to elucidate the role of lysine-rich histones we carried out the selective extraction of histone h1 from erythrocyte nuclei by a solution containing 0.3-0.35 m nacl ( ph 3.0 ) or cleavage of histones h1 and h5 by mild trypsinization in the presence of mg2+ ions .
C0019652
histones
C0007610
nuclei