor proinsulina
Scope note: Polipéptido pancreático de unos 110 aminoácidos, dependiendo de las especies, que es el precursor de la insulina. La proinsulina es producida por las CÉLULAS BETA PANCREÁTICAS y consta secuencialmente de la cadena N-terminal B, el péptido C de conexión, que puede escindirse mediante proteólisis, y la cadena C-terminal A. También contiene tres enlaces disulfuro, dos de ellos entre la cadena A y la cadena B. Después de la escisión en dos lugares, los productos secretados son la insulina y el péptido C. También se secreta en pequeñas cantidades proinsulina intacta, cuya bioactividad es escasa.
Descriptor Portuguese: Proinsulina
Descriptor French: Proinsuline
Entry term(s): Pro-insuline
Tree number(s): D06.472.699.587.200.500
D12.644.548.586.200.500
D12.776.811.706
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D011384
Scope note: 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.
Allowable Qualifiers: AD administration et posologie
AE effets indésirables
AG agonistes
AI antagonistes et inhibiteurs
AN analyse
BI biosynthèse
BL sang
CF liquide cérébrospinal
CH composition chimique
CL classification
CS synthèse chimique
DE effets des médicaments et des substances chimiques
DF déficit
EC économie
GE génétique
HI histoire
IM immunologie
IP isolement et purification
ME métabolisme
PD pharmacologie
PH physiologie
PK pharmacocinétique
PO intoxication
RE effets des radiations
SD ressources et distribution
ST normes
TO toxicité
TU usage thérapeutique
UL ultrastructure
UR urine
Registry Number: 9035-68-1
CAS Type 1 Name: Proinsulin
DeCS ID: 11816
Unique ID: D011384
NLM Classification: WK 820
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1972/01/01
Date of Entry: 1999/01/01
Revision Date: 2011/06/24
Proinsuline - Preferred
Concept UI M0017685
Preferred term Proinsuline
Entry term(s) Pro-insuline



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