the direct addition of insulin to isolated rat liver nuclei in the presence of atp stimulated the release of previously 14c-labeled trichloroacetic acid-precipitable mrna-like material , and the direct addition of insulin to nuclear envelopes stimulated the activity of nucleoside triphosphatase , the enzyme that participates in mrna nucleocytoplasmic transport .
C0007610
nuclei
C0028584
nuclear envelopes