title: Fractionation of chromosomes. I. A methodological study on the use of partition in aqueous two-phase systems and multiple sedimentation.
mesh_terms: D002458:Cell Fractionation / Q000379:methods*; D002868:Chromosomal Proteins, Non-Histone / Q000032:analysis; D002877:Chromosomes, Human / Q000648:ultrastructure*; D003377:Countercurrent Distribution; D003911:Dextrans; D006367:HeLa Cells; D006657:Histones / Q000032:analysis; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007526:Isoelectric Point; D008677:Metaphase; D011092:Polyethylene Glycols
chemical_list: D002868:Chromosomal Proteins, Non-Histone; D003911:Dextrans; D006657:Histones; D011092:Polyethylene Glycols