title: Chromatin superstructure: the next level of structure above the nucleosome has an alternating character. A two-nucleosome based series is generated by probes armed with DNAase-I acting on isolated nuclei.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000032:analysis* / Q000187:drug effects; D002645:Chickens; D002843:Chromatin / Q000032:analysis / Q000648:ultrastructure*; D003850:Deoxyribonuclease I; D003851:Deoxyribonucleases / Q000494:pharmacology*; D004720:Endonucleases / Q000494:pharmacology*; D004912:Erythrocytes / Q000032:analysis; D008099:Liver / Q000032:analysis; D046911:Macromolecular Substances; D009707:Nucleosomes / Q000032:analysis*; D051381:Rats
chemical_list: D002843:Chromatin; D046911:Macromolecular Substances; D009707:Nucleosomes; D003851:Deoxyribonucleases; D004720:Endonucleases; D003850:Deoxyribonuclease I