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  • Title: Extraction of histones H2A, H3 and H4 from yeast nuclei. Measurement of the extent of yeast histone acetylation following one-dimensional gel electrophoresis.
    Author: Nelson DA, Alonso WR.
    Journal: Biochim Biophys Acta; 1983 Nov 17; 741(2):269-71. PubMed ID: 6360213.
    Abstract:
    Yeast histones H2A, H3 and H4 were specifically extracted from purified nuclei using a 2% NaCl/75% ethanol solution. The extraction resulted in the complete removal of H2A, H3 and H4 from the nuclear pellet, as monitored by SDS-polyacrylamide gel electrophoresis of the protein. The relative absence of nonhistone proteins from this histone subset simplifies the determination of the extent of histone modification in yeast. Levels of H4 acetylation were measured directly on Coomassie blue-stained Triton acid-urea gels and the levels verified by gel fluorography of the [3H]acetate-labeled histone.
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