Triacylglycérol-lipase

Triacylglycérol-lipase

La triacylglycérol-lipase est une enzyme qui catalyse la réaction suivante : triglycéride + H2O = 3 acides gras + glycérol.

Cette enzyme est responsable de la lipolyse : elle est présente notamment dans les adipocytes et est activée par le glucagon ou l'adrénaline afin de libérer des acides gras dans le sang en cas de jeûne. On l'appelle pour cette raison la lipase hormono-dépendante.


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  • Triacylglycerol lipase — can refer to: * pancreatic lipase * gastric lipase * lingual lipase …   Wikipedia

  • triacylglycerol lipase — tri·acyl·glyc·er·ol li·pase (tri a″səl glisґə rol liґpās) [EC 3.1.1.3] an enzyme of the hydrolase class that catalyzes the cleavage of the two outer fatty acyl groups from triglycerides in the digestion of dietary fats.… …   Medical dictionary

  • Lipase — A lipase is a water soluble enzyme that catalyzes the hydrolysis of ester bonds in water–insoluble, lipid substrates [cite journal |author=Svendsen A |title=Lipase protein engineering |journal=Biochim Biophys Acta |volume=1543 |issue=2… …   Wikipedia

  • lipase — 1. In general, any fat splitting or lipolytic enzyme; a carboxylesterase; e.g., triacylglycerol l., phospholipase A2, lipoprotein l.. 2. SYN: triacylglycerol l.. * * * li·pase lip .ās, līp , .āz n any enzyme (as one secreted by the pancreas) that …   Medical dictionary

  • triacylglycerol — Glycerol esterified at each of its three hydroxyl groups by a fatty (aliphatic) acid; e.g., tristearoylglycerol. SYN: triglyceride. t. lipase the fat splitting enzyme in pancreatic juice; it hydrolyzes t. to produce a diacylglycerol …   Medical dictionary

  • Lipase — Li|pa|se 〈f. 19; Biochem.〉 im Verdauungskanal des Menschen u. der Tiere sowie in Pflanzensamen vorkommendes, Fett in Fettsäuren u. Glycerin spaltendes Enzym [zu grch. lipos „Fett“] * * * Li|pa|se [↑ Lip u. ↑ ase], die; , n; Syn.: Triacylglycerol… …   Universal-Lexikon

  • Lysosomal lipase — protein Name=lipase A, lysosomal acid, cholesterol esterase (Wolman disease) caption= width= HGNCid=6617 Symbol=LIPA AltSymbols= EntrezGene=3988 OMIM=278000 RefSeq=NM 000235 UniProt=P38571 PDB= ECnumber=3.1.1.3 Chromosome=10 Arm=q Band=23.2… …   Wikipedia

  • pancreatic lipase — the triacylglycerol lipase secreted by the pancreas; it is the major intestinal lipase, digesting ingested fats to fatty acids and monoglycerides. The enzyme requires bile salts and colipase for activity …   Medical dictionary

  • triglyceride lipase — tri·glyc·er·ide lip·ase (tri glisґə rīd liґpās) triacylglycerol lipase …   Medical dictionary

  • Hormone-sensitive lipase — Lipase, hormone sensitive, also known as LIPE, is a human gene.cite web | title = Entrez Gene: LIPE lipase, hormone sensitive| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=3991| accessdate = ] PBB Summary …   Wikipedia

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