fibroblast low density lipoprotein ( ldl ) plasma membrane receptor activity , measured as 125i-ldl association ( plasma membrane binding plus intracellular accumulation ) and degradation was determined in cell strains from 14 monozygotic ( mz ) and 21 like-sexed dizygotic ( dz ) normolipidemic twin pairs .
C0007603
plasma membrane
C0007634
cell