title: Brain-specific effect of the S-100 protein on the RNA-polymerase I activity in isolated nuclei.
mesh_terms: D000818:Animals; D001921:Brain / Q000648:ultrastructure*; D002467:Cell Nucleus / Q000187:drug effects / Q000201:enzymology*; D002642:Chick Embryo; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism*; D003609:Dactinomycin / Q000494:pharmacology; D008099:Liver / Q000201:enzymology / Q000648:ultrastructure; D009419:Nerve Tissue Proteins / Q000494:pharmacology*; D009418:S100 Proteins / Q000494:pharmacology*
chemical_list: D009419:Nerve Tissue Proteins; D009418:S100 Proteins; D003609:Dactinomycin; D012321:DNA-Directed RNA Polymerases