31P magnetic resonance of DNA in nucleosome core particles of chromatin.
The 31P magnetic resonance spectrum of nucleosome cores from calf thymus nuclei has been measured. The spectrum consists of a single symmetric line, with a maximum second component of 5%. It is argued that this reflects a single average state of the DNA backbone, and does not support models that invoke backbone kinking at a frequency of 1 in 10 base pairs.
D000818:Animals; D002417:Cattle; D002843:Chromatin / Q000648:ultrastructure*; D004247:DNA; D006860:Hydrogen Bonding; D009682:Magnetic Resonance Spectroscopy; D009690:Nucleic Acid Conformation; D010710:Phosphates; D013950:Thymus Gland / Q000648:ultrastructure
D002843:Chromatin; D010710:Phosphates; D004247:DNA