... of H3 and H4histones, and the remaining DHSs in the deleted cellswere examined to determine the roles of these DHSson the transcription of Ig-b gene and on the mainten-ance of the active ... both the acetylation state of the promoter region of the active b-globin gene [19] and the DNase I general sensitivity in the b-globin locusare the same as the wild type control [17]. Thus,there ... Size of the bands observed in each autoradiogram is indicated at the right side. The 6.6 kb banddetected in lanes b, c, and d in autoradiogram (B), and lanes c and d in (C) is derived from the extra...