title: Structural transformation of the nuclear matrix in situ.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus / Q000648:ultrastructure; D002467:Cell Nucleus / Q000032:analysis / Q000187:drug effects / Q000648:ultrastructure*; D003609:Dactinomycin / Q000494:pharmacology; D009685:Nuclear Envelope / Q000648:ultrastructure; D011506:Proteins / Q000032:analysis; D013769:Tetrahymena pyriformis / Q000648:ultrastructure*
chemical_list: D011506:Proteins; D003609:Dactinomycin