Heterogeneity of the chromosome fiber.
Evidence is presented that the 250 A thick chromosome fiber consists of clusters of nucleosomes (superbeads) which are heterogeneous in size. In bovine lymphocyte chromatin their number average corresponds to about 12 nucleosomes.
D000818:Animals; D002417:Cattle; D002843:Chromatin / Q000648:ultrastructure*; D002875:Chromosomes / Q000648:ultrastructure*; D004247:DNA / Q000032:analysis*; D008214:Lymphocytes / Q000648:ultrastructure; D046911:Macromolecular Substances; D009690:Nucleic Acid Conformation; D009698:Nucleoproteins / Q000032:analysis*; D011485:Protein Binding; D011487:Protein Conformation
D002843:Chromatin; D046911:Macromolecular Substances; D009698:Nucleoproteins; D004247:DNA