1. Comparative studies of the @entity22878 -directed @entity815 -incorporating activity of cell-free systems derived from @entity35 and @entity1573 livers demonstrated markedly lower activity in the @entity1573 liver system. 2. The @entity1573 liver cell @entity43678 contained the factor(s) responsible for this lower activity. Ribosomes from @entity1573 and @entity35 performed equally well in the presence of @entity35 liver cell @entity43678 . @entity1573 liver cell @entity43678 , when mixed with @entity35 liver cell @entity43678 , caused an inhibition of incorporation of @entity815 into acid-insoluble material. 3. Though ribosomal preparations and cell @entity43678 from both @entity35 and @entity1573 liver degraded @entity22878 to some extent, the @entity1573 liver cell @entity43678 contained the largest amount of activity. 4. @entity35 liver cell @entity43678 inhibited the @entity68235 activities of ribosomal preparations, but no such @entity68235 inhibition could be demonstrated with @entity1573 liver cell @entity43678 .

@entity68235 activity in cell-free amino acid-incorporating systems from XXXX liver.

@entity43678 :: ('29339(Tax:10116)', 'Gene') :: ['sap'] @entity1573 :: ('9031', 'Species') :: ['chicken', 'Chicken'] @entity35 :: ('10116', 'Species') :: ['rat', 'Rat'] @entity22878 :: ('CHEBI:73279', 'Chemical') :: ['polyuridylic acid'] @entity815 :: ('CHEBI:28044', 'Chemical') :: ['phenylalanine'] @entity68235 :: ('430764(Tax:9031)', 'Gene') :: ['nuclease']
@entity1573 :: (9031,Species) :: ['chicken']
