FIGURE 1 Top: immunodiffusion pattern obtained with
antiserum A (center well) against LDL (well 1). The
major precipitin arc formed by LDL and its antiserum,
representing the B apoprotein, is also present in VLDL
(wells 2, 5) but is absent from HDL (well 3) and
lipoprotein-free serum (well 4). Whole rat serum (well 6)
was tested against each antiserum. Middle: immunodif