Evidence for two levels of DNA folding in histone-depleted HeLa interphase nuclei.
D002122:Calcium Chloride / Q000494:pharmacology; D002467:Cell Nucleus / Q000378:metabolism / Q000648:ultrastructure; D002499:Centrifugation, Density Gradient; D004247:DNA; D006367:HeLa Cells / Q000378:metabolism / Q000648:ultrastructure; D006657:Histones / Q000378:metabolism*; D006801:Humans; D007399:Interphase; D008623:Mercaptoethanol / Q000494:pharmacology; D008670:Metals / Q000494:pharmacology; D008856:Microscopy, Fluorescence; D009690:Nucleic Acid Conformation / Q000187:drug effects
D006657:Histones; D008670:Metals; D008623:Mercaptoethanol; D004247:DNA; D002122:Calcium Chloride