analysis of hmg proteins and histone h1 by acetic acid/urea polyacrylamide gel electrophoresis demonstrated that the ( adp-ribosyl ) n-ation of hmg 14 and 17 and histone h1 increased by 12- and 5-fold , respectively , in the metaphase chromosomes as compared with that in the g1 phase cell nuclei .
C0019797
hmg 14
C0007610
cell nuclei