quantitative determinations of the proteins by electrophoresis showed that the relative amounts of precursor proteins ( 1a , 3b , 1b ) , of some of the intermediate polypeptides ( 3a , 3c , 5b , 2 ) , and of one end product ( vp1 ) were higher in the nucleus than in the cytoplasm .
C0033684
proteins
C0033665
precursor proteins