employing a chromatin fractionation procedure on micrococcal nuclease-treated nuclei , we demonstrate that transcriptionally active k igl chromatin lacks a canonical nucleosomal repeat and exhibits a pronounced association with insoluble nuclear material but is processed by nuclease to a soluble nucleosomal component that apparently lacks histone h1 and is enriched in high mobility group proteins .
C0008546
chromatin
C0007610
nuclei