<prompt> Lipoprotein lipase is activated by:Apo C1Apo C2Apo C3Apo A1  <response>: lipoprotein lipase LPL - LPL is an extracellular enzyme that is anchored by heparan sulfate to the capillary walls of most tissues, but predominantly those of adipose tissue and cardiac and skeletal muscles. It plays some role in TAG degradation in chylomicrons and VLDL and is paicularly impoant in HDL metabolism Its activate mainly by apo C II and sometime apo C I and inactivate by apo C III apo A II Deficiency of LPL is lead to type I hyperlipoproteinemia also known as familial LPL deficiency 