has subject area Biochemical Phenomena - Transcription, Genetic Cell Line - K562 Cells Erythroid Cells - K562 Cells Gene Expression - Transcription, Genetic Genetic Structures - Chromatin Genome, Human Heterocyclic Compounds, 3-Ring - Dactinomycin Humans Intranuclear Space - Chromatin Macrocyclic Compounds - Dactinomycin Models, Biological Nucleoproteins - Chromatin Peptides - Dactinomycin RNA Ribonucleases Tumor Cells, Cultured - K562 Cells