a protein of large molecular mass ( estimated molecular mass : 312 +/- 41 kda , mean +/- sd , n = 8 ) could be immunoprecipitated from the cells at all chase periods between 5 min and 60 min with both monoclonal antibodies to a narrow density cut of the low density lipoprotein ldl-2 ( density : 1.030-1.055 g/ml ) and polyclonal antibodies to the apolipoprotein b apo b 100 or to a narrow density cut of ldl-2 ( density : 1.030-1.055 g/ml ) .
C0205666
apolipoprotein b
C0003593
b apo