Diglyceride; glycerol with two esterified acyl moieties, either 1,3-d. or 1,2-d.; if the two acyl groups are nonidentical, there are four possible stereoisomers; 1,2-d. is an intermediate in the synthesis of triacylglycerols and of lecithin; also serves as a second messenger in stimulating the activity of protein kinase C.
- d. acyltransferase an enzyme, in fat biosynthesis, that catalyzes the transfer of an acyl moiety from acyl-CoA to 1,2-d. thus forming free coenzyme A and triacylglycerol.

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di·acyl·glyc·er·ol (DAG) (di-a″səl-glisґər-ol) a diester of glycerol in which two fatty acids are linked to its hydroxyl groups, usually at positions 1 and 2. Diacylglycerols are triglyceride and phospholipid degradation products and are second messengers in calcium-mediated responses to hormones, activating protein kinase C isozymes.

Medical dictionary. 2011.

См. также в других словарях:

  • Diacylglycerol — Allgemeine Strukturformel von Diacylglycerol. R steht für die Kohlenstoffketten der Acylreste. Bei Diacylglycerol (auch Diacylglycerin) handelt es sich um ein Produkt der Spaltung des Membranlipids Phosphatidylinositol 4,5 bisphosphat (PIP2)… …   Deutsch Wikipedia

  • Diacylglycerol — …   Википедия

  • diacylglycerol — Glycerol substituted on the 1 and 2 hydroxyl groups with long chain fatty acyl residues. DAG is a normal intermediate in the biosynthesis of phosphatidyl phospholipids and is released from them by phospholipase C activity. DAG from phosphatidyl… …   Dictionary of molecular biology

  • diacylglycerol — noun diglyceride …   Wiktionary

  • Diacylglycerol — Di|a|cyl|gly|ce|rin, Di|a|cyl|gly|ce|rol [↑ di , ↑ Acyl u. ↑ Glycerin bzw. ↑ Glycerol] svw. ↑ Diglycerid …   Universal-Lexikon

  • Diacylglycerol kinase — catalytic domain Identifiers Symbol DAGK cat Pfam PF00781 Pfam clan …   Wikipedia

  • Diacylglycerol (DAG) oil — is a cooking oil in which the ratio of triglycerides to DAG is shifted to contain mostly DAG, unlike conventional cooking oils, which are rich in TAG. Vegetable DAG oil, for example, contains 80% DAG[1] and is used as a 1:1 replacement for liquid …   Wikipedia

  • Diacylglycerol cholinephosphotransferase — Identifiers EC number CAS number 9026 13 5 …   Wikipedia

  • Diacylglycerol lipase — diacylglycerol lipase, alpha Identifiers Symbol DAGLA Alt. symbols C11orf11 Entrez 747 …   Wikipedia

  • Diacylglycerol—sterol O-acyltransferase — Identifiers EC number CAS number 79586 23 5 …   Wikipedia

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