Catalytic activity:Diacylglycerol + H (2) O = monoacylglycerol + a carboxylate. ,Catalytic activity:Monoacylglycerol + H (2) O = glycerol + a carboxylate. ,Catalytic activity:Triacylglycerol + H (2) O = diacylglycerol + a carboxylate. ,enzyme regulation:Rapidly activated by cAMP-dependent phosphorylation under the influence of catecholamines. Dephosphorylation and inactivation are controlled by insulin. ,Function:In adipose tissue and heart , it primarily hydrolyzes stored triglycerides to free fatty acids , while in steroidogenic tissues , it principally converts cholesteryl esters to free cholesterol for steroid hormone production. ,pathway:Glycerolipid metabolism; triacylglycerol degradation. ,similarity:Belongs to the 'GDXG' lipolytic enzyme family. ,subcellular location:Found in the high-density caveolae. Translocates to the cytoplasm from the caveolae upon insulin stimulation. ,subunit:Interacts with PTRF in the adipocyte cytoplasm. ,
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