Description
Phospholipase C is induced by thrombin and platelet-activating factor, forming 1,2-diacylglycerol and phosphatidic acid. PLC hydrolyzes the phosphate bond on phosphatidylcholine and other glycerophospholipids yielding diacylglycerol; this enzyme will also hydrolyze the phosphate bonds of sphingomyelin, cardiolipin, choline plasmalogen and ceramide phospholipids.
Abbr
PLC, Native (Clostridium perfringens (C. welchii))
Source
Clostridium perfringens (C. welchii)
Form
Type I, Lyophilized powder in buffered salts; Type II, lyophilized powder; Type III, buffered aqueous glycerol solution; Solution in 60% (v/v) glycerol containing 10 mM Tris-HCl, pH 8.0 and 10 mM EDTA; Type IV, lyophilized powder, Contains phosphate buffer salts, EDTA and stabilizer.
Enzyme Commission Number
EC 3.1.4.3
Activity
Type I, > 150 units/mg protein; Type II, 10-50 units/mg protein; Type III, Type IV, > 1,000 units/mg protein (Lowry).
Unit Definition
One unit will liberate 1.0 μmole of water soluble organic phosphorus from egg yolk L-α-phosphatidylcholine per min at pH 7.3 at 37°C.
Warnings
Chromatographically purified
Synonyms
Phospholipase C; PLC; 9001-86-9; lipophosphodiesterase I; lecithinase C; Clostridium welchii α-toxin; Clostridium oedematiens β-and γ-toxins; lipophosphodiesterase C; phosphatidase C; heat-labile hemolysin; α-toxin; EC 3.1.4.3