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  • Title: Interaction of a non-histone chromatin protein (high-mobility group protein 2) with DNA.
    Author: Goodwin GH, Shooter KV, Johns EW.
    Journal: Eur J Biochem; 1975 Jun; 54(2):427-33. PubMed ID: 1175594.
    Abstract:
    1. The interaction with DNA of the calf thymus chromatin non-histone protein termed the high-mobility group protein 2 has been studied by sedimentation analysis in the ultracentrifuge and by measuring the binding of the 125I-labelled protein to DNA. The results have been compared with those obtained previously by us [Eur. J. Biochem. (1974) 47, 263-270] for the interaction of high-mobility group protein 1 with DNA. Although the binding parameters are similar for these two proteins, high-mobility group protein 2 differs from high-mobility group protein 1 in that the former appears to change the shape of the DNA to a more compact form. 2. The molecular weight of high-mobility group protein 2 has been determined by equilibrium sedimentation and a mean value of 26 000 was obtained. 3. A low level of nuclease activity detected in one preparation of high-mobility group protein 2 has been investigated.
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