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. 1979 Jan;6(1):167-79.
doi: 10.1093/nar/6.1.167.

Studies on the association of the high mobility group non-histone chromatin proteins with isolated nucleosomes

C G Mathew, G H Goodwin, E W Johns

Studies on the association of the high mobility group non-histone chromatin proteins with isolated nucleosomes

C G Mathew et al. Nucleic Acids Res. 1979 Jan.

Abstract

Nucleosomes have been isolated from rabbit thymus by sucrose gradient centrifugation, and their high mobility group (HMG) protein content analysed by electrophoresis on polyacrylamide gels. The results suggest that proteins HMG 14 and HMG 17 are associated with the core particle of the nucleosome, and that there are two or more sub-populations of both HMG 1 and HMG 2 molecules. One sub-population appears to be fairly tightly bound to the nucleosome, while another is rapidly released from the chromatin by digestion with micrococcal nuclease. The latter fraction may participate in a higher order folding of the nucleosomes.

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