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. 1966 Mar;98(3):888-97.
doi: 10.1042/bj0980888.

Metabolic properties of histones from rat liver and thymus gland

M G Ord, L A Stocken

Metabolic properties of histones from rat liver and thymus gland

M G Ord et al. Biochem J. 1966 Mar.

Abstract

1. The incorporation of (14)C-labelled amino acids into acid-extractable proteins from rat-liver and -thymus nuclei confirmed the existence of a protein component with a higher uptake than that into the major histone components. 2. This rapidly labelled component appeared to contain the thiol groups detectable in the acid extracts. 3. Histone f1 contained 1mol. of serine phosphate/mol. of mol.wt. of 42000-43000. 4. Phosphate was present in other components of the 50mm-hydrochloric acid extract from liver and thymus nuclei, and was probably associated with the thiol-containing component. 5. The difference in amino acid uptake into the histones of diffuse and dense chromatin was confirmed. Dense chromatin was found to have a higher proportion of disulphide than did diffuse chromatin.

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