most of the radioactivity transferred from vldl to low density ( ldl ) and high density ( hdl ) lipoproteins was associated with two peptides , identified in these studies by polyacrylamide gel electrophoresis as zone iva and ivb peptides ( fast-migrating peptides , possibly analogous to some human c apolipoproteins ) , although radioactivity initially associated with zone i ( analogous to human apolipoprotein b ) and zone iii ( not characterized ) was also transferred to ldl and hdl .
C0023825
vldl
C0023820
lipoproteins