although micrococcal nuclease recognized a unique structural feature of active myotube chromatin , as evidenced by the appearance of hybridized skeletal alpha-actin sequences as a smear rather than the nucleosomal ladder exhibited by inactive and bulk sequences , neither the skeletal alpha-actin gene nor the inactive alpha d-globin gene was exclusively localized in the 100 mm salt fraction .
C0008546
chromatin
C0028623
nucleosomal