incorporation of [ 35s ] methionine into low-density-lipoprotein ( ldl ) receptors by normal fibroblasts and those from a homozygous familial hypercholesterolaemic ( fh ) subject who produced defective but immunoprecipitable receptor proteins of normal size , was compared with the ability of the cells to bind ldl and their content of ldl receptor protein determined using a double-antibody radioimmunoassay .
C0016030
fibroblasts
C0007634
cells