Natural Human Apoa-I Mutations L144R, A164S and L178P Alter Apoa-I and HDL Structure and Functionality

Aim: Naturally occurring point mutations in apoA-I, the major protein constituent of HDL, have been associated with increased risk of cardiovascular events and/or low HDL levels. However, the correlation between potential changes in apoA-I/HDL structure, brought about by the mutation, and changes in apoA-I/HDL functions haven’t been examined. Here we examined how such three natural mutations in human apoA-I (L144R, A164S and L178P) affect the conformational integrity and atheroprotective functions of apoA-I or HDL.