[Heterogeneity of cationic proteins of chromatin from various tissues]

Using electrophoresis in 12% polyacrylamide gel with 8 M urea and 0.6 mM Triton X-100, the spectra of cationic chromosomal proteins from various tissues and animal species were studied. The tissue specificity of the histone spectra is due to the sex, tissue and specific differences. Histones H2a, H2b, H3 and H4 as well as protamines and protamine-like proteins are represented in chromatin as a sequence of subfractions. The data on heterogeneity of the tissue spectra for the histones can be interpreted in terms of their possible participation in the control of genome functioning.