lower molecular weight forms of apolipoprotein b ( b74 and b26 ) increased relative to apolipoprotein b100 with increasing density , ranging from undetectable in fraction 1 to apolipoproteins b26 and b74 comprising 30 % of the total mass of apolipoprotein b in fraction 6 .
C0003591
apolipoproteins
C0003593
apolipoprotein b