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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Major high mobility group like proteins of Drosophila melanogaster embryonic nuclei.

Nuclei from Drosophila melanogaster embryos contain three major proteins which are extracted by 0.35 M NaCl and by 2% perchloric acid. One of these is histone H1, and we refer to the other two as A63 and A13 in accordance with their molecular weights determined by electrophoresis on sodium dodecyl sulfate (NaDodSO4)-polyacrylamide gels (63,000 and 13,000, respectively). The molecular weight of A13, based on its amino acid composition, is approximately 10,000. The amino acid analyses of A63 and A13 show that both of these proteins have high proportions of acidic and basic amino acid residues, a property characteristic of the high mobility group proteins isolated from vertebrate tissues. While A13 comigrates with histone H2A on NaDodSO4-polyacrylamide gels and with H2B on acid/urea gels, it can be readily resolved from the histones by Triton/acid/urea-Na DodSO4 two-dimensional electrophoresis.[1]


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