<i>GPIHBP1</i> Missense Mutations Often Cause Multimerization of GPIHBP1 and Thereby Prevent Lipoprotein Lipase Binding

Abstract excerpt

RATIONALE: GPIHBP1, a GPI-anchored protein of capillary endothelial cells, binds lipoprotein lipase (LPL) in the subendothelial spaces and shuttles it to the capillary lumen. GPIHBP1 missense mutations that interfere with LPL binding cause familial chylomicronemia. OBJECTIVE: We sought to understand mechanisms by which GPIHBP1 mutations prevent LPL binding and lead to chylomicronemia. METHODS AND RESULTS: We...

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