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Phospholipase cleavage sites. An enzyme that displays both PLA 1 and PLA 2 activities is called a phospholipase B. A phospholipase is an enzyme that hydrolyzes phospholipids [1] into fatty acids and other lipophilic substances. There are four major classes, termed A, B, C, and D, which are distinguished by the type of reaction which they catalyze:
Function: Amylase is an enzyme that is responsible for the breaking of the bonds in starches, polysaccharides, and complex carbohydrates to be turned into simple sugars that will be easier to absorb. Clinical Significance: Amylase also has medical history in the use of Pancreatic Enzyme Replacement Therapy (PERT). One of the components is ...
A number of these enzymes have specificity for phosphoinositides. Of the phosphoinositide-specific phospholipase C enzymes, C-beta is regulated by heterotrimeric G protein-coupled receptors, while the closely related C-gamma-1 (PLCG1; MIM 172420) and C-gamma-2 enzymes are controlled by receptor tyrosine kinases.
1-Phosphatidylinositol-4,5-bisphosphate phosphodiesterase beta-3 is an enzyme that in humans is encoded by the PLCB3 gene. [5] [6] The gene codes for the enzyme phospholipase C β3. The enzyme catalyzes the formation of inositol 1,4,5-trisphosphate and diacylglycerol from phosphatidylinositol 4,5-bisphosphate. This reaction uses calcium as a ...
The gene codes for the enzyme phospholipase C β2. The enzyme catalyzes the formation of inositol 1,4,5-trisphosphate and diacylglycerol from phosphatidylinositol 4,5-bisphosphate . This reaction uses calcium as a cofactor and plays an important role in the intracellular transduction of many extracellular signals.
This family consists of lysophospholipase / phospholipase B (EC 3.1.1.5) and cytosolic phospholipase A 2 which also has a C2 domain InterPro: IPR000008. Phospholipase B enzymes catalyse the release of fatty acids from lysophospholipids and are capable in vitro of hydrolyzing all phospholipids extractable from yeast cells. [ 1 ]
Glycosylphosphatidylinositol phospholipase D (EC 3.1.4.50, GPI-PLD, glycoprotein phospholipase D, phosphatidylinositol phospholipase D, phosphatidylinositol-specific phospholipase D) is an enzyme with systematic name glycoprotein-phosphatidylinositol phosphatidohydrolase.
Phospholipase C (EC 3.1.4.3, lipophosphodiesterase I, Clostridium welchii α-toxin, Clostridium oedematiens β- and γ-toxins, lipophosphodiesterase C, phosphatidase C, heat-labile hemolysin, α-toxin) is an enzyme with systematic name phosphatidylcholine cholinephosphohydrolase.